Commit Graph

700 Commits

Author SHA1 Message Date
Glenn Ruben Bakke
f679ee2092 nrf/drivers/ble_drv: Fixing sd_ble_enable bug for SD s132 v.2.0.1
Feather52 target which is using SD s132 v.2.0.1 cannot compile
due to variable containing RAM start address is not used.

This patch enables the correct sd_ble_enable variant for this SD.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
f907139fab nrf/boards/common.ld: Avoid overflowing the .text region.
Similar commit to this one:
6e56e6269f

When .text + .data oveflow available flash, the linker may not show an
error. This change makes sure .data is included in the size calculation.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
4c011e66b4 nrf/modules/machine/pin: Disable pin debug by default.
Saves for the nrf51:
flash: 336 bytes
RAM:     4 bytes
2018-07-18 17:12:25 +10:00
Ayke van Laethem
1b988f1e7d nrf/mpconfigport: Reduce GC stack size for nrf51.
This frees 128 bytes of .bss RAM on the nRF51, at the cost of possibly
more expensive GC cycles. Leave it as-is on the nRF52 as that chip has a
lot more RAM.

This is also done in the micro:bit:
a7544718a7/inc/microbit/mpconfigport.h (L6)
2018-07-18 17:12:25 +10:00
kaasasolut
c1cd7e5155 nrf: Only search for frozen files if FROZEN_MPY_DIR is set 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
725267df09 nrf: Change PYB prefix to MPY 2018-07-18 17:12:25 +10:00
glennrub
f8f14bf0c7 nrf: Add support for s132 v5.0.0 bluetooth stack (#139)
* ports/nrf/boards: Adding linker script for nrf52832 using BLE stack s132 v.5.0.0.

* ports/nrf/drivers/bluetooth: Updating makefile to add BLE_API_VERSION=4 if s132 v5.0.0 is used.

* ports/nrf/drivers/bluetooth: Updating BLE stack download script to also download S132 v5.0.0.

* ports/nrf/drivers/bluetooth: Updating ble_drv.c to handle BLE_API_VERSION=4 (s132 v5.0.0).

* ports/nrf/boards: Updating linker script for nrf52832 with s132 v.5.0.0 bluetooth stack.

* ports/nrf/drivers/bluetooth: Removing commented out code in ble_drv.c

* ports/nrf/drivers/bluetooth: Updating define of GATT_MTU_SIZE_DEFAULT for SD132v5 to be defined using the new name defined in the SD headers in a more generic way.

* ports/nrf/drivers/bluetooth: Cleaning up use of BLE_API_VERSION in the ble_drv.c. Also considering s140v6 API, so not all has been changed to >= if API version 3 and 4 in combo is used. New s140v6 will differ on these, and add a new API not compatible with the API for 3 and 4.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
95bd20522a nrf/drivers/bluetooth: Reset evt_len to size of static buffer each iter.
For each iteration of polling BLE events from the Bluetooth LE stack.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
c8fd71612b nrf/boards/microbit: Enable music, display, image, microbit module.
Enabled by default on microbit targets, with or without BLE stack.  Also
enable softpwm to make display and music module compile.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
f5ed40116f nrf: Add if-def around inclusion of nrf_sdm.h in main.
Not all targets are using bluetooth le.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
6062d46170 nrf: Change board module header from board_modules.h to boardmodules.h.
Applicable for targets with board specific modules.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
0d7976deb2 nrf/boards/microbit: Update docs on top level tick low pri callback. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
1128aacb69 nrf/boards/microbit: Add temperature back to microbit module.
Increases size by 68 bytes.  Should be considered to be removed as temp
module is already providing this functionality.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
b6d01a7dd1 nrf/boards/microbit/modules: Fix tabbing in modmicrobit.c. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
5601fc9397 nrf/boards/microbit: Move microbit target to custom linker script.
To use if BLE stack is enabled.  The custom linker script also set off
space enough to compile in microbitfs+hal_nvmc.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
67b57bebec nrf: Update main.c to init relevant board drivers, if enabled.
If the board has these drivers then they will be initialized:
- softpwm (implicit ticker)
- music module
- board specific module
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
f8ae6b7bfc nrf/modules/music: Remove init of softpwm/ticker upon music module load.
Also update microbit_music_init0 to register low priority ticker callback
for the music module.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
789f8f1c4b nrf/boards/microbit: Update to work with new ticker code.
- Rename microbit_module_init to board_module_init0 which is the generic
  board module init function.
- Add low priority callback registration of display tick handler in the
  module init function.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
91fcde73d2 nrf/drivers/ticker: Rework ticker functions for microbit display/music.
- Rename init function to ticker_init0.
- Implement ticker_register_low_pri_callback (recycle of unused
  set_low_priority_callback function which was unimplemented).
- Add support for registering 2 low pri callbacks.  For now, one intended
  for microbit display, and one for modmusic.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
7c74b7da48 nrf/drivers/softpwm: Rename init function to softpwm_init0. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
d76982e382 nrf/boards/microbit: Include modmicrobit.h in board_modules.h.
So that users of the board module can find the init function of the module
implicitly.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
0b504575e2 nrf/boards/microbit: Add modmicrobit.h to expose module init function. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
1b241be310 nrf/boards/microbit: Attempt to get working display/images without FP.
And update the API to align with new unary/binary function callback
structures.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
9e090a8783 nrf/boards/microbit: Add framework updates to build micro:bit modules.
Makefile and mpconfigport.h update is generic, and could be used by other
boards to give extra modules which are only for a selected board.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
fbc45bd3f3 nrf/boards/microbit: Update board modules from C++ to C-code.
This aligns implementation with new style structures.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
f3386cfc50 nrf/boards/microbit: Rename display/image files from .cpp to .c ext.
Also rename modmicrobit.h to microbitconstimage.h.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
98ad4107ef nrf/boards/microbit: Add copy of microbit font type from microbit-dal.
Source: https://github.com/lancaster-university/microbit-dal.git
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
7a2e136049 nrf/boards/microbit: Add copy of microbit display and image files.
From micro:bit port repository, https://github.com/bbcmicrobit/micropython
2018-07-18 17:12:25 +10:00
Ayke van Laethem
a248db6916 nrf: Option to enable Ctrl-C in NUS console.
Costs 136 bytes on a nRF51822.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
03b8429c0c nrf: Remove default FROZEN_MPY_DIR.
Saves 448 bytes of flash. Can still be enabled using:

    make FROZEN_MPY_DIR=freeze BOARD=foo
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
b493de75f3 nrf: Update usage of mp_obj_new_str by removing last parameter. 2018-07-18 17:12:25 +10:00
Ayke van Laethem
fc5d89e29d nrf/drivers/bluetooth: Start advertising after disconnect.
Disconnecting after a connect would not restart advertising, so
reconnecting may get harder.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
2561bcf0c0 nrf/main: Add ampy support.
The ampy tool expects a "soft reboot" line when it does a soft reset.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
2b32333f90 nrf: Use micropython libm to save flash
Using libm from micropython free up about 5.5kb flash on nrf52
targets which have floating point enabled.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
d9fb8c2585 nrf/main: Run boot.py and main.py on startup. 2018-07-18 17:12:25 +10:00
Ayke van Laethem
66e39d6a4e nrf/modules/uos/microbitfs: Make OSError numeric.
This saves about 80 bytes of code size.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
8482daced2 nrf/drivers/bluetooth/ble_drv: Don't handle non-events.
When there is a non-BLE event (sd_evt_get), the ble_evt_handler is
invoked anyway even if it returns NRF_ERROR_NOT_FOUND.
2018-07-18 17:12:25 +10:00
Ayke
f7facf73f1 nrf: Add micro:bit filesystem.
* ports/nrf: Add micro:bit filesystem.

This filesystem has been copied from BBC micro:bit sources [1] and
modified to work with the nRF5x port.

[1]: https://github.com/bbcmicrobit/micropython/blob/master/source/microbit/filesystem.c

* ports/nrf/modules/uos: Make listdir() and ilistdir() consistent.

This removes the optional direcotry paramter from ilistdir(). This is
not consistent with VFS, but makes more sense when using only the
microbit filesystem.

Saves about 100 bytes.

* ports/nrf/modules/uos: Add code size comment.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
fcc1568546 nrf/boards: Update linker scripts.
* Remove FLASH_ISR and merge .isr_vector into FLASH_TEXT. This saves
    some code space, especially on nRF52 devices.
  * Reserve space for nonvolatile storage of data. This is the place for
    a filesystem (to be added).
2018-07-18 17:12:25 +10:00
Ayke van Laethem
83f38a99a9 nrf/hal/hal_nvmc: Fix non-SD code.
The code wasn't tested yet without a SoftDevice.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
a2b4c93e85 nrf/hal/nvmc: Remove pre-compiler error thrown in nvmc.h, if on nrf52.
This has been tested and works.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
7418795fdf nrf: Disable FAT/VFS by default.
Most boards don't have an SD card so it makes no sense to have it
enabled. It can be enabled per board (mpconfigboard.h).
2018-07-18 17:12:25 +10:00
Ayke van Laethem
cc158f98fe nrf: Implement NVMC HAL.
This is only a library for flash access. Actual file system support will
be added later.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
0487e23842 nrf/boards/arduino_primo: Add missing hal_rng config used by random mod. 2018-07-18 17:12:25 +10:00
Ayke van Laethem
4838b398af nrf: Enable Link-time optimizations 2018-07-18 17:12:25 +10:00
Ayke van Laethem
4e083819f3 nrf: Add compile switch to disable VFS.
This saves about 17kB.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
38afc6553c nrf: Use --gc-sections to reduce code size
This saves about 6-7kB.
2018-07-18 17:12:25 +10:00
Ayke van Laethem
a1116771b0 nrf: Add WT51822-S4AT board. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
51a679752a nrf: Update Makefile and README.md after moving port to new directory 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke
9e7cda8890 nrf: Align help.c builtin help text to use correct type. 2018-07-18 17:12:25 +10:00
Daniel Tralamazza
e22b943508 nrf: Add new port to Nordic nRF5x MCUs.
This commit is a combination of about 802 commits from the initial stages
of development of this port, up to and including the point where the code
was moved to the ports/nrf directory.  The following is a digest of the
original commits in their original order (most recent listed first),
grouped where possible by author.  The list is here to give credit for the
work and provide some level of traceability and accountability.  For the
full history of development please consult the following repository:

    https://github.com/tralamazza/micropython

Unless otherwise explicitly state in a sub-directory or file, all code is
MIT licensed and the relevant copyright holders are listed in the
comment-header of each file.

Glenn Ruben Bakke <glennbakke@gmail.com>
    ports/nrf: Moving nrf51/52 port to new ports directory
    nrf: Aligning with upstream the use of nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, ...)

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/modules/random: Backport of microbit random number generator module

    Backport of micro:bit random module.
    Plugged into the port as a general random module for all nrf51/nrf52 targets. Works both with and without Bluetooth LE stack enabled.

    Behavioral change: seed() method has been removed, as the use of RNG peripheral generates true random sequences and not pseudo-random sequences.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/hal/rng: Adding HAL driver for accessing RNG peripheral

    The driver also takes care of calling the Bluetooth LE stack for random values if the stack is enabled. The reason for this is that the Bluetooth LE stack take ownership of the NRF_RNG when enabled. Tolerate to enable/disable on the fly, and will choose to use direct access to the peripheral if Bluetooth LE stack is disabled or not compiled in at all.

    Driver has been included in the top Makefile, and will not be compiled in unless nrf51_hal_conf.h/nrf52_hal_conf.h defines HAL_RNG_MODULE_ENABLED (1).

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/boards: Adding Arduino Primo board support (#88)

    * nrf: Adding Arduino Primo board support
    * nrf: Adding arduino_primo to target boards table in readme.md
    * nrf/boards: Activating pyb.LED module for arduino_primo board.
    * nrf/boards: Removing define not needed for arduino_primo

    Updating arduino_primo board mpconfigboard.h. Removing a define
    that was wrongly named. Instead of renaming it, it was removed as
    it was never used.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf: Add support for floating point on nrf52 targets.

    Duplicating pattern for detecting location of libm, libc and libgcc
    from teensy port. Activating MICROPY_FLOAT_IMPL (FLOAT) for nrf52 targets
    and adding libs into the compile. For nrf51 targets it is still set to
    NONE as code grows to much (about 30k).

    Some numbers on flash use if MICROPY_FLOAT_IMPL is set to
    MICROPY_FLOAT_IMPL_FLOAT and math libraries are enabled (lgcc, lc, lm).

    nrf51:
    ======

    without float support:
       text    data     bss     dec     hex filename
     144088     260   30020  174368   2a920 build-pca10028/firmware.elf

    with float support:
       text    data     bss     dec     hex filename
     176228    1336   30020  207584   32ae0 build-pca10028/firmware.elf

    nrf52:
    ======

    without float support:
       text    data     bss     dec     hex filename
     142040     356   36236  178632   2b9c8 build-pca10040/firmware.elf

    with float support:
       text    data     bss     dec     hex filename
     165068    1436   36236  202740   317f4 build-pca10040/firmware.elf

Daniel Tralamazza <daniel@tralamazza.com>
    nrf: add a note for running the nrfjprog tool on Linux, and touch up the make sd comment
    nrf: clean compiler warnings

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/drivers/bluetooth: Speedup Bluetooth LE REPL.

    Updating mp_hal_stdout_tx_strn_cooked to pass on the whole string
    to mp_hal_stdout_tx_strn instead of passing byte by byte.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf: Use the name MicroPython consistently in comments
    nrf5: Updating readme with BLE REPL

Ben Whitten <ben.whitten@lairdtech.com>
    nrf/boards: Add DVK BL652 from Laird

    To build run 'make BOARD=dvk_bl652 SD=s132'
    To flash with jlink run 'make sd BOARD=dvk_bl652 SD=s132'
    This will remove the existing licences in the bl652

Ben Whitten <ben.whitten@lairdtech.com>
    nrf/drivers/bluetooth: Allow s132 to use LFCLK
    nrf: Add nordic sd folders to the .gitignore

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/boards: Updating microbit pin mapping for SPI and I2C.
    nrf/boards: Correcting feather52 I2C SDA pin assigned to the board.
    nrf/examples: Update ssd1306 modification example to import correct class.
    nrf/boards: Activate RTC and Timer module and HAL on pca10056. Also swapping out UART with UART DMA variant on this target board.
    nrf/boards: Activate RTC, Timer, I2C, ADC and HW_SPI module and HAL on pca10031.
    nrf/boards: Activate RTC, Timer, I2C and ADC module and HAL on pca10001.
    nrf/boards: Adding RTC and Timer module and HAL to pca10000.
    nrf: Updating README.
    nrf: Removing unused font header.

Daniel Tralamazza <daniel@tralamazza.com>
    rename temperature example

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Adding ubluepy peripheral example that works across nrf51 and nrf52. The example uses Environmenting Sensing Service to provide the temperature characteristic. The temperature is fetched from the machine.Temp module. One note is that the example uses 1 LED which is not present on all boards.
    nrf5/modules/ubluepy: Adding new event constant for gatts write (80) events from bluetooth stacks.
    nrf5/hal/timer: Add support for fetching temperature if bluetooth stack is enabled.
    nrf5/drivers/bluetooth: Make printf in 'ble_drv_service_add' function part of debug log.

Daniel Tralamazza <daniel@tralamazza.com>
    implement #50

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Updating mountsd example with comment from deleted sdcard.py on how to wire SD directly to SPI.
    nrf5/examples: Removing copy of sdcard.py also found in drivers/sdcard.
    nrf5/examples: Removing copy of ssd1306 driver, creating a new class that overrides the needed function for i2c. Also adding some example usage in the comment in top of the file for both SPI and I2C variant.
    nrf5/hal/gpio: Updating toggle inline function to work correctly, currently only used by LED module.
    nrf5/examples: Renaming servo.py to nrf52_servo.py as it is only implemented machine.PWM for nrf52.
    nrf5/freeze: Adding generic example to freeze. Hello world with board name as parameter.
    nrf5/examples: Moving nrf52 specific HW example from freeze to examples to replace test.py with a more generic example.
    nrf5: Update pyb module, and led module to only be compiled in if MICROPY_HW_HAS_LED is set to 1.
    nrf5/boards: Updating boards with correct LED count. Also adding new flag, MICROPY_HW_HAS_LED, to select whether the board has LED's at all. If not, this will unselect LED module from being compiled in.
    nrf5/boards: Updating pca10040 board header to set the LED count.
    nrf5: Generalize script setting LED(1) on to be applied only when there are leds present on the board.
    nrf5: Updating mpconfigport.h to set default values for MICROPY_HW_LED_COUNT (0) and MICROPY_HW_LED_PULLUP (0).
    nrf5/boards/feather52: Update s132 target makefile with dfu-gen and dfu-flash. This enables feather52 with Bluetooth LE. Features to be configured in bluetooth_conf.h.
    nrf5/boards/feather52: Add SERIAL makeflag if dfu-flash target is used.
    nrf5: Updating readme.md file based on review comments.
    nrf5: Update help.c with documentation of CTRL-A and CTRL-B to enter and exit raw REPL mode.
    nrf5: Updating main.c to support RAW REPL.
    Update README.md
    nrf5/modules/music: Updating pitch method to also use configured pin from mpconfigboard.h if set, in the case of lacking kwarg for pin. Also removing some commented out arguments to remove some confusion in the argument list. Done for both play() and pitch().
    nrf5/modules/music: Correct parameter checking of pin argument to deside whether to use MUSIC_PIN define or throw an error. If MUSIC_PIN define is configured the pin argument to music module play() can be elided.
    nrf5/modules/machine: Update timer init to set default IRQ priority before initializing Timer instance.
    nrf5/hal/timer: Update timer hal to use value provided in init to configure the irq_priority.
    nrf5/modules/machine: Reserving timer0 instance for bluetooth if compiled in. Leaving timer1 and timer2 for application. Note that music module soft-pwm will also occupy timer1 if enabled.
    nrf5/modules/machine: Updating timer module to use new hal. Adding new parameters to the init to set period, mode and callback.
    nrf5/hal/timer: Implementing hal_timer to 1us prescaler. Multiplier inside to get to millisecond resolution. Callback must be registered before starting a timer.
    nrf5: Makefile cleanup. Removing duplicate include and unused netutils.c used by BLE 6lowpan network which has been removed for now.
    nrf5/modules/machine: Indention fix in uart module.
    nrf5/modules/machine: Removing unused code from uart module.
    nrf5/hal/rtc: Updating hal driver to calculate prescaler a bit more verbose. Using 1 second interval ticks.
    nrf5/modules/machine: Fixing type in RTC.
    nrf5/modules/machine: Update rtc init to set default IRQ priority before initializing RTC instance.
    nrf5/hal/rtc: Aligning RTC (real-time counter) HAL driver with Timer HAL driver. To make api's symetric. Also updating modules/rtc to get aligned with new HAL api.
    nrf5/drivers/bluetooth: Moving stop condition initialization before call to bluetooth stack write function is done, to make sure that its not overwritten after reception of the write event in case of with_response writes.
    nrf5/drivers/bluetooth: Removing duplicate static variable declaration.
    nrf5/modules/ubluepy: Updating characteristic write method to take in an additional keyword, 'with_response'. Default value is False. Only activated in central role.
    nrf5/drivers/bluetooth: Updating ble_drv_attr_c_write with possibility to do client write with response. Blocking call.
    nrf5/examples: Adding some notes on which pin layout that has been used in the seeed_tft.py ILI9341 driver for driving the display.
    nrf5/examples: Shorten name on seeedstudio_tft_shield_v2.py to seeed_tft.py.
    nrf5/examples: Updating ili9341 example to use new Frambuffer object instead of legacy Framebuffer1.
    nrf5/examples: Removing seeed.py which used a lcd mono framebuffer has been removed.

Matt Trentini <matt.trentini@gmail.com>
    Adding a README for the nRF5 port

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Updating documentation in SDCard module example. Correcting typo and adding SD card wireing documentation for direct SPI connection.
    nrf5/modules/pin: Adding on() and off() methods to Pin object to be forward compatible with upstream master. Legacy high() and low() methods are kept.
    nrf5/modules/spi: Remove pyb abstraction from SPI module, as there was a bug in transfer of bytes due to casting errors. The update removes the pyb_spi_obj_t wrapper going directly on the machine_hard_spi_obj_t as base for machine SPI objects. SDCard mounting is also tested.
    nrf5/drivers/bluetooth: Enable ubluepy central by default if running nrf52/s132 bluetooth stack. Maturity of the module is pretty OK now.
    nrf5/boards/feather52: Updating pins.csv for the feather52 board.
    nrf5/boards/feather52: Updating LED pull to low.
    nrf5/boards/feather52: Update SPI pinout.
    nrf5/main: Move initializaton of modmusic to the module itself. Upon init of the module, the hardware, pwm and ticker will be started. Could be moved back to main if pwm or ticker should be shared among more modules and have to be initialized more global.
    nrf5/modules/machine/timer: If timer is used in combination with SOFT_PWM (implicitly use of ticker.c) guard the Timer1 instance from being instantiated trough python timer module. Also disable implementation of the HAL IRQ handler which is for now explicitly implemented in ticker.c for Timer1.
    nrf5/modules/music: Update ticker and modmusic to share global ticks counter as a volatile variable. Use Timer1 hardware peripheral instead of instance 0. Timer0 is not free if used in combination with a bluetooth stack. Update IRQ priority to levels that are compatible in use with a bluetooth stack for both nrf51 and nrf52. Apply nrf51 PAN fixes for Timer1 instead of original Timer0.
    nrf5/drivers/bluetooth: Updating bluetooth driver to initialize nrf_nvic_state_t struct during declaration of the global variable instead of explicit memset.
    nrf5/hal/irq: Adding wrappers for handling nvic calls when Bluetooth LE stack is enabled.
    nrf5/modules/machine: Updating IRQ levels in SPI with IRQ priorities compatible with Bluetooth stacks.
    nrf5/device: Remove old startup files in asm, which has now been replaced with c-implementation.
    nrf5: Update Makefile to add c-implementation of startup scripts instead of the .s files.
    nrf5/device: Adding startup files in .c to replace current asm versions.
    nrf5/examples: Tuning Bluetooth LE example controller python script after testing out the example live. Motor speed of 100 was not enought to lift the airplane. Also turning was hard without setting higher angle values. The new values are just guessed values. However, the flying experience was good.
    nrf5/hal/irq: Adding include of nrf_nvic.h if s132 bluetooth stack is used to resolve IRQ function wrappers on newer bluetooth stacks.
    nrf5/drivers/ticker: Removing unused code.
    nrf5/examples: Adding music example. Only working if bluetooth stack is not enabled.
    nrf5/boards/microbit: Disable music and softPWM as there are some issues with the ticker.
    nrf5: Adding -fstack-usage flag to gcc CFLAGS to be able to trace stack usage on modules.
    nrf5/drivers/ticker: Removing LowPriority callback from nrf51 as there is only one SoftwareIRQ free if bluetooth stack is enabled. Also setting new IRQ priority on SlowTicker to 3 instead of 2, to interleave with bluetooth stack if needed. Updating all NVIC calls to use hal_irq.h defined static inlines instead of direct access.
    nrf5/hal/irq: Adding IRQ wrappers if Bluetooth Stack is present.
    nrf5: Facilitate option to configure away the modble if needed. Enabled if MICROPY_PY_BLE config is enabled in bluetooth_conf.h.
    nrf5/boards/microbit: Enable music module by default. However, timer and rtc module has to be disabled. Bluetooth support broken. Optimization needed.
    nrf5/modules/machine: Quickfix. Update timer object to not allow instanciation of Timer(0) if SOFT_PWM is enabled by board.
    nrf5/hal/timer: Quickfix. Disable IRQ handler if SOFT_PWM is configured to be enabled. Ticker driver has in current driver a seperate IRQ handler for this timer instance.
    nrf5/drivers/ticker: Add compile config guard in ticker.c to only include the driver if SOFT_PWM is configured in by board.
    nrf5/drivers/softpwm: Renaming pwm_init to softpwm_init to not collide on symbol name with pwm_init in nrf52 machine PWM object.
    nrf5: Add modmusic QSTR definition of notes to qstrdefsport.h.
    nrf5: Update Makefile to include ticker.c and renamed softpwm. Updating also include paths to include modules/music and drivers/.
    nrf5: Adding include of modmusic.h in main.c.
    nrf5: Call microbit_music_init0() if enabled in main.c.
    nrf5/modules/music: Expose public init function for music module.
    nrf5/modules/music: Update modmusic to use updated includes. Add extern ticks. Add function which implements initialization of pwm and ticker, register ticker callback, and start the pwm and ticker. This corresponds to microbit port main.cpp init.
    nrf5/drivers/softpwm: Enable use of ticker in softpwm driver.
    nrf5/drivers/ticker: Adding ticker.c/.h from microbit port.
    nrf5/drivers/pwm: Renaming pwm.c/.h to softpwm.c/.h
    nrf5/drivers/pwm: Expose pwm_init() as public function.
    nrf5/modules/ubluepy: Making peripheral conn_handle volatile. Upon connection event, the variable is accessed in thread mode. However, the main-loop is blocking on conn_handle != 0xFFFF. If this is not volatile, optimized code will not exit the loop.
    nrf5/drivers/bluetooth: As callback functions are in most usecases are set to NULL upon last event to get public API function out of blocking mode, these function pointers has to be set as volatile, as they are updated to NULL in interrupt context, but read in blocking main-thread.
    nrf5/examples: Fixing overlapping function names and variable names inside the object. Also removing some print statements. Tuning max angle from -7/7 to -25/25.

Glenn Ruben Bakke <glennbakke@gmail.com>
    Powerup (#26)

    * nrf5/examples: Adding python example template for PowerUp 3.0 Bluetooth LE controlled Paper Airplane.
    * nrf5: Enable bluetooth le central while developing powerup 3.0 example.
    * nrf5/examples: Backing up powerup 3.0 progress.
    * nrf5/examples: Adding working example on how to control PowerUp 3.0 paper airplane using bluetooth le.
    * nrf5/bluetooth: Disable central role.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules/ubluepy: Correcting alignment of enum values in modubluepy.h.
    nrf5/drivers/bluetooth: Add implementation of client attribute write without response.
    nrf5/modules/ubluepy: Pass on buffer to write in characteristic write central mode.
    nrf5/modules/ubluepy: Updating characteristic object write function to be role aware. Either peripheral or central (gatts or gattc). Adding dummy call to attr_c_write if central is compiled in. Still in progress to be implemented.
    nrf5/drivers/bluetooth: Adding template function for attr_c_write.
    nrf5/drivers/bluetooth: Renaming attr_write and attr_notify to attr_s_write and attr_s_notify to prepare for introduction of attribute write for gatt client.
    nrf5/modules/ubluepy: Fixing type in ubluepy_peripheral.c.
    nrf5/modules/ubluepy: Setting peripheral role upon advertise() or connect().
    nrf5/drivers/bluetooth: Adding role member to peripheral object to indicate whether Peripheral object is Peripheral or Central role.
    nrf5/modules/ubluepy: Continue characteristic discovery until nothing more is found during connect proceedure.
    nrf5/drivers/bluetooth: Refactoring code to group statics for s130 and s132 into the same ifdef. Also adding two empty lines in discovery functions to make it more easy to read.
    nrf5/drivers/bluetooth: Updating characteristic discovery to signal whether anything was found or not.
    nrf5/modules/ubluepy: Continue primary service discovery until nothing more is found in connect proceedure.
    nrf5/drivers/bluetooth: Updating primary service discovery api to take in start handle from where to start the service discovery. Also adjusting return parameter to signal whether anything was found or not.
    nrf5/modules/ubluepy: Remove duplication GAP event handler registration in peripheral.connect().

Glenn Ruben Bakke <glennbakke@gmail.com>
    Support address types (#18)

    * nrf5/modules/ubluepy: Adding new enumeration of address types.
    * nrf5/modules/ubluepy: Adding constants that can be used from micropython for public and random static address types.
    * nrf5/modules/ubluepy: Adding support for optionally setting address type in Peripheral.connect(). Public address is used as default. Address types can be retrieved from 'constants'. Either constants.ADDR_TYPE_PUBLIC or constants.ADDR_TYPE_RANDOM_STATIC.
    * nrf5/modules/ubluepy: Register central GAP event handler before issuing connect to a peripheral. Has to be done before connect() function as a connected event will be propergated upon successfull connection. The handler will set the connection handle which gets connect function out of the busy loop waiting for connection to succeed.
    * nrf5/modules/ubluepy: Removing duplicate setting of GAP event handler in connect().

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules/ubluepy: Register central GAP event handler before issuing connect to a peripheral. Has to be done before connect() function as a connected event will be propergated upon successfull connection. The handler will set the connection handle which gets connect function out of the busy loop waiting for connection to succeed.
    nrf5/modules/ubluepy: Fixing compilation bug of wrong variable name when registering gattc event handler in ublupy peripheral connect function (central mode).
    nrf5/bluetooth: Updating makefiles with updated paths to bluetooth le components after moving files.
    nrf5/bluetooth: Moving stack download script to drivers/bluetooth folder.
    nrf5/bluetooth: Move bluetooth driver files to drivers/bluetooth. Move bluetooth stack download script to root folder.
    nrf5/bluetooth: Guarding implementation against being linked in by surrounding it with BLUETOOTH_SD flag. Flag is only set if SD=<sdname> parameter is provided during make.
    nrf5/bluetooth: Moving makefile include folder and source files of bluetooth driver, ble uart and ble module to main Makefile.
    nrf5/bluetooth: Moving help_sd.h and modble.c to modules/ble.
    nrf5/modules/machine: bugfix after changing to MP_ROM_PTR in machine module local dict.
    nrf5: Syncing code with upstream master and converting all module and method tables to use MP_ROM macros. Also adding explicit casting of local dicts to (mp_obj_dict_t*).
    nrf5/modules/timer: Fixing bug in timer_find(). Function allowed to locate index out of range and started to look up in config pointer (index == size of array).
    nrf5/modules/timer: Remove test which is covered by timer_find() function in the line below.
    nrf5/modules/timer: Adding locals dict table and adding start/stop template functions. Also adding constants for oneshot and periodic to locals dict.
    nrf5/modules/timer: Adding timer module to modmachine.
    nrf5/boards: Adding micro:bit default music pin definition. Also adding config flag for enabling pwm machine module.
    nrf5/hal/timer: Adding start/stop template functions to hal_timer.h/.c
    nrf5/Makefile: Adding drivers/pwm.c and modules/music files to the source file list.
    nrf5/modules/music: Adding config guard in musictunes.c and adding import of mphal.h.
    nrf5/modules/music: Including mphal.h before config guard in modmusic.c. Also changed name on config guard to MICROPY_PY_MUSIC. Missing PWM functions during linkage will show up if PWM module has not not configured.
    nrf5/drivers/pwm: Including mphal.h before config guard in pwm.c.
    nrf5: Updating mpconfigport.h to include music module as builtin. Adding new configuration for enabling music module. Activating MODULE_BUILTIN_INIT in order to run music module init function on import.
    nrf5/modules/music: Backing up progress in music module.
    nrf5/drivers/pwm: Updating soft PWM driver to only be included if SOFT_PWM config is set.
    nrf5/hal/gpio: Add function to clear output register using a pin mask.
    nrf5: Adding new configuration called MICROPY_PY_MACHINE_SOFT_PWM to mpconfigport.h. This config will enable software defined PWM using timer instead of using dedicated PWM hardware. Aimed to be used in nrf51 targets.
    nrf5/boards: Removing PWM config set to 0 from pca10001 board. Config will later be re-introduced as SOFT_PWM variant.
    nrf5/pwm: Updating config name of PWM to hardware PWM to prepare for introduction of soft variant.
    nrf5/modules/music: Backing up progress in modmusic.
    nrf5/modules/music: backing up porting progress in modmusic.c.
    nrf5/modules/music: Commenting out backend function calls in modmusic.c to make module compile for now.
    nrf5/modules/music: Updating music module to use pin_obj_t instad of microbit_pin_obj_t. Update include to drivers/pwm.h to resolve some undefined functions.
    nrf5/modules/music: Removing c++ extern definition. Updating include list in modmusic.c. Removing module name from module struct.
    nrf5/modules/music: Removing include of modmicrobit.h in musictunes.c.
    nrf5/modules/music: Adding header to expose extern structs defined in musictunes.c
    nrf5/drivers: Adding copy of microbit soft pwm.
    nrf5/modules/music: Renaming microbitmusic files to modmusic/music.
    nrf5/modules/music: Renaming microbit module to music.
    nrf5/modules/microbit: Copying microbit music module to the port.
    nrf5/modules/timer: Adding timer3 and timer4 to timer object in case of nrf52 target.
    nrf5/modules/timer: Optimizing timer object structure and updating the module to use new hal_timer_init structures and parameters.
    nrf5/hal/timer: Adding empty IRQ handlers for all timers.
    nrf5/hal/timer: Changing hardcoded hal timer instance base to a lookup, so that IRQ num can be detected automatically without the need of using struct param on it. Size of binary does not increase when using Os.
    nrf5: Updating example in main.c on how to execute string before REPL is set up, to allow for boards with two leds. Todo for later is to update this code such that it will skip this LED toggle when there are no leds defined. Or use an example not depending on LEDs.
    nrf5/bluetooth: Updating Bluetooth LE stack download script to allow to be invoked from any parent folder. No need to change directory to bluetooth/ in order to get the correct download target folder position. Using the script location to determine the target folder.
    nrf5/boards: Adding board target for feather52 using s132 v.2.0.1 application offset even if the device is not using softdevice. To be worked on later.
    nrf5/boards: decrease size of ISR region from 4k to 1k in custom feather52 linker script to get some more flash space.
    nrf5/boards: Updating feather52 mpconfigboard.h to use correct uart pins, flow control disabled. Also adjusting leds down to two leds.
    nrf5/boards: Updating path to custom linker script for feather52 board.
    nrf5/boards: Renaming bluefruit_nrf52_feather to feather52 to shorten down the name quite drastically.
    nrf5/boards: Updating path to custom bluefruit feather linker script after renaming board folder.
    nrf5/boards: Renaming bluefruit_feather to bluefruit_nrf52_feather as it also exist a m0 variant of the board name.
    nrf5/boards: Updating mpconfigboard.h for bluefruit nrf52 feather with correct board, mcu and platform name.
    nrf5/boards: Updating adafruit bluefruit nrf52 feather linker script to use 0x1c000 application offset.
    nrf5/boards: Renaming custom linker script for bluefruit feather to reflect that the purpose of the custom linker script is DFU. The script is diverging from the generic s132 v2 linker script in the offset of the application.
    nrf5/boards: Adding custom linker script for adafruit nrf52 bluefruit feather to be able to detect application upper boundry in flash. Pointing s132 mk file to use this new custom linker script instead of the generic s132 v2 linker script.
    nrf5/boards: Adding linker script for nrf52832 s132 v.2.0.1.
    nrf5/boards: Adding template board makefiles and configs for bluefruit nrf52 feather. Copied from pca10040 target board. Linker script reference updated to use s132 v2.0.1. Non-BLE enable build disabled for now. Board configuration for leds, uart etc has not been updated yet from pca10040 layout.
    nrf5/bluetooth: Correcting typo in test where s132 API version is settled.
    nrf5/bluetooth: Updating bluetooth le driver to compile with s132 v.2.0.1 stack.
    nrf5/bluetooth: Add new compiler flag to signal API variants of the s132 bluetooth le stack. The version is derived from the major number of the stack name.
    nrf5/bluetooth: Remove hardcoded softdevice version as this now comes as parameter from board makefile.
    nrf5/boards: Updating makefiles using bluetooth stack to use updated linker script file names.
    nrf5/boards: Renaming bluetooth stack linker scripts to reflect version of the stack.
    nrf5/boards: adding some spaces in s132 makefile for pca10040.
    nrf5/boards: Renaming linker script for nrf52832 using bluetooth stack such that it also holds the version number of the stack. Updating linkerscript using the target linker script.
    nrf5/bluetooth: Add support for downloading s132_2.0.1 bluetooth stack.
    nrf5/bluetooth: Switch over to downloaded bluetooth stacks from nordicsemi.com instead of getting them through the SDK's. This will facilitate download of s132 v2.0.0 later.
    nrf5/bluetooth: Fixing bug found when testing microbit. Newly introduced advertisment data pointer was not cleared on nrf51 targets. Explicit set to NULL as no additional advertisment data is set. Raises a question on why the nrf51 static variable was not zero initialized. To be checked up.
    nrf5: Removing SDK_ROOT parameter to Makefile. Bluetooth stacks should be downloaded using the download_ble_stack.sh. The script should be run inside the bluetooth folder to work properly.
    nrf5/bluetooth: Adding back SOFTDEV_HEX as flash tools in main Makefile uses this to locate hex file.
    nrf5/bluetooth: Including bluetooth stack version in folder name after download to be able to detect if stack has been updated.
    nrf5/bluetooth: Updating Bluetooth LE stack download script.
    nrf5/bluetooth: Adding bash script to automate download of bluetooth le stacks
    nrf5/examples: Adding example to show how to use current PWM module to control servo motors.
    nrf5/modules/machine: Updating PWM module with two new kwargs parameters. One for setting pulse with more fine grained. This value should not exceed the period value. Also, adding support for setting PWM mode, whether it is LOW duty cycle or HIGH duty cycle. By default, high to low is set (this could be changed).
    nrf5/hal/pwm: Updating PWM implementation to support manually set duty cycle period. Pulse width has precidence over duty cycle percentage. Also adding support for the two configurable modes, high to low, and low to high, duty cycles.
    nrf5/hal/pwm: Adding more configuration options to the PWM peripheral wrapper. Possibility to set pulse with manually, and also mode. The mode indicates whether duty cycle is low and then goes high, or if it is high and then go low. Added new type to describe the two modes.
    nrf5: Adding hal_gpio.c to Makefile's source list.
    nrf5/modules/machine: Updating Pin module to register a IRQ callback upon GPIO polarity change events.
    nrf5/hal/gpio: Adding initial gpiote implementation to handle IRQ on polarity change on a gpio.
    nrf5: Moving initialization of pin til after uart has been initialized for debugging purposes. This will make it possible to use uart to print out debug data when adding gpio irq handlers.
    nrf5/hal/gpio: Adding some new structures and functions to register irq channels to gpio's using GPIOTE peripheral
    nrf5/hal/gpio: Adding missing include.
    nrf5/modules/machine: Style fix in pin object, indention.
    nrf5/modules/machine: Adding placeholder for irq method to pin object class.
    nrf5/modules/machine: Adding pin irq type and basic functions and structures.
    nrf5/hal/gpio: Reintroducing gpio polarity toggle event to be able to reference the short form of adding high_to_low and low_to_high together.
    nrf5/hal/gpio: Updating hal_gpio.h with some tab-fixes in order to make the file a bit consistent in style.
    nrf5/hal/gpio: Removing toggle event from the enumeration as that will be a combination of the rising and falling together.
    nrf5/modules/machine: Removing toggle event trigger as that will be a combination of the rising and falling together.
    nrf5/modules/machine: Adding new constants to pin object for polarity change triggers using the enumerated values in hal_gpio.h.
    nrf5/hal/gpio: Adding new enumeration for input polarity change events.
    nrf5/hal: Moving hal_gpio functions, types and defines from mphalport.h to a new hal_gpio.h.
    Revert "lib/netutils: Adding some basic parsing and formating of ipv6 address strings. Only working with full length ipv6 strings. Short forms not supported at the moment (for example FE80::1, needs to be expressed as FE80:0000:0000:0000:0000:0000:0000:0001)."
    nrf5: Removing leftover reference to deleted display module.
    nrf5/usocket: Removing network modules related to Bluetooth 6lowpan implementation as it depends on SDK libraries for now. Will be moved to seperate working branch.
    nrf5: Removing custom display, framebuffer and graphics module to make branch contain core components instead of playground modules.
    nrf5/modules/usocket: Updating import of netutils.h after upmerge with upstream master.
    nrf5/bluetooth: Add some comment on the destination of the eddystone short-url.
    nrf5/bluetooth: Updating Eddystone URL to point to https://goo.gl/x46FES which hosts the MicroPython WebBluetooth application which will be able to connect to the Bluetooth LE UART service of the device and create the REPL.
    nrf5/bluetooth: Adding webbluetooth REPL template. Alternating advertisment of eddystone URL and UART BLE service every 500 ms. Adding new config parameter to bluetooth_conf.h to enable webbluetooth repl. Has to be configured in combination with BLE_NUS. Eddystone URL not pointing to a valid WebBluetooth application at the moment, but rather to micropython.org as a placeholder for now.
    nrf5/modules/ubluepy: Adding method Peripheral object to stop any ongoing advertisment. Adding compile guard to only include advertise and advertise_stop if peripheral role is compiled in.
    nrf5/bluetooth: Adding function to stop advertisment if onging
    nrf5/modules/ubluepy: Adding support for starting advertisment from BLE UART REPL, by delaying registration of gatt/gatts and gattc handlers until needed in advertise or connect. If non connectable advertisment is selected, handlers in peripheral new is not anymore overriding the other peripheral instances which has set the callbacks.
    nrf5/bluetooth: Adding possibility to configure whether advertisment should be connectable or not.
    nrf5/bluetooth: Removing legacy advertise function in the bluetooth driver, which only did a hardcoded eddystone beacone advertisment.
    nrf5/help: Updating ble module help description to also include the address method.
    nrf5/bluetooth: Renaming the ble module method address_print() to address(), as it will now return a string of the resolved local address. Updating the function to create a string out the local address and return this.
    nrf5/bluetooth: Update ble_drv_address_get to new api which pass in a address struct to fill by reference. Updating implementation to copy the address data. Also ensuring that the bluetooth stack has been enabled before fetching the address from the bluetooth stack.
    nrf5/bluetooth: Adding new structure which can hold local address. Updating api prototype for ble_drv_address_get with a address structure by reference.
    nrf5/bluetooth: Updating help text for ble module to also list up enabled() function which queries the bluetooth stack on whether it is enabled or not.
    nrf5/bluetooth: Removing advertise from ble module. Removing help text as well.
    nrf5/examples: Adding python eddystone example using ubluepy api.
    nrf5/modules/ubluepy: Open up Peripheral advertise method to pass custom data to the bluetooth driver. Allowing method to allow kwargs only if no args is set. To support setting data kwarg only.
    nrf5/modules/ubluepy: Adding new members to the ublupy advertisment parameters, to hold custom data payload if set.
    nrf5/bluetooth: Cleaning up stack enable function, to not set device name twice. Also, adding support for setting custom advertisment data.
    nrf5/modules/ubluepy: Adding compile guard for UBLUEPY_CENTRAL around the char_read() call to ble_drv_attr_c_read().
    nrf5/bluetooth: Moving central code inside central bluetooth stack defines to make peripheral only code compile again.
    nrf5/examples: Updating ubluepy scan example to use constant value from ubluepy instead of hardcoded value.
    nrf5/examples: Adding example on how to use the ubluepy Scanner object in order to scan for a device name and find the address of the device. This can subsequently be used to perform a Central role connect() using the Peripheral object.
    nrf5/modules/ubluepy: Turn all attributes (addr, addr_type and rssi) to method calls instead of using common .attr callback. Adding getScanData implementation, which parses the advertisment data and returns a list of tuples containing (ad_type, desc, value). Description is generated by peeking into the ad_types local dicts map table, and do a reverse lookup on the value to find the QSTR.
    nrf5/modules/ubluepy: Adding ad_types constants in new object. Linking in ad_types object into the ubluepy.constants local dict.
    nrf5/modules/ubluepy: Expose ubluepy constant objects as externs in modubluepy.h to be able to get access to the local dict tables in order to do a reverse lookup on value to resolve QSTR from external modules in c.
    nrf5/modules/ubluepy: Upon advertisment event, also store the advertisment data.
    nrf5/modules/ubluepy: Adding callback function to handle read response if gatt client has issued a read request. Also adding method for returning the uuid instance from the object.
    nrf5/modules/ubluepy: Adding value data member to the characteristic object. This can hold the value data when gatt client perform a read and value has to be transferred between interrupt and main thread.
    nrf5/bluetooth: Updating bluetooth driver to support GATT client read of a characteristic value. Data passed to caller in interrupt context, and copy has to be performed. The function call is itself blocking.
    nrf5/modules/ubluepy: Adding uuid() function to service object to return UUID instance of the service.
    nrf5/modules/ubluepy: Adding binVal() function to the ubluepy UUID object. For now returning the uint16_t value of the UUID as a small integer.
    nrf5/modules/ubluepy: Adding dummy function call to ble_drv_attr_c_read.
    nrf5/bluetooth: Adding new api for reading attribute as gatt client. Renaming old ble_drv_attr_read function to ble_drv_attr_s_read to indicate the server role.
    nrf5/bluetooth: Adding event handling cases for gatt client read, write and hvx events.
    nrf5/modules/ubluepy: Tab-fix
    nrf5/modules/ubluepy: Updating peripheral object to handle characteristic discovery (central mode).
    nrf5/modules/ubluepy: Adding start and end handle to service object.
    nrf5/bluetooth: Adding support for central characteristic service discovery. Updating primary service discovery to block until all services has been created in the peripheral object before returning from the bluetooth driver. This pattern is also applied to the characteristic discovery.
    nrf5/modules/ubluepy: Updating ubluepy peripheral object to new bluetooth driver API. Starting to populate service objects and uuid objects. Also adding the service to the peripheral object throught the regular static function for adding services. Handle value for the primary service is assuming that it is the first element in the handle range; start_handle reported by the service discovery.
    nrf5/bluetooth: Updating bluetooth driver to do service discovery, doing callbacks to ubluepy upon each individual primary service discovered. Using intermediate structure defined by the driver, to abstract bluetooth stack specific data in ubluepy.
    nrf5/modules/ubluepy: Adding some work in progress on service discovery.
    nrf5/bluetooth: Adding implementation to the discover service function. Adding handler for gatt client primary service discovery response events, and passing this to the ubluepy upon reception.
    nrf5/bluetooth: Adding function parameters and return type to service and characteristic discovery template functions.
    nrf5/bluetooth: Adding template functions for service discovery in bluetooth driver.
    nrf5/bluetooth: Adding function to register gattc event handler (central).
    nrf5/bluetooth: Adding intermediate gattc callback function type in bluetooth driver.
    nrf5/bluetooth: Turning off debug logging in bluetooth driver, which does not work well with bluetooth REPL mode.
    nrf5/bluetooth: Fixing some smaller tab errors in the bluetooth driver.
    nrf5/bluetooth: Updating bluetooth le driver to handle GAP conn param update request. Also updating minor syntax in previous switch case.
    nrf5/boards: Inrease heap size in the nrf52832 w/s132 bluetooth stack linker script.
    nrf5/modules/ubluepy: Update connect method to parse dev_addr parameter and pass it to the bluetooth driver, going through a allocated heap buffer. Adding call to the bluetooth driver to issue a connect. Hardcoding address type for now.
    nrf5/bluetooth: Updating connect function in the bluetooth driver to do a successful connect to a peripheral device.
    nrf5/modules/ubluepy: Adding template function for central connect() in peripheral object.
    nrf5/modules/ubluepy: Adding locals dict to Scan Entry introducing function to retreive Scan Data. Not working as expected together with .attr. It looks like locals dict functions are treated to be attributes and cannot be resolved.
    nrf5/bluetooth: Adding function for connecting to a device (in central role). Not yet tested.
    nrf5/modules/ubluepy: Return BLE peer address as string instead of bytearray. Updated struct in modubluepy.h to use a mp_obj_t to hold a string instead of a fixed 6-byte array. Stripped down ScanEntry print out to only contain class name, peer address available through addr attribute.
    nrf5/bluetooth: capture address type in addition to advertisment type in bluetooth advertisment reports.
    nrf5/modules/ubluepy: Correcting rssi member in scan_entry object to be int instead of uint.
    nrf5/modules/ubluepy: Adding attribute to ScanEntry object for getting address (returning bytearray), type (returning int) and rssi (returning int).
    nrf5/modules/ubluepy: Copy address type and rssi to the ScanEntry object upon reception of an advertisment report callback.
    nrf5/bluetooth: Adding address type to bluetooth stack driver advertisment structure, and fill the member when advertisment report is received.
    nrf5/modules/ubluepy: Swapping address bytes when copying bluetooth address over to ScanEntry object during advertisment scan report event.
    nrf5/modules/ubluepy: Extending print of ScanEntry object to also include the bluetooth le address.
    nrf5/modules/ubluepy: Create new adv report list for each individual scan. Create a new ScanEntry object instance on each advertisment event recieved and append this to the current adv_report list.
    nrf5/modules/ubluepy: Adding print function to scan_entry object.
    nrf5/modules/ubluepy: Populating ubluepy_scan_entry_obj_t with members that are interesting to keep for the ScanEntry object.
    nrf5/bluetooth: Moving callback definitions to bluetooth driver header. Refactoring bluetooth driver, setting new names on callback functions and updating api to use new callback function name prefix.
    nrf5/modules/ubluepy: Extracting advertisment reports and adding some data to list before returning it in scan() method.
    nrf5/bluetooth: Adding handling of advertisment reports in bluetooth driver and issue callback to ubluepy. A bit ugly implmentation and has to be re-worked.
    nrf5/bluetooth: adding adv report data structure to pass to ubluepy upon adv report event. Adding new api for setting callack where to handle advertisment events in ubluepy.
    nrf5/modules/ubluepy: Adding adv_reports member to scanner object, to hold the result of scan.
    nrf5/modules/machine: Cleaning up uart a bit more. Removing unused any() method, and aligning print and local dict names to use machine_uart prefix.
    nrf5/bluetooth: Turn off bluetooth printf logging.
    nrf5: Add back ublupy scanner and scan entry source files in Makefile.
    nrf5/bluetooth: Enable implementation in scan start function in the bluetooth stack driver.
    nrf5/boards: Adjust heap end after increased .data usage in nrf52832 s132 linker script.
    nrf5/bluetooth: Adding more implementation in scan start function. However, commented out for time beeing, as there is some memory issues when activating central.
    nrf5: Removing ubluepy scanner and scan entry from Makefile source list until nrf52 central issues has been resolved.
    nrf5/bluetooth: Correcting indention.
    nrf5/bluetooth: Adding some implementation to scan_start function.
    nrf5/modules/ubluepy: Adding scan method to the Scanner object. Adding locals dict table.
    nrf5/bluetooth: Adding empty scan_start and scan_stop function to the bluetooth driver.
    nrf5/modules/ubluepy: Adding constructor function to scanner object.
    nrf5/modules/ubluepy: Adding print function to Scanner object.
    nrf5/modules/ubluepy: Disable all functions central related functions in the Peripheral object for now, even if MICROPY_PY_UBLUEPY_CENTRAL is enabled.
    nrf5/modules/ubluepy: Activate Scanner and ScanEntry objects if MICROPY_PY_UBLUPY_CENTRAL is set.
    nrf5/bluetooth: Adding new configuration flag for s132 bluetooth stack, to enable/disable ubluepy central. Disabled by default.
    nrf5: Adding ubluepy_scanner.c and ubluepy_scan_entry.c to Makefile source list.
    nrf5/modules/ubluepy: Adding template object typedefs for scanner and scan entry, and extern definition for scanner and scan_entry object type in modubluepy.h
    nrf5/modules/ubluepy: Adding templates for central role Scanner and ScanEntry objects.
    nrf5/uart: Moving UART from pyb to machine module.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/uart: Refactoring UART module and HAL driver

    Facilitating for adding second HW uart. Moving pyb_uart into
    machine_uart. Adding return error codes from hal_uart functions,
    if the hardware detects an error.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules: Updating uart object to allow baudrate configuration.
    nrf5/bluetooth: Moving bluetooth_conf.h to port root folder to make it more exposed.
    nrf5/boards: Remove define of machine PWM module configuration in nrf51 targets, as the device does not have a HW PWM peripheral.
    nrf5: Disable machine PWM module by default if board does not define it.
    nrf5/boards: Disable all display modules in pca10028 board config.
    nrf5: Updated after merge with master. Updating nlr_jump_fail to call __fatal_error in order to provide a non-returning function call.
    nrf5/boards: Adding more heap memory to the nrf51 256k/32k s110 linker script. Leaving 2k for stack.
    nrf5/modules/machine: Adding __WFI() on machine.deepsleep()
    nrf5/modules/machine: Adding __WFE() on machine.sleep()
    nrf5/modules/machine: Adding enable_irq() and disable_irq() method to the machine module. No implementation yet for the case where bluetooth stack is used.
    nrf5/modules/rtc: Adding support for stopping and restarting rtc (if periodic) for all the instances of RTC.
    nrf5/modules: Updating RTC kwarg from type to mode to set ONESHOT or PERIODIC mode.
    nrf5/modules: Adding support for periodic RTC callback.
    nrf5/hal: hal_rtc update. Adding current counter value to period value before setting it in the compare register.
    nrf5/modules: Updating rtc module with non-const machine object list in order to allow setting callback function in constructor.
    nrf5/hal: Adding initialization of LFCLK if not already enabled in hal_rtc.
    nrf5/modules: Moving irq priority settings in RTC object to rtc_init0 when initializing the hardware instances. Also modifying comments a bit. Adding simple example in comment above make_new function on how the object is intended to work.
    nrf5: Updating main.c to initialize the rtc module if enabled.
    nrf5/modules: Added RTC into the machine module globals dict.
    nrf5/modules: Updating rtc module. Not working yet.  Updated to align with new hal_rtc interface. Added start and stop methods. Allowing callback function set from init. This should be moved to start function, not set in main.
    nrf5/hal: Updating hal RTC implementation.
    nrf5/hal: Adding hal_irq.h which defines a set of static inline functions to do nvic irq operations.
    nrf5/modules: Updating machine uart module to use new hal uart interface name.
    nrf5/hal: Renaming uart hal function to use hal_uart prefix.
    nrf5/modules: Updating readfrom function in machine i2c module to use the new hal function which has been implemented.
    nrf5/hal: Adding untested implementation of twi read. Lacking sensors to test with :)
    nrf5/boards: Renaming linker script for all nrf51 and nrf52 into more logical names. Updating all boards with new names.
    nrf5/bluetooth: Updating header guard in bluetooth_conf.h to reflect new filename.
    nrf5/bluetooth: Updating old references to 'sdk' to use the new folder name 'bluetooth' in makefiles.
    nrf5: Renaming sdk folder to bluetooth.
    nrf5: Merging sdk makefiles into bluetooth_common.mk. s1xx_iot is still left out of this refactoring.
    nrf5: Renaming nrf5_sdk_conf.h to bluetooth_conf.h
    nrf5: Starting process of renaming files in sdk folder to facilitate renaming of the folder and make it more logical. Transition will be from sdk to bluetooth.
    nrf5/boards: Adding support for SPI, I2C, ADC, and Temp in machine modules in micro:bit target. Also activating hal drivers for the peripherals.
    nrf5/sdk: Updating low frequency clock calibration from 4 seconds to 250 ms for stack enable when BLUETOOTH_LFCLK_RC is enabled.
    nrf5/boards: Updating nrf51822_aa_s110.ld to be more generic, leaving all RAM not used for stack, .bss and .data to the heap.
    nrf51: Removing stack section from startup file as it got added to the final hex file. Thanks dhylands for helping out.
    nrf5/boards: Adding BLUETOOTH_LFCLK_RC to CFLAGS in microbit s110 makefile.
    nrf5/sdk: Adding support for initializing the bluetooth stack using RC oscillator instead of crystal. If BLUETOOTH_LFCLK_RC is set in CFLAGS, this variant of softdevice enable will be activated.
    nrf5: Initialize repl_display_debugging_info in pyexec.c for cortex-m0 targets.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Updating ringbuffer.h to use volatile variables for start and end.
    nrf5/sdk: Rename cccd_enable variable to m_cccd_enable in bluetooth le UART driver. Also made the variable volatile.
    nrf5/modules: Updating example in ubluepy header to use handle instead of data length upon reception of an event.
    nrf5/modules: Updating ubluepy peripheral to pass handle value to python event handler instead of data length. Data length can be derived from the bytearray structure.
    nrf5/sdk: Updating bluetooth le driver to handle SEC PARAM REQUEST by replying that pairing is not supported. Moving initialization of adv and tx in progress state variables to stack enable function.
    nrf5/modules: Enable ubluepy constants for CONNECT and DISCONNECT for other bluetooth stacks than s132.
    nrf5/sdk: Fixing unaligned access issues for nrf51 (cortex-m0) in bluetooth le driver

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing SDK dependant BLE UART Service implementation

    The sdk_12.1.0 nrf52_ble.c implementation was dependent on SDK components.
    This has been replaced with the ble_uart.c implementation using a standalone
    bluetooth driver implementation without need of SDK components.

    Also, sdk.mk has been updated to not use a special linker script.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf52: Removing folder to not confuse which folder is in development

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing ble_repl_linux.py

    Script does not really work very well with blocking char read and
    async ble notifications printing data when terminal stdout is blocked
    by readchar. Bluetooth UART profile implemented in ble_uart.c is
    now working with tralamazza's nus_console nodejs script.

    Ref: https://github.com/tralamazza/nus_console

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Add default config for MICROPY_PY_BLE_NUS (0)

    Disable Bluetooth UART to be used for REPL by default. Can be overridden
    in nrf5_sdk_conf.h. It is defined in  mpconfigport.h as it is connected to
    mphalport.c, where the config is used to determine whether default print
    functions should be using HW UART or Bluetooth UART.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Add ble_uart.c to source list

    ble_uart.c implements UART Bluetooth service on top of the
    bluetooth stack driver api calls. Can be enabled to be compiled
    in by defining MICROPY_PY_BLE_NUS = 1 in nrf5_sdk_conf.h.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing include of sdk_12.1.0's build.mk

    As no sources are needed from the SDK this build makefile
    can be deleted.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Force implementation of tx_str_cooked function if BLE NUS enabled.

    If BLE UART service has been enabled, the mp_hal_stdout_tx_strn_cooked
    is not defined by default anymore, and has to be implemented by the
    UART driver (in this case BLE).

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Adding compiler guard around exchange MTU request event.

    As s110 is not having this event or function call to answer on a MTU
    exchange request, this is excluded for all other version than s132
    for now.

Bander Ajba <banderajba@macwan.local>
    minor documentation and extra tabs removal fixes

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Updating BLE UART implementation by swapping TX and RX uuid and characterisitic handling. Removed dummy write delay of 10 ms.
    nrf5/sdk: Backing up progress in bluetooth le driver. Adding new gap and gatts handlers. Added handling of tx complete events when using notification, responding to MTU request, and setting of default connection parameters.

Bander Ajba <banderajba@macwan.local>
    fixed temp module to allow for instance support
    did required modification to merge the temperature sensore module

Dave Hylands <dhylands@gmail.com>
    Fix up Makefile dependencies

    I also didn't see any real reason for mkrules.mk to exist,
    so I merged the contents into Makefile.

    Now you can do:
    ```
    make BOARD=pca10028 clean
    make BOARD=pca10028 flash
    ```
    and it will work properly.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Updating Makefile to use correct variable for setting directory of file to freeze as mpy.
    nrf5: Setting stack top in main.c. Thanks dhylands for pointing this out.
    nrf5/sdk: Backing up progress in BLE UART driver. Adding ringbuffer in order to poll bytes from recieved data in REPL main loop.
    nrf5/modules: Updating ubluepy example to print out gatts write events with data.
    nrf5/boards: Updating pca10028 bluetooth stack targets to have a MCU_SUB_VARIANT.

Bander Ajba <banderajba@macwan.local>
    added support for hardware temperature sensor

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Adding macro based ringbuffer written by Philip Thrasher. source: https://github.com/pthrasher/c-generic-ring-buffer/blob/master/ringbuffer.h. Copyright noticed copied into the file, and file reviewed by Philip.
    nrf5/sdk: Updating bluetooth le driver to extract data length and pointer from the event structure upon gatts write operation.
    nrf5/modules: Expose ubluepy characteristic and peripheral types as external declaration in ublupy header.
    nrf5: Updating main to initialize bluetooth le uart module right before bluetooth REPL is started.
    nrf5/sdk: Updating bluetooth le uart implemenatation to block until cccd is written.
    nrf5/sdk: Backing up ubluepy version of ble uart service for Bluetooth LE REPL.
    nrf5/modules: Updating ubluepy example in header to align with bluetooth uart service characteristic's.
    nrf5/modules: Implementing characteristic write method. Possible to use write for both write and notifications.
    nrf5/sdk: Remaning bluetooth driver function ble_drv_attr_notif to *_notify.
    nrf5/modules: Adding props and attrs parameter to ubluepy characteristic constructor to override default values. Adding method for reading characteristic properties. Adding values to the local dict table that gives possibility to OR together a configuration of properties and attributes in the keyword argument during construction.
    nrf5/sdk: Adding parsing of characteristic properties and attributes (extra descriptions for the characteristic, for now cccd).
    nrf5/modules: Adding new members to ubluepy characteristic object, props and attrs. Adding enum typedefs for various properties and attributes.
    nrf5/modules: Syncing uart module code after upmerge with upstream master.
    nrf5/boards: Releasing more RAM for heap use in the nrf51 s110 linker script.
    nrf5/modules: Adding new gatts handler and registration of it during creation of a peripheral object. Also, added forwarding to python callback function (for now the same as for GAP).
    nrf5/modules: Adding new callback type in modubluepy for gatts events.
    nrf5/sdk: Adding support for setting gatts handler in the bluetooth le driver.
    nrf5/modules: Adding constant for CCCD uuid in ubluepy constants dict.
    nrf5: Adding ubluepy_descriptor.c into source list to compile.
    nrf5/modules: Adding template for ubluepy descriptor class implementation.
    nrf5/modules: Adding object structure for ubluepy descriptor.
    nrf5/sdk: Adding template functions for attribute read/write/notify in bluetooth le driver.
    nrf5/modules: Adding getCharacteristic method in ublupy service class. This function returns the characteristic with the given UUID if found, else None. The UUID parameter has to be of UUID class type, any other value, like strings will throw an exception.
    nrf5/modules: Updating method documentation in ubluepy peripheral and service.
    nrf5/modules: Adding new method, getCharacteristics(), in the ubluepy service class. The method returns the list of characteristics which has been added to the service instance.
    nrf5/modules: Updating method documentation in ubluepy peripheral class.
    nrf5/modules: Updating ubluepy service. Creating empty characteristic list in constructor. Appending characteristic to the list when added.
    nrf5/modules: Changed return in ubluepy addService() function to return mp_const_none instead of boolean.
    nrf5/modules: Correcting tabbing in ubluepy periheral impl.
    nrf5/modules: Updating ubluepy peripheral. Creating empty service list in constructor. Appending services to the list when added. Added new function for retreiving the service list; getServices().
    nrf5/modules: Adding new members in ubluepy peripheral and service object to keep track of child elements. Peripheral will have a list of services, and service will have a list of charactaristics.
    nrf5/modules: Removing connection handle from python gap event handler callback function.
    nrf5/modules: Updating ubluepy example in the header file with new function call to add service to a peripheral instance.
    nrf5/modules: Updating peripheral class to assign periopheral parent pointer to service's thats added. Also added a hook in the bluetooth le event handler to store the connection handle value, to prevent any services or characteristics to handle this value themselves.
    nrf5/modules: Updating service object to clear pointer to parent peripheral instance. Also assinging pointer to the service when adding a new characteristic.
    nrf5/modules: Updating print to also include peripheral's connection handle. Setting pointer to service parent instance to NULL.
    nrf5/modules: Correcting event id numbers for connect and disconnect event in ubluepy_constants.py
    nrf5/modules: Shuffle order of typedef in ubluepy header. Adding service pointer in characteristic object. Adding peripheral pointer to the service structure. When populated, the characteristic would get access to conn_handle and service handle through pointers. Also service would get access to peripheral instance.
    nrf5/modules: adding template functions for characteristic read and write.
    nrf5/modules: Adding constants class to ubluepy which will contain easy access to common bluetooth le numbers and definitions for the bluetooth stack.
    nrf5/modules: Updating example in ubluepy header with 16-bit uuid's commented out, to show usage.
    nrf5/sdk: Adding support for adding 16-bit uuid's in advertisment packet. The services in paramter list can mix 16-bit and 128-bit.
    nrf5/sdk: Updating sdk_common.mk with new filename of bluetooth le driver.
    nrf5: Updating all includes of softdevice.h to ble_drv.h
    nrf5/sdk: renaming softdevice.* to ble_drv.*
    nrf5/sdk: Renaming bluetooth driver functions to have ble_drv* prefix. Updating modules using it.
    nrf5/sdk: Enable ubluepy module if s110 bluetooth stack is enabled.
    nrf5/sdk: Updating bluetooth driver to only set periph and central count if s132 bluetooth stack. These parameters does not exist in older stacks.
    nrf5/modules: Updating bluetooth driver and ubluepy to use explicit gap event handler. Adding connection handle parameter to the gap handler from ubluepy. Resetting advertisment flag if connection event is recieved, in order to allow for subsequent advertisment if disconnected again. Example in ublupy header updated.
    nrf5: Adding target to flash bluetooth stack when using pyocd-flashtool.
    nrf5/modules: Guarding callback to python event handler before issue the call in case it is not set.
    nrf5/modules: Updating ubluepy example to turn led2 on and off when receiving connected and disconnect bluetooth event.
    nrf5/sdk: Updating bluetooth driver to have configurable logs.
    nrf5/modules: updating ubluepy and bluetooth driver to support python created event handler. Added registration of callback from ubluepy against the bluetooth driver and dispatching of events to the user supplied python function.
    nrf5/modules: Splitting includes to be inside or outside of the compile guard in ubluepy. This way, all micropython specific includes will be outside, and internal will be inside. This way, there will not be any dependency towards ubluepy headers if not compiled in.
    nrf5/modules: Adding two new functions to ubluepy peripheral class to set specific handlers for notificaitons and connection related events.
    nrf5: Set ubluepy to disabled by default in mpconfigport.h if not configured.
    nrf5/modules: Moving includes inside config defines to make non-ubluepy targets compile again.
    nrf5/modules: Adding 'withDelegate' function to peripheral class.
    nrf5/modules: Adding ubluepy delegate type to modubluepy globals table.
    nrf5: Adding ubluepy_delegate.c to list of source files to compile.
    nrf5/modules: Adding new object struct for delegate class and adding a delegate struct member to Peripheral class to bookeep callback object when event occurs.
    nrf5/modules: Adding template for ubluepy delegate class.
    nrf5/sdk: Fixing debug print in bluetooth driver to not use >>> prefix. Adding one more print for connection parameter update.
    nrf5/sdk: Correcting advertisment packet in bluetooth driver in order to make the device connectable.
    nrf5/sdk: Implementing simple event handler for bluetooth stack driver.
    nrf5/sdk: Disable all sdk components from being included in the build while implementing ubluepy, overlap in IRQ handler symbol.
    nrf5/modules: Shortening down the device name to be advertised in the example to make it fit with a 128-bit complete UUID.
    nrf5/modules: Bugfix in ubluepy_uuid_make_new. Used wrong buffer to register vendor specific uuid to the bluetooth stack.
    nrf5/sdk: Updating advertisment function in bluetooth le driver to add 128-bit complete service UUID provided in service list to the advertisment packet.
    nrf5/sdk: Updating advertisment funciton in bluetooth le driver to iterate through services passed in and calculate individiual uuid sizes.
    nrf5/modules: Updating advertisment method in peripheral class to memset advertisment structure. Also applying service list if set to the advertisment structure.
    nrf5/modules: Updating ubluepy module header usage example. Correcting enum for UUID types to start index from 1. Expanding advertisment data structure to also include service list members.
    nrf5/sdk: Adding static boolean for keeping track of whether advertisment is in progress in the bluetooth driver. Now, advertisment can be restarted with new data any time.
    nrf5/modules: Updating ubluepy peripheral class to use mp_const_none instead of MP_OBJ_NULL for unset values in advertisment method parameter list. Adding extraction of the service list in the advertisment method. The list is not yet handled.
    nrf5/modules: Adding a few examples in the modubluepy.h to get easier copy paste when implementing.
    nrf5/sdk: Successful device name advertisment. Added flags to advertisment packet and enable device name byte copy into the advertisment data.
    nrf5/modules: Turning ubluepy peripheral advertisment function into a keyword argument function so that it would be possible to set device name, service uuids, or manually constructed data payload.
    nrf5/sdk: Updating softdevice driver with function to set advertisment data and start advertisment. Does not apply device name yet. Work in progress.
    nrf5/modules: Adding new structure to ubluepy in order to pass advertisment data information to the bluetooth le stack.
    nrf5/modules: Adding function function to add characteristics to the ubluepy service. Enable function in service's local dict table.
    nrf5/modules: Adding function in bluetooth le driver to add characteristic to the bluetooth le stack.
    nrf5/modules: Adding more members to ublue characteristic object structure.
    nrf5/modules: Adding characteristic class to ubluepy globals table.
    nrf5/modules: Updating ubluepy characteristic implementation.
    nrf5/modules: Re-arranging includes in ubluepy_service.c
    nrf5/modules: Adding ubluepy charactaristic type struct.
    nrf5/modules: Updating ubluepy with more implementation in UUID and Service. Adding function in bluetooth le driver which adds services to the bluetooth stack. Making service take UUID object and Service type (primary/secondary) as constructor parameter in Service class.
    nrf5: Adding ubluepy to include path.
    nrf5/modules: Updating ubluepy UUID class constructor with some naive parsing of 128-bit UUIDs, and pass this to the softdevice driver for registration.
    nrf5/sdk: Adding new function to the softdevice handler driver to add vendor specific uuids and return an index to the entry back by reference.
    nrf5/modules: Updating ubluepy UUID class with constructor that can construct an object based on hex value of 16-bit or string of 16-bit prefixed with '0x'.
    nrf5/modules: Adding Peripheral, Service and UUID class to the ubluepy module globals table.
    nrf5/modules: Extending the implementation of Peripheral class in ubluepy.
    nrf5/modules: Extending the implementation of UUID class in ubluepy.
    nrf5/sdk: Adding configuration to enable the ubluepy peripheral class when using softdevice 132 from the SDK.
    nrf5: Adding ubluepy module to builtins if bluetooth stack is selected. Disable NUS profile by default. Adding source for ubluepy module into makefile to be included in build. The source is only linked if MICROPY_PY_UBLUEPY is set.
    nrf5: Aligning code after upmerge with master. Mostly FAT FS related updates. Not tested after merge.
    nrf5/modules: Adding new and print function to ubluepy peripheral class. Template functions only.
    nrf5/modules: Adding ubluepy UUID class template.
    nrf5/modules: Adding ubluepy characteristic class template.
    nrf5/modules: Adding missing #endif. Also adding to property templates to the lolcal dict.
    nrf5/modules: Adding ubluepy service class template.
    nrf5/modules: Updating ubluepy with class function placeholders.
    nrf5/modules: Renaming ble module folder to ubluepy.
    nrf5/modules: Adding new template file for ubluepy Peripheral class.
    nrf5/pyb: Moving pyb module into modules/pyb.
    nrf5/utime: Moving utime module into modules/utime.
    nrf5/uos: Moving uos module into modules/uos.
    nrf5/network: Moving network module into modules/network. Adding include path to network as its needed by the usocket module.
    nrf5/usocket: Moving usocket module into modules/usocket.
    nrf5/led: Moving led module into modules/machine.
    nrf5/led: Moving led module into modules/machine.
    nrf5/pwm: Moving pwm module into modules/machine.
    nrf5/rtc: Moving rtc module into modules/machine.
    nrf5/timer: Moving timer module into modules/machine.
    nrf5/pin: Moving pin module into modules/machine.
    nrf5/adc: Moving adc module into modules/machine.
    nrf5/i2c: Moving i2c module into modules/machine.
    nrf5/spi: Moving spi module into modules/machine.
    nrf5/uart: Moving uart module into modules/machine to start converting it into machine module and not pyb.
    nrf5/machine: Moving modmachine into modules/machine folder. Updating Makefile.
    nrf5/drivers: Renaming folder to modules.
    nrf5: Renaming python modules folder to freeze to give the folder its right meaning. The scripts put into this folder will be frozen.
    nrf5/drivers: Adding template for ubluepy module.
    nrf5/sdk: Adding compilation config whether to include BLE NUS implementation. Config found in sdk/nrf5_sdk_conf.h. NUS enabled for s132 targets by default.
    nrf5: Fallback to HW UART when not Bluetooth LE UART has been enabled.
    nrf5: Updating main.c to use MICROPY_PY_BLE_NUS as switch for regular uart initialization or bluetooth le uart initialization.
    nrf5/sdk: Adding work-in-progress script to connect to bluetooth le REPL using bluepy python module in linux.
    nrf5/boards: Updating board makefiles for s132 and s1xx target for pca10040 (nrf52832) by adding sub variant and device define to the makefiles.
    nrf5/examples: Updating ssd1306.py example with a comment describing proceedure on how to use the I2C variant of the driver.
    nrf5/hal: Line wrapping params in hal_spi.c to make it easier to read.
    nrf5/hal: Updating hal_twi.c tx implementation to a working state. STARTTX only issued once, before looping bytes.
    nrf5/examples: Updating ssd1306.py driver to work with i2c master write implementation.
    nrf5/hal: Updating hal_twi.c with tx function. Gets multiple startup bytes for each clocked byte.
    nrf5/hal: Updating hal_twi.c with tx function which partly works. Bytes are clocked out a bit out of order.
    nrf5/hal: Started implementation of hal_twi.c (non-DMA). Init function started.
    nrf5: Removing hal_twie.c from being compiled in.
    nrf5: Renaming configuration define in board configs using i2c from MICROPY_PY_MACHINE_HW_I2C to MICROPY_PY_MACHINE_I2C as the config is overlapping with the latter.
    nrf5: Renaming configuration define in board configs using i2c from MICROPY_PY_MACHINE_HW_I2C to MICROPY_PY_MACHINE_I2C as the config is overlapping with the latter.
    nrf5: Making i2c configurable from board configuration in case board has to sacrifice the i2c machine module.
    nrf5/boards: Activating all display drivers in pca10056 board.
    nrf5/boards: Updating s110 SD linker script for micro:bit.
    nrf5/i2c: Making use of hal twi tx function in writeto function.
    nrf5/hal: Updating twi driver with template functions.
    nrf5/hal: Updating TWI DMA implementation. Suspend not working on tx. Rx not implemented yet.
    nrf5/hal: Updating twi master tx with stop parameter.
    nrf5/hal: Adding i2c master functions for tx and rx in hal header.
    nrf5/hal: Adding new macros functions to mphalport.h which are used by extmod i2c machine module.
    nrf5/i2c: Adopting use of extmod/machine_i2c module as base for port's machine i2c module.
    nrf5/i2c: Backing up before trying out extmod i2c integration.
    nrf5: Adding i2c class to machine module globals table.
    nrf5: Updating main.c to initialize the i2c machine module if selected.
    nrf5/i2c: Updating i2c machine module with new constructor parameters to set scl and sda pins. Also updating print funciton to debug pin number and port number for the gpio set.
    nrf5/i2c: Updating i2c module to new new hal api, as master is initialized with its own init function.
    nrf5/hal: Adding members to TWI config struct, device address and scl/sda pin. Renaming and adding function such that twi slave and master has seperate init function. Started implementation of master init function for nrf52 using DMA (hal_twie.c).
    nrf5/i2c: Updating module to use new struct layout from hal_twi.h
    nrf5/hal: Updating TWI with frequency enums.
    nrf5/examples: Updating game file to use ssd1305 display driver.
    nrf5/drivers: Updating examples in comment in oled ssd1305 object to use the draw module.
    nrf5/hal: Fixing nrf51 SPI pin configuration to use pin member of struct.
    nrf5/boards: Updating boards to comply to new style of configuring pins for uart and spi.
    nrf5/boards: Updating board configuration for pca10056 (nrf52840) with new pin configuration scheme for SPI and UART.
    nrf5/hal: Updating hal QSPI header with define guard to filter out usage of undefined structures and names when compiling against non-52840 targets.
    nrf5/drivers: Updating display objects to use new SPI pin configuration in print function.
    nrf5/hal: Updating SPI DMA variant with more frequencies, and allowing rx and tx buffers to be NULL.
    nrf5/uart: Updating uart module to use new config hal config structure members for pins. Changing board config provided pins to use const pointers from generated pins instead of pin name.
    nrf5/hal: Updating uart hal to use pointers to Pin objects instead of uint pin and port number.
    nrf5/hal: Updating uart hal to use pointers to Pin objects instead of uint pin and port number.
    nrf5: Updating modmachine to add SPI in globals dict when MICROPY_PY_MACHINE_HW_SPI define is set. This diverge from regular MICROPY_PY_MACHINE_SPI config. Fixes missing SPI in the machine module after renaming port SPI enable define.
    nrf5: Updating main.c to enable SPI if MICROPY_PY_MACHINE_HW_SPI is set. This diverge from regular MICROPY_PY_MACHINE_SPI config. Fixing missing init of SPI after renaming port SPI enable define.
    nrf5/spi: Adding multiple instances of machine SPI depending on which chip is targeted (nrf51/nrf52832/nrf52540). Updating board config requirement to give variable name of const pointer to Pin instead of a Pin name. Adding support of giving keyword set mosi/miso/clk pin through constructor.
    nrf5/hal: Updating SPI hal with full list of SPI interfaces as lookup tables for all devices. Updating init struct to pass Pin instance pointers instead of uint pin number and ports.
    nrf5/drivers: Activate ssd1289 object in the display module.
    nrf5/boards: Adding ssd1289 lcd module in pca10040 (nrf52832) board.
    nrf5: Adding ssd1289 driver and python module into build.
    nrf5/drivers: Adding ssd1289 lcd tft driver and python module.
    nrf5/hal: Fixing compile issues in quad SPI driver.
    nrf5/hal: Updating Quad SPI hal driver.
    nrf5/hal: Aligning assignment in hal_adc.c
    nrf5/hal: Adding more types to quad SPI header.
    nrf5: Syncing code after upmerge with master.
    nrf5/hal: Updating clock frequency enums and lookup table for quad spi.
    nrf5/hal: Adding QSPI base and IRQ num in c-file.
    nrf5/hal: Adding hal template files for 32mhz Quad SPI peripheral.
    nrf5/drivers: Optimizing update_line in ili9341 driver a bit.
    nrf5/drivers: Adding space in macro.
    nrf5/drivers: Adding rgb16.h with macro to convert 5-6-5 rgb values into a 16-bit value.
    nrf5: Adding configuration defines for SSD1289 lcd driver.
    nrf5: Removing old framebuffer implementation.
    nrf5: Remove old framebuffer implementation from being included into the build.
    nrf5/drivers: Enable framebuffer and graphics module to be compiled in by default if display is selected into the compilation.
    nrf5/drivers: Updating epaper driver sld00200p to use new framebuffer.
    nrf5/drivers: Removing debug printf's from epaper display python module.
    nrf5/drivers: Updating python example in comment for ls0xxb7dxx display module.
    nrf5/boards: Enable LS0XXB7DXXX display module in pca10056 board config.
    nrf5/drivers: Adding ls0xxb7dxx to display module.
    nrf5: Adding ssd1305 and ls0xxb7dxxx (sharp memory display) drivers to be included in build.
    nrf5/drivers: Updating sharp memory display driver and python module to a working state.
    nrf5/spi: Adding posibility to configure SPI firstbit mode to LSB or MSB. Default is MSB. Updating python module and hal driver.
    nrf5/drivers: Tuning memory lcd driver a bit. Fixing small mp_printf usage bug.
    nrf5/drivers: Adding sharp memory display driver. For now hardcoded to 2.7 inch variant.
    nrf5: Adding configuration define for sharp memory display series in mpconfigport.h preparing for driver to be included.
    nrf5/boards: Enable ssd1305 oled display to be default for pca10028 for now.
    nrf5/drivers: Adding ssd1305 oled driver. This is very similar to ssd1306, so a merge will happen soon.
    nrf5/drivers: Adding ssd1305 oled driver. This is very similar to ssd1306, so a merge will happen soon.
    nrf5/drivers: Updating ili9341 display object to use new framebuffer.
    nrf5/drivers: Updating ili9341 driver to use new framebuffer, and removing the compressed param from the line update function.
    nrf5: Adding micropython mem_info() to be included in mpconfigport.h.
    nrf5/drivers: Adding example in comment on how to use the ili9341 driver with nrf51/pca10028 board.
    nrf5/examples: Adding a extra global variable to the game which breaks the game execution.
    nrf5/examples: Adding 2048 game using OLED SSD1306 128x64 display and analog joystick.
    nrf52/boards: Increasing the stack and heap in pca10056 (nrf52840) target from 2k/32k to 40k/128k to debug some buffer problems when running large frozen python programs.
    nrf51/boards: Increasing heap and stack size in the pca10028 board.
    nrf51/boards: Enable display driver and oled ssd1306 (also bringing in framebuffer and graphics module) into the pca10028 target.
    nrf5: Enable display/framebuffer.c and graphic/draw.c into the build.
    nrf5/drivers: Adding defines to exclude implementation of draw.c module if not enabled.
    nrf5: Adding configuration defines for the graphics module (draw) and enabling this by default if using oled ssd1306 display which has a compatible python object definition.
    nrf5/drivers: Adding draw module with circle, rectangle and text functions. Can be used by any display object which implements display callback functions.
    nrf5/drivers: Moving oled ssd1306 driver over to new framebuffer layout. Moving some of the draw algorithms into the object in order to optimize the speed on writing data from the framebuffer.
    nrf5/hal: Removing stdio.h include in adce.c which were used for debugging.
    nrf5/boards: Adding ADC pins in pins.csv file for pca10056 (nrf52840).
    nrf52/hal: Adding adce (saadc) implementation for nrf52 to sample values on a channel.
    nrf5/adc: Adding all 8 instances to adc python module. Valid for both nrf51 and nrf52.
    nrf5/drivers: Adding new structures to moddisplay. Adding a display_t structure to cast all other displays into, to retrieve function pointer table of a display object type. Also adding the function table structure which needs to be filled by any display object.
    nrf5/drivers: Adding a new framebuffer implementation to replace the mono_fb.
    nrf5/boards: Updating pca10028 (nrf51) board config. Enable SPI machine module. Enable flow control on UART. Correcting SPI CLK, MISO and MOSI pin assignments.
    nrf5/adc: Updating adc module and hal with a new interface. No need for keeping peripheral base address in structure when there is only one peripheral (nrf51).
    nrf5/rtc: Correcting RTC1 base error in rtc template.
    nrf5: Adding adc module to machine module.
    nrf5/hal: Updating hal_adc* with more api functions.
    nrf5/adc: Adding updated adc module.
    nrf5/boards: Enabling ADCE (SAADC) variant of adc hal to match hardware on nrf52 series.
    nrf5/boards: Adding ADC config to pca10028 pins.csv
    nrf5/boards: Tuning linker script for nrf51822_ac to get some more heap.
    nrf5: Updating nrf51_af.csv to reflect pins having ADC on the chip.
    nrf5/boards: Updating make-pins.py to generate ADC pin settings from board pins.csv.
    nrf5/hal: Updating hal_adc header to use correct Type for ADC on nrf52.
    nrf5/adc: Updating module to compile.
    nrf5/boards: Enable ADC machine module for pca10028, pca10040 and pca10056.
    nrf5: Add add ADC machine module into build.
    nrf5: Adding new config for ADC module in mpconfigport.h.
    nrf5/adc: Adding ADC machine module base files. Implementation missing.
    nrf5: Adding hal_adc* into build.
    nrf5/boards: Enable ADC/SAADC hal for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/hal: Removing chip variant guard for hal_adc*, and let this be up to the hal conf file to not mess up at the moment.
    nrf5: Add i2c.c, i2c machine module, and hal_twi into build.
    nrf5/boards: Enable hardware I2C machine module for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/boards: Enable TWI hal for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/i2c: Adding files for hardware i2c machine module and adding config param in mpconfigport to disable by default.
    nrf5/hal: Adding template files for TWI (i2c) hal.
    nrf5/hal: Adding template files for ADC hal.
    nrf5/drivers: Correcting tabbing in oled ssd1306 c-module.
    nrf5/boards: Enable SSD1306 spi driver for pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/drivers: Adding SSD1306 SPI display driver. Not complete, but can do fill screen operation atm.
    nrf5/drivers: Adding epaper display example script in comment for pca10056 / nrf52840 in the display module.
    nrf5/boards: Enable PWM module and epaper display module in pca10056 board config.
    nrf5/drivers: Adding some more delay on bootup to ensure display recovers after reset.
    nrf5/examples: Adding copy of ssd1306.py driver hardcoded with SPI and Pin assignments.
    nrf5/drivers: Updating ili9341 driver to set CS high after cmd or data write.
    nrf5/drivers: Extending print function for ili9341 object to also print out gpio port of the SPI pins.
    nrf5/boards: Giving a bit more heap for nrf52840 linker script.
    nrf5/drivers: bugfix of the sld00200p driver. Stopping the pwm instead of restarting it. Shuffle placement of static function.
    nrf5/drivers: Correcting object print function to also include port number of the SPI pins. Correcting usage script example in comment.
    nrf5/drivers: Adding an initial script as comment for ili9341 on nrf52840/pca10056 in the driver module comment.
    nrf5/examples: Removing tabs from epaper python script usage comment, so that it is easier to copy paste.
    nrf5/hal: Refining if-defs to set up GPIO base pointers in mphalport.h
    nrf5/devices: Removing define which clutters ported modules from nrf.h.
    nrf5/boards: Enabling spi in pca10056 hal config.
    nrf5/boards: Enabling ili9341 display drivers and to be compiled in on pca10056 target board. Updating SPI configuration with gpio port.
    nrf5/boards: Enabling display drivers/spi/pwm to be compiled in on pca10040 target board. Updating SPI configuration with gpio port.
    nrf5/hal: Correcting SPI psel port position define name to the one defined in nrf52840_bitfields.h
    nrf5/led: Hardcoding GPIO port 0 for Led module for now.
    nrf5/hal: Changing import of nrf52 includes in hal_uarte.c to not be explicit. Now only nrf.h is included.
    nrf5: Updating pin, spi and uart to use port configuration for gpio pins. Update pin generation script, macros for PIN generation. Updating macros for setting pin values adding new port parameter to select the correct GPIO peripheral port.
    nrf5/boards: Disable SPI hal from pca10001 board.
    nrf5/boards: Disable SPI/Timer/RTC hal from microbit board.
    nrf5: Exclude import of pwm.h in modmachine.c if MICROPY_PY_MACHINE_PWM is not set, as nrf51 does not yet have this module yet.
    nrf5: Exclude import of pwm.h in main.c if MICROPY_PY_MACHINE_PWM is not set, as nrf51 does not yet have this module yet.
    nrf5/drivers: Block nrf51 from compiling epaper_sld00200p for the moment. There is no soft-pwm present yet, and including pwm would just make compilation fail now.
    nrf5/hal: Making nrf51/2_hal.h go trough nrf.h to find bitfields and other mcu headers instead of explicit include.
    nrf5/boards: Adding more pins to nrf52840 / pca10056 target board.
    nrf5/pin: Adding more pins to nrf52_af.csv file for nrf52840. Port '1' will be prefixed 'B'.
    nrf5/pin: Adding PORT_B to Pin port enum to reflect gpio port 1 on nrf52840.
    nrf5/boards: Updating all board configs with gpio port configuration for uart/spi pins. Leds still not defined by gpio port.
    nrf5/devices: Updating header files for nrf51 and nrf52. Adding headers for nrf52840.
    nrf5: Updating to use new nrfjprog in makefile. Needed for nrf52840 targets. Changed from pinreset to debug reset.
    nrf5/boards: Updating makefiles to use system.c files based on sub-variant of mcu.
    nrf5/devices: Renaming system.c files for nrf51 and nrf52 to be more explicit on which version of chip they are referring to.
    nrf5/drivers: Backing up working epaper display (sld00200p shield) driver before refactoring.
    nrf5/drivers: Fixing parenthesis in ILI9341 __str__ print function.
    nrf5/pwm: Moving out object types to header file so that it can be resused by other modules.
    nrf5/drivers: Updating a working version of ili9341 module and driver. About 10 times faster than python implementation to update a full screen.
    nrf5: Started to split up lcd_mono_fb such that it can be used as a c-library and python module with the same implementaton.
    nrf5/hal: Adding include of stdbool.h in hal_spi.h as it is used by the header.
    nrf5/drivers: Adding preliminary file for ili9341 lcd driver.
    nrf5/hal: Adding support for NULL pointer to be set if no rx buffer is of interest in SPI rx_tx function.
    nrf5: Adding ili9341 class and driver files in Makefile to be included in build.
    nrf5/drivers: Adding template files for upcomming ili9341 driver.
    nrf5/drivers: Adding lcd ili9341 object implementation to make a new instance. print implemented for debugging pins assigned to the display driver. No interaction yet with the hal driver.
    nrf5/drivers: Adding ILI9341 class to the display global dict.
    nrf5/boards: Changing tft lcd display name from SLD10261P to ILI9341 in pca10040 board configuration.
    nrf5: Moving out mp_obj_framebuf_t to the header file to get access to it from other modules. Exposing helper function to make new framebuffer object from c-code.
    nrf5: Trimming down display configurations in mpconfigport.h
    nrf5/spi: Moving *_spi_obj_t out of implementation file to header. Setting hal init structure in the object structure instead of making a temp struct to configure hal. This would enable lookup of the spi settings later.
    nrf5: Removing epaper, lcd and oled modules from Makefile source list as the display modules has been moved to display root folder.
    nrf5/drivers: Removing one level of module hierarchy in display drivers. Removed epaper, lcd and oled modules, making import of classes happen directly from display module.
    nrf5/drivers: Creating python object implementation (locals) to be used for epaper sld00200p.
    nrf5: Moving color defines in lcd_mono_fb from .c to .h so that it can be reused by other modules.
    nrf5: Enable MICROPY_FINALISER and REPL_AUTO_INDENT.
    nrf5/drivers: Adding requirement for nrf52 target on the epaper sld00200p for now. There is no ported PWM module for nrf51 target yet. Hence, soft PWM for nrf51 needs to be added.
    nrf5: Adding suffix to _obj on epaper_sld00200p module.
    nrf5: Correcting define name for epaper sld00200p, missing 0.
    nrf5/drivers: Enable EPAPER_SLD00200P in epaper module globals table.
    nrf5/drivers: Adding missing file for epaper module / driver.
    nrf5/modules: Moving python scripts to examples folder to free up some flash space on constrained targets as modules folder is used as frozen files folder.
    nrf5/boards: Enable display module to be built in. Also adding one epaper display and one tft lcd to test display module when porting the corresponding drivers to micropython.
    nrf5/drivers: Removing external decleration of display module in header.
    nrf5/drivers: Renaming display module to mp_module prefix as it is going to be inbuilt. ifdef'ing all submodules based on type of display configured through mpconfigport.h
    nrf5/drivers: Adding ifdef sourrounding the implementation of module. Configurable with mpconfigport.h.
    nrf5: Adding display module to port builtins.
    nrf5/drivers: Adding driver files to makefile. Implicitly adding display module.
    nrf5/drivers: Adding template for c-implementation of lcd, epaper and oled drivers as a display module.
    nrf5/modules: Updating to correct name of display in epaper driver.
    nrf5/modules: Adding python epaper display driver. Currently colors have been reversed.
    nrf5/hal: Fixing bug in mp_hal_pin_read in mphalport.h which tried to read an OUT register. Corrected to read the IN register.
    nrf5: Adding sleep_us to modutime.c and exposing mp_hal_delay_us in hal/hal_time.h
    nrf5/lcd: Updating framebuffer with double buffer for epaper displays. Moving statics into instance struct. Adding new function to refresh using old buffer, such that epaper can get a cleaner image after update.
    nrf5/boards: Adding initial microbit build files and board configurations.
    nrf5: Makefile option to set FLASHER when doing flash target. If defined in board .mk file, this will be used, else nrfjprog will be used by default (segger). This opens up for using pyocd flashtool and still run 'make flash'.
    nrf5/boards: Updating pca10028 board config to not define RTS/CTS pins when HWFC is set to 0.
    nrf5/uart: Making compile time exclusion of RTS/CTS if not defined to use flow control by board configuration.
    nrf5/spi: Removing automatic chip select (NSS) in hal_spi.c. Also removing configuration of this pin as it is confusing to pass it if not used. User of SPI has to set the NSS/CS itself.
    nrf5/modules: Updating PWM test python script to cope with new api.
    nrf5/hal: Fixing some issues in PWM stop function. Doing a proper stop and disable the peripheral.
    nrf5/pwm: Implementing start and stop call to hal on init and deinit as hal_init does not longer start the PWM automatically.
    nrf5/hal: Exposing two new PWM hal functions start() and stop().
    nrf5/hal: Moving enablement of PWM task from init to a start function. Also activating code in stop function to stop the PWM.
    nrf5/modules: Adding licence text on seeedstudio tft shield python modules.
    nrf52/boards: Tuning linker script for nrf52832 when using iot softdevice. Need more heap for LCD framebuffer.
    nrf5/lcd: Adding lcd_mono_fb.c to source list in the makefile. Adding define in implementation to de-select the file from being included. Adding module to PORT BUILTIN in mpconfigport.h
    nrf52/sdk: Correcting path to iot softdevice if SDK is enabled.
    nrf5: Adding help text for CTRL-D (soft reset) and and CTRL-E (paste mode) in help.c
    nrf5: Adding handling of CTRL+D to reset chip in main.c. Call to NVIC System Reset is issued.
    nrf5/lcd: Correcting indention (tabs with space) in framebuffer module source and header.
    nrf5/lcd: Changing framebuffer to use petme128 8x8 font. This is vertical font. Code modified to flip and mirror the font when rendering a character. Adding copy of the font from stmhal.
    nrf5/modules: Adding new driver for seeedstudio tft shield v2, using new framebuffer module which handles faster update on single lines, callback driven write on each line which is touched in the framebuffer.
    nrf5/lcd: Adding header file for lcd_mono_fb.
    nrf5/lcd: Updating brackets in framebuffer module.
    nrf5/lcd: Renaming variable name from m_ to p_
    nrf5/lcd: Cleaning up a bit in lcd framebuffer.
    nrf5/lcd: Adding work in progress monochrome lcd framebuffer driver which only updates modified (dirty) display lines.
    nrf5/modules: Updating pulse test to set output direction on the LED pin used in the test.
    nrf5/modules: Updating seeedstudio tft lcd driver to render using already existing framebuffer implementation.
    nrf5/boards: Bouncing up heap to 32k  on pca10040 to allow for application to allocate 9600bytes+ framebuffer when using LCD screen (240x320).
    nrf5/modules: Adding a function to get access to the SD card flash drive on the seeedstudio tft shield.
    nrf5/modules: Adding new python script to initialize and clear the display on Seeedstudio 2.8 TFT Touch Shield v2.
    nrf5/modules: Updating documentation on sdcard.py copy to use new params in the example description
    nrf5/modules: Updating mountsd, SD card test script with new params.
    nrf5/pin: Merging input and output pin configuration to one comon function. Adding implementation in Pin class to be able to configure mode and pull. Updating drivers which uses gpio pin configuration to use new function parameters.
    nrf5: Adding rtc.c which implements the machine rtc module to be included in build.
    nrf5/boards: Enable MICROPY_PY_MACHINE_RTC in pca10028 (nrf51) and pca10040 (nrf52) targets.
    nrf5/hal: Adding empty init function in hal_rtc.c
    nrf5/hal: Adding structures and init function prototype to hal_rtc.h.
    nrf5: Setting MICROPY_PY_MACHINE_RTC to disabled by default (during development) in mpconfigport.h. This can be overriden by board config.
    nrf5/rtc: Adding skeleton for machine rtc module for nrf51/52.
    nrf5: Adding timer.c which implements the machine timer module to be included in build.
    nrf5: Setting MICROPY_PY_MACHINE_TIMER to disabled by default (during development) in mpconfigport.h. This can be overriden by board config.
    nrf5/boards: Enable MICROPY_PY_MACHINE_TIMER in pca10028 (nrf51) and pca10040 (nrf52) targets.
    nrf5: Adding initialization of timer module if enabled by MICROPY_PY_MACHINE_TIMER.
    nrf5/timer: Adding initializaton of id field for Timer_HandleTypeDef's. Adding simple print function. Adding make_new function. Enabling the functions in machine_timer_type.
    nrf5/hal: Adding empty init function in hal_timer.c
    nrf5/hal: Adding structures and init function prototype to hal_timer.h.
    nrf5/timer: Adding skeleton for machine timer module for nrf51/52.
    nrf/boards: Adding RTC and TIMER hal to be linked in when implemented. Enable one board for nrf51 and one for nrf52 for ease of debugging when implementing the hal.
    nrf5: Adding rtc and timer hal to Makefile.
    nrf5/hal: Adding skeleton files for rtc and timer driver.
    nrf5/modules: Updating pulse example to work with Pin object instead of hard coded pin number.
    nrf5/pwm: Switching from hardcoded pin number to Pin object type as input to the new() function. Also changing the parameter from kw to arg.
    nrf5/modules: updating test python file with correct PWM frequency type.
    nrf5/modules: Adding a python test file with function to dim a specific led (17).
    nrf5/pwm: Updating pwm module with freq function which re-initilises the PWM instance such that new frequency will be applied.
    nrf5/pwm: Initializing pwm instances in main.c if enabled by MICROPY_PY_MACHINE_PWM.
    nrf5/pwm: Adding api to initialize pwm instances.
    nrf5: Updating mpconfigport.h to set a default for PWM machine module to be enabled by default, if not disabled in a board config. Refactoring order in the file.
    nrf52: Set names to be used on PWM0-2 in board config. For nrf52840, the PWM3 is excluded as repo does not have latest headers to reflect this yet. Bump up to be done soon.
    nrf52: Enable PWM HAL for both pca10040 (nrf52832) and pca10056 (nrf52840).
    nrf51: Disable MICROPY_PY_MACHINE_PWM for now in all nrf51 target boards as sw impl. is not yet included in the repo.
    nrf5: Only enable hal_pwm.c if nrf52 target as nrf51 must have a sw implementation.
    nrf5/pwm: Adding pwm to modmachine.c
    nrf5/hal: Updating PWM header file with init function prototype. Also added PWM_HandleTypeDef structure that can be used in the pwm python module.
    nrf5/pwm: Updating PWM dict table to have freq and duty function. Also added creation of default objects based on PWM name set in board config. Adding ifdef surrounding the import of hal_pwm.h as this module might be used by software implmentation of PWM later.
    nrf5/pwm: Removing include of hal_pwm.h as pwm.c might not use a hal, but sw implementation.
    nrf5: Updating makefile to compile in pwm.c and hal_pwm.c
    nrf5/boards: Adding config flag for HAL_PWM in pca10040 and pca10056.
    nrf5: Adding pwm work in progress machine PWM module.
    nrf5/hal: Starting implementation of PWM hal to be used by PWM python module later.
    nrf5: Adding initial board files for pca10056. The files are not complete (only 32 pins are added for now). UART REPL, leds, and Pins (up to 31) are functional.
    nrf5: Updating comment in linker script for nrf52832 and nrf52840 to distinguish between the two nrf52 variants.
    nrf5: Adding new linker script for nrf52840.
    nrf5: updating flash size comment in nrf52832 linker script.
    lib/netutils: Adding some basic parsing and formating of ipv6 address strings. Only working with full length ipv6 strings. Short forms not supported at the moment (for example FE80::1, needs to be expressed as FE80:0000:0000:0000:0000:0000:0000:0001).
    nrf5: Updating port with new content. SPI, SDcard (trough sdcard.py), Pin, and machine module. Also adding some basic modules depending on SDK and bluetooth stack from nordic semiconductor. NUS is module copied from original port by tralamazza, and new basic module for 6lowpan over BLE which can be used by modnetwork and modusocket. Basic BLE module to enable bluetooth stack and start a eddystone advertisment is kept, and still works without SDK, even if in the SDK folder (its placed there as it needs bluetooth stack from an SDK).
    Renaming softdevice folder to sdk.
    Removing unused 'NRF_SOFTDEVICE' compile variable from all board .mk softdevice targets.
    Fixing main Makefile CFLAGS concatination error when setting softdevice param

Daniel Tralamazza <daniel@tralamazza.com>
    ignore default build folders
    move softdevice (SD) specific code from the main Makefile to their respective board/SD makefiles

Glenn Ruben Bakke <glennbakke@gmail.com>
    Updating Makefile by removing unwanted LDFLAG setting cpu to cortex-m0 in all cases.
    Updating modble.c method doc of address_print() to reflect the actual function name.
    Base support for nrf51 and nrf52 base without depending on SDK. SoftDevice usage optional.

Daniel Tralamazza <daniel@tralamazza.com>
    remove dup declaration mp_builtin_open_obj
    init

Date of "init" commit: Wed Jun 22 22:34:11 2016 +0200
2018-07-18 17:12:25 +10:00
Eric Poulsen
419eb86074 esp32/modnetwork: Add network.(W)LAN.ifconfig('dhcp') support. 2018-07-18 11:02:11 +10:00
Peter D. Gray
0d58f6ba5e stm32/mphalport: Make mp_hal_stdin_rx_chr/stdout_tx_strn weakly linked.
To allow for customizations.
2018-07-18 10:41:55 +10:00
Damien George
46091b8a95 stm32/timer: Add tick_hz arg to Timer constructor and init method.
The period of the timer can now be specified using the "period" and
"tick_hz" args.  The period in seconds will be: period/tick_hz.  tick_hz
defaults to 1000, so if period is specified on its own then it will be in
units of milliseconds.
2018-07-17 13:36:36 +10:00
Damien George
821b59d439 stm32/timer: Use enum for indexing keyword arg in pyb_timer_init_helper. 2018-07-17 13:22:42 +10:00
Nicko van Someren
c3c914f4dd esp8266,esp32: Implement high-res timers using new tick_hz argument.
machine.Timer now takes a new argument in its constructor (or init method):
tick_hz which specified the units for the period argument.  The period of
the timer in seconds is: period/tick_hz.

For backwards compatibility tick_hz defaults to 1000.  If the user wants to
specify the period (numerator) in microseconds then tick_hz can be set to
1000000.  The user can also specify a period of an arbitrary number of
cycles of an arbitrary frequency using these two arguments.

An additional freq argument has been added to allow frequencies to be
specified directly in Hertz.  This supports floating point values when
available.
2018-07-17 13:17:23 +10:00
Damien George
a3ba5f127e esp32/modesp32: Use MP_ROM_QSTR and MP_ROM_PTR in const locals dict. 2018-07-16 00:02:35 +10:00
Jérôme Poulin
4f5b435d9b esp32/modesp32: Add raw temperature reading to esp32 module.
Using direct register control as specified by ESP-IDF in
components/esp32/test/test_tsens.c.  Temperature doesn't represent any
particular unit, isn't calibrated and will vary from device to device.
2018-07-16 00:02:26 +10:00
Peter D. Gray
2a3979bcb3 stm32/fatfs_port: Fix bug when MICROPY_HW_ENABLE_RTC not enabled.
Prior to this patch, get_fattime() was calling a HAL RTC function with the
HW instance pointer as null because rtc_init_start() was never called.

Also marked it as a weak function, to allow a board to override it.
2018-07-14 17:17:46 +10:00
Mitchell Currie
385fa51806 esp32: Implement WLAN.status() return codes.
Resolves #3913: missing esp32 status() implementation.
2018-07-14 16:26:43 +10:00
Damien George
3ab2f3fb2b unix/modos: Convert dir-type to stat-type for file type in ilistdir.
Fixes issue #3931.
2018-07-11 16:06:16 +10:00
Damien George
9c8141f07e esp32/modnetwork: Add support for bssid parameter in WLAN.connect(). 2018-07-09 14:01:52 +10:00
Damien George
e1ae9939ac stm32: Support compiling with object representation D.
With this and previous patches the stm32 port can now be compiled using
object representation D (nan boxing).  Note that native code and frozen mpy
files with float constants are currently not supported with this object
representation.
2018-07-08 23:25:11 +10:00
Damien George
3503f9626a stm32: Access dict map directly instead of using helper function. 2018-07-08 22:11:28 +10:00
Damien George
fb8fc597cf cc3200/mods: Access dict map directly instead of using helper func. 2018-07-08 22:08:24 +10:00
stijn
106e594580 windows: Make printing of debugging info work out of the box.
Printing debugging info by defining MICROPY_DEBUG_VERBOSE expects
a definition of the DEBUG_printf function which is readily available
in printf.c so include that file in the build. Before this patch
one would have to manually provide such definition which is tedious.

For the msvc port disable MICROPY_USE_INTERNAL_PRINTF though: the
linker provides no (easy) way to replace printf with the custom
version as defined in printf.c.
2018-07-05 19:44:18 +10:00
Nicko van Someren
14ab81e87a esp32: Reduce latency for handling of scheduled Python callbacks.
Prior to this patch there was a large latency for executing scheduled
callbacks when when Python code is sleeping: at the heart of the
implementation of sleep_ms() is a call to vTaskDelay(1), which always
sleeps for one 100Hz tick, before performing another call to
MICROPY_EVENT_POLL_HOOK.

This patch fixes this issue by using FreeRTOS Task Notifications to signal
the main thread that a new callback is pending.
2018-07-04 10:49:37 +10:00
Damien George
bccf9d3dcf esp8266: Let machine.WDT trigger the software WDT if obj is not fed.
This patch allows scripts to have more control over the software WDT.  If
an instance of machine.WDT is created then the underlying OS is prevented
from feeding the software WDT, and it is up to the user script to feed it
instead via WDT.feed().  The timeout for this WDT is currently fixed and
will be between 1.6 and 3.2 seconds.
2018-07-03 15:31:10 +10:00
Damien George
b6e5f82ba5 esp8266/modesp: Run ets_loop_iter before/after doing flash erase/write.
A flash erase/write takes a while and during that time tasks may be
scheduled via an IRQ.  To prevent overflow of the task queue (and loss of
tasks) call ets_loop_iter() before and after slow flash operations.

Note: if a task is posted to a full queue while a flash operation is in
progress then this leads to a fault when trying to print out the error
message that the queue is full.  This patch doesn't try to fix this
particular issue, it just prevents it from happening in the first place.
2018-07-03 14:46:29 +10:00
Damien George
349d8e1324 esp32: Allow to build with uPy floats disabled. 2018-07-03 12:10:03 +10:00
Damien George
8f86fbfd6c ports: Enable ure.sub() on stm32, esp8266 (not 512k) and esp32. 2018-07-02 15:13:18 +10:00
Damien George
79d5e3abb3 unix/mpconfigport_coverage: Enable ure groups, span, start, end and sub. 2018-07-02 14:55:05 +10:00
Damien George
d800ed1877 esp8266/esp8266_common.ld: Put mp_keyboard_interrupt in iRAM.
This function may be called from a UART IRQ, which may interrupt the system
when it is erasing/reading/writing flash.  In such a case all code
executing from the IRQ must be in iRAM (because the SPI flash is busy), so
put mp_keyboard_interrupt in iRAM so ctrl-C can be caught during flash
access.

This patch also takes get_fattime out of iRAM and puts it in iROM to make
space for mp_keyboard_interrupt.  There's no real need to have get_fattime
in iRAM because it calls other functions in iROM.

Fixes issue #3897.
2018-06-28 12:55:54 +10:00
Damien George
bc6c56d75d esp8266/mpconfigport.h: Enable ucryptolib module for standard build.
It remains disabled for the 512k build.
2018-06-27 16:45:22 +10:00
Damien George
82bc4838d2 esp32/mpconfigport.h: Enable ucryptolib module. 2018-06-27 16:44:59 +10:00
Damien George
05e0103e9e zephyr: Rename CONFIG_CONSOLE_PULL to CONFIG_CONSOLE_SUBSYS.
Following a similar change in the Zephyr Project.
2018-06-27 15:33:59 +10:00
Paul Sokolovsky
735358bcf4 zephyr/prj_qemu_x86.conf: Remove outdated CONFIG_RAM_SIZE.
Target RAM size is no longer set using Kconfig options, but instead using
DTS (device tree config). Fortunately, the default is now set to a high
value, so we don't need to use DTS fixup.
2018-06-27 14:59:17 +10:00
Paul Sokolovsky
543352ac21 zephyr/prj_base.conf: Remove outdated CONFIG_NET_NBUF_RX_COUNT option.
CONFIG_NET_NBUF_RX_COUNT no longer exists in Zephyr, for a while. That
means we build with the default RX buf count for a while too, and it works,
so just remove it (instead of switching to what it was renamed to,
CONFIG_NET_PKT_RX_COUNT).
2018-06-27 14:58:54 +10:00
Paul Sokolovsky
771911028c unix/mpconfigport.h: Enable MICROPY_PY_UCRYPTOLIB. 2018-06-27 14:56:59 +10:00
Paul Sokolovsky
567bc2d6ce extmod/moducryptolib: Add ucryptolib module with crypto functions.
The API follows guidelines of https://www.python.org/dev/peps/pep-0272/,
but is optimized for code size, with the idea that full PEP 0272
compatibility can be added with a simple Python wrapper mode.

The naming of the module follows (u)hashlib pattern.

At the bare minimum, this module is expected to provide:

* AES128, ECB (i.e. "null") mode, encrypt only

Implementation in this commit is based on axTLS routines, and implements
following:

* AES 128 and 256
* ECB and CBC modes
* encrypt and decrypt
2018-06-27 14:54:40 +10:00
Damien George
9b158d60e1 stm32/mboot: Always use a flash latency of 1WS to match 48MHz HCLK. 2018-06-26 00:06:04 +10:00
Damien George
967123d42e stm32/mboot: Only compile in code for the USB periph that is being used.
Prior to this patch, if both USB FS and HS were enabled via the
configuration file then code was included to handle both of their IRQs.
But mboot only supports listening on a single USB peripheral, so this patch
excludes the code for the USB that is not used.
2018-06-26 00:02:36 +10:00
Damien George
37c4fd3b50 stm32/mboot: Fix bug with invalid memory access of USB state.
Only one of pcd_fs_handle/pcd_hs_handle is ever initialised, so if both of
these USB peripherals are enabled then one of these if-statements will
access invalid memory pointed to by an uninitialised Instance.  This patch
fixes this bug by explicitly referencing the peripheral struct.
2018-06-25 23:39:46 +10:00
Damien George
6fc84a7454 stm32/modnetwork: Fix query of DNS IP address in ifconfig().
Thanks to @boochow for the fix.
2018-06-23 23:41:59 +10:00
Damien George
a2ac7e4fc9 stm32/boards: Add .ld and af.csv files for STM32F722.
These files can also be used for F723, F732 and F733 MCUs.
2018-06-22 15:39:10 +10:00
Damien George
ec7982ec6d stm32/mboot: Add support for erase/read/write of external SPI flash.
This patch adds support to mboot for programming external SPI flash.  It
allows SPI flash to be programmed via a USB DFU utility in the same way
that internal MCU flash is programmed.
2018-06-22 15:30:34 +10:00
Damien George
7f41f73f0f stm32/qspi: Don't require data reads and writes to be a multiple of 4.
Prior to this patch the QSPI driver assumed that the length of all data
reads and writes was a multiple of 4.  This patch allows any length.  Reads
are optimised for speed by using 32-bit transfers when possible, but writes
always use a byte transfer because they only use a single data IO line and
are relatively slow.
2018-06-22 15:07:01 +10:00
Damien George
561ae9a91b stm32/boards/NUCLEO_F091RC: Fix TICK_INT_PRIORITY so it is highest prio.
Fixes issue #3880.
2018-06-20 12:24:18 +10:00
Damien George
5962c210c5 stm32/mboot: Define constants for reset mode cycling and timeout.
And fix timeout value so that it does actually finish with reset_mode=1.
2018-06-19 23:23:17 +10:00
Damien George
e49cd106b4 stm32/spi: Fix SPI driver so it can send/recv more than 65535 bytes.
The DMA peripheral is limited to transferring 65535 elements at a time so
in order to send more than that the SPI driver must split the transfers up.

The user must be aware of this limit if they are relying on precise timing
of the entire SPI transfer, because there might be a small delay between
the split transfers.

Fixes issue #3851, and thanks to @kwagyeman for the original fix.
2018-06-18 17:41:14 +10:00
Damien George
338af99a7f stm32/can: Use MP_OBJ_ARRAY_TYPECODE_FLAG_RW where appropriate. 2018-06-18 13:42:05 +10:00
rolandvs
ca2b1d6b36 stm32/boards/NUCLEO_F091RC: Add Arduino-named pins and rename CPU pins.
To match pin labels on other NUCLEO 64 boards.
2018-06-18 13:06:27 +10:00
rolandvs
0d3de68669 stm32/boards/stm32f091_af.csv: Split labels that are multiple funcs. 2018-06-18 13:05:24 +10:00
Damien George
a5f5552a0a tests/unix/extra_coverage: Don't test stream objs with NULL write fun.
This behaviour of a NULL write C method on a stream that uses the write
adaptor objects is no longer supported.  It was only ever used by the
coverage build for testing the fail path of mp_get_stream_raise().
2018-06-18 12:35:56 +10:00
Damien George
ceff433fcc stm32/mboot: Adjust user-reset-mode timeout so it ends with mode=1.
If the user button is held down indefinitely (eg unintenionally, or because
the GPIO signal of the user button is connected to some external device)
then it makes sense to end the reset mode cycle with the default mode of
1, which executes code as normal.
2018-06-18 12:23:27 +10:00
Damien George
34b2f6b6fc esp32/modules: Include umqtt library in frozen modules. 2018-06-15 16:39:49 +10:00
Damien George
d61d119c94 esp32: Update to latest ESP IDF. 2018-06-15 16:23:53 +10:00
Damien George
7be4a23c0c stm32/i2cslave: Fix ordering of event callbacks in slave IRQ handler.
It's possible (at least on F4 MCU's) to have RXNE and STOPF set at the same
time during a call to the slave IRQ handler.  In such cases RXNE should be
handled before STOPF so that all bytes are processed before
i2c_slave_process_rx_end() is called.
2018-06-15 14:15:31 +10:00
Damien George
bc5e8a2cb6 stm32/i2c: Fix num_acks calculation in i2c_write for F0 and F7 MCU's.
Due to buffering of outgoing bytes on the I2C bus, detection of a NACK
using the ISR_NACKF flag needs to account for the case where ISR_NACKF
corresponds to the previous-to-previous byte.
2018-06-15 14:10:53 +10:00
Damien George
37a7257aff stm32/timer: Support TIM1 on F0 MCUs. 2018-06-15 10:50:08 +10:00
Damien George
cc5a94044a drivers/memory/spiflash: Rename functions to indicate they use cache.
This patch renames the existing SPI flash API functions to reflect the fact
that the go through the cache:

    mp_spiflash_flush -> mp_spiflash_cache_flush
    mp_spiflash_read  -> mp_spiflash_cached_read
    mp_spiflash_write -> mp_spiflash_cached_write
2018-06-14 16:52:56 +10:00
Damien George
335d26b27d stm32/boards/STM32L476DISC: Update SPI flash config for cache change. 2018-06-14 16:52:56 +10:00
Damien George
cf1509c911 esp32/fatfs_port: Implement get_fattime so FAT files have a timestamp.
Fixes issue #3859.
2018-06-13 14:13:34 +10:00
Damien George
5042d98514 stm32/Makefile: Rebuild all qstrs when any board configuration changes. 2018-06-12 13:53:43 +10:00
Damien George
0501427907 esp32: Remove port-specific uhashlib implementation and use common one.
Now that the common module has mbedtls support for both SHA1 and SHA256 it
can now be used on this port.
2018-06-12 13:50:11 +10:00
Damien George
565f590586 ports: Enable IOBase on unix, stm32, esp8266 and esp32.
It's a core feature, in particular required for user-streams with uasyncio.
2018-06-12 12:29:26 +10:00
Damien George
b2fa1b50ed ports: Call gc_sweep_all() when doing a soft reset.
This calls finalisers of things like files and sockets to cleanly close
them.
2018-06-12 11:56:25 +10:00
Damien George
24c416cc66 stm32/mboot: Increase USB rx_buf and DFU buf sizes to full 2048 bytes.
The DFU USB config descriptor returns 0x0800=2048 for the supported
transfer size, and this applies to both TX (IN) and RX (OUT).  So increase
the rx_buf to support this size without having a buffer overflow on
received data.

With this patch mboot in USB DFU mode now works with dfu-util.
2018-06-08 15:29:52 +10:00
Glenn Moloney
039f196c56 esp32/modnetwork: Fix isconnected() when using static IP config.
Currently <WLAN>.isconnected() always returns True if a static IP is set,
regardless of the state of the connection.

This patch introduces a new flag 'wifi_sta_connected' which is set in
event_handler() when GOT_IP event is received and reset when DISCONNECTED
event is received (unless re-connect is successful).  isconnected() now
simply returns the status of this flag (for STA_IF).

The pre-existing flag misleadingly named 'wifi_sta_connected" is also
renamed to 'wifi_sta_connect_requested'.

Fixes issue #3837
2018-06-08 13:13:21 +10:00
Damien George
190c7dba89 stm32/mpconfigport.h: Enable DELATTR_SETATTR and BUILTINS_NOTIMPLEMENTED
MICROPY_PY_DELATTR_SETATTR can now be enabled without a performance hit for
classes that don't use this feature.

MICROPY_PY_BUILTINS_NOTIMPLEMENTED is a minor addition that improves
compatibility with CPython.
2018-06-08 12:55:18 +10:00
Damien George
93150a0d40 ports: Enable descriptors on stm32, esp8266, esp32 ports.
They are now efficient (in runtime performance) and provide a useful
feature that's hard to obtain without them enabled.

See issue #3644 and PR #3826 for background.
2018-06-08 12:23:08 +10:00
Damien George
fadd6bbe43 unix/moduos_vfs: Add missing uos functions from traditional uos module.
Now that the coverage build has fully switched to the VFS sub-system these
functions were no longer available, so add them to the uos_vfs module.

Also, vfs_open is no longer needed, it's available as the built-in open.
2018-06-06 14:28:23 +10:00
Damien George
1d40f12e44 unix: Support MICROPY_VFS_POSIX and enable it in coverage build.
The unix coverage build is now switched fully to the VFS implementation, ie
the uos module is the uos_vfs module.  For example, one can now sandbox uPy
to their home directory via:

    $ ./micropython_coverage

    >>> import uos
    >>> uos.umount('/') # unmount existing root VFS
    >>> vfs = uos.VfsPosix('/home/user') # create new POSIX VFS
    >>> uos.mount(vfs, '/') # mount new POSIX VFS at root

Some filesystem/OS features may no longer work with the coverage build due
to this change, and these need to be gradually fixed.

The standard unix port remains unchanged, it still uses the traditional uos
module which directly accesses the underlying host filesystem.
2018-06-06 14:28:23 +10:00
Damien George
f35aae366c extmod/vfs_fat: Rename FileIO/TextIO types to mp_type_vfs_fat_XXX.
So they don't clash with other VFS implementations.
2018-06-06 14:28:23 +10:00
Damien George
aace60a75e esp8266/modules/ntptime.py: Remove print of newly-set time.
It should be up to the user if they want to print the new time out or not.

Fixes issue #3766.
2018-06-05 14:30:35 +10:00
Damien George
a90124a9e2 esp32: Add support for building with external SPI RAM.
This patch adds support for building the firmware with external SPI RAM
enabled.  It is disabled by default because it adds overhead (due to
silicon workarounds) and reduces performance (because it's slower to have
bytecode and objects stored in external RAM).

To enable it, either use "make CONFIG_SPIRAM_SUPPORT=1", or add this line
to you custom makefile/GNUmakefile (before "include Makefile"):

    CONFIG_SPIRAM_SUPPORT = 1

When this option is enabled the MicroPython heap is automatically allocated
in external SPI RAM.

Thanks to Angus Gratton for help with the compiler and linker settings.
2018-06-05 13:57:59 +10:00
Angus Gratton
bc92206f89 esp32/Makefile: Extract common C & C++ flags for consistent compilation. 2018-06-05 13:05:12 +10:00
Damien George
df13ecde06 cc3200/mods: Include stream.h to get definition of mp_stream_p_t. 2018-06-04 16:58:45 +10:00
Damien George
309fe39dbb stm32/modnetwork: Fix arg indexing in generic ifconfig method. 2018-06-03 21:50:49 +10:00
Damien George
7d86ac6c01 stm32: Add network driver for Wiznet5k using MACRAW mode and lwIP.
The Wiznet5k series of chips support a MACRAW mode which allows the host to
send and receive Ethernet frames directly.  This can be hooked into the
lwIP stack to provide a full "socket" implementation using this Wiznet
Ethernet device.  This patch adds support for this feature.

To enable the feature one must add the following to mpconfigboard.mk, or
mpconfigport.mk:

    MICROPY_PY_WIZNET5K = 5500

and the following to mpconfigboard.h, or mpconfigport.h:

    #define MICROPY_PY_LWIP (1)

After wiring up the module (X5=CS, X4=RST), usage on a pyboard is:

    import time, network
    nic = network.WIZNET5K(pyb.SPI(1), pyb.Pin.board.X5, pyb.Pin.board.X4)
    nic.active(1)
    while not nic.isconnected():
        time.sleep_ms(50) # needed to poll the NIC
    print(nic.ifconfig())

Then use the socket module as usual.

Compared to using the built-in TCP/IP stack on the Wiznet module, some
performance is lost in MACRAW mode: with a lot of memory allocated to lwIP
buffers, lwIP gives Around 750,000 bytes/sec max TCP download, compared
with 1M/sec when using the TCP/IP stack on the Wiznet module.
2018-06-01 14:21:38 +10:00
Damien George
d9f1ecece2 stm32/modnetwork: Provide generic implementation of ifconfig method.
All it needs is a lwIP netif to function.
2018-06-01 13:33:14 +10:00
Damien George
7437215ad7 stm32/modnetwork: Change base entry of NIC object from type to base.
mod_network_nic_type_t doesn't need to be an actual uPy type, it just needs
to be an object.
2018-06-01 13:31:28 +10:00
Damien George
6d87aa54d6 stm32/modnetwork: Don't take netif's down when network is deinited.
It should be up to the NIC itself to decide if the network interface is
removed upon soft reset.  Some NICs can keep the interface up over a soft
reset, which improves usability of the network.
2018-06-01 13:27:06 +10:00
Damien George
a1acbad27a stm32/flash: Increase H7 flash size to full 2MiB. 2018-05-30 09:54:51 +10:00
rolandvs
958fa74521 stm32/boards: Ensure USB OTG power is off for NUCLEO_F767ZI.
And update the GPIO init for NUCLEO_H743ZI to consistently use the mphal
functions.
2018-05-30 09:51:19 +10:00
rolandvs
50bc34d4a4 stm32/boards: Split combined alt-func labels and fix some other errors.
Pins with multiple alt-funcs for the same peripheral (eg USART_CTS_NSS)
need to be split into individual alt-funcs for make-pins.py to work
correctly.

This patch changes the following:
- Split `..._CTS_NSS` into `..._CTS/..._NSS`
- Split `..._RTS_DE` into `..._RTS/..._DE`
- Split `JTDO_SWO` into `JTDO/TRACESWO` for consistency
- Fixed `TRACECK` to `TRACECLK` for consistency
2018-05-29 21:37:49 +10:00
Damien George
98d1609358 stm32/README: Update to include STM32F0 in list of supported MCUs. 2018-05-28 22:04:08 +10:00
Damien George
e681372017 stm32/boards: Add NUCLEO_F091RC board configuration files. 2018-05-28 21:49:49 +10:00
Damien George
1163400039 stm32/boards: Add alt-func CSV list and linker script for STM32F091. 2018-05-28 21:49:49 +10:00
Damien George
ea7e747979 stm32: Add support for STM32F0 MCUs. 2018-05-28 21:49:49 +10:00
Damien George
4a7d157a5b stm32/boards: Add startup_stm32f0.s for STM32F0 MCUs.
Sourced from STM32Cube_FW_F0_V1.9.0.
2018-05-28 21:49:49 +10:00
Damien George
6d83468a30 stm32: Allow a board to disable MICROPY_VFS_FAT. 2018-05-28 21:46:20 +10:00
Damien George
5c0685912f stm32/timer: Make timer_get_source_freq more efficient by using regs.
Use direct register access to get the APB clock divider.  This reduces code
size and makes the code more efficient.
2018-05-28 21:46:20 +10:00
Damien George
070937fe93 stm32: Add support for Cortex-M0 CPUs. 2018-05-28 21:46:20 +10:00
Damien George
f497723802 stm32: Allow to have no storage support if there are no block devices.
If no block devices are defined by a board then storage support will be
disabled.  This means there is no filesystem provided by either the
internal flash or external SPI flash.  But the VFS system can still be
enabled and filesystems provided on external devices like an SD card.
2018-05-28 21:45:46 +10:00
Damien George
aa4a7a8732 stm32/usb: Guard USB device code with #if for whether USB is enabled.
With this change, all the USB source code can now be passed through the
compiler even if the MCU does not have a USB peripheral.
2018-05-28 21:45:46 +10:00
Nick Moore
ef4c8e6e97 esp32: Silence ESP-IDF log messages when in raw REPL mode.
This prevents clients such as ampy, mpy-utils, etc getting confused by
extraneous data.
2018-05-28 20:15:08 +10:00
Damien George
15ddc20436 stm32: Add new component, the mboot bootloader.
Mboot is a custom bootloader for STM32 MCUs.  It can provide a USB DFU
interface on either the FS or HS peripherals, as well as a custom I2C
bootloader interface.
2018-05-24 23:21:19 +10:00
Damien George
f47eeab0ad stm32: Add low-level hardware I2C slave driver. 2018-05-24 23:11:13 +10:00
Damien George
4200018a05 stm32: Remove unneeded HTML release notes from usbdev and usbhost dirs.
These files provide no additional information, all the version and license
information is captured in the relevant files in these subdirectories.

Thanks to @JoeSc for the original patch.
2018-05-24 11:28:54 +10:00
Damien George
df9b7e8f24 esp32/esp32.custom_common.ld: Put soc code in iram0.
This is what the IDF does, it must be done.
2018-05-23 12:57:50 +10:00
Damien George
20b4b85f72 ports: Enable MICROPY_PY_BUILTINS_ROUND_INT on selected ports. 2018-05-22 14:18:16 +10:00
Damien George
e773a2cdba stm32/main: Use consistent indenting of macro #if's. 2018-05-22 13:17:03 +10:00
Damien George
f68e722005 stm32/rng: Use Yasmarang for rng_get() if MCU doesn't have HW RNG. 2018-05-22 10:36:03 +10:00
Damien George
cda964198a stm32: Integrate lwIP as implementation of usocket module.
This patch allows to use lwIP as the implementation of the usocket module,
instead of the existing socket-multiplexer that delegates the entire TCP/IP
layer to the NIC itself.

This is disabled by default, and enabled by defining MICROPY_PY_LWIP to 1.

When enabled, the lwIP TCP/IP stack will be included in the build with
default settings for memory usage and performance (see
lwip_inc/lwipopts.h).  It is then up to a particular NIC to register itself
with lwIP using the standard lwIP netif API.
2018-05-21 17:36:06 +10:00
Damien George
6c955932f3 stm32/rtc: Don't try to set SubSeconds value on RTC.
The hardware doesn't allow it, instead the value is reset to 255 upon
setting the other calendar/time values.
2018-05-21 14:08:37 +10:00
Daniel Shaulov
cac2eddc16 minimal/main: Allow to compile without GC enabled. 2018-05-21 13:13:21 +10:00
Damien George
afd0701bf7 esp8266: Change UART(0) to attach to REPL via uos.dupterm interface.
This patch makes it so that UART(0) can by dynamically attached to and
detached from the REPL by using the uos.dupterm function.  Since WebREPL
uses dupterm slot 0 the UART uses dupterm slot 1 (a slot which is newly
introduced by this patch).  UART(0) must now be attached manually in
boot.py (or otherwise) and inisetup.py is changed to provide code to do
this.  For example, to attach use:

    import uos, machine
    uart = machine.UART(0, 115200)
    uos.dupterm(uart, 1)

and to detach use:

    uos.dupterm(None, 1)

When attached, all incoming chars on UART(0) go straight to stdin so
uart.read() will always return None.  Use sys.stdin.read() if it's needed
to read characters from the UART(0) while it's also used for the REPL (or
detach, read, then reattach).  When detached the UART(0) can be used for
other purposes.

If there are no objects in any of the dupterm slots when the REPL is
started (on hard or soft reset) then UART(0) is automatically attached.
Without this, the only way to recover a board without a REPL would be to
completely erase and reflash (which would install the default boot.py which
attaches the REPL).
2018-05-21 11:31:59 +10:00
Damien George
2923671a0c esp32/Makefile: Update to latest ESP IDF version. 2018-05-21 11:28:36 +10:00
Paul Sokolovsky
478410b409 zephyr/Makefile: Add kobj_types_h_target to Z_EXPORTS.
New generated Zephyr header file, without it build breaks.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky
5a023372df zephyr: Add prj_disco_l475_iot1.conf with sensor drivers. 2018-05-21 10:35:16 +10:00
Paul Sokolovsky
7afbc49863 zephyr/prj_base.conf: Enable DHCP and group static IPs together.
Add CONFIG_NET_DHCPV4, which, after
https://github.com/zephyrproject-rtos/zephyr/pull/5750 works as follows:
static addresses are configured after boot, and DHCP requests are sent
at the same time. If valid DHCP reply is received, it overrides static
addresses.

This setup works out of the box for both direct connection to a
workstation (DHCP server usually is not available) and for connection
to a router (DHCP is available and required).
2018-05-21 10:35:16 +10:00
Paul Sokolovsky
0e52ee957d zephyr/modzsensor: Zephyr sensor subsystem bindings. 2018-05-21 10:35:16 +10:00
Paul Sokolovsky
080b0be1c8 zephyr/mpconfigport.h: Enable uhashlib and ubinascii modules.
To be able to use data integrity checks in various tests.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky
9480c188e8 zephyr/main: After builtin testsuite, drop to REPL.
It makes sense to make even testsuite-enabled builds be suitable for
interactive use.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky
1050045979 zephyr/README: Hint about existence of qemu_x86_nommu. 2018-05-21 10:35:16 +10:00
Tobias Badertscher
769e37b646 stm32/boards: Add config files for new board, STM32L496GDISC. 2018-05-18 22:39:49 +10:00
Tobias Badertscher
4005c63571 stm32/boards: Add board ld and af.csv files for STM32L496 MCU. 2018-05-18 22:39:44 +10:00
Tobias Badertscher
708cdb6276 stm32: Add support for STM32L496 MCU. 2018-05-18 22:37:30 +10:00
Damien George
58331e3c28 esp8266/modmachine: Allow I2C and SPI to be configured out of the build.
I2C costs about 3000 bytes of code, and SPI costs about 4400 bytes.
2018-05-17 23:37:12 +10:00
Damien George
dd13065843 esp8266/modnetwork: Raise ValueError when getting invalid WLAN id.
Instead of crashing due to out-of-bounds array access.  Fixes #3348.
2018-05-17 22:12:24 +10:00
Damien George
f8a5cd24d8 esp8266/modnetwork: Return empty str for hostname if STA is inactive.
Instead of crashing due to NULL pointer dereference.  Fixes issue #3341.
2018-05-17 22:11:22 +10:00
Damien George
94a79f340d esp8266/mpconfigport.h: Add some weak links to common Python modules.
To make it easier/simpler to write code that can run under both CPython and
on an ESP8266 board.
2018-05-17 13:27:18 +10:00
Ryan Shaw
b9ff46f1ed stm32: Enable UART7/8 on F4 series that have these peripherals. 2018-05-16 11:55:07 +10:00
Damien George
cdaace1fdf esp32/modnetwork: Fix STA/AP activate/deactivate for new IDF API.
WIFI_MODE_NULL is no longer supported by the ESP IDF, instead one must use
esp_wifi_start/esp_wifi_stop.
2018-05-15 11:50:37 +10:00
Damien George
e6b66f1092 stm32/usb: Initialise cdc variable to prevent compiler warnings.
Some compilers cannot deduce that cdc will always be written before being
used.
2018-05-15 00:18:03 +10:00
Damien George
47ecbbbecb stm32/usb: Add ability to have 2x VCP interfaces on the one USB device.
This patch adds the configuration MICROPY_HW_USB_ENABLE_CDC2 which enables
a new USB device configuration at runtime: VCP+VCP+MSC.  It will give two
independent VCP interfaces available via pyb.USB_VCP(0) and pyb.USB_VCP(1).
The first one is the usual one and has the REPL on it.  The second one is
available for general use.

This configuration is disabled by default because if the mode is not used
then it takes up about 2200 bytes of RAM.  Also, F4 MCUs can't support this
mode on their USB FS peripheral (eg PYBv1.x) because they don't have enough
endpoints.  The USB HS peripheral of an F4 supports it, as well as both the
USB FS and USB HS peripherals of F7 MCUs.
2018-05-14 23:44:45 +10:00
Damien George
2e565cc0d4 stm32/usb: Change HID report funcs to take HID state, not usbdev state. 2018-05-14 17:04:43 +10:00
Damien George
91bca340ec stm32/usb: Change CDC tx/rx funcs to take CDC state, not usbdev state. 2018-05-14 16:55:04 +10:00
Damien George
68271a27e6 stm32/usb: Make CDC endpoint definitions private to core usbdev driver. 2018-05-14 16:53:45 +10:00
Damien George
ed92d62326 stm32/usb: Combine HID lower-layer and interface state into one struct. 2018-05-14 16:34:31 +10:00
Damien George
bf08a99ccd stm32/usb: Combine CDC lower-layer and interface state into one struct. 2018-05-14 16:15:58 +10:00
Damien George
ed32284b70 stm32/usb: Use usbd_cdc_itf_t pointer directly in USB_VCP class. 2018-05-14 15:24:44 +10:00
Damien George
fb25c81062 stm32/modpyb: Remove unused includes and clean up comments.
The documentation (including the examples) for elapsed_millis and
elapsed_micros can be found in docs/library/pyb.rst so doesn't need to be
written in full in the source code.
2018-05-14 14:01:50 +10:00
Damien George
88c26a48b4 stm32/pyb_i2c: Put pyb.I2C under MICROPY_PY_PYB_LEGACY setting.
When disabled, the pyb.I2C class saves around 8k of code space and 172
bytes of RAM.  The same functionality is now available in machine.I2C
(for F4 and F7 MCUs).

It is still enabled by default.
2018-05-14 13:53:46 +10:00
Damien George
92c5e2708d stm32/modpyb: Introduce MICROPY_PY_PYB_LEGACY config option for pyb mod.
This is enabled by default.  When it is disabled all legacy functions and
classes in the pyb module are excluded from the build.
2018-05-14 13:49:22 +10:00
Damien George
a0f7b4c678 stm32/accel: Switch pyb.Accel to use new C-level I2C API. 2018-05-14 13:23:18 +10:00
Damien George
ce824bb67e stm32/machine_i2c: Use new F4 hardware I2C driver for machine.I2C class.
And remove the old one based on ST code.
2018-05-14 13:22:12 +10:00
Damien George
b21415ed4f stm32/i2c: Add new hardware I2C driver for F4 MCUs.
This driver uses low-level register access to control the I2C peripheral
(ie it doesn't rely on the ST HAL) and provides the same C-level API as the
existing F7 hardware driver.
2018-05-14 13:19:03 +10:00
Peter D. Gray
ca36645410 stm32/usbd_hid_interface: Address possible race condition vs. interrupt.
The USB IRQ may fire once USBD_HID_ClearNAK() is called and then change the
last_read_len value.
2018-05-14 12:08:34 +10:00
Peter D. Gray
1f1623d3b7 stm32/usbdev: Be honest about data not being written to HID endpoint.
USB_HID.send() should now return 0 if it could not send the report to the
host.
2018-05-14 12:01:27 +10:00
Bas Wijnen
67e1a4f8be esp32: Update to latest ESP IDF version.
- Updated supported git hash to current IDF version.
- Added missing targets and includes to Makefile.
- Updated error codes for networking module.
- Added required constant to sdkconfig configuration.
2018-05-14 11:42:46 +10:00
Damien George
aeaace0737 stm32/usbdev: Remove unused RxState variable, and unused struct. 2018-05-11 23:20:59 +10:00
Damien George
abde0fa226 stm32/usbdev: Convert files to unix line endings.
Also remove trailing whitespace and convert tabs to spaces.
2018-05-11 23:03:52 +10:00
Damien George
56a273ebff stm32/usbd_conf: Changes files to unix line endings and apply styling.
This patch is only cosmetic and has no functional change.
2018-05-11 22:17:58 +10:00
Damien George
9f4eda542a stm32/usbd_conf.h: Remove unused macros and clean up header file. 2018-05-11 22:04:56 +10:00
Damien George
b208aa189e stm32/README: Update to reflect current MCU support. 2018-05-11 10:36:46 +10:00
Damien George
c1115d931f stm32/usb: Use correct type for USB HID object. 2018-05-09 16:00:19 +10:00
Damien George
e1bc85416a stm32/usb: Fix broken pyb.have_cdc() so it works again. 2018-05-09 15:59:48 +10:00
Damien George
e638defff4 stm32/i2c: Make sure stop condition is sent after receiving addr nack. 2018-05-09 15:53:09 +10:00
Damien George
aea71dbde0 stm32/Makefile: Use -O2 to optimise compilation of lib/libc/string0.c. 2018-05-04 15:53:51 +10:00
Damien George
cb3456ddfe stm32: Don't use %lu or %lx for formatting, use just %u or %x.
On this 32-bit arch there's no need to use the long version of the format
specifier.  It's only there to appease the compiler which checks the type
of the args passed to printf.  Removing the "l" saves a bit of code space.
2018-05-04 15:52:03 +10:00
Damien George
b614dc73b0 stm32/dma: Fix duplicate typedef of struct, it's typedef'd in dma.h. 2018-05-04 15:35:43 +10:00
Damien George
12a3fccc7e esp32/modsocket: Check for pending events during blocking socket calls. 2018-05-03 00:09:25 +10:00
Damien George
4fa7d36cee esp32: Use mp_rom_map_elem_t and MP_ROM_xxx macros for const dicts. 2018-05-02 22:33:41 +10:00
Damien George
6681eb809a esp32/modsocket: Correctly handle reading from a peer-closed socket.
If a socket is cleanly shut down by the peer then reads on this socket
should continue to return zero bytes.  The lwIP socket API does not have
this behaviour (it only returns zero once, then blocks on subsequent calls)
so this patch adds explicit checks and logic for peer closed sockets.
2018-05-02 22:31:00 +10:00
Torwag
fb7dabb971 esp32/README: Add --init to submodule update command.
Add --init to the submodule update example, thus, all submodules get
initialised including the nested (--recursive) ones.  Without it there
might not be a submodule init.
2018-05-02 17:24:17 +10:00
Damien George
6410e174c5 esp8266: Disable DEBUG_PRINTERS for 512k build.
Disabling this saves around 6000 bytes of code space and gets the 512k
build fitting in the available flash again (it increased lately due to an
increase in the size of the ESP8266 SDK).
2018-05-02 15:51:19 +10:00
Damien George
051686b0a8 stm32/main: Clean up and optimise initial start-up code of the MCU. 2018-05-02 15:20:24 +10:00
Damien George
a03e6c1e05 stm32/irq: Define IRQ priorities directly as encoded hardware values.
For a given IRQn (eg UART) there's no need to carry around both a PRI and
SUBPRI value (eg IRQ_PRI_UART, IRQ_SUBPRI_UART).  Instead, the IRQ_PRI_UART
value has been changed in this patch to be the encoded hardware value,
using NVIC_EncodePriority.  This way the NVIC_SetPriority function can be
used directly, instead of going through HAL_NVIC_SetPriority which must do
extra processing to encode the PRI+SUBPRI.

For a priority grouping of 4 (4 bits for preempt priority, 0 bits for the
sub-priority), which is used in the stm32 port, the IRQ_PRI_xxx constants
remain unchanged in their value.

This patch also "fixes" the use of raise_irq_pri() which should be passed
the encoded value (but as mentioned above the unencoded value is the same
as the encoded value for priority grouping 4, so there was no bug from this
error).
2018-05-02 14:41:02 +10:00