Commit Graph

443 Commits

Author SHA1 Message Date
Mark e326d7ca80
Merge branch 'main' into rp_dp_parallel 2021-03-15 20:00:13 -05:00
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
gamblor21 56a219911f Add frequency support to parallel bus 2021-03-11 19:32:43 -06:00
jposada202020 be90fa80e8 Initial Changes 2021-03-09 10:48:33 -05:00
Jeff Epler 1d1ff5f308 Merge remote-tracking branch 'origin/main' into update-protomatter-rp2 2021-02-26 09:56:35 -06:00
Jeff Epler ff1942cff6 Enable protomatter on RP2040 builds
Also found a race condition between timer_disable and redraw, which
would happen if I debugger-paused inside common_hal_rgbmatrix_timer_disable
or put a delay or print inside it.  That's what pausing inside reconstruct
fixes.

So that the "right timer" can be chosen, `timer_allocate` now gets the `self`
pointer.  It's guaranteed at this point that the pin information is accurate,
so you can e.g., find a PWM unit related to the pins themselves.
This required touching each port to add the parameter even though it's
unused everywhere but raspberrypi.
2021-02-12 08:25:15 -06:00
Dan Halbert f0564b4986 merge from upstream; complicated webusb merge 2021-02-11 18:50:02 -05:00
Dan Halbert 3a68ac8abb
Merge pull request #3536 from pewpew-game/pew-get-ticks
Fix #3504: Don't use time module in pew.tick()
2021-02-08 17:50:44 -05:00
BiffoBear 2656c84b01 Initial commit. Edited error messages in .c files 2021-02-03 05:49:40 +07:00
Dan Halbert 4be5e914ac
Merge pull request #3966 from dhalbert/samd-dac-channels
fix atmel-samd DAC channel selection logic
2021-01-12 13:01:50 -05:00
Dan Halbert 452d66dd0e
Update ports/atmel-samd/common-hal/analogio/AnalogOut.c
whoops, yes!

Co-authored-by: Scott Shawcroft <scott@tannewt.org>
2021-01-11 19:12:52 -05:00
Dan Halbert 316bd0c72d fix atmel-samd DAC channel selection logic 2021-01-10 19:22:15 -05:00
Dan Halbert 908e02439d Look up TCC resolution as necessary 2021-01-09 15:04:23 -05:00
microDev dc332baa87
update common_hal_reset_pin() 2020-12-28 20:04:00 +05:30
Uwe Gartmann 2729666d82
SAMD51: change of DAC power setting
Fixes wrong DAC output levels at high data rate
closes adafruit#3796
2020-12-25 17:53:43 +01:00
Scott Shawcroft eb65765d52
Merge pull request #3867 from dhalbert/frequencyin-fix-6.0.x
FrequencyIn: do not raise in interrupt handler
2020-12-23 12:14:16 -08:00
Dan Halbert 89079039ad FrequencyIn: do not raise in interrupt handler 2020-12-22 18:54:42 -05:00
Scott Shawcroft 40118bcf57
Add `board_deinit` for use with sleep
This changes lots of files to unify `board.h` across ports. It adds
`board_deinit` when CIRCUITPY_ALARM is set. `main.c` uses it to
deinit the board before deep sleeping (even when pretending.)

Deep sleep is now a two step process for the port. First, the
port should prepare to deep sleep based on the given alarms. It
should set alarms for both deep and pretend sleep. In particular,
the pretend versions should be set immediately so that we don't
miss an alarm as we shutdown. These alarms should also wake from
`port_idle_until_interrupt` which is used when pretending to deep
sleep.

Second, when real deep sleeping, `alarm_enter_deep_sleep` is called.
The port should set any alarms it didn't during prepare based on
data it saved internally during prepare.

ESP32-S2 sleep is a bit reorganized to locate more logic with
TimeAlarm. This will help it scale to more alarm types.

Fixes #3786
2020-12-08 10:52:25 -08:00
Dan Halbert 8b7c23c1ee address review comments 2020-12-01 20:01:14 -05:00
Dan Halbert 104a089677 deep sleep working; deep sleep delay when connected 2020-11-26 22:06:37 -05:00
Dan Halbert ef0830bfe2 merge from upstream + wip 2020-11-25 17:52:06 -05:00
Dan Halbert a0f1ec3c4a wip 2020-11-22 19:10:09 -05:00
Dan Halbert 75559f35cc wip: ResetReason to microcontroller.cpu 2020-11-21 23:29:52 -05:00
Jeff Epler aaca3eccf1 samd: PDMIn: Reduce code unrolling on samd21 only
Instead of unrolling the code 16 times, unroll it 4 times and loop
over it 4 times.  This gives the same 16 iterations, but at an expense
of less flash space.
2020-11-19 16:19:37 -06:00
Dan Halbert ffff02c053 Merge remote-tracking branch 'adafruit/main' into sleep 2020-11-16 12:06:11 -05:00
Scott Shawcroft bda3267432
Save flash space
* No weak link for modules. It only impacts _os and _time and is
  already disabled for non-full builds.
* Turn off PA00 and PA01 because they are the crystal on the Metro
  M0 Express.
* Change ejected default to false to move it to BSS. It is set on
  USB connection anyway.
* Set sinc_filter to const. Doesn't help flash but keeps it out of
  RAM.
2020-11-13 18:57:52 -08:00
Scott Shawcroft 68eb809fbf
Update parallel bus signatures 2020-11-13 18:57:52 -08:00
microDev 930cf14dce
Add check for invalid io, function to disable all alarms 2020-10-27 16:17:26 -07:00
microDev e35938971a
Add description of alarm modules 2020-10-27 16:16:55 -07:00
Jeff Epler fb768dfc14 samd: AnalogOut: Better handle boards which IGNOREd analog pins 2020-10-17 20:08:32 -05:00
Jeff Epler eb0b023dee samd: extend IGNORE_PIN_foo to all sam e5x/e5x pins 2020-10-17 20:08:32 -05:00
Jeff Epler aa3c890ead samd: pin: Fix 'undefined reference to pin_PA30'
.. when PA30 is IGNOREd
2020-10-17 20:08:32 -05:00
Scott Shawcroft 379e73af2e
Finer grained, per port tick locking
Fixes #3504 hopefully.
2020-10-12 18:43:21 -07:00
Radomir Dopieralski 3f6ca7bd32 Make end-of-line-fixer happy 2020-10-10 23:59:44 +02:00
Radomir Dopieralski b227b79dec Fix #3504: Don't use time module in pew.tick()
The time.sleep() and time.monotonic() functions break the timer
interrupt on which PewPew10 display relies, so we can't use them
anymore. Instead I'm adding a time-keeping function to the display
code itself, which then can be used in pew.tick() internally.
2020-10-10 20:26:33 +02:00
Jeff Epler 16ed875f4e canio: remove unused fields
these relate to properties that were removed as well
2020-10-06 20:14:50 -05:00
Jeff Epler 611f81ac1a canio: actually drop the _error_count properties
thanks @tannewt
2020-09-29 14:25:53 -05:00
Jeff Epler f4e36fc7f6 CAN: Use mp_obj_t insteaed of canio_message_obj_t, get rid of rtr field 2020-09-28 17:22:00 -05:00
Jeff Epler 3e97e9c4be canio: Listener: shuffle function declarations around 2020-09-28 17:22:00 -05:00
Jeff Epler 48bda589b8 Listerner: read -> receive, drop readinto
This prepares for creating a separate RemoteTransmissionRequest class
2020-09-28 17:22:00 -05:00
Jeff Epler 79ca430ddf Match: address -> id 2020-09-28 17:22:00 -05:00
Jeff Epler 59580d0f2d canio: Fix implementation bugs in atmel-sam 2020-09-22 09:36:29 -05:00
Jeff Epler 4869dbdc67 canio: rename from _canio
This reflects our belief that the API is stable enough to avoid incompatible changes during 6.x.
2020-09-21 16:44:26 -05:00
Jeff Epler 9e8f1820c8 canio.CAN: switch rx/tx, make both mandatory, move declarations around 2020-09-21 16:44:26 -05:00
Jeff Epler 7fd6cab2ac canio: Make both tx and rx (but not both) optional
.. loopback and silent come from the (optional) constructor parameters
not guessing based on the pin specification

.. docstring & comment improvements
2020-09-21 16:44:26 -05:00
Jeff Epler 44c5b2bbb1 Respond to review comments
Thanks @tannewt!
2020-09-21 16:44:26 -05:00
Jeff Epler 58b920ed97 fix whitespace 2020-09-21 16:44:26 -05:00
Jeff Epler 27cbb690e5 _canio: Add listener matching
Lightly tested:
 * no matches (catch-all)
 * standard address single address matches (even and odd positions)
 * standard address mask matches
 * only tested that extended doesn't match non-extended
2020-09-21 16:44:26 -05:00
Jeff Epler 635fcadb59 _canio.CAN: add error handling & bus state 2020-09-21 16:44:26 -05:00
Jeff Epler a2e1867f69 _canio: Minimal implementation for SAM E5x MCUs
Tested & working:

 * Send standard packets
 * Receive standard packets (1 FIFO, no filter)

Interoperation between SAM E54 Xplained running this tree and
MicroPython running on STM32F405 Feather with an external
transceiver was also tested.

Many other aspects of a full implementation are not yet present,
such as error detection and recovery.
2020-09-21 16:44:26 -05:00
Jeff Epler 183649aad8 samd: move mcu_find_pin_function to header
.. it'll be used in can as well as sdio
2020-09-21 16:44:07 -05:00
Dan Halbert 5116375604
Merge pull request #3436 from jepler/fix-spi-sercom4
samd: SPI: improve conditional code
2020-09-18 19:14:39 -04:00
Dan Halbert 23dd7c7c96
Merge pull request #3435 from jepler/fix-sdhc1
sdioio: fix code for the case where there is no SDHC1
2020-09-18 17:10:59 -04:00
Dan Halbert 550b42e4d3
Merge pull request #3434 from jepler/same54-disable-cpu-voltage
sam e54: disable microcontroller.cpu.voltage
2020-09-18 15:20:43 -04:00
Jeff Epler 45eec5b5a5 samd: SPI: improve conditional code
I recently misdiagnosed a "maybe-uninitialized" diagnostic as a bug in
asf4.  However, the problem was in our SPI code.

A special case for samr21 MCUs was being applied to same54p20a and possibly
other D5x/E5x MCUs, since the check was simply for pin PC19 existing at all.

Change the check to use the macro PIN_PC19F_SERCOM4_PAD0 which is only
defined if special function F of pin PC19 is SERCOM4 PAD0.

Reorganize the code a little bit so that brace-matching in editors is
not confused by the conditionalized code, including an unrelated change
for APA102_SCK's condition.

Revert the change to the Makefile that incorrectly attempted to silence
the diagnostic.
2020-09-17 18:30:22 -05:00
Jeff Epler c73182803d sdioio: fix code for the case where there is no SDHC1
.. it doesn't really make a difference (the old code created an empty
else{} statement) but this is more correct.
2020-09-17 18:29:31 -05:00
Jeff Epler 1b29ceaf1a sam e54: disable microcontroller.cpu.voltage
This hangs, and the usual workarounds didn't work.
2020-09-17 18:27:43 -05:00
Jeff Epler 1fc797132a
Merge pull request #3237 from DavePutz/issue3216
Issue#3216 - Needed an alternate way to check if background tasks were run
2020-09-16 08:47:33 -05:00
Dan Halbert 3c6af94fb3
Merge pull request #3384 from jepler/feather_m4_can
atmel-samd: add same51, feather_m4_can
2020-09-14 23:57:51 -04:00
DavePutz 2a2a8d6457
Merge pull request #28 from adafruit/main
Merge from adafruit/main
2020-09-14 16:50:40 -05:00
DavePutz 2eca4ee902
Update PulseIn.c 2020-09-14 11:04:45 -05:00
DavePutz c014ac3089
Reworked check for input taking too long 2020-09-14 10:54:57 -05:00
Jeff Epler e066448e36 atmel-samd: add same51, feather_m4_can
This is compile-tested, and requires updates in the related submodules:

https://github.com/adafruit/samd-peripherals/pull/35
https://github.com/adafruit/asf4/pull/37

This should not be merged until those can also be merged.
2020-09-08 13:06:45 -05:00
root 2690faec43 Moved checks for invalid pin to common-hal/microcontroller/Pin.c 2020-09-05 11:42:06 -05:00
Lucian Copeland 8021da08d3 Fix problematic whitespace on pulseout parameter errors 2020-08-27 11:07:47 -04:00
root fe0f79adce Making requested modifications 2020-08-21 20:38:19 -05:00
Scott Shawcroft a5b01f7361
Merge remote-tracking branch 'adafruit/main' into add_pwmio 2020-08-21 11:13:53 -07:00
root 6eae7ce78f Requested changes to pulsein 2020-08-20 16:57:00 -05:00
Scott Shawcroft 6857f98426
Split pulseio.PWMOut into pwmio
This gives us better granularity when implementing new ports because
PWMOut is commonly implemented before PulseIn and PulseOut.

Fixes #3211
2020-08-18 13:08:33 -07:00
Lucian Copeland da75445cd5 Style changes, reposition runtime errors 2020-08-18 11:42:06 -04:00
Lucian Copeland 0fc730bc5a Expand PulseOut API, debug cleanup 2020-08-14 16:36:02 -04:00
root c7b6e66426 Fixes for pulsein tick handling 2020-08-05 10:03:20 -05:00
Jeff Epler 93b373d617 "pop from empty %q"
Saves 12 bytes code on trinket m0
2020-08-04 18:42:09 -05:00
Jeff Epler c849b781c0 Combine 'index out of range' messages 2020-08-04 14:45:45 -05:00
Jeff Epler dddd25a776 Combine similar strings to reduce size of translations
This is a slight trade-off with code size, in places where a "_varg"
mp_raise variant is now used.  The net savings on trinket_m0 is
just 32 bytes.

It also means that the translation will include the original English
text, and cannot be translated.  These are usually names of Python
types such as int, set, or dict or special values such as "inf" or
"Nan".
2020-08-04 13:34:29 -05:00
root 9203a77804 Turn off interrupts while in handler 2020-08-03 11:31:12 -05:00
root 12b81618a3 Changes for getting supervisor ticks 2020-08-01 13:27:02 -05:00
Dan Halbert e5e132a364 add blm_badge; add CIRCUITPY_AUDIOBUSIOIO_I2SOUT 2020-07-28 11:49:54 -04:00
Jeff Epler 1df48176ce supervisor: factor supervisor_background_tasks from sundry ports 2020-07-15 11:49:44 -05:00
Scott Shawcroft 51c888d4be
Merge pull request #3003 from Flameeyes/master
License tagging according to REUSE specifications.
2020-07-13 16:28:49 -07:00
Diego Elio Pettenò 34b4993d63 Add license to some obvious files. 2020-07-06 19:16:25 +01:00
DavePutz 94d90742dd
Implementation of RTC continuous synchronization during pulsein
Flags and code to implement RTC continuous synchronization during pulsein
2020-07-04 21:15:38 -05:00
Jeff Epler fcddfd0f39
Merge pull request #3083 from tannewt/esp32s2_busio
Add busio support for the ESP32-S2
2020-07-01 21:02:08 -05:00
Jeff Epler c5db97c50f atmel-sam: sdio: disable debug prints by default 2020-06-26 13:16:16 -05:00
Jeff Epler f496c0b58d atmel-samd: Add SDIO SD card interface 2020-06-26 11:50:42 -05:00
Jeff Epler 1d2cc0b968 I2CPeripheral: Rename class and its module
This is an incompatible change.
2020-06-25 11:44:19 -05:00
Scott Shawcroft c5fa9730a8
Compiles! 2020-06-24 12:47:59 -07:00
Scott Shawcroft a26102607e
Add UART support 2020-06-24 12:47:58 -07:00
Jeff Epler da733c01da atmel-samd: Add support for SAM E54 family MCUs
This introduces the new macro SAM_D5X_E5X.  This is mostly the same
as SAMD51 before, except in a few places where a special case for
SAME54 is required
2020-06-23 10:41:48 -05:00
Scott Shawcroft 54b66d9484
Merge pull request #3052 from dhalbert/samd51-voltage-check-delay
delay 1ms on SAMD51 when reading processor voltage
2020-06-22 14:29:43 -07:00
Jeff Epler a770b5a919 never_reset_pin: Move pin validity check before first use of pin number 2020-06-22 10:45:27 -05:00
Jeff Epler a580f0f1c4 _pew: move to common-hal
I noticed that this code was referring to samd-specific functionality,
and isn't enabled except in one samd board (pewpew10).  Move it.

There is incomplte support for _pew in mimxrt10xx which then caused build
errors; adding a #if guard to check for _pew being enabled fixes it.
The _pew module is not likely to be important on mimxrt but I'll leave the
choice to remove it to someone else.
2020-06-22 10:45:27 -05:00
Dan Halbert 1687c8b1e3 delay 1ms on SAMD51 when reading processor voltage 2020-06-19 15:25:04 -04:00
Diego Elio Pettenò dd5d7c86d2 Fix up end of file and trailing whitespace.
This can be enforced by pre-commit, but correct it separately to make it easier to review.
2020-06-03 10:56:35 +01:00
Dan Halbert 3574670226
Merge pull request #2931 from tannewt/esp32s2_digitalio
Finish digitalio and pin use tracking for ESP32S2
2020-05-26 19:18:45 -04:00
DavePutz 2e05f628f0
Add an increment to tcc_refcount to allow deinits to work properly 2020-05-21 11:08:26 -05:00
Scott Shawcroft ba724fffb4
Merge remote-tracking branch 'adafruit/master' into esp32s2_digitalio 2020-05-20 10:48:27 -07:00
Scott Shawcroft fd0420d432
Update digitalio api for other ports 2020-05-20 09:23:42 -07:00
Scott Shawcroft 2c2b53303d
Merge pull request #2837 from k0d/serial-debug
Add support for a debug console, such as ST-Link VCP.
2020-05-18 18:13:31 -07:00
Mark Olsson 007c92ee6a Enable showing the console on a debug uart 2020-05-19 02:02:52 +02:00
Daniel Pollard ee2cb703c8 merged master 2020-05-12 14:41:28 +10:00
warriorofwire eb3d5fa453 ujson: do not eat trailing whitespace
Ujson should only worry about whitespace before JSON.  This becomes apparent when you are using MP stream protocol to read directly from input buffers.

When you attempt to read(1) on a UART (and possibly other protocols) you have to wait for either the byte or the timeout.

Fixes:
- Waiting for a timeout after you have completed reading a correct and complete JSON off the input.
- Raising an OSError after reading a correct and complete JSON off the input.
- Eating more data than semantically owned off the input buffer.
- Blocking to start parsing JSON until the entire JSON body has been loaded into a potentially large, contiguous Python object.

Code you would write before:
```
line = board_busio_uart_port.read_line()
json_dict = json.loads(line)
```
or reaching for fixed buffers and swapping them around in Python.

Code that did not work before that does now:
```
json_dict = json.load(board_busio_uart_port)
```

- This removes the need for intermediate copies of data when reading JSON from micropython stream protocol inputs.
- It also increases total application speed by parsing JSON concurrently with receiving on boards that read from UART via DMA.
- It simplifies code that users write while improving their apps.
2020-05-10 20:45:42 -07:00
Daniel Pollard bfa5cd9c13 refactor countio based on feedback 2020-05-05 15:23:38 +10:00
Scott Shawcroft bebf27e733
Merge remote-tracking branch 'adafruit/master' into lower_power
This isn't perfect and needs a bit more testing.
2020-04-20 18:25:13 -07:00
Jeff Epler 5fcc6d6286 RGBMatrix: finish renaming from Protomatter
This gets all the purely internal references.  Some uses of
protomatter/Protomatter/PROTOMATTER remain, as they are references
to symbols in the Protomatter C library itself.
2020-04-17 18:44:07 -05:00
Jeff Epler 3d6258f63d Rename Protomatter -> RGBMatrix
This is a quick rename, it changes the user-facing names but not the
internal names of things.
2020-04-17 18:43:57 -05:00
Jeff Epler a32337718d Rename _protomatter -> protomatter
I originally believed that there would be a wrapper library around it,
like with _pixelbuf; but this proves not to be the case, as there's
too little for the library to do.
2020-04-17 18:43:57 -05:00
Scott Shawcroft b580b34cbf
Merge remote-tracking branch 'adafruit/master' into lower_power 2020-04-14 17:14:44 -07:00
Jeff Epler 23bced26da samd: actually disable protomatter timer
Just setting the timer handler to NO_INTERRUPT doesn't stop the
interrupt from occurring.
2020-04-14 18:24:58 -05:00
Jeff Epler 09dc46a984 Add Protomatter and FramebufferDisplay 2020-04-14 18:24:54 -05:00
Scott Shawcroft d0a25ca9ac
Tweaks based on dhalberts feedback 2020-04-08 10:49:46 -07:00
Scott Shawcroft c0ba2a839f
Updates based on feedback from jepler 2020-04-06 16:03:31 -07:00
Scott Shawcroft e99cf6e441
Rework sleep timing
It didn't account for background task time and could end up
sleeping for way longer than it should because the RTC compare time
had already passed.
2020-04-03 18:07:56 -07:00
Scott Shawcroft 46af4bdd0e
Fix SAMD21 PulseIn 2020-04-02 17:35:52 -07:00
Scott Shawcroft d9e68156b2
fix up SAMD21 sleep 2020-03-17 12:10:35 -07:00
Scott Shawcroft 76ca13b6ed
Fix SAMD51 pulsein 2020-03-13 17:21:15 -07:00
Scott Shawcroft df5be65423
Update FrequencyIn for new clock API. 2020-03-13 16:12:52 -07:00
Scott Shawcroft 48b5f2a384
Initial work on SAMD 2020-03-13 11:16:41 -07:00
Dan Halbert 8435935429 update uses of assert_pin_free; remove redundant checks 2020-02-29 15:37:32 -05:00
Dan Halbert b6206406de new pin validation routines; don't use mp_const_none if NULL will do 2020-02-28 23:43:04 -05:00
Dave Marples 24405cabaf Edits as a result of review 2020-02-19 00:07:01 +00:00
Dave Marples 490a808bf6 Addition of stubs for rs485/CTS/RTS handling on non-implemented chips 2020-02-18 23:16:40 +00:00
Dan Halbert 005c4caf8c fix function defs for compiler 2020-02-07 10:32:37 -05:00
Dan Halbert 857d8ab40a improve time.monotonic_ns() accuracy from ms to us 2020-02-07 10:02:50 -05:00
Scott Shawcroft 5d24ade5c9
Tweak error messages to reduce code size. 2020-01-29 17:32:07 -08:00
Jeff Epler cb6193bbc7 samd: When possible, use one DMA channel for stereo AudioOut
.. the documentation doesn't make this clear, but in practice it works
to write both of the DATABUF registers at the same time.  This should
also reduce the amount of wear and tear DMA puts on the system, as the
number of transfers is cut in half.  (the number of bytes transferred
remains the same, though)

In principle, this could cover all stereo cases if audio_dma_convert_signed
also learned to 16-bit extend and swap values.  However, this is the
case that matters for stereo mp3 playback on PyGamer.

Testing performed: Listened to some tracks with good stereo separation.
2020-01-26 15:36:24 -06:00
Dan Halbert 2a75196aa3 merge from adafruit/circuitpython 2020-01-13 18:15:32 -05:00
Dan Halbert 189f2d5f07 Make requiring I2C pullups be optional 2020-01-09 17:31:50 -05:00
Dan Halbert 242d572470 wip 2020-01-03 10:24:07 -05:00
Dan Halbert ae64a669dd address review comments 2019-12-11 15:43:06 -05:00
Dan Halbert 68ae47907c merge from upstream 2019-12-10 21:04:46 -05:00
Jeff Epler 1905d0746d samd: neopixel: Fix neopixels after #2297
This adapts the "inline assembler" code from the UF2 bootloader, which
in turn is said to be adapted from the arduino neopixel library.

This requires the cache remain ON when using M0, and be turned OFF on M4
(determined by trial and error)

Testing performed on a Metro M4:
 * measured timings using o'scope and found all values within
   datasheet tolerance.
 * Drove a string of 96 neopixels without visible glitches
 * on-board neopixel worked

Testing performed on a Circuit Playground Express (M0):
 * Color wheel code works on built-in neopixels
 * Color wheel code works on 96 neopixel strip

As a bonus, this may have freed up a bit of flash on M0 targets. (2988 ->
3068 bytes free on Trinket M0)

Closes: #2297
2019-12-07 19:19:45 -06:00
Dan Halbert d628d2a261 atmel-samd working 2019-12-06 15:18:20 -05:00
Dan Halbert 40434d6919 wip 2019-12-05 22:45:53 -05:00
Jeff Epler 95d9c49e43 Merge remote-tracking branch 'origin/master' into tick-refactor 2019-11-29 11:27:09 -06:00
Dan Halbert b32a9192df make UART.write be blocking on SAMD; add timeout property 2019-11-27 13:05:29 -05:00
Jeff Epler 7f744a2369 Supervisor: move most of systick to the supervisor
This code is shared by most parts, except where not all the #ifdefs
inside the tick function were present in all ports.  This mostly would
have broken gamepad tick support on non-samd ports.

The "ms32" and "ms64" variants of the tick functions are introduced
because there is no 64-bit atomic read.  Disabling interrupts avoids
a low probability bug where milliseconds could be off by ~49.5 days
once every ~49.5 days (2^32 ms).

Avoiding disabling interrupts when only the low 32 bits are needed is a minor
optimization.

Testing performed: on metro m4 express, USB still works and
time.monotonic_ns() still counts up
2019-11-18 11:01:23 -06:00
Hierophect 81223c76bd revert error 2019-11-15 13:04:25 -05:00
Hierophect 2c6781f74d move neopixel_in_use flag to shared-bindings 2019-11-15 12:59:52 -05:00
Hierophect de5691acf5 Add never_reset and reset to pin common hal, adjust files 2019-11-15 12:47:00 -05:00
Dan Halbert 85a648224f Check for no pullups on I2C on nrf; give arduino nano 33 ble two I2C devices 2019-11-02 22:47:03 -04:00
Thea Flowers 4b742f88d9
Fix spelling 2019-10-25 10:50:27 -07:00
Thea Flowers 4fdf518251
Track unadjusted PWM duty cycle to avoid accumulating conversion errors
Fixes #2086

When the frequency of a `PWMOut` is change it re-sets the PWM's duty cycle as
well, since the registers have to be re-calculated based on the new frequency.
Unfortunately, `common_hal_pulseio_pwmout_get_duty_cycle`
will return a value very close to, but not exactly, the value passed to `common_hal_pulseio_pwmout_set_duty_cycle`. If the frequency is modified
without the calling code also re-setting the duty cycle then the duty cycle
will decay over time. This fixes that problem by tracking the unadjusted duty
cycle and re-setting the duty cycle to that value when the frequency is changed.
2019-10-23 14:34:14 -07:00
Dan Halbert 7b79ac3739 Parameterize linker script 2019-10-20 23:50:12 -04:00
Dan Halbert c1ab2486f9 return chip vcc value 2019-10-12 15:42:15 -04:00
jepler 61698eb5d8 AnalogOut / AudioOut: Copy settings from Arduino
Make changes in asf4_conf even though I think in these cases the
"peripherals" submodule is running the show.

Arduino clocks the DAC at 12MHz but uses the CCTRL setting for
clocking < 1.2MHz (100kSPS).

A fresh clock (6) is allocated for the new 12MHz clock.  This matches
the Arduino value, though not the GCLK index.

Modify other settings to more closely resemble Arduino.

In AudioOut, actually clock the waveform data from the timer we set up
for this purpose.

This gives good waveforms when setting AnalogOut full-scale in a loop,
but the rise/fall of waveforms that come from AudioOut are still erratic.
Weirdly, if AudioOut limits its range even slightly (e.g., to 1000..64000)
then the erratic

Note that this will require https://github.com/adafruit/samd-peripherals/pull/26
to be accepted for the submodule update here to work.
2019-09-15 11:30:49 -05:00
Scott Shawcroft 8066810abb
Merge pull request #2091 from jepler/samd-dma-tracking
Samd dma tracking
2019-09-05 11:27:59 -07:00
jepler 30a9346373 samd: audio_dma: Track channel allocation
Previously, we depended on allocated channels to always be
"dma_channel_enabled".  However, (A) sometimes, many operations
would take place between find_free_audio_dma_channel and
audio_dma_enable_channel, and (B) some debugging I did led me to believe
that "dma_channel_enabled" would become false when the hardware ended
a scheduled DMA transaction, but while a CP object would still think it
owned the DMA channel.

((B) is not documented in the datasheet and I am not 100% convinced that
my debugging session was not simply missing where we were disabling the
channel, but in either case, it shows a need to directly track allocated
separately from enabled)

Therefore,
 * Add audio_dma_{allocate,free}_channel.
   * audio_dma_free_channel implies audio_dma_disable_channel
   * track via a new array audio_dma_allocated[]
 * clear all allocated flags on soft-reboot
 * Convert find_free_audio_dma_channel to audio_dma_allocate_channel
   * use audio_dma_allocated[] instead of dma_channel_enabled() to check
     availability
 * remove find_free_audio_dma_channel
 * For each one, find a matching audio_dma_disable_channel to convert
   to audio_dma_free_channel

Closes: #2058
2019-08-28 17:00:22 -05:00
jepler 0b00787b4d samd: AudioOut: ensure stopped before deinit
.. otherwise, a sequence like
    >>> a = audioio.AudioOut(board.A0)
    >>> a.play(sample, loop=True)
    >>> a.deinit()
would potentially leave related DMA channel(s) active.
2019-08-28 16:43:55 -05:00
Scott Shawcroft 0876d5c4ad
Disable bitbangio on Itsy M0
Also, switch CIRCUITPY_BITBANG_APA102 to makefile setting so it can alter included files
2019-08-27 15:21:47 -07:00