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4132 Commits

Author SHA1 Message Date
iabdalkader
2ebc538d63 stm32/dma: Enable H7 DMA descriptors. 2018-03-20 23:24:45 +11:00
Jeff Epler
dddfad6594 UART: Fix maybe-uninitialized diagnostic 
The following error occurs when building with gcc 5.4.1 (debian stretch):

common-hal/busio/UART.c:104:83: error: 'sercom_index' may be used uninitialized in this function [-Werror=maybe-uninitialized]
                   sercom_insts[rx->sercom[j].index]->USART.CTRLA.bit.ENABLE == 0) ||

It may be related to the addition of rx-only UARTs; gcc is unable
to infer the intended relationship between have_tx and sercom_index
being set (I am still not entirely confident of it myself)
 2018-03-19 20:40:04 -05:00
Damien George
0abbafd424 stm32/can: Add "list" param to CAN.recv() to receive data inplace. 
This API matches (as close as possible) how other pyb classes allow inplace
operations, such as pyb.SPI.recv(buf).
 2018-03-19 15:12:24 +11:00
Damien George
e37b8ba5a5 stm32: Use STM32xx macros instead of MCU_SERIES_xx to select MCU type. 
The CMSIS files for the STM32 range provide macros to distinguish between
the different MCU series: STM32F4, STM32F7, STM32H7, STM32L4, etc.  Prefer
to use these instead of custom ones.
 2018-03-17 10:42:50 +11:00
Damien George
06aa13c350 stm32/can: Use explicit byte extraction instead of casting to word ptr. 
Casting the Data array to a uint32_t* leads to strict aliasing errors on
older gcc compilers.
 2018-03-16 23:52:13 +11:00
Damien George
a25e6c6b65 stm32/can: Add CAN.info() method to retrieve error and tx/rx buf info. 2018-03-16 18:28:35 +11:00
Damien George
d7e67fb1b4 stm32/can: Add CAN.state() method to get the state of the controller. 
This is useful for monitoring errors on the bus and knowing when a restart
is needed.
 2018-03-16 17:10:41 +11:00
Kattni
05e2a7d1ac Added digital pin assignments 2018-03-15 20:28:09 -04:00
Damien George
1272c3c65d stm32/can: Add CAN.restart() method so controller can leave bus-off. 2018-03-15 17:29:30 +11:00
Damien George
823ca03008 stm32/can: Add "auto_restart" option to constructor and init() method. 2018-03-15 17:17:33 +11:00
Damien George
1608c4f5be stm32/can: Use enums to index keyword arguments, for clarity. 2018-03-15 17:15:41 +11:00
Damien George
2036196d71 stm32/can: Improve can.recv() so it checks for events, eg ctrl-C. 
This patch provides a custom (and simple) function to receive data on the
CAN bus, instead of the HAL function.  This custom version calls
mp_handle_pending() while waiting for messages, which, among other things,
allows to interrupt the recv() method via KeyboardInterrupt.
 2018-03-15 16:34:07 +11:00
Damien George
22a9158ced stm32/boards/STM32L476DISC: Enable CAN peripheral. 
This board allows to test CAN support on the L4 series.
 2018-03-15 16:32:11 +11:00
jerryneedell
04b4026666
fix dotstar for Gemma_M0 in CP3.0 
Uncomment lines in mpconfigport.h for gemma_m0 to allow dotstar access.  same issue as #514 for trinket_m0
 2018-03-14 21:28:56 -04:00
Dan Halbert
f173d45941
Merge pull request #678 from tannewt/m0_no_timer_fix 
Correct NO_TIMER index value for SAMD21.
 2018-03-14 15:04:39 -04:00
Scott Shawcroft
88aa0e2660 Remove SERCOM pointers from pin data structure because index is 
enough.

This saves 380 bytes on the Arduino Zero build. (More pins ==
more savings.)
 2018-03-14 11:14:32 -07:00
Scott Shawcroft
7a3f86d184 Check usb_busy up front in usb background function. 
Waiting to do so risks accidentally queueing another response.

Hopefully fixes #655 but we'll let @jerryneedell confirm.
 2018-03-14 10:32:41 -07:00
Damien George
34e224a4af esp32/machine_uart: Return None from UART read if no data is available. 
This is instead of returning an empty bytes object, and matches how other
ports handle non-blocking UART read behaviour.
 2018-03-14 13:18:43 +11:00
Scott Shawcroft
c37ade9aeb Correct NO_TIMER index value for SAMD21. 
We check validity by ensuring it's lower than the total number of
timers. 0 is a terrible number for the NO_TIMER value because its
valid even though it shouldn't be.

Fixes https://github.com/adafruit/Adafruit_CircuitPython_SimpleIO/issues/29
 2018-03-13 12:44:00 -07:00
Dan Halbert
b64d568267
Merge pull request #677 from tannewt/usb_active_read 
Move usb read finish into interrupt.
 2018-03-13 15:16:40 -04:00
Scott Shawcroft
8157248189 Move usb read finish into interrupt. 
Having the `active_read = false` in the background function left
a chance that a new_write occurs before active_read is set to false.

In that case, we'll read the appropriate data rather than write it
and never clear the active write.

Hopefully fixes #655.
 2018-03-13 11:29:29 -07:00
vesperk38
945f2f5aa1
line 172 has a typo correct 2MB to 4MB 2018-03-13 13:42:29 -04:00
Damien George
033c32e694 esp8266/esp_mphal.h: Fix I2C glitching by using input mode for od_high. 
Certain pins (eg 4 and 5) seem to behave differently at the hardware level
when in open-drain mode: they glitch when set "high" and drive the pin
active high for a brief period before disabling the output driver.  To work
around this make the pin an input to let it float high.
 2018-03-12 12:45:09 +11:00
Radomir Dopieralski
81ab2526e4 gamepad: Enable the gamepad module for express boards in 3.x 2018-03-11 13:39:54 +01:00
Damien George
1345093401 stm32/qspi: Do an explicit read instead of using memory-mapped mode. 
Using an explicit read eliminates the need to invalidate the D-cache after
enabling the memory mapping mode, which takes additional time.
 2018-03-11 18:28:48 +11:00
sommersoft
8c9cc6b7c0 nrf: changed Status to Runtime; instituted runtime singleton 2018-03-10 01:07:17 +00:00
Scott Shawcroft
e7fc0b6aa7 Use DMA for long SPI transactions including those to the SPI Flash. 
QSPI is not currently working so its commented out.

This is progress on #652.
 2018-03-09 12:45:46 -08:00
Damien George
0d5bccad11 stm32/storage: Provide support for a second block device. 2018-03-10 01:03:27 +11:00
Damien George
bb3359f357 stm32/boards/STM32L476DISC: Provide SPI-flash bdev config. 
This board shows how to configure external SPI flash as the main storage
medium.  It uses software SPI.
 2018-03-10 00:59:43 +11:00
Damien George
626d6c9756 stm32/storage: Introduce MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE cfg. 
This config variable controls whether to support storage on the internal
flash of the MCU.  It is enabled by default and should be explicitly
disabled by boards that don't want internal flash storage.
 2018-03-10 00:59:43 +11:00
Damien George
d1c4bd69df stm32/storage: Remove all SPI-flash bdev cfg, to be provided per board. 
If a board wants to use SPI flash for storage then it must now provide the
configuration itself, using the MICROPY_HW_BDEV_xxx macros.
 2018-03-10 00:59:43 +11:00
Damien George
1803e8ef22 stm32/storage: Make spi_bdev interface take a data pointer as first arg. 
This allows a board to have multiple instances of the SPI block device.
 2018-03-10 00:59:43 +11:00
Damien George
1e4caf0b1e stm32/storage: Merge all misc block-dev funcs into a single ioctl func. 
It makes it cleaner, and simpler to support multiple different block
devices.  It also allows to easily extend a given block device with new
ioctl operations.
 2018-03-10 00:59:43 +11:00
Damien George
a739b35a96 drivers/memory/spiflash: Change to use low-level SPI object not uPy one. 
This patch alters the SPI-flash memory driver so that it uses the new
low-level C SPI protocol (from drivers/bus/spi.h) instead of the uPy SPI
protocol (from extmod/machine_spi.h).  This allows the SPI-flash driver to
be used independently from the uPy runtime.
 2018-03-10 00:59:43 +11:00
Damien George
58ebeca6a9 drivers/bus: Pull out software SPI implementation to dedicated driver. 
This patch takes the software SPI implementation from extmod/machine_spi.c
and moves it to a dedicated file in drivers/bus/softspi.c.  This allows the
SPI driver to be used independently of the uPy runtime, making it a more
general component.
 2018-03-10 00:59:43 +11:00
iabdalkader
ad2a6e538c stm32/system_stm32: Fix CONFIG_RCC_CR_2ND value to use bitwise or. 2018-03-09 23:37:09 +11:00
Tom Collins
993f4345c0 stm32/usbd_conf.h: Add include of stdint.h to fix compilation issues. 2018-03-09 16:08:08 +11:00
Bryan Siepert
942b7ffbe0 fixes hardware dotstar support for 3.0 and addresses issue #514 2018-03-08 20:39:47 -08:00
Damien George
eb56efb434 stm32: Remove startup_stm32.S, now provided in boards/ for each MCU. 2018-03-09 15:14:24 +11:00
iabdalkader
66748aaf60 stm32/Makefile: Use separate startup file for each MCU series. 2018-03-09 15:14:17 +11:00
iabdalkader
88157715db stm32/boards: Add startup_stm32l4.s for L4 series specific startup. 2018-03-09 15:14:10 +11:00
iabdalkader
e3b81f5712 stm32/boards: Add startup_stm32f4.s for F4 series specific startup. 2018-03-09 15:14:03 +11:00
iabdalkader
d84f1a90cc stm32/boards: Add startup_stm32f7.s for F7 series specific startup. 2018-03-09 15:13:56 +11:00
iabdalkader
0f5cce7753 stm32/boards: Add startup_stm32h7.s for H7 series specific startup. 2018-03-09 15:13:13 +11:00
iabdalkader
bbf19bb64e stm32/main: Enable D2 SRAM1/2/3 clocks on H7 MCUs. 2018-03-09 15:12:58 +11:00
iabdalkader
61d463ad07 stm32/mpconfigboard_common: Add STM32H7 common configuration. 2018-03-09 15:12:44 +11:00
iabdalkader
6d3f42f713 stm32/extint: Add EXTI support for H7 MCUs. 2018-03-09 15:12:34 +11:00
iabdalkader
711f817c2a stm32/rtc: Add RTC support for H7 MCUs. 2018-03-09 15:12:29 +11:00
iabdalkader
0e51e4d139 stm32/dma: Add DMA support for H7 MCUs. 2018-03-09 15:12:19 +11:00
iabdalkader
fe29419c10 stm32/stm32_it: Add support for H7 MCUs. 2018-03-09 15:12:01 +11:00