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circuitpython/ports/mimxrt
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robert-hh f45412793e mimxrt/machine_spi: Add the SPI class to the machine module. 
This class supports SPI bus controller mode, with blocking transfers.

SPI device numbers start at 0, to comply with the pinout of the Teensy
boards.  With the configured clock frequency the fastest baud rate is
33MHz.  For messages longer 16 bytes DMA is used.  The class uses the
existing framework with extmod/machine_spi.c.

Extended driver options:

- drive=n with n being between 1 and 6 or PIN.POWER_1 to PIN.POWER_6.
  Since the pins used by the SPI are fixed, no Pin settings can be made.
  Thus the drive option is added allowing to control ringing and crosstalk
  on the connection.

- gap_ns=nnnnn is the time between sent data items in a frame given in ns.
  Default is 2 clock cycles.
2021-06-26 22:14:47 +10:00
..
boards
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
hal
mimxrt: Enable many Python and some extmod features.
2021-06-04 00:38:18 +10:00
modules
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
board_init.c
mimxrt/machine_adc: Add the ADC class to the machine module.
2021-06-04 00:51:58 +10:00
dma_channel.c
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
dma_channel.h
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
led.c
mimxrt: Implement machine.Pin class.
2021-05-26 00:12:42 +10:00
led.h
mimxrt: Implement machine.Pin class.
2021-05-26 00:12:42 +10:00
machine_adc.c
mimxrt/machine_adc: Add the ADC class to the machine module.
2021-06-04 00:51:58 +10:00
machine_led.c
mimxrt: Add initial impl of machine.LED class, and basic pin support.
2020-06-05 11:47:48 +10:00
machine_pin.c
mimxrt/machine_pin: Implement pin.irq() functionality.
2021-06-16 01:42:10 +10:00
machine_rtc.c
mimxrt: Move calc_weekday helper function to timeutils.
2021-06-25 10:28:32 +10:00
machine_spi.c
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
machine_timer.c
mimxrt/machine_timer: Leave the Timer clock source at IPG clock.
2021-06-03 13:03:02 +10:00
machine_uart.c
mimxrt/machine_uart: Add the UART class to the machine module.
2021-06-16 01:21:15 +10:00
main.c
mimxrt/machine_pin: Implement pin.irq() functionality.
2021-06-16 01:42:10 +10:00
Makefile
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
mimxrt_flash.c
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
modmachine.c
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
modmachine.h
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
modmimxrt.c
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
modmimxrt.h
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
moduos.c
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
modutime.c
mimxrt: Move calc_weekday helper function to timeutils.
2021-06-25 10:28:32 +10:00
mpconfigport.h
mimxrt/machine_pin: Implement pin.irq() functionality.
2021-06-16 01:42:10 +10:00
mphalport.c
mimxrt/modutime: Extend the time module.
2021-06-16 01:50:09 +10:00
mphalport.h
mimxrt/modutime: Extend the time module.
2021-06-16 01:50:09 +10:00
pin.c
mimxrt: Implement machine.Pin class.
2021-05-26 00:12:42 +10:00
pin.h
mimxrt/machine_pin: Implement pin.irq() functionality.
2021-06-16 01:42:10 +10:00
qstrdefsport.h
mimxrt: Add new, minimal port to NXP i.MX RT series CPUs.
2020-03-11 15:34:13 +11:00
README.md
mimxrt: Implement machine.Pin class.
2021-05-26 00:12:42 +10:00
ticks.c
mimxrt: Improve ticks and sleep functions using GPT.
2021-05-18 22:36:32 +10:00
ticks.h
mimxrt: Improve ticks and sleep functions using GPT.
2021-05-18 22:36:32 +10:00
tusb_config.h
ports: Update to build with new tinyusb.
2021-02-12 12:50:36 +11:00
tusb_port.c
mimxrt: Implement machine.Pin class.
2021-05-26 00:12:42 +10:00

README.md

Port of MicroPython to NXP iMX RT 10xx

Currently supports Teensy 4.0 and the i.MX RT1010 EVK board.

Features:

  • REPL over USB VCP
  • machine.Pin

Known issues:

  • pyboard.py doesn't work with files larger than 64 bytes
  • machine.Pin class currently does not support GPIOMUX option of i.MX RT101x variants

TODO:

  • Enable TCM
  • Peripherals (LED, Timers, etc)