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circuitpython/ports/mimxrt
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robert-hh e0b97013d0 mimxrt/hal/pwm_backport: Make PWM symmetric, and round division calcs. 
Ensure the symmetry of PWM: the duty rate of X and Q channels was not 50%,
when it should have been.  That is evident at high frequencies, like 15Mhz
or 37.5 MHz.  At low frequencies the deviation mattered less.  The A/B
channels were fine.

Also round up or down non-integer division factors. Before, always the
floor value was used.
2022-03-08 23:11:17 +11:00
..
boards
mimxrt/boards: Support using an optional board-specific manifest.py.
2022-03-08 23:10:41 +11:00
hal
mimxrt/hal/pwm_backport: Make PWM symmetric, and round division calcs.
2022-03-08 23:11:17 +11:00
lwip_inc
mimxrt: Re-Enable eth checksum creation by HW.
2021-12-14 08:07:52 +01:00
mbedtls
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
modules
mimxrt/sdcard: Implement SDCard driver.
2021-09-07 20:45:33 +02:00
board_init.c
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
dma_channel.c
mimxrt/dma_channel: Fix the DMA channel management.
2021-10-25 15:50:44 +11:00
dma_channel.h
mimxrt/machine_spi: Add the SPI class to the machine module.
2021-06-26 22:14:47 +10:00
eth.c
mimxrt/eth: Avoid a race condition for Ethernet.
2022-03-08 23:11:01 +11:00
eth.h
mimxrt: Add a driver for the DP83848 PHY device.
2021-12-14 08:07:52 +01:00
fatfs_port.c
mimxrt/sdcard: Implement SDCard driver.
2021-09-07 20:45:33 +02:00
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_bitstream.c
mimxrt: Fix cycle counter for time.ticks_cpu() and machine.bitstream().
2021-10-25 15:50:44 +11:00
machine_i2c.c
mimxrt: Replace Pin-config constants by a function call.
2022-01-27 16:53:30 +11:00
machine_led.c
mimxrt/machine_led: Use mp_raise_msg_varg helper.
2021-07-15 00:12:41 +10:00
machine_pin.c
mimxrt/machine_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
machine_pwm.c
mimxrt/machine_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
machine_rtc.c
all: Update to point to files in new shared/ directory.
2021-07-12 17:08:10 +10:00
machine_sdcard.c
mimxrt/sdcard: Implement SDCard driver.
2021-09-07 20:45:33 +02:00
machine_spi.c
mimxrt/machine_spi: Add omitted GPIO config.
2022-03-08 23:08:30 +11:00
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_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
machine_wdt.c
mimxrt/modmachine: Implement machine.WDT() and machine.reset_cause().
2021-10-25 15:43:56 +11:00
main.c
py/runtime: Allow initialising sys.path/argv with defaults.
2021-12-18 00:08:07 +11:00
Makefile
mimxrt/boards: Add board files for MIMXRT1015 and MIMXRT1015_EVK.
2022-03-08 23:08:44 +11:00
mimxrt_flash.c
mimxrt: Use -Og instead of -O0 for DEBUG builds.
2021-12-14 08:07:52 +01:00
mimxrt_sdram.c
mimxrt/sdram: Add SDRAM support.
2021-10-22 08:23:24 +02:00
modmachine.c
mimxrt: Refactor the reading of the machine id.
2021-12-14 08:07:52 +01:00
modmachine.h
mimxrt: Support PWM using the FLEXPWM and QTMR modules.
2021-11-24 13:48:27 +11:00
modmimxrt.c
mimxrt: Add dht_readinto() to the mimxrt module, and freeze dht.py.
2021-10-25 23:49:28 +11:00
modmimxrt.h
mimxrt: Add flash storage support with VFS and littlefs filesystem.
2021-06-01 23:42:57 +10:00
moduos.c
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
modutime.c
all: Update to point to files in new shared/ directory.
2021-07-12 17:08:10 +10:00
mpconfigport.h
mimxrt/eth: Avoid a race condition for Ethernet.
2022-03-08 23:11:01 +11:00
mphalport.c
mimxrt/boards: Add board files for MIMXRT1015 and MIMXRT1015_EVK.
2022-03-08 23:08:44 +11:00
mphalport.h
mimxrt: Refactor the reading of the machine id.
2021-12-14 08:07:52 +01:00
mpnetworkport.c
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
network_lan.c
mimxrt: Add a driver for the DP83848 PHY device.
2021-12-14 08:07:52 +01:00
pendsv.c
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
pendsv.h
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
pin.c
mimxrt/machine_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
pin.h
mimxrt/machine_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
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: Extend the help() message and README.md.
2021-10-25 23:52:08 +11:00
sdcard.c
mimxrt/machine_pin: Change pin drive constants to DRIVE_x naming.
2022-03-08 22:30:33 +11:00
sdcard.h
mimxrt/sdcard: Implement SDCard driver.
2021-09-07 20:45:33 +02:00
systick.c
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
systick.h
mimxrt/eth: Add LAN support and integrate the network module.
2021-10-25 15:14:26 +11:00
ticks.c
mimxrt: Enable ticks_cpu at boot time for NDEBUG builds only.
2021-12-14 08:07:52 +01:00
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: Add USB ID elements.
2022-01-27 17:05:34 +11:00

README.md

Port of MicroPython to NXP iMX RT 10xx

Currently supports Teensy 4.0, Teensy 4.1, and the MIMXRT1010_EVK, MIMXRT1020_EVK, MIMXRT1050_EVK, MIMXRT1060_EVK and MIMXRT1064_EVK boards.

Features:

  • REPL over USB VCP
  • machine.ADC
  • machine.I2C
  • machine.LED
  • machine.Pin
  • machine.PWM
  • machine.RTC
  • machine.SDCard
  • machine.SPI
  • machine.Signal
  • machine.SoftI2C
  • machine.SoftSPI
  • machine.Timer
  • machine.UART
  • LFS2 file system at the internal Flash
  • SDCard support (not on MIMXRT1010_EVK)
  • Ethernet (not on Teensy 4.0 and MIMXRT1010_EVK)

Known issues:

TODO:

  • More peripherals (Counter, I2S, CAN, etc)
  • More Python options