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circuitpython/ports/mimxrt
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MikeTeachman 1f6cb8f047 mixmrt/machine_i2s: Add I2S protocol support. 
This commit adds support for machine.I2S on the mimxrt port.  The I2S API
is consistent with the existing stm32, esp32, and rp2 implementations.

I2S features:
- controller transmit and controller receive
- 16-bit and 32-bit sample sizes
- mono and stereo formats
- sampling frequencies from 8kHz to 48kHz
- 3 modes of operation:
  - blocking
  - non-blocking with callback
  - uasyncio
- configurable internal buffer
- optional MCK

Tested with the following development boards:
- MIMXRT1010_EVK, MIMXRT1015_EVK, MIMXRT1020_EVK, MIMXRT1050_EVK
- Teensy 4.0, Teensy 4.1
- Olimex RT1010
- Seeed ARCH MIX

Tested with the following I2S hardware peripherals:
- UDA1334
- GY-SPH0645LM4H
- WM8960 codec on board the MIMXRT boards and separate breakout board
- INMP441
- PCM5102
- SGTL5000 on the Teensy audio shield

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2022-03-30 14:12:40 +11:00
..
boards mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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/mbedtls: Add NULL pointer check in m_free_mbedtls. 2022-03-17 13:11:39 +11:00
modules mimxrt/sdcard: Implement SDCard driver. 2021-09-07 20:45:33 +02:00
board_init.c mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +11:00
dma_manager.c mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +11:00
dma_manager.h mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +11:00
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_i2s.c mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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 mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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 mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +11:00
Makefile mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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 mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +11:00
modmachine.h mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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/moduos: Convert module to use extmod version. 2022-03-09 10:03:23 +11:00
modutime.c all: Update to point to files in new shared/ directory. 2021-07-12 17:08:10 +10:00
mpconfigport.h mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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 mixmrt/machine_i2s: Add I2S protocol support. 2022-03-30 14:12:40 +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