Commit Graph

2 Commits

Author SHA1 Message Date
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
robert-hh da9c3607a5 mimxrt: Add support for the Olimex RT1010 board.
The board.json file is intentionally excluded, until the board will be
sold. But including it into the mimxrt series make it easier to keep
the build up-to-date.
2022-01-27 17:05:45 +11:00