Commit Graph

7 Commits

Author SHA1 Message Date
MikeTeachman 49d8ae3ecc esp32/machine_i2s: Add support for ESP-IDF 4.4.
- Add default values for I2S features added in ESP-IDF 4.4.
- Add workaround for bug introduced in ESP-IDF 4.4
  (https://github.com/espressif/esp-idf/issues/8121).
2022-01-06 13:10:38 +11:00
MikeTeachman 6d5296e65e stm32,esp32: In machine_i2s, make object reference arrays root pointers.
This change eliminates the risk of the IRQ callback accessing invalid data.
Discussed here:
https://github.com/micropython/micropython/pull/7183#discussion_r660209875

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-11-13 12:22:42 +11:00
MikeTeachman 0be3b91f11 stm32,esp32: In machine_i2s, send null samples in underflow situations.
Eliminate noise data from being sent to the I2S peripheral when the
transmitted sample stream is stopped.

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-11-12 16:50:15 +11:00
Damien George 54d33b266c esp32: Add support for ESP32-S3 SoCs.
Thanks to Seon Rozenblum aka @UnexpectedMaker for the work.

Signed-off-by: Damien George <damien@micropython.org>
2021-09-16 22:58:47 +10:00
Damien George 59dbbe9be7 esp32: Fix use of mp_int_t, size_t and uintptr_t.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-18 23:58:16 +10:00
Damien George 0fc0ccabec esp32/machine_i2s: Add MICROPY_PY_MACHINE_I2S option, enable by default.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-18 12:31:13 +10:00
Mike Teachman 8a5bfe44a5 esp32,stm32: Add new machine.I2S class for I2S protocol support.
This commit adds I2S protocol support for the esp32 and stm32 ports, via
a new machine.I2S class.  It builds on the stm32 work of blmorris, #1361.

Features include:
- a consistent I2S API across the esp32 and stm32 ports
- I2S configurations supported:
  - master transmit and master receive
  - 16-bit and 32-bit sample sizes
  - mono and stereo formats
  - sampling frequency
  - 3 modes of operation:
    - blocking
    - non-blocking with callback
    - uasyncio
  - internal ring buffer size can be tuned
- documentation for Pyboards and esp32-based boards
- tested on the following development boards:
  - Pyboard D SF2W
  - Pyboard V1.1
  - ESP32 with SPIRAM
  - ESP32

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-07-05 23:42:25 +10:00