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Rewrite I2S from scratch, add I2S input support (#569)

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Rewrite the I2S code from scratch to eliminate the dependence on the
pico-extras implementation and to support I2S input as well.

8-bit, 16-bit, 24-bit, and 32-bit words are supported.

Multiple I2S ports are allowed (theoretically up to 6 because
2 DMA channels are required per port).

I2S input and I2S output are supported.

Add input example

Fixes #535
Fixes #99
Fixes #562
This commit was merged in pull request #569.
This commit is contained in:
Earle F. Philhower, III
2022-05-04 18:43:27 -07:00
committed by GitHub
parent 3adc1c5321
commit 07500e89db
15 changed files with 1131 additions and 295 deletions
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.github/workflows/pull-request.yml
+2 -10
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@@ -20,8 +20,8 @@ jobs:
- name: Run codespell
uses: codespell-project/actions-codespell@master
with:
skip: ./pico-extras,./ArduinoCore-API,./libraries/ESP8266SdFat,./libraries/Adafruit_TinyUSB_Arduino,./libraries/LittleFS/lib,./tools/pyserial,./pico-sdk,./.github,./docs/i2s.rst,./cores/rp2040/api,./libraries/FreeRTOS
ignore_words_list: ser,DOUT
skip: ./ArduinoCore-API,./libraries/ESP8266SdFat,./libraries/Adafruit_TinyUSB_Arduino,./libraries/LittleFS/lib,./tools/pyserial,./pico-sdk,./.github,./docs/i2s.rst,./cores/rp2040/api,./libraries/FreeRTOS
ignore_words_list: ser,dout
# Consistent style
astyle:
@@ -81,8 +81,6 @@ jobs:
run: |
cd pico-sdk
git submodule update --init
cd ../pico-extras
git submodule update --init
cd ..
bash ./tests/build.sh
@@ -111,8 +109,6 @@ jobs:
run: |
cd pico-sdk
git submodule update --init
cd ../pico-extras
git submodule update --init
cd ..
bash ./tests/build-tinyusb.sh
@@ -147,8 +143,6 @@ jobs:
try { Get-Command python3 } catch { copy (get-command python).source (get-command python).source.Replace("python.exe", "python3.exe") }
cd pico-sdk
git submodule update --init
cd ../pico-extras
git submodule update --init
cd ..
bash ./tests/build.sh
@@ -181,8 +175,6 @@ jobs:
run: |
cd pico-sdk
git submodule update --init
cd ../pico-extras
git submodule update --init
cd ..
bash ./tests/build.sh