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feat(rmt): enable RMT support on esp32s31

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Enable esp32s31 RMT caps and clock source definitions for
esp_driver_rmt.

Add esp32s31 RMT LL/periph hooks, sleep retention metadata, and RMTMEM
linker symbol.
This commit is contained in:
morris
2026-04-08 10:17:10 +08:00
parent ae710978ae
commit ae8acf82e7
35 changed files with 1069 additions and 115 deletions
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examples/peripherals/rmt/led_strip_simple_encoder/README.md
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@@ -1,5 +1,5 @@
| Supported Targets | ESP32 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-H2 | ESP32-H21 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- | -------- |
| Supported Targets | ESP32 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-H2 | ESP32-H21 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 | ESP32-S31 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- | -------- | --------- |
# RMT Transmit Example -- LED Strip
(See the README.md file in the upper level 'examples' directory for more information about examples.)
examples/peripherals/rmt/led_strip_simple_encoder/main/led_strip_example_main.c
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#include "driver/rmt_tx.h"
#define RMT_LED_STRIP_RESOLUTION_HZ 10000000 // 10MHz resolution, 1 tick = 0.1us (led strip needs a high resolution)
#define RMT_LED_STRIP_GPIO_NUM 8
#define RMT_LED_STRIP_GPIO_NUM 0
#define EXAMPLE_LED_NUMBERS 24
examples/peripherals/rmt/led_strip_simple_encoder/pytest_led_strip_simple_encoder.py
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# SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: CC0-1.0
import pytest
from pytest_embedded import Dut
from pytest_embedded_idf.utils import idf_parametrize
from pytest_embedded_idf.utils import soc_filtered_targets
@pytest.mark.generic
@idf_parametrize('target', soc_filtered_targets('SOC_RMT_SUPPORTED == 1'), indirect=['target'])
def test_led_strip_simple_encoder_example(dut: Dut) -> None:
dut.expect_exact('example: Create RMT TX channel')
dut.expect_exact('example: Create simple callback-based encoder')
dut.expect_exact('example: Enable RMT TX channel')
dut.expect_exact('example: Start LED rainbow chase')