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Correct assignment of RMT channels on ESP32C3

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root 2023-02-02 14:55:57 -06:00
parent 037bfb39e3
commit 750535d4af
1 changed files with 8 additions and 0 deletions
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8
ports/espressif/peripherals/rmt.c
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@ -40,6 +40,14 @@ void peripherals_rmt_reset(void) {
rmt_channel_t peripherals_find_and_reserve_rmt(bool mode) {
size_t start_channel = 0;
size_t end_channel = RMT_CHANNEL_MAX;
// ESP32C3 can only send on channels 0-1 and receive on channels 2-3
#if defined(CONFIG_IDF_TARGET_ESP32C3)
if (mode == RECEIVE_MODE) {
start_channel = 2;
} else {
end_channel = 2;
}
#endif // ESP32C3
#if SOC_RMT_CHANNELS_PER_GROUP > 4
if (mode == RECEIVE_MODE) {
start_channel = 4;