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change to RMT loop mode

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This commit is contained in:
Harald Barth 2021-11-18 23:57:53 +01:00
parent 114686d124
commit a69b7ee113
1 changed files with 3 additions and 1 deletions
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4
DCCRMT.cpp
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@ -100,6 +100,7 @@ RMTPin::RMTPin(byte pin, byte ch, byte plen) {
DIAG(F("Register interrupt on core %d"), xPortGetCoreID());
ESP_ERROR_CHECK(rmt_set_tx_loop_mode(channel, true));
rmt_register_tx_end_callback(interrupt, this);
rmt_set_tx_intr_en(channel, true);
@ -148,7 +149,8 @@ bool RMTPin::RMTfillData(const byte buffer[], byte byteCount, byte repeatCount=1
}
void IRAM_ATTR RMTPin::RMTinterrupt() {
rmt_tx_start(channel,true); // preamble is always loaded, stat right away
//no rmt_tx_start(channel,true) as we run in loop mode
//preamble is always loaded at beginning of buffer
if (dataReady) { // if we have new data, fill while preamble is running
rmt_fill_tx_items(channel, data, dataLen, preambleLen-1);
dataReady = false;