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Make ESP-IDF driver work.

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This commit is contained in:
Brian Bulkowski
2020-09-15 00:40:04 -07:00
parent 95be9e8432
commit 67e2522016
1 changed files with 13 additions and 7 deletions
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20
components/FastLED-idf/platforms/esp/32/clockless_rmt_esp32.cpp
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@@ -684,14 +684,20 @@ void IRAM_ATTR ESP32RMTController::fillNext()
// This function is only used when the built-in RMT driver is chosen // This function is only used when the built-in RMT driver is chosen
void ESP32RMTController::initPulseBuffer(int size_in_bytes) void ESP32RMTController::initPulseBuffer(int size_in_bytes)
{ {
if (mBuffer == 0) {
// -- Each byte has 8 bits, each bit needs a 32-bit RMT item
mBufferSize = size_in_bytes * 8 * 4;
mBuffer = (rmt_item32_t *) calloc( mBufferSize, sizeof(rmt_item32_t));
}
mCurPulse = 0; mCurPulse = 0;
// maybe we already have a buffer of the right size, it's likely
if (mBuffer && (mBufferSize == size_in_bytes * 8))
return;
if (mBuffer) { free(mBuffer); mBuffer = 0; }
// -- Each byte has 8 bits, each bit needs a 32-bit RMT item
mBufferSize = size_in_bytes * 8;
mBuffer = (rmt_item32_t *) calloc( mBufferSize, sizeof(rmt_item32_t) );
} }
// -- Convert a byte into RMT pulses // -- Convert a byte into RMT pulses
@@ -700,7 +706,7 @@ void ESP32RMTController::convertByte(uint32_t byteval)
{ {
// -- Write one byte's worth of RMT pulses to the big buffer // -- Write one byte's worth of RMT pulses to the big buffer
byteval <<= 24; byteval <<= 24;
for (register uint32_t j = 0; j < 8; j++) { for (uint32_t j = 0; j < 8; j++) {
mBuffer[mCurPulse] = (byteval & 0x80000000L) ? mOne : mZero; mBuffer[mCurPulse] = (byteval & 0x80000000L) ? mOne : mZero;
byteval <<= 1; byteval <<= 1;
mCurPulse++; mCurPulse++;