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Code Issues Releases Wiki Activity

Add reset to esp32_rmt_led_strip (#7354)

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This commit is contained in:
Angel Nunez Mencias
2024-08-27 03:26:01 +02:00
committed by GitHub
parent 5a707b558d
commit 7e18a5c44f
3 changed files with 37 additions and 8 deletions
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16
esphome/components/esp32_rmt_led_strip/led_strip.cpp
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@@ -38,7 +38,8 @@ void ESP32RMTLEDStripLightOutput::setup() {
}
ExternalRAMAllocator<rmt_item32_t> rmt_allocator(ExternalRAMAllocator<rmt_item32_t>::ALLOW_FAILURE);
this->rmt_buf_ = rmt_allocator.allocate(buffer_size * 8); // 8 bits per byte, 1 rmt_item32_t per bit
this->rmt_buf_ = rmt_allocator.allocate(buffer_size * 8 +
1); // 8 bits per byte, 1 rmt_item32_t per bit + 1 rmt_item32_t for reset
rmt_config_t config;
memset(&config, 0, sizeof(config));
@@ -66,7 +67,7 @@ void ESP32RMTLEDStripLightOutput::setup() {
}
void ESP32RMTLEDStripLightOutput::set_led_params(uint32_t bit0_high, uint32_t bit0_low, uint32_t bit1_high,
uint32_t bit1_low) {
uint32_t bit1_low, uint32_t reset_time_high, uint32_t reset_time_low) {
float ratio = (float) RMT_CLK_FREQ / RMT_CLK_DIV / 1e09f;
// 0-bit
@@ -79,6 +80,11 @@ void ESP32RMTLEDStripLightOutput::set_led_params(uint32_t bit0_high, uint32_t bi
this->bit1_.level0 = 1;
this->bit1_.duration1 = (uint32_t) (ratio * bit1_low);
this->bit1_.level1 = 0;
// reset
this->reset_.duration0 = (uint32_t) (ratio * reset_time_high);
this->reset_.level0 = 1;
this->reset_.duration1 = (uint32_t) (ratio * reset_time_low);
this->reset_.level1 = 0;
}
void ESP32RMTLEDStripLightOutput::write_state(light::LightState *state) {
@@ -118,6 +124,12 @@ void ESP32RMTLEDStripLightOutput::write_state(light::LightState *state) {
psrc++;
}
if (this->reset_.duration0 > 0 || this->reset_.duration1 > 0) {
pdest->val = this->reset_.val;
pdest++;
len++;
}
if (rmt_write_items(this->channel_, this->rmt_buf_, len, false) != ESP_OK) {
ESP_LOGE(TAG, "RMT TX error");
this->status_set_warning();