void runRmtTest() {
ESP_LOGD(tag, ">> runRmtTest");
rmt_config_t config;
config.rmt_mode = RMT_MODE_TX;
config.channel = RMT_CHANNEL_0;
config.gpio_num = 21;
config.mem_block_num = 1;
config.tx_config.loop_en = 0;
config.tx_config.carrier_en = 0;
config.tx_config.idle_output_en = 1;
config.tx_config.idle_level = 0;
config.tx_config.carrier_duty_percent = 50;
config.tx_config.carrier_freq_hz = 10000;
config.tx_config.carrier_level = 1;
config.clk_div = 80;
ESP_ERROR_CHECK(rmt_config(&config));
ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
dumpStatus(config.channel);
rmt_item32_t items[3];
items[0].duration0 = 10000;
items[0].level0 = 1;
items[0].duration1 = 10000;
items[0].level1 = 0;
items[1].duration0 = 10000;
items[1].level0 = 1;
items[1].duration1 = 5000;
items[1].level1 = 0;
items[2].duration0 = 0;
items[2].level0 = 1;
items[2].duration1 = 0;
items[2].level1 = 0;
while(1) {
ESP_ERROR_CHECK(rmt_write_items(config.channel, items,
3, /* Number of items */
1 /* wait till done */));
vTaskDelay(1000/portTICK_PERIOD_MS);
}
ESP_LOGD(tag, "<< runRmtTest");
}
/**
* @brief Create a class instance.
*
* @param [in] pin The GPIO pin on which the signal is sent/received.
* @param [in] channel The RMT channel to work with.
*/
RMT::RMT(gpio_num_t pin, rmt_channel_t channel) {
this->channel = channel;
rmt_config_t config;
config.rmt_mode = RMT_MODE_TX;
config.channel = channel;
config.gpio_num = pin;
config.mem_block_num = 8 - this->channel;
config.clk_div = 8;
config.tx_config.loop_en = 0;
config.tx_config.carrier_en = 0;
config.tx_config.idle_output_en = 1;
config.tx_config.idle_level = (rmt_idle_level_t)0;
config.tx_config.carrier_freq_hz = 10000;
config.tx_config.carrier_level = (rmt_carrier_level_t)1;
config.tx_config.carrier_duty_percent = 50;
ESP_ERROR_CHECK(rmt_config(&config));
ESP_ERROR_CHECK(rmt_driver_install(this->channel, 0, 0));
}
WS2812::WS2812(rmt_channel_t channel, gpio_num_t gpioNum, uint16_t pixelCount) {
this->pixelCount = pixelCount;
this->channel = channel;
this->items = (rmt_item32_t *)malloc(sizeof(rmt_item32_t) * (pixelCount * 24));
this->pixels = (pixel_t *)malloc(sizeof(pixel_t) * pixelCount);
rmt_config_t config;
config.rmt_mode = RMT_MODE_TX;
config.channel = channel;
config.gpio_num = gpioNum;
config.mem_block_num = 1;
config.tx_config.loop_en = 0;
config.tx_config.carrier_en = 0;
config.tx_config.idle_output_en = 1;
config.tx_config.idle_level = (rmt_idle_level_t)0;
config.tx_config.carrier_duty_percent = 50;
config.tx_config.carrier_freq_hz = 10000;
config.tx_config.carrier_level = (rmt_carrier_level_t)1;
config.clk_div = 8;
ESP_ERROR_CHECK(rmt_config(&config));
ESP_ERROR_CHECK(rmt_driver_install(this->channel, 0, 19));
} // WS2812