#include "AC101AudioSink.h" #include "driver/i2s.h" AC101AudioSink::AC101AudioSink() { // Disable software volume control, all handled by ::volumeChanged softwareVolumeControl = false; i2s_config_t i2s_config = { .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX), // Only TX .sample_rate = 44100, .bits_per_sample = (i2s_bits_per_sample_t)16, .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, //2-channels .communication_format = (i2s_comm_format_t)I2S_COMM_FORMAT_I2S, .intr_alloc_flags = 0, //Default interrupt priority .dma_buf_count = 8, .dma_buf_len = 512, .use_apll = true, .tx_desc_auto_clear = true //Auto clear tx descriptor on underflow }; i2s_pin_config_t pin_config = { .bck_io_num = 27, .ws_io_num = 26, .data_out_num = 25, .data_in_num = -1 //Not used }; dac = &dac_a1s; dac->init(0, 0, &i2s_config); dac->speaker(false); dac->power(ADAC_ON); startI2sFeed(); } AC101AudioSink::~AC101AudioSink() {} void AC101AudioSink::volumeChanged(uint16_t volume) { dac->volume(volume, volume); }