externer DAC code anpassung

Audio_Test/Audio_Test.ino

@@ -18,17 +18,22 @@ int amplitude = 100;
 int freq = 10;
 
 i2s_config_t i2s_config = {
-	.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_DAC_BUILT_IN),
+	.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX ),
 	.sample_rate = 48000, 							// corrected by info from bluetooth
 	.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, 	//the DAC module will only take the 8bits from MSB
 	.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
-	.communication_format = I2S_COMM_FORMAT_I2S_MSB,
+	.communication_format = I2S_COMM_FORMAT_I2S,
 	.intr_alloc_flags = 0,							// default interrupt priority
 	.dma_buf_count = 8,
 	.dma_buf_len = 64,
-	.use_apll = false,
-	.tx_desc_auto_clear = false,
-	.fixed_mclk = 0
+	.use_apll = false
+};
+
+static const i2s_pin_config_t pin_config = {
+	.bck_io_num = 26,
+	.ws_io_num = 25,
+	.data_out_num = 27,
+	.data_in_num = I2S_PIN_NO_CHANGE
 };
 
 void cb_a2d(esp_a2d_cb_event_t event, esp_a2d_cb_param_t* param) {
@@ -52,7 +57,8 @@ void cb_a2d(esp_a2d_cb_event_t event, esp_a2d_cb_param_t* param) {
 
 			Serial.println(i2s_config.sample_rate);
 
-			i2s_set_clk(I2S_NUM_0, i2s_config.sample_rate, i2s_config.bits_per_sample,  I2S_CHANNEL_STEREO);
+			//i2s_set_clk(I2S_NUM_0, i2s_config.sample_rate, i2s_config.bits_per_sample,  I2S_CHANNEL_STEREO);
+			i2s_set_sample_rates(I2S_NUM_0, i2s_config.sample_rate);
 		}
 		else if (param->audio_cfg.mcc.type == ESP_A2D_MCT_M12) {
 			Serial.write("MPEG-1, 2 Audio");
@@ -125,8 +131,9 @@ void setup_bti2s() {
 	bt_init("ESP32 Audiotest", cb_a2d, cb_audiodata);
 
 	i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);
-	i2s_set_pin(I2S_NUM_0, NULL);
-	i2s_set_dac_mode(I2S_DAC_CHANNEL_BOTH_EN);
+	i2s_set_pin(I2S_NUM_0, &pin_config);
+	//i2s_set_pin(I2S_NUM_0, NULL);
+	//i2s_set_dac_mode(I2S_DAC_CHANNEL_BOTH_EN);
 
 	i2s_set_sample_rates(I2S_NUM_0, i2s_config.sample_rate);