Fix ESP32 send sample rate when configured on I2S1

joextodd · Damien Laidin · commit 426a8f72a7f4 · 2019-08-09T22:22:39.000+01:00
diff --git a/examples/ESP32Send/ESP32Send.ino b/examples/ESP32Send/ESP32Send.ino
@@ -244,5 +244,14 @@ void setupAudioOutput(int sample_rate)
     while (true);
   }
 
+  /*
+   * Known Issue
+   * The output sample rate is not correct if I2S0 is not configured
+   * This can be removed if receiving is set up on I2S0.
+   */
+  i2s_config_t i2s_config_stub = i2s_config;
+  i2s_config_stub.bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT;
+  i2s_driver_install(I2S_NUM_0, &i2s_config_stub, 0, NULL);
+
   Serial.println("Audio output driver initalised.");
 }

Original file line number	Diff line number	Diff line change
`@@ -244,5 +244,14 @@ void setupAudioOutput(int sample_rate)`
`244`	`244`	`while (true);`
`245`	`245`	`}`
`246`	`246`
	`247`	`+ /*`
	`248`	`+ * Known Issue`
	`249`	`+ * The output sample rate is not correct if I2S0 is not configured`
	`250`	`+ * This can be removed if receiving is set up on I2S0.`
	`251`	`+ */`
	`252`	`+ i2s_config_t i2s_config_stub = i2s_config;`
	`253`	`+ i2s_config_stub.bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT;`
	`254`	`+ i2s_driver_install(I2S_NUM_0, &i2s_config_stub, 0, NULL);`
	`255`	`+`
`247`	`256`	`Serial.println("Audio output driver initalised.");`
`248`	`257`	`}`