nRF52: Stereo mode not set back to mono

TMRh20 · Oct 23, 2024 · 69f18ae · 69f18ae
1 parent 1cb6996
commit 69f18ae
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/examples/Platforms/NRF52/NRF52_PDM_PWMTest/NRF52_PDM_PWMTest.ino b/examples/Platforms/NRF52/NRF52_PDM_PWMTest/NRF52_PDM_PWMTest.ino
@@ -17,7 +17,7 @@ void setup() {
 void loop() {
 
   aaAudio.getADC(320); // Get 320 Samples from the ADC
-  for (int i = 0; i < 320; i++) {  // Copy them into the DAC Buffer and change from signed to unsigned ( + 0x8000)
+  for (int i = 0; i < 320; i++) {  // Copy them into the DAC Buffer
     aaAudio.dacBuffer16[i] = (uint16_t)(aaAudio.adcBuffer16[i]);
   }
   aaAudio.feedDAC(0,320); // Feed the DAC with the ADC data

diff --git a/src/NRF52840/AutoAnalogAudio.cpp b/src/NRF52840/AutoAnalogAudio.cpp
@@ -132,6 +132,8 @@ void AutoAnalog::setSampleRate(uint32_t sampRate, bool stereo){
 
       if(stereo){
         NRF_I2S->CONFIG.CHANNELS = I2S_CONFIG_CHANNELS_CHANNELS_STEREO << I2S_CONFIG_CHANNELS_CHANNELS_Pos;
+      }else{
+        NRF_I2S->CONFIG.CHANNELS = I2S_CONFIG_CHANNELS_CHANNELS_LEFT << I2S_CONFIG_CHANNELS_CHANNELS_Pos;
       }
 
       if(sampRate <= 16000){