RP2040 mck_mult

pschatzmann · Oct 25, 2023 · e9d6580 · e9d6580
1 parent 56f97c5
commit e9d6580
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diff --git a/src/AudioI2S/I2SConfigStd.h b/src/AudioI2S/I2SConfigStd.h
@@ -60,6 +60,11 @@ class I2SConfigStd : public AudioInfo {
     int buffer_count = I2S_BUFFER_COUNT;
     int buffer_size = I2S_BUFFER_SIZE;
 
+#if defined(RP2040_HOWER)
+    /// materclock multiplier for RP2040: must be multiple of 64
+    int mck_multiplier  = 64;
+#endif
+
 #if defined(USE_ALT_PIN_SUPPORT)
     bool is_arduino_pin_numbers = true;
 #endif

diff --git a/src/AudioI2S/I2SRP2040.h b/src/AudioI2S/I2SRP2040.h
@@ -69,6 +69,7 @@ class I2SDriverRP2040 {
         return false;
       }
       if (cfg.pin_mck != -1){
+        i2s.setMCLKmult(cfg.mck_multiplier);
         if (!i2s.setMCLK(cfg.pin_mck)){
           LOGE("Could not set data pin: %d", cfg.pin_mck);
           return false;