USE SPDIF only when USE_I2S is defined

Author: pschatzmann

src/AudioConfig.h

@@ -223,12 +223,26 @@ typedef uint32_t eps32_i2s_sample_rate_type;
 #endif
 
 //----------------
-#if defined(ARDUINO_ARCH_RP2040) 
-#if defined(ARDUINO_ARCH_MBED)
-//#define USE_I2S 1
-#else
+#if defined(DARDUINO_ARCH_MBED_RP2040)
+#define USE_I2S 1
+#define USE_PWM
+
+#define PWM_START_PIN 6
+#define PIN_I2S_BCK 26
+#define PIN_I2S_WS PIN_I2S_BCK+1
+#define PIN_I2S_DATA_IN 28
+#define PIN_I2S_DATA_OUT 28
+#define PIN_I2S_MUTE 4
+#define SOFT_MUTE_VALUE LOW  
+#define PIN_CS PIN_SPI0_SS
+
+// fix missing __sync_synchronize symbol
+#define FIX_SYNC_SYNCHRONIZE
+#define IRAM_ATTR
+//#define USE_ESP8266_AUDIO
+
+#elif defined(DARDUINO_ARCH_RP2040)
 #define USE_I2S 1
-#endif
 #define USE_PWM
 
 #define PWM_START_PIN 6

src/AudioTools.h

@@ -20,7 +20,6 @@
 #include "AudioTools/AudioStreams.h"
 #include "AudioTools/AudioOutput.h"
 #include "AudioTools/AudioCopy.h"
-#include "AudioTools/AudioSPDIF.h"
 #include "AudioMetaData/MetaData.h"
 #include "AudioCodecs/AudioCodecs.h"
 #include "AudioHttp/AudioHttp.h"
@@ -33,6 +32,10 @@
  * @brief Optional external libraries
  * 
  */
+#if defined(USE_I2S)
+#include "AudioTools/AudioSPDIF.h"
+#endif
+
 #if defined(USE_PORTAUDIO) 
 #include "AudioLibs/PortAudioStream.h"
 #endif