DCCRMT.h

@@ -44,12 +44,6 @@ class RMTChannel {
       return true;
     return dataReady;
   };
-  inline void waitForDataCopy() {
-    while(1) { // do nothing and wait for interrupt clearing dataReady to happen
-      if (dataReady == false)
-	break;
-    }
-  };
   inline uint32_t packetCount() { return packetCounter; };
   
  private:

DCCWaveform.cpp

@@ -278,11 +278,7 @@ void DCCWaveform::begin() {
 
 void DCCWaveform::schedulePacket(const byte buffer[], byte byteCount, byte repeats) {
   if (byteCount > MAX_PACKET_SIZE) return; // allow for chksum
-  RMTChannel *rmtchannel = (isMainTrack ? rmtMainChannel : rmtProgChannel);
-  if (rmtchannel == NULL)
-    return; // no idea to prepare packet if we can not send it anyway
-
-  rmtchannel->waitForDataCopy(); // blocking wait so we can write into buffer
+  
   byte checksum = 0;
   for (byte b = 0; b < byteCount; b++) {
     checksum ^= buffer[b];
@@ -300,7 +296,13 @@ void DCCWaveform::schedulePacket(const byte buffer[], byte byteCount, byte repea
   {
     int ret = 0;
     do {
-      ret = rmtchannel->RMTfillData(pendingPacket, pendingLength, pendingRepeats);
+      if(isMainTrack) {
+	if (rmtMainChannel != NULL)
+	  ret = rmtMainChannel->RMTfillData(pendingPacket, pendingLength, pendingRepeats);
+      } else {
+	if (rmtProgChannel != NULL)
+	  ret = rmtProgChannel->RMTfillData(pendingPacket, pendingLength, pendingRepeats);
+      }
     } while(ret > 0);
   }
 }

version.h

@@ -3,8 +3,7 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.4.1"
-// 5.4.1  - ESP32 bugfix packet buffer race
+#define VERSION "5.4.0"
 // 5.4.0  - New version on master
 // 5.2.96 - EXRAIL additions XFWD() and XREV()
 // 5.2.95 - Release candidate for 5.4