Fix SAMD Serial name macro (MarlinFirmware#19765)

effgarces · Oct 16, 2020 · 0a0f211 · 0a0f211
1 parent 86cb079
commit 0a0f211
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Marlin/src/HAL/SAMD51/HAL.h b/Marlin/src/HAL/SAMD51/HAL.h
@@ -35,7 +35,8 @@
 
   // MYSERIAL0 required before MarlinSerial includes!
 
-  #define _MSERIAL(X) Serial##X
+  #define __MSERIAL(X) Serial##X
+  #define _MSERIAL(X) __MSERIAL(X)
   #define MSERIAL(X) _MSERIAL(INCREMENT(X))
 
   #if SERIAL_PORT == -1