Support a third serial port (#21784)

2021-05-07 17:31:45 +12:00
parent be6fbc76a1
commit 02405add76
20 changed files with 212 additions and 47 deletions
--- a/Marlin/src/HAL/DUE/HAL.h
+++ b/Marlin/src/HAL/DUE/HAL.h
@@ -68,6 +68,16 @@ extern DefaultSerial4 MSerial3;
  #endif
 #endif

+#ifdef SERIAL_PORT_3
+  #if SERIAL_PORT_3 == -1 || ENABLED(EMERGENCY_PARSER)
+    #define MYSERIAL3 customizedSerial3
+  #elif WITHIN(SERIAL_PORT_3, 0, 3)
+    #define MYSERIAL3 MSERIAL(SERIAL_PORT_3)
+  #else
+    #error "SERIAL_PORT_3 must be from 0 to 3, or -1 for USB Serial."
+  #endif
+#endif
+
 #ifdef MMU2_SERIAL_PORT
  #if WITHIN(MMU2_SERIAL_PORT, 0, 3)
    #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)