Fix

MK/Pins.h

@@ -5250,6 +5250,9 @@ DaveX plan for Teensylu/printrboard-type pinouts (ref teensylu & sprinter) for a
     #define SCK_PIN           76
   #else
     #define DUE_SOFTWARE_SPI
+    #define MOSI_PIN		      51
+    #define MISO_PIN		      50
+    #define SCK_PIN 		      52
   #endif
 #endif
 /****************************************************************************************/

MK/module/MK_Main.cpp

@@ -6857,13 +6857,13 @@ void process_next_command() {
 
   // Sanitize the current command:
   //  - Skip leading spaces
-  //  - Bypass N[0-9][0-9]*[ ]*
+  //  - Bypass N[-0-9][0-9]*[ ]*
   //  - Overwrite * with nul to mark the end
   while (*current_command == ' ') ++current_command;
-  if ((*current_command == 'N' || *current_command == 'n') && current_command[1] >= '0' && current_command[1] <= '9') {
-    current_command += 2; // skip N[0-9]
+  if ((*current_command == 'N' || *current_command == 'n') && ((current_command[1] >= '0' && current_command[1] <= '9') || current_command[1] == '-')) {
+    current_command += 2; // skip N[-0-9]
     while (*current_command >= '0' && *current_command <= '9') ++current_command; // skip [0-9]*
-    while (*current_command == ' ') ++current_command;
+    while (*current_command == ' ') ++current_command; // skip [ ]*
   }
   char* starpos = strchr(current_command, '*');  // * should always be the last parameter
   if (starpos) while (*starpos == ' ' || *starpos == '*') *starpos-- = '\0'; // nullify '*' and ' '