Fixes to get serial interface working

1. Fixed 2 bugs that prevented the aux interface working.

2. Fixed incorrect format in M105 S2 command

Configuration.h

@@ -24,8 +24,8 @@ Licence: GPL
 #define CONFIGURATION_H
 
 #define NAME "RepRapFirmware"
-#define VERSION "0.78w-dc42"
-#define DATE "2014-11-10"
+#define VERSION "0.78x-dc42"
+#define DATE "2014-11-14"
 #define AUTHORS "reprappro, dc42, zpl"
 
 // Other firmware that we might switch to be compatible with.

GCodes.cpp

@@ -249,7 +249,7 @@ void GCodes::Spin()
 			platform->GetAux()->Read(b);
 			if (auxGCode->Put(b))	// add char to buffer and test whether the gcode is complete
 			{
-				auxGCode->SetFinished(ActOnCode(serialGCode));
+				auxGCode->SetFinished(ActOnCode(auxGCode));
 				break;	// stop after receiving a complete gcode in case we haven't finished processing it
 			}
 			++i;
@@ -1491,8 +1491,11 @@ void GCodes::HandleReply(bool error, const GCodeBuffer *gb, const char* reply, c
 	if (gb == auxGCode)
 	{
 		// Command was received from the aux interface (LCD display), so send the response only to the aux interface.
-		platform->GetAux()->Write(reply);
-		platform->GetAux()->Write('\n');
+		if (reply[0] != 0)
+		{
+			platform->GetAux()->Write(reply);
+			platform->GetAux()->Write('\n');
+		}
 		return;
 	}
 

Platform.cpp

@@ -97,11 +97,9 @@ bool PidParameters::operator==(const PidParameters& other) const
 
 Platform::Platform() :
 		tickState(0), fileStructureInitialised(false), active(false), errorCodeBits(0), debugCode(0),
-		messageString(messageStringBuffer, ARRAY_SIZE(messageStringBuffer))
+		messageString(messageStringBuffer, ARRAY_SIZE(messageStringBuffer)), line(NULL), aux(NULL)
 {
-	SerialUSB.begin(BAUD_RATE);
 	line = new Line(SerialUSB);
-	Serial.begin(BAUD_RATE);
 	aux = new Line(Serial);
 
 	// Files
@@ -121,6 +119,9 @@ void Platform::Init()
 	digitalWriteNonDue(atxPowerPin, LOW);		// ensure ATX power is off by default
 	pinModeNonDue(atxPowerPin, OUTPUT);
 
+	SerialUSB.begin(BAUD_RATE);
+	Serial.begin(BAUD_RATE);					// this can't be done in the constructor because the Arduino port initialisation isn't complete at that point
+
 	DueFlashStorage::init();
 
 #if __cplusplus >= 201103L

RepRapFirmware.cpp

@@ -678,9 +678,10 @@ void RepRap::GetStatusResponse(StringRef& response, uint8_t type) const
 			}
 		}
 		response[jp] = 0;
+		response.cat("\"");
 	}
 
-	response.cat("\"}");
+	response.cat("}");
 }