Refactoring menu code to be non-blocking

Added macros for GPIO read/write

source/utils.c

@@ -28,6 +28,7 @@
 #include <stdio.h>
 #include "hwFixes.h"
 #include "System\system.h"
+#include "io.h"
 
 
 //#define	ON	1
@@ -130,9 +131,13 @@ void Select_Bypass(RELAY_SELECT_t Bypass) // Bypass allows transmitting w/o full
 void Select_Estop(RELAY_SELECT_t E_stop)
 {
 	if (E_stop)
-		GPIO_PinWrite(GPIO, 1, ESTOP, 0);			// Isolated
+	{
+		GPIO_WRITE(PIN_ESTOP, LOW);
+		//GPIO_PinWrite(GPIO, 1, ESTOP, 0);			// Isolated
+	}
 	else
-		GPIO_PinWrite(GPIO, 1, ESTOP, 1);			// Not Isolated
+		//GPIO_PinWrite(GPIO, 1, ESTOP, 1);			// Not Isolated
+		GPIO_WRITE(PIN_ESTOP, HIGH);
 
 }
 void Select_Transformer()