File content as of revision 0:6861a3fd2ef0:

#include "mbed.h"
#include "MODSERIAL.h"

#define MESSAGE_BUFFER_SIZE 100

DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);

MODSERIAL Compass (p9, p10);

MODSERIAL messageSystem(p13, p14);

unsigned char messageBufferIncoming[MESSAGE_BUFFER_SIZE];
unsigned int hexBufferIncoming[MESSAGE_BUFFER_SIZE];
unsigned char messageBufferOutgoing[MESSAGE_BUFFER_SIZE];
unsigned int compassMessage[3];
int count = 0;
int i = 0;
bool messageReceived;


void messageReceive(MODSERIAL_IRQ_INFO *q) {
    // Get the pointer to MODSERIAL object that invoked this callback.
    led1 = !led1;
    MODSERIAL *sys = q->serial;
    
    //dereference rxGetLasChar() of sys object 
    unsigned int c = sys->rxGetLastChar(); // Returns the last byte to pass through the RX interrupt handler.
    
    //add the character that triggered the interrupt to the incoming buffers
    //I'm adding to an in buffer and a char buffer, but using the int buffer to determine which message it is
        //if I want to use the char buffer to determine, then I need to use strcmp instead of =
    if(i <=MESSAGE_BUFFER_SIZE){
        messageBufferIncoming[i] = c;
        hexBufferIncoming[i] = c;
        messageSystem.printf("%x", hexBufferIncoming[i]);
        i++;
        }     
    count++;
   
  /*if (count == 3){ //send to compass and read the compasses response
       led3 = !led3;
            if (hexBufferIncoming[0] == 0xA4){              //Start Calibration
                if (hexBufferIncoming[1] == 0x01){
                    if (hexBufferIncoming[2] == 0xA0){
                            led1 = !led1;
                            messageSystem.printf("%c", hexBufferIncoming[0]);              
                            messageSystem.printf("%c", hexBufferIncoming[1]);
                            messageSystem.printf("%c", hexBufferIncoming[2]);
                            
                        
                        }
                    }
               }
           }
         
       */
         
             
         memset(messageBufferIncoming, '\0', sizeof(messageBufferIncoming));
         memset(hexBufferIncoming, '\0', sizeof(hexBufferIncoming));
         memset(messageBufferOutgoing, '\0', sizeof(messageBufferOutgoing));
         i = 0;
         messageReceived = true;
         count = 0;
         //} //end of if count == 4


    return;
}

void messageProcess(void) { 
     //  led1 = !led1;
    messageReceived = false;
}





int main() {

    messageReceived = false;
    memset(messageBufferIncoming, '\0', sizeof(messageBufferIncoming));
    memset(hexBufferIncoming, '\0', sizeof(hexBufferIncoming));
    memset(messageBufferOutgoing, '\0', sizeof(messageBufferOutgoing));
    messageSystem.baud(9600);
    Compass.attach(&messageReceive, MODSERIAL::RxIrq); //Attach a C++ type object/method pointer as the callback.
    

   
    // Fix Mbed library bug, see http://mbed.org/forum/bugs-suggestions/topic/1498
    LPC_GPIOINT->IO2IntClr = (1UL << 5) | (1UL << 4) | (1UL << 3) | (1UL << 2); 
 \
    while(1) {
        //led1 = !led1;
        wait(.05);
        compassMessage[0] = 0xA3;
      //  compassMessage[1] = 0x02;
        compassMessage[2] = 0xA1;
        Compass.printf("%x", compassMessage[0]);
        Compass.printf("%x", compassMessage[1]);
        Compass.printf("%x", compassMessage[2]);
    
        if (messageReceived)
        {
        //led2 = !led2;
        messageProcess();
         }
    }
}