#include "DSP28x_Project.h"     // Device Headerfile and Examples Include File
void mailbox_chec(int32 T1, int32 T2, int32 T3);
void mailbox_rea(int16 i);

// Global variable for this example
Uint32  ErrorCoun;
Uint32  PassCoun;
Uint32  MessageReceivedCoun;

Uint32  TestMbo1 = 0;
Uint32  TestMbo2 = 0;
Uint32  TestMbo3 = 0; 

void main(void)
{
    Uint16  j;
//   struct ECAN_REGS ECanaShadow;

   InitSysCtrl();
   DINT;
   InitPieCtrl();
   IER = 0x0000;
   IFR = 0x0000;
   InitPieVectTable();
    MessageReceivedCoun = 0;
    ErrorCoun = 0;
    PassCoun = 0; 
	setcans(); // Initialize eCAN-A module

    for(;;)
    {
       //Read from Receive mailboxes and begin checking for data */
       for(j=0; j<16; j++)         // Read & check 16 mailboxes
       {
          mailbox_rea(j);         // This func reads the indicated mailbox data
          mailbox_chec(TestMbo1,TestMbo2,TestMbo3); // Checks the received data
       }
    }
}

// This function reads out the contents of the indicated
// by the Mailbox number (MBXnbr).
void mailbox_rea(int16 MBXnb)
{
   volatile struct MBOX *Mailbo;
   Mailbo = &ECanaMboxes.MBOX0 + MBXnb;
   TestMbo1 = Mailbo->MDL.all; // = 0x9555AAAn (n is the MBX number)
   TestMbo2 = Mailbo->MDH.all; // = 0x89ABCDEF (a constant)
   TestMbo3 = Mailbo->MSGID.all;// = 0x9555AAAn (n is the MBX number)

} // MSGID of a rcv MBX is transmitted as the MDL data.

void mailbox_chec(int32 T1, int32 T2, int32 T3)
{
    if((T1 != T3) || ( T2 != 0x89ABCDEF))
    {
       ErrorCoun++;
    }
    else
    {
       PassCoun++;
    }
}