File content as of revision 0:0da0fd430e20:

 #include "mbed.h" //5.4.7 (144)

const PinName can1rxPins[] = {PA_11};
const PinName can1txPins[] = {PA_12};
const PinName can2rxPins[] = {PB_12};
const PinName can2txPins[] = {PB_13};

//CAN1
//0,0=OK 0,1=OK 0,2=OK 1,0=OK 1,1=OK 1,2=OK 2,0=OK 2,1=OK 2,2=OK
//CAN2
//0,0=RX_OK 0,1=OK 1,0=RX_OK 1,1=OK

CAN can1(can1rxPins[0], can1txPins[0]);
CAN can(can2rxPins[0], can2txPins[0]);

  //UART1, Tx, Rx (Debug)
DigitalOut led1(LED1);


Thread sendThread(osPriorityAboveNormal, 2048);
Thread canrx;
CANMessage messageIn;
CANMessage messageOut;

void canRxIsr()
{
    while(1)
    {
    if(can1.read(messageIn))
     {
      led1 = !led1;
       printf("received\n\r");
     }
    }
   }
void sendMessage()
{
    int status = can.write(messageOut);
   printf("Send status: %d\r\n", status);
}

void sendMessageLoop()
{
    while (true)
    {
        sendMessage();
        osDelay(1000);
    }
}

int main()
{
    
    printf("CAN receive / transmit test.\r\n");
    //can.frequency(125000);

    messageOut.id = 1337;
    //messageOut.format = CANExtended;
    //messageOut.len = 0;

    canrx.start(canRxIsr);
      printf("CAN receive / .\r\n");
    sendThread.start(&sendMessageLoop);
      printf("CAN \r\n");

    while (true)
    {
        
        led1 = 0;
        osDelay(1000);
    }
}