Interrupt for UART via MikroC

[Vizier87]

Hi guys,

I've started with configuring a lot of functions with my newly built remote which consists of keypads and an Xbee module with a 877A.

My transmitter goes on like this:

 if (plus==1){
       txreg=0xbf;
     }

     if (Enter==1){
       txreg=0xca;
     }

     else txreg=0;

I've successfully received data at my receiver, a 18F4620, in which I only did it like this:

if (rcif==1){
  portd=rcreg;
}

And portd lights up accordingly.

However, if I try to perform more actions within a certain value of the rcreg, like this:

if (rcreg==0xAA){
  portd=~portd;
  Delay_ms(1000);
}

So basically, I'd like to make the receiver blink as long as it's receiving data. Now, that didn't work smoothly. Always I get it without getting out of the loop when my transmitter is not transmitting anything.

So my friend told me I need to use interrupt on this one. The thing is, I just don't know how to use it for this purpose. I still don't understand interrupts on this case.

Hope anyone can give me an example.

Thanks.
Vizier87

 

[be80be]

You use a timer and let it tick off the delay and set event to toggle the portd

 

[be80be]

You use a timer and let it tick off the delay and set event to toggle the portd

Have a look at this **broken link removed**

I don't what happen here two post for one lol

 

[Vizier87]

Thanks Burt.

you see, it's not only just toggling pins or anything like that. It's just that I need it to perform a function as long as a data is received. It has a sort of a discontinuity of the data when I measured the output at a scope.

Let's say I send 0xAE.

So receiver program:

 if (rcif==1){
   buffer=rcreg;
     if (buffer==0xAE){
        rd5_bit=1;
     }
  else rd5_bit=0;
}

I'm not sure if that's the right way to do it though. Any corrections?

So anyway, when I measure the data using a scope, as long as I'm pushing the button which sends the data 0xAE, the received data is not continuous at all. There is a PWM effect, and the LED lights up dimly.

Thanks for the help.
Vizier87