Hi,

I guess here is a misunderstanding. IMHO #int_rda makes sense ONLY if the
pins assigned in the #USE statement are the dedicated h/w ones (RC6 and
RC7).

I hope this helps.

Imre

On Tue, 5 Feb 2002, Kevin A. Benedict wrote:

> Hi Tommi,
> I have CCS C PCM ver 2.7, and have been unable to get RX int rtn to
> work at all, I tried your code line:
> #device PIC16F628
> #case
> #include "C:\PROJECTS\defs\16f628.h"
> #include "C:\PROJECTS\defs\defs_628.h"
> #fuses xt,nowdt,noprotect,put,nobrownout,nolvp
> #use delay (clock=4000000)
> #use rs232 (baud=9600, rcv=PB1, xmit=PB2, parity=N, bits=8,ERRORS)
> //#ZERO_RAM
>
> #INT_RDA
> void serial_isr(){
>         char char_received;
>         char_received = RCREG; // (direct from receiver)
> //        c=getc();
>         putc(char_received);
>                  }
> void flashled();
> main ()
> {
>    enable_interrupts(GLOBAL);
>    enable_interrupts(INT_RDA);
>
>         flashled();
>         puts("\r\n Starting Test ...\r\n");
>         while(1){;}
> }
>
> I dropped the flashled() to save space, see any problems with this rtn
> it still does not work. I am using a max232 chip, and the rtn works fine
> without the interrupt rtn. IE getc() then putc(). So far CCS has been
> unresponsive.
>
> >One of my problems was using getc() function in RX interrupt routine. My
> >interrupt routine did not work until for a _long_ debugging and until I
> >replaced getc() with something like.
> >
> >char_received = RCREG // (direct from receiver)
> >
> >I changed only one line.
>
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>

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