I was just looking at some code that has the #ZERO_RAM directive commented
out with a note saying that the directive causes a problem with #INT_RDA
under emulation. I can't remember any details of why this directive caused
problems on that project.

So, try commenting out the #ZERO_RAM and see if that helps.

Paul



> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Kevin A. Benedict
> Sent: Saturday, January 05, 2002 8:25 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]: CCS - C -code for SCI INT_RDA for F628
>
>
> Hi everyone,
> I am trying to getc() a character from the PC serial port and
> send it back to the serial port with #INT_RDA interrupt.
> If I run the program without the interrupt, it works fine.
> Basically a c=getc() followed by a putc(c);
> However when I use the #INT_RDA nothing happens ???
<snip>
>
> #device PIC16F628
> #case
> #include "C:\PROJECTS\16f628.h"
> #fuses xt,nowdt,noprotect,put,nobrownout,nolvp
> #use delay (clock=4000000)
> #use rs232 (baud=300, rcv=PIN_B1, xmit=PIN_B2, parity=N,
> bits=8,ERRORS, INVERT)
>
> #ZERO_RAM
>
> #INT_RDA
> void serial_isr(){
>         char c;
>         c=getc();
>         putc(c);
>                  }
>

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