[EMAIL PROTECTED] wrote:
>
> ==========
> PROJECT1.C
> ==========
> #include <at89x52.h>
> #include "sys.h"
>
extern void SystemTick( void ) interrupt 1 using 1;
> void main( void ) {
> InitMcu();
>
> while ( 1 ) {
> LoadDelay( 10 );
> P1 = 0xff; // leds off
> while( !TIMEOUT );
> LoadDelay( 10 );
> P1 = 0; // leds on
> while( !TIMEOUT );
> }
> }
I fell foul of this "feature" when I was using seperately compiled
modules together with interrupts.
As the other posters have pointed out, you must declare the interrupt
function header in the "main" module (as shown above). The code can go
in the other source file.
In my program I have a file called "extern.h" with all the extern
function declarations. I use some #ifdef tricks so that a module doesn't
see it's own declarations.
regards...
--Gary
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