8-bit MicrocontrollersのトピックRe: Timer Callback problem

Timer Callback problem - MC1321X

bitasobhani — Wed, 29 Oct 2008 12:21:23 GMT

Hi all
I am working on Mc1321x.
I want to insert a dalay of for example 10 seconds inside the code. I did it as below:

#define mDelayTime_c TmrSeconds(10)
.
.
.
TimeFlag=0;
TMR_StartSingleShotTimer(DelayTimerId,mDelayTime_c,DelayTimerCallBack);
while(TimeFlag==0){}
TimeFlag=0;
.
.
.

void DelayTimerCallBack
(
tmrTimerID_t timerId
)
{
(void) timerId;

TimeFlag=1;

}

All variables are defined as global.
But this code does not work. The problem is that the while loop does not permit timer callback to occur.
what should I do.

Thanks a lot

Added p/n to subject.

Message Edited by NLFSJ on 2008-10-29 09:43 AM

Re: Timer Callback problem

Lundin — Wed, 29 Oct 2008 14:42:28 GMT

To me it sounds like you forgot to make the variable volatile.

Re: Timer Callback problem

Spell — Wed, 29 Oct 2008 15:11:38 GMT

Hi bitasobhani,

you must allocate the DelayTimerId timer before you can use it.

DelayTimerId = TMR_AllocateTimer();

regards,
filippo

Re: Timer Callback problem

bitasobhani — Wed, 29 Oct 2008 16:54:37 GMT

Thanks for reply
Can you please expail what is volatile and how can I do this?

Re: Timer Callback problem

bitasobhani — Wed, 29 Oct 2008 16:56:07 GMT

Thanks for reply
No I didn't forget to allocate timer.