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BF592 timer interrupt

Question asked by neoplay on Nov 16, 2013
Latest reply on Nov 28, 2013 by Prashant

Dear Friends;


I am using the BF592 Ezkit to see how to use a Timer to generate an interrupt. Here is the code I wrote:


#include <stdio.h>

#include "cdefBF592-A.h"

#include "defBF592-A.h"

#include <sys\exception.h>


int a = 1;

long read;







register_handler(ik_ivg11, TIMER0_ISR); //Assign Timer0 to generate interrupt

*pSIC_IMASK0 |= 0x80000; //Enable interrupt


*pTIMER0_CONFIG = 0x035d;




*pTIMER_ENABLE |= 0x0001;

*pTIMER_DISABLE |= 0x0001;


while (a == 1)



printf("WHILE LOOP\n");




printf("While Loop is finished");


return (0);







read = *pTIMER0_COUNTER;

printf("TIMER0_COUNTER = %d\n", read);

a = 0;




The intention is simple, when the timer reach 0x0FFFFFFF, it should generate a interrupt and then goes to the subroutine EX_INTERRUPT_HANDLER(TIMER0_ISR)

where the a is set to zero to stop the while loop.


When I execute the code, the While loop never stops and the counter is not always at 0x0FFFFFFF. Please have a look and let me know what is wrong.



Thanks very much in advance