[ts-7000] Timer 1 periodic interrupt

["lotsi01" <>]

Hi all,

I want to write a program that uses the interrupt from timer 1 to, 
for example, increase a counter. I have been reading the EP9301 User 
Guide and the messages in this group, but I can't figure out how to 
do it. So far I think I have managed to get the timer to work, but as 
for the interrupt, I'm stuck. I'm new to embedded programming so a 
small example program would really be helpful.

My program for timer 1:

#include<unistd.h>
#include<sys/types.h>
#include<sys/time.h>
#include<sys/mman.h>
#include<stdio.h>
#include<fcntl.h>

int main(int argc, char **argv)
{
 int i;
 int Value=0;
 unsigned int *t1Load, *t1Control, *t1Value;
 unsigned char *start;
 int fd = open("/dev/mem", O_RDWR);

 start = mmap(0, getpagesize(), PROT_READ|PROT_WRITE, MAP_SHARED,fd, 
0x80810000);
 t1Load =  (unsigned int *)(start + 0x00);
 t1Control =  (unsigned int *)(start + 0x08);
 t1Value = (unsigned int *)(start + 0x4);
 
 //Loading start value
 *t1Load=20000;

 //Enable timer
 *t1Control=0xC0;

 //Print it:
 for(i=0;i<65000;i++)
 {
  // Get a value
  Value = *t1Value;
  printf("%d\n", Value);
 }
 printf("Done\n");

 //Disable Timer
 *t1Control=0;

 close(fd);
 return 0;
}


The TS-7250 is not very responsive after I have run this program, 
maybe it has something to do with some unhandled interrupt. Any help 
would be appreciated.







 
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