main.c

基于ARM7微控制器AT91X40开发板的定时器程序

/*
 * main.c
 * 
 * author: Kexin ([e-mail]) Tel:[phone]
 * date:   2007-11-22	
 */
#include "at91.h"
#include "at91_timer.h"
#include "at91_usart.h"

#define KERNEL_TIMER 1

unsigned long svr[32];


void deal_TimerIrq(void)
{
	 register volatile struct at91_timers* tt=(struct at91_timers *)(AT91_TC_BASE);	
	 register volatile struct at91_timer_channel* tc = &tt->chans[1].ch;	
	 static int cnt = 0;
   unsigned long tmp;
 	 cnt++;
 	
 	if((cnt % 1000)==0)
 		{ 
 			printf("Irq1");
 		}
 		
   tmp=tc->sr;		
   return;
}

void maintest(void)
{  
	static int count = 1;
  at91_timer_param param;

  at91_init_usart();
  
  at91_init(irq_handler);  
  
  param.TimerNum = KERNEL_TIMER;
  
  param.CycleTime = 60;
  
  param.irq_svr = (void*)deal_TimerIrq;
  
  at91_set_timer(param);

  while(count++) 
     if ((count%10000)== 0)
     {
      printf("main");
     }
  return ;
}