watchdog_timer.c

包含s3c2440几乎所有测试程序代码

#include "2440addr.h"
#include "2440lib.h"
void watchdog_test(void);
void __irq Watchdog_ISR(void);

//复位次数
int f_ucSencondNo=0;

void xmain(void)
{
	ChangeClockDivider(3,1);
	ChangeMPllValue(127,2,1);		//405MHZ
	
	Isr_Init();
	Uart_Init(0, 115200);
	Uart_Select(0);
	Uart_Printf("watchdog test is beginning\n");
	watchdog_test();
      
}

/**********************************
		watchdog_init
watchdog interrupt service routine
************************************/ 
void watchdog_test(void)
{
  //clear interrupt registers
  ClearPending(BIT_WDT_AC97);
  ClearSubPending(BIT_SUB_WDT);
  ClearSubPending(BIT_SUB_WDT);
  
  
  //建立WatchDog中断
  pISR_WDT_AC97=(unsigned)Watchdog_ISR;
  
  //Prescaler value=100;