iwdg.c
#include"iwdg.h"
void iwdg_init(uint8_t IWDG_Prescaler,uint16_t Reload)
{
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
IWDG_SetPrescaler(IWDG_Prescaler);
IWDG_SetReload(Reload);
IWDG_ReloadCounter();
IWDG_Enable();
}
iwdg.h
#ifndef __IWDG_H
#define __IWDG_H
#include "stm32f10x.h"
void iwdg_init(uint8_t IWDG_Prescaler,uint16_t Reload);
#endif
main.c
#include "exti.h"
#include "iwdg.h"
int main(void)
{
delay_init();
LedInit();
Exti_Init();
iwdg_init(4,625);//1s,看门狗超时时间
LED0on;
delay_ms(200);
while(1)
{
if(KEY0_PRES==KEY0_PRES)
{
IWDG_ReloadCounter();
}
}
}
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