stm32正点原子学习笔记(29)独立看门狗实验
2019-11-11 来源:eefocus
iwdg.c
1 #include'iwdg.h'
2
3 void iwdg_init(uint8_t IWDG_Prescaler,uint16_t Reload)
4 {
5 IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
6 IWDG_SetPrescaler(IWDG_Prescaler);
7 IWDG_SetReload(Reload);
8 IWDG_ReloadCounter();
9 IWDG_Enable();
10
11 }
iwdg.h
1 #ifndef __IWDG_H
2 #define __IWDG_H
3
4 #include 'stm32f10x.h'
5
6 void iwdg_init(uint8_t IWDG_Prescaler,uint16_t Reload);
7
8
9 #endif
main.c
1 #include 'exti.h'
2 #include 'iwdg.h'
3
4
5 int main(void)
6 {
7 delay_init();
8 LedInit();
9 Exti_Init();
10 iwdg_init(4,625);//1s,看门狗超时时间
11 LED0on;
12 delay_ms(200);
13
14 while(1)
15 {
16 if(KEY0_PRES==KEY0_PRES)
17 {
18 IWDG_ReloadCounter();
19 }
20 }
21 }