#include "hal_wdg.h"

#include "sys_timer.h"

IWDG_HandleTypeDef IWDG_Handler; //独立看门狗句柄

//初始化独立看门狗
//prer:分频数:IWDG_PRESCALER_4~IWDG_PRESCALER_256
//rlr:自动重装载值,0~0XFFF.
//时间计算(大概):Tout=((4*2^prer)*rlr)/32 (ms).
void HAL_WdgInit(uint8_t prer,uint16_t rlr)
{
    IWDG_Handler.Instance=IWDG;
    IWDG_Handler.Init.Prescaler=prer;	//设置IWDG分频系数
    IWDG_Handler.Init.Reload=rlr;		//重装载值
    HAL_IWDG_Init(&IWDG_Handler);		//初始化IWDG,默认会开启独立看门狗	
}

static void wdg_feed_timer_callback()
{
    HAL_IWDG_Refresh(&IWDG_Handler);//喂狗
}
//喂独立看门狗
void HAL_WdgFeed(void)
{   
    HAL_TimerRegister(wdg_feed_timer_callback, 1000);
}