39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
#include "../main/SystemInclude.h"
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/*==========================================
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IWDG
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==========================================*/
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//iwdg_cfg(IWDG_PRESCALER_t IWDG_PRESCALER,uint16_t Reload)
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void iwdg_cfg(void)
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{
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// 1. IWDG上电后默认是运行状态，时钟源32K LSI，默认复位周期约20秒
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LHL_IWDG_Stop();
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// 2. 写入WDG必须先解锁，注意WDG一旦Reload就自动启用写保护
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LHL_IWDG_Unlock();
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// 3. 设定LSI 32分频（约1KHz），默认为256分频
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LHL_IWDG_SetPrescaler(IWDG_PRESCALER_32, LHL_NRM_TIMEOUT);
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// 4. IWDG是12bit寄存器，最大值4095（默认重装载值0x9C0）
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LHL_IWDG_SetReload(4000, LHL_NRM_TIMEOUT);
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// 5. 自动装载并开始运行，大约4000*1KHz=4S复位
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LHL_IWDG_Start();
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}
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/*
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//void LHL_IWDG_Reload(void);//写入0xAAAA重装载IWDG
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//LHL_StatusTypeDef LHL_IWDG_Stop(void); //暂停运行IWDG
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//LHL_StatusTypeDef LHL_IWDG_Resume(void);//继续运行IWDG
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//LHL_StatusTypeDef LHL_IWDG_Start(void);//写入0xAAAA重装载并启动IWDG
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*/
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void stop_WDT(void)
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{
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LHL_IWDG_Stop();
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}
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void clear_WDT(void)
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{
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//LHL_IWDG_Reload();
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}
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