22 lines
		
	
	
		
			270 B
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			22 lines
		
	
	
		
			270 B
		
	
	
	
		
			C
		
	
	
	
	
	
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								#include "stm32f4xx.h"
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								#include "board.h"
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								// 开始watch dog
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								void wdog_start(void)
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								{
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								  IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
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								  IWDG_SetPrescaler(IWDG_Prescaler_32);
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								  IWDG_Enable();
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								}
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								// 更新看门狗
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								void wdog_refresh(void)
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								{
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								  IWDG_ReloadCounter();
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								}
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