#define WDCONTROL_DISABLE 0xAA55
#define WDCONTROL_ENABLE 0xAAAA
#define WDCONTROL_CLEAR 0x5555
#define WDCONTROL_PLSDSN 0x0040 //Pulse DIS
#define WDCONTROL_OVRID 0x0020 //Software Overide Hardware WD Disable
#define WDCONTROL_SWDIS 0x0010 //Software WD DIS
#define WDCONTROL_HWDIS 0x0008 //Hardware WD Disable
#define WDCONTROL_URST 0x0004 //User reset bit
#define WDCONTROL_3KRST 0x0002 //3 Key reset bit
#define WDCONTROL_WD 0x0001 //WD reset bit
------解决方案--------------------
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