EP9315 watchdog GPIO 矩阵键盘相关
#define WDCONTROL_DISABLE 0xAA55
#define WDCONTROL_ENABLE 0xAAAA
#define WDCONTROL_CLEAR0x5555
#define WDCONTROL_PLSDSN0x0040 //Pulse DIS
#define WDCONTROL_OVRID0x0020 //Software Overide Hardware WD Disable
#define WDCONTROL_SWDIS0x0010 //Software WD DIS
#define WDCONTROL_HWDIS0x0008 //Hardware WD Disable
#define WDCONTROL_URST0x0004 //User reset bit
#define WDCONTROL_3KRST0x0002 //3Key reset bit
#define WDCONTROL_WD0x0001 //WD reset bit
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