qt210watchdog
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#include "myprintf.h"#define WTCON (*(volatile unsigned int *)0xE2700000) #define WTDAT (*(volatile unsigned int *)0xE2700004) #define WTCNT (*(volatile unsigned int *)0xE2700008) #define WTCLRINT (*(volatile unsigned int *)0xE270000C)#define VIC0VECTADDR27 (*(volatile unsigned int *)0xF200016C)#define VICINTENCLEAR (*(volatile unsigned long *)0xF2000014) #define VIC0INTENABLE(*(volatile unsigned long *)0xF2000010) #define VIC0INTSELECT(*(volatile unsigned long *)0xF2000F00) #define VIC0ADDR( *(volatile unsigned long *)0xF2000F00) int i=0;extern void IRQ(void);void watchdog_irq(){WTCLRINT=0x01;VIC0ADDR = 0;my_printf("\nwatchdog irq %d \n",i++);}void watchdog_init(char flag){VIC0VECTADDR27=(int)IRQ;VIC0INTSELECT&=~(1<<27);VIC0INTENABLE|=(1<<27);if(flag)//reset{WTCON=(1<<0)|(1<<2)|(1<<5)|(0x41<<8);WTDAT=0x8000;WTCNT=0x8000;my_printf("\n RESET %d \n");}else//irq{WTCON=(0<<0)|(1<<2)|(1<<5)|(0x41<<8);WTDAT=0x8000;WTCNT=0x8000;}}
