根据开发板例程修改定时器中断时间
#define D1 P00 // 指示灯 D1/*Timer0定时器定时20ms TIMER0_VALUE=26666Timer0定时器定时10ms TIMER0_VALUE=13333Timer0定时器定时5ms TIMER0_VALUE=6666Timer0定时器定时1ms TIMER0_VALUE=1333*/#define TIMER0_VALUE 13333 //10ms时的取值uint16_t count_ms=0; //软件计数变量Tms计数+1uint16_t count_s=0; //软件计数变量1s计数+1void IO_Init(void){P0DIR &= ~0x01;//配置 P0.0 为输出D1 = 1;//设置 D1 初始状态为熄灭}void Timer0Init(void){TMOD = 0x01;//16位定时器TH0 = (65536-TIMER0_VALUE)/256;//写入初值TL0 = (65536-TIMER0_VALUE)%256;ET0 = 1; //使能Timer0溢出中断EA = 1; //使能全局中断TR0 = 1; //启动Timer0}void main(void){IO_Init();//配置 IOTimer0Init();//Timer0 初始化while(1);//死循环，等待 Timer0 溢出中断}void Timer0_irq() interrupt INTERRUPT_T0{TH0=(65536-TIMER0_VALUE)/256; //写入初值TL0=(65536-TIMER0_VALUE)%256;count_ms++;//软件计数器加1if(count_ms%100==0) //1s定时 ：20ms时为50，10ms:100,5ms:200;1ms：1000{count_s++;} if(count_s==2) //2S定时{count_s=0;count_ms=0; //软件计数器清零 D1 = ~D1; //D1 指示灯状态取反}}
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