File size: 547 Bytes
7f48c90 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | #include<reg52.h>
//sbit LED1 = P2^0;
//sbit LED2 = P2^1;
//sbit LED3 = P2^2;
//sbit LED4 = P2^3;
//sbit LED5 = P2^4;
//sbit LED6 = P2^5;
//sbit LED7 = P2^6;
//sbit LED8 = P2^7;
unsigned char i;
void main(){
TMOD = 0x01;//T0 fangshi 1 dingshi
TR0 = 1;//qidong
i = 10;//20
P1 = 0xF0;
while(1){
TH0 = 15536/256;//gaobawei chuzhi
TL0 = 15536%256;//dibawei chuzhi
while(TF0 == 0);//waiting for yichu
TF0 = 0;//TF ruanjianqingling
i--;//yigezhouqishi 100ms xitongshizhong 6MHZ
if (i==0){
P1 = ~P1;//qufan
i = 10;//20
}
}
}
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