69 lines
983 B
C
69 lines
983 B
C
#include <reg52.h>
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#include <intrins.h>
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#include "delay.h"
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unsigned long int count = 0;
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unsigned char var = 0xFF;
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#define RELOAD (65535-46080)
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int TH, TL;
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unsigned char enable = 0;
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void setConfig()
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{
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TH = RELOAD / 256;
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TL = RELOAD - (RELOAD / 256) * 256;
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TH0 = TH;
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TL0 = TL;
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TMOD = 0x01; //使用定时器T0，高4位全为0,低4位GATE=0，C/T=0，采用工作方式1，M1=0,M1=1
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TR0 = 1; //启动定时器0
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EA = 1; //打开中断总开关
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ET0 = 1; //打开定时器0中断开关
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P1 = 0X00;
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}
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void pulse() interrupt 1
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{
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TL0 += TL;
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TL0 += 19;
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enable = 1;
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count++;
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}
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void ifLight()
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{
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if(enable)
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{
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int time;
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for(time = 1; time < 9; time++) //时间匹配
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{
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if(count % (20 * time) == 0) //是否整数倍
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{
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int i = 1;
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i = i << (time - 1);
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var = var ^ i;
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P1 = var;
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}
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}
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enable = 0;
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}
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}
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int main()
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{
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//P1 灯
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setConfig();
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while(1)
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{
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ifLight();
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}
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}
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