70 lines
983 B
C
70 lines
983 B
C
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#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; //ʹ<>ö<EFBFBD>ʱ<EFBFBD><CAB1>T0<54><30><EFBFBD><EFBFBD>4λȫΪ0,<2C><>4λGATE=0<><30>C/T=0<><30><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><C3B9><EFBFBD><EFBFBD><EFBFBD>ʽ1<CABD><31>M1=0,M1=1
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TR0 = 1; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>0
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EA = 1; //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6>ܿ<EFBFBD><DCBF><EFBFBD>
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ET0 = 1; //<2F><EFBFBD>ʱ<EFBFBD><CAB1>0<EFBFBD>жϿ<D0B6><CFBF><EFBFBD>
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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++) //ʱ<><CAB1>ƥ<EFBFBD><C6A5>
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{
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if(count % (20 * time) == 0) //<2F>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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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 <20><>
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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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