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justhomework/MCU/MCU_3 _TIM_Interrupt/main.c

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2022-03-30 13:26:30 +00:00
#include <reg52.h>
#include <intrins.h>
#include "delay.h"
unsigned long int count = 0;
unsigned char var = 0xFF;
#define RELOAD (65535-46080)
int TH, TL;
unsigned char enable = 0;
void setConfig()
{
TH = RELOAD / 256;
TL = RELOAD - (RELOAD / 256) * 256;
TH0 = TH;
TL0 = TL;
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
TR0 = 1; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>0
EA = 1; //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6>ܿ<EFBFBD><DCBF><EFBFBD>
ET0 = 1; //<2F>򿪶<EFBFBD>ʱ<EFBFBD><CAB1>0<EFBFBD>жϿ<D0B6><CFBF><EFBFBD>
P1 = 0X00;
}
void pulse() interrupt 1
{
TL0 += TL;
TL0 += 19;
enable = 1;
count++;
}
void ifLight()
{
if(enable)
{
int time;
for(time = 1; time < 9; time++) //ʱ<><CAB1>ƥ<EFBFBD><C6A5>
{
if(count % (20 * time) == 0) //<2F>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
int i = 1;
i = i << (time - 1);
var = var ^ i;
P1 = var;
}
}
enable = 0;
}
}
int main()
{
//P1 <20><>
setConfig();
while(1)
{
ifLight();
}
}