刚学的刮雨器编程

ID:525749 · 发表于 2019-5-1 21:28

//12M,T042us,19.80ms,9~       45       ?
//
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit PWM1=P3^0;
sbit KEY1=P2^6;
uint aa;
uint xx;
uint jiajainum;
/******************** ??1??@12.000MHz?? **************************/
void delay1ms(unsigned int a) //?? 0us
{
unsigned int b;
      while(a--)
      {
            for(b=0;b<600;b++);
      }
}
void tuoji_init()//50
{
TMOD = 0x01;
TH0 = 0x0FF;
TL0 = 0x0CE;
EA = 1;
ET0 = 1;
TR0 = 1;
PWM1=1;
}
void chudong_pwm(uchar temp1)
{
if(aa==temp1) // ??9-28-45(??90?,???,??90?);
  PWM1=0;
}

void keyscan()
{
            if(KEY1==0)//????1
      {
            delay1ms(3);
            if(KEY1==0)
            {
                     while(!KEY1);
                     //xx++;

            }
}       }
void main()
{
xx=9;
tuoji_init();
while(1)
{
      keyscan();
      if(xx>45)
      {
            xx=9;
      }

}

}

void dingshi0() interrupt 1
{
TH0 = 0x0FF;
TL0 = 0x0CE;
      chudong_pwm(xx);
aa++;
jiajainum++;
if(jiajainum>2000)
{
      jiajainum=0;
      xx++;
}
if(aa==387)
{
  aa=0;
  PWM1=1;
}
}

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