51控电机，可以控两台不能控4台。

只看该作者 · 2016-11-24 23:26

下面是我的Proteus仿真图跟程序，希望大神给意见或指错。
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int

sbit PWM11 = P1^0;    //motor1 引脚
sbit PWM12 = P1^1;
sbit PWM13 = P1^2;
sbit PWM14 = P1^3;
sbit key11 = P1^4;
sbit key12 = P1^5;
sbit key13 = P1^6;
sbit key14 = P1^7;

/* sbit PWM21 = P0^0;    //motor2 引脚
sbit PWM22 = P0^1;
sbit PWM23 = P0^2;
sbit PWM24 = P0^3;
sbit key21 = P0^4;
sbit key22 = P0^5;
sbit key23 = P0^6;
sbit key24 = P0^7; */

sbit stop_key2 = P2^0;
sbit stop_key1 = P2^1;
sbit FMQ =  P3^6;

uchar ZKB1,ZKB2,ZKB3,ZKB4,ZKB21,ZKB22,ZKB23,ZKB24;

void delaynms(uint z)
{
  uint i,j;
  for(i = z;i > 0;i--)
   for(j = 110;j > 0;j--);

}

void beep(void)
{
  uchar t;
  for(t=0;t<100;t++)
  {
delaynms(1);
FMQ=!FMQ;          //产生脉冲
  }
  FMQ=1;             //关闭蜂鸣器
  delaynms(300);
}

void main(void)
{
  TR0=0;                //关闭定时器0,1
  TR1=0;
  TMOD=0x01;             //定时器0，工作方式1
  TH0=(65526-100)/256;
  TL0=(65526-100)%256; //100us即0.01ms中断一次
  TH1=(65536-100)/256;
  TL0=(65536-100)%256;
  EA=1;                //开总中断
  ET0=1;                //开定时器0中断
  TR0=1;                //启动定时器T0
  ZKB1=3;             //占空比初值设定
  ZKB2=3;             //占空比初值设定
  ZKB3=3;
  ZKB4=3;
  while(1)
  {
   if(!key11) //电机11正转
   {
   delaynms(10);                      //消抖
   if(!key11)                         //确定按键按下
      {
   if(ZKB1 == 0)                   //停在最大转速
      ZKB1 = 0;
      beep();
      ZKB1--;                         //减少ZKB1
      }
   }

   if(!key12)    //电机11反转
   {
   delaynms(10);
   if(!key12)
   {
      if(ZKB2 == 0)
      ZKB2 = 0;
      beep();
      ZKB2--;
}
   }

   if(!key13) //电机12正转
   {
      delaynms(10);
if(!key13)
{
   if(ZKB3 == 0)
      ZKB3 = 0;
   beep();
   ZKB3--;
}
   }

   if(!key14)    //motor12反转
   {
      delaynms(10);
if(!key14)
{
   if(ZKB4 == 0)
      ZKB4 = 0;
   beep();
   ZKB4--;
}
   }

/*    if(!key21) //电机21正转
   {
   delaynms(10);                      //消抖
   if(!key21)                         //确定按键按下
      {
   if(ZKB21 == 0)                   //停在最大转速
      ZKB21 = 0;
      beep();
      ZKB21--;                         //减少ZKB1
      }
   }

   if(!key22)    //电机21反转
   {
   delaynms(10);
   if(!key22)
   {
      if(ZKB22 == 0)
      ZKB22 = 0;
      beep();
      ZKB22--;
}
   }

   if(!key23) //电机22正转
   {
      delaynms(10);
if(!key23)
{
   if(ZKB23 == 0)
      ZKB23 = 0;
   beep();
   ZKB23--;
}
   }

   if(!key24)    //motor22反转
   {
      delaynms(10);
if(!key24)
{
   if(ZKB24 == 0)
      ZKB24 = 0;
   beep();
   ZKB24--;
}
   }    */
   if(stop_key1 == 0)    //motor1停车
   {
   ZKB1 = 3;
   ZKB2 = 3;
   ZKB3 = 3;
   ZKB4 = 3;
   }
   if(stop_key2 == 0)    //motor2停车
   {
   ZKB21 = 3;
   ZKB22 = 3;
   ZKB23 = 3;
   ZKB24 = 3;
   }

}
}

void time0(void) interrupt 1
{
static uchar N=0;
  TH0=(65526-100)/256;
  TL0=(65526-100)%256;
  N++;
  if(N>3)
   N = 0;

  if(N<=ZKB1)       //电机11 PWM
PWM11 = 0;
  if(N > ZKB1)
PWM11 = 1;
  if(N<=ZKB2)
PWM12 = 0;
  if(N > ZKB2)
PWM12 = 1;

  if(N<=ZKB3)    //电机12 PWM
PWM13 = 0;
  if(N > ZKB3)
PWM13 = 1;
  if(N<=ZKB4)
PWM14 = 0;
  if(N > ZKB4)
PWM14 = 1;

}

/* void T1_time1(void) interrupt 1
{
  static uchar n=0;
  TH1=(65526-300)/256;
  TL1=(65526-300)%256;
  n++;
  if(n>3)
   n = 0;

  if(n<=ZKB21)       //电机21 PWM
PWM21 = 0;
  if(n > ZKB21)
PWM21 = 1;
  if(n<=ZKB22)
PWM22 = 0;
  if(n > ZKB22)
PWM22 = 1;

  if(n<=ZKB23)    //电机22 PWM
PWM23 = 0;
  if(n > ZKB23)
PWM23 = 1;
  if(n<=ZKB24)
PWM24 = 0;
  if(n > ZKB24)
PWM24 = 1;
}  */