单片机控制步进电机protues仿真

2018-5-23 22:31

单片机控制步进电机protues仿真

2018-5-23 22:37

#include "reg52.h"

int delay();
void inti_lcd();
void show_lcd(int);
void cmd_wr();
void ShowState();
void clock(unsigned int Delay) ;
void DoSpeed();    //计算速度
//正转值
#define RIGHT_RUN 1
//反转值
#define LEFT_RUN 0
sbit RS=0xA0;
sbit RW=0xA1;
sbit E=0xA2;

char SpeedChar[]="SPEED(n/min):";
char StateChar[]="RUN STATE:";
char STATE_CW[]="CW";
char STATE_CCW[]="CCW";
char SPEED[3]="050";
unsigned int RunSpeed=50;             //速度
unsigned char RunState=RIGHT_RUN;  //运行状态
main()
{

      /*定时器设置*/
      TMOD=0x66;          //定时器0，1都为计数方式；方式2；
      EA=1;                      //开中断

      TH0=0xff;             //定时器0初值FFH；
      TL0=0xff;
      ET0=1;
      TR0=1;

      TH1=0xff;             //定时器1初值FFH；
      TL1=0xff;
      ET1=1;
      TR1=1;

      IT0=1;                      //脉冲方式
      EX0=1;                      //开外部中断0:加速
      IT1=1;                      //脉冲方式
      EX1=1;                      //开外部中断1:减速

inti_lcd();
DoSpeed();
ShowState();
while(1)
{
   clock(RunSpeed);
   P0=0x01;
}

}

//定时器0中断程序:正转
void t_0(void) interrupt 1
{
      RunState=RIGHT_RUN;
P0=1;
P1=0x01;
cmd_wr();
ShowState();
}

//定时器1中断:反转
void t_1(void) interrupt 3
{
      RunState=LEFT_RUN;
P0=0;
P1=0x01;
cmd_wr();
ShowState();

}

//中断0:加速程序
void SpeedUp() interrupt 0
{
   if(RunSpeed>=12)
      RunSpeed=RunSpeed-2;
   DoSpeed();
   P1=0x01;
   cmd_wr();
   ShowState();

}

//中断1:减速程序
void SpeedDowm() interrupt 2
{

if(RunSpeed<=100)
      RunSpeed=RunSpeed+2;
DoSpeed();
P1=0x01;
cmd_wr();
ShowState();


}

int delay()       //判断LCD是否忙
{
int a;
start:

RS=0;
RW=1;
E=0;
for(a=0;a<2;a++);
E=1;
P1=0xff;
if(P1^7==0)
   return 0;
else
   goto start;

}

void inti_lcd()  //设置LCD方式
{

P1=0x38;
cmd_wr();
delay();

P1=0x01;    //清除
cmd_wr();
delay();

P1=0x0f;
cmd_wr();
delay();

P1=0x06;
cmd_wr();
delay();

P1=0x0c;
cmd_wr();
delay();
}

void cmd_wr()          //写控制字
{
RS=0;
RW=0;
E=0;
E=1;
}

void show_lcd(int i) //LCD显示子程序
{
P1=i;
RS=1;
RW=0;
E=0;
E=1;

}

void ShowState() //显示状态与速度
{
int i=0;
while(SpeedChar[i]!='\0')
{
   delay();
   show_lcd(SpeedChar[i]);
   i++;
}

delay();
P1=0x80 | 0x0d;
cmd_wr();

i=0;
while(SPEED[i]!='\0')
{
   delay();
   show_lcd(SPEED[i]);
   i++;
}

delay();
P1=0xC0;
cmd_wr();

i=0;
while(StateChar[i]!='\0')
{
   delay();
   show_lcd(StateChar[i]);
   i++;
}

delay();
P1=0xC0 | 0x0A;
cmd_wr();

i=0;
if(RunState==RIGHT_RUN)
      while(STATE_CW[i]!='\0')
      {
      delay();
      show_lcd(STATE_CW[i]);
      i++;
      }
else
   while(STATE_CCW[i]!='\0')
      {
      delay();
      show_lcd(STATE_CCW[i]);
      i++;
      }

}
void clock(unsigned int Delay) //1ms延时程序
{  unsigned int i;
for(;Delay>0;Delay--)
for(i=0;i<124;i++);

}

void DoSpeed()
{
SPEED[0]=(1000*6/RunSpeed/100)+48;
SPEED[1]=1000*6/RunSpeed%100/10+48;
SPEED[2]=1000*6/RunSpeed%10+48;
}