Single chip microcomputer four-wire stepper motor driver

MCU four-wire stepper motor driver function:

When SW1 is pressed, the stepper motor rotates forward, and when SW2 is pressed, the stepper motor rotates reversely. The rotation speed and rotation angle of each pulse can be adjusted arbitrarily according to the source code.

The program reference source code is as follows:

/C language program:/

#include // Available very successfully.

#define uchar unsigned char

#define uint unsigned int

uchar table_begin;

uint maichong; //pulse

uchar zhuansu; //speed

uchar flag; //direction

sbit key_fuwei=P3^0; //Reset key

sbit key_z=P3^1; //Forward key

sbit key_f=P3^2; //Reverse key

sbit key_jia=P3^3; //Accelerator key

sbit key_jian=P3^6; //deceleration key

sbit A1=P2^0;

sbit A2=P2^1;

sbit A3=P2^2;

sbit A4=P2^3;

void display();

void delayms(xms);

void delay(uchar x)

{undefined

uchar i,j; //delay

for(i=0;ifor(j=100;j>0;j–);

}

void fuwei(void) //reset

{undefined

flag=2;

zhuansu=0;

}

/*void Display(void) //display

{undefined

unsigned char b1, b2;

b1=zhuansu/10;

b2=zhuansu%10;

if(flag == 0) //0

P0=0x71; //Display F

else

P0=0x79;

A1=0;

delayms(3);

A1=1;

    P0=0x40;

    A2=0; //Display--

    delayms(3);

    A2=1;

    P0=table2[b1];

    A3=0; //Display tens digit

    delayms(3);

    A3=1;

    P0=table2[b2];

    A4=0;

    delayms(3); //display the units digit

    A4=1;

1

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4

5

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7

8

9

10

11

12

13

14

} */

void display()

{undefined

uchar b1,b2,b3,b4;

if(flag0)

P0=0x71; //Display F

else

P0=0x79;

if(flag1)

P0=0x7c; //display b

else

P0=0x71;

b1=10;

b2=0x3f;

b3=zhuansu/10;

b4=zhuansu%10;

//P0=table2;

A1=0; //P2.0

delay(1);

A1=1;

P0=b2;

A2=0; //P2.1

delay(1);

A2=1;

P0=table2[b3];

A3=0; //P2.3

delay(1);

A3=1;

P0=table2[b4];

A4=0; //P2.4

delay(1);

A4=1;

}

void key() //Key scan

{undefined

if(key_fuwei0)

{

delay(5);

if(key_fuwei0)

fuwei();

}

if(key_z0)

{

delay(5);

if(key_z0)

{undefined

flag=0;

zhuansu=10;

while(key_z0);

}

}

if(key_f0)

{undefined

delay(5);

if(key_f0)

{

flag=1;

zhuansu=10;

while(key_f0);

}

}

if(key_jia0)

{

delay(5);

if(key_jia0)

{undefined

zhuansu++;

if(zhuansu21)

zhuansu=20;

while(key_jia0);

}

}

if(key_jian0)

{

delay(5);

if(key_jian0)

{undefined

zhuansu–;

if(zhuansu<=0)

zhuansu=0;

while(key_jian==0);

}

}

}

void dispose() //Pulse function

{undefined

switch (zhuansu)

{undefined

case 0: flag=2; break;

case 1: maichong=300; break;

case 2: maichong=295; break;

case 3: maichong=290; break;

case 4: maichong=280; break;

case 5: maichong=260; break;

case 6: maichong=240; break;

case 7: maichong=200; break;

case 8: maichong=180; break;

case 9: maichong=160; break;

case 10: maichong=120; break;

case 11: maichong=80; break;

case 12: maichong=70; break;

case 13: maichong=60; break;

case 14: maichong=40; break;

case 15: maichong=35; break;

case 16: maichong=30; break;

case 17: maichong=25; break;

case 18: maichong=20; break;

case 19: maichong=15; ​​break;

case 20: maichong=10; break;

}

if(flag0)

table_begin=0;

else

if(flag1)

table_begin=4;

}

void zhuandong(void)

{undefined

uint i,j;

if(zhuansu>0&&zhuansu<=20)

{undefined

for(j=0+table_begin;j<4+table_begin;j++)

{undefined

P1=table1[j];

for(i=0;idisplay();

}

}

}

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