/*************************************************************************************
*标题:步进电机试验一 *
**
* 通过本例程了解步进马达使用及驱动程序编写 *
*; 单双八拍工作方式： *
*; A-AB-B-BC-C-CD-D-DA (即一个脉冲,转 3.75 度) *
* J14短路冒需断开 *
*请学员一定要消化掉本例程 *
*
**************************************************************************************/
#include "reg52.h"
//Motor
sbit A = P1^0; //定义管脚
sbit b = P1^1;
sbit C = P1^2;
sbit D = P1^3;
///
//步进电机驱动
unsigned char MotorStep=0;
unsigned intMotorTimer = 0;
unsigned intMotorDelay,Speed=1,TIM,CT;
#define speed 8 // 调整速度 数值不要设的太低 低了会引起震动。
/*****************************************************
* 初始化马达 *
******************************************************/
void InitMotor()
{
A = 1;
b = 1;
C = 1;
D = 1;
}
void SetMotor()
{
//if(Speed == 0) return;
MotorDelay=Speed; //调整速度
switch(MotorStep)
{
case 0:
if(TIM) // A
{
A = 0;//0xf1
b = 1;
C = 1;
D = 1;
MotorStep = 1;
TIM=0;
}
break;
case 1:// AB
if(TIM)
{
A = 0; //0xf3
b = 0;
C = 1;
D = 1;
MotorStep = 2;
TIM=0;
}
break;
case 2: //B
if(TIM)
{
A = 1;
b = 0;//0xf2
C = 1;
D = 1;
MotorStep = 3;
TIM=0;
}
break;
case 3://BC
if(TIM)
{
A = 1;
b = 0;//0xf6
C = 0;
D = 1;
MotorStep = 4;
TIM=0;
}
break;
case 4://C
if(TIM)
{
A = 1;
b = 1;//0xf4
C = 0;
D = 1;
MotorStep = 5;
TIM=0;
}
break;
case 5: //CD
if(TIM)
{
A = 1;
b = 1;//0xfc
C = 0;
D = 0;
MotorStep = 6;
TIM=0;
}
break;
case 6: //D
if(TIM)
{
A = 1;
b = 1;//0xf8
C = 1;
D = 0;
MotorStep = 7;
TIM=0;
}
break;
case 7: //DA
if(TIM)
{
A = 0;
b = 1;//0xf9
C = 1;
D = 0;
MotorStep = 0;
TIM=0;
}
break;
}
}
void system_Ini()
{
TMOD|= 0x11;
TH0=0xDC; //11.0592M
TL0=0x00;
IE = 0x8A;
TR0= 1;
}
main()
{ system_Ini();
InitMotor();
while(1)
{
SetMotor();
}
}
/************************************************
* *
* 定时中断延时 *
************************************************/
void Tzd(void) interrupt 1
{
TH0 = 0xfe; //11.0592
TL0 = 0x33;
if( CT++==speed)
{TIM=1;
CT=0;
}
}
