单片机例程(7)

单片机例程

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;

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单片机例程

D = 1;

MotorStep = 3; TIM=0; } break;

case 3: //BC if(TIM) {

A = 1; b = 0; C = 0; D = 1;

MotorStep = 4; TIM=0; } break; case 4: //C if(TIM) {

A = 1; b = 1; C = 0; D = 1;

MotorStep = 5; TIM=0; } break; case 5: //CD if(TIM) {

A = 1; b = 1; C = 0; D = 0;

MotorStep = 6; TIM=0; } break; case 6: //D if(TIM) {

//0xf6 //0xf4 //0xfc I Believe I Can Do 32

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单片机例程

A = 1; b = 1; //0xf8 C = 1; D = 0;

MotorStep = 7; TIM=0; } break; case 7: //DA if(TIM) {

A = 0; b = 1; 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(); }

//0xf9 I Believe I Can Do 33

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单片机例程

}

/************************************************ * * * 定时中断延时 * ************************************************/ void Tzd(void) interrupt 1 {

TH0 = 0xfe; //11.0592 TL0 = 0x33; if( CT++==speed) {TIM=1; CT=0; } }

/*************************************************************************************

* 十九 标题: 步进电机试验三（加减速运行）

*

* *

* 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) *

* *

* 请学员一定要消化掉本例程 *

**************************************************************************************/

#include \

void delay();

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单片机例程

//Motor

sbit F1 = P1^0; sbit F2 = P1^1; sbit F3 = P1^2; sbit F4 = P1^3;

unsigned char code FFW[8]={0xf1,0xf3,0xf2,0xf6,0xf4,0xfc,0xf8,0xf9}; //反转 unsigned char code FFZ[8]={0xf9,0xf8,0xfc,0xf4,0xf6,0xf2,0xf3,0xf1}; //正转 unsigned int K, rate;

/********************************************************** * * * 步进电机驱动 * ***********************************************************/ void motor_ffw() {

unsigned char i;

for (i=0; i<8; i++) //一个周期转30度 {

P1 = FFW[i]&0x1f; //取数据

delay(); //调节转速 } }

/******************************************** 延时程序

*********************************************/

void delay()

{ unsigned int k,t; t=rate; while(t--) {

for(k=0; k<100; k++) { } } }

/********************************************************

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