1、/* 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) * * 请学员一定要消化掉本例程 */ #include “reg52.h“/Motorsbit F1 = P10;sbit F2 = P11;sbit F3 = P12;sbit F4 = P13;/步进电机驱动unsigned char MotorStep=0;unsigned int MotorTimer = 0;unsigned int MotorDelay,Speed=1,TIM,CT;/* 初始化马达
2、*/void InitMotor()F1 = 1;F2 = 1;F3 = 1;F4 = 1;void SetMotor()/ if(Speed = 0) return;MotorDelay=Speed;switch(MotorStep)case 0:if(TIM) / A F1 = 0; /0xf1 F2 = 1;F3 = 1;F4 = 1;MotorStep = 1;TIM=0;break;case 1: / ABif(TIM)F1 = 0; /0xf3 F2 = 0;F3 = 1;F4 = 1;MotorStep = 2;TIM=0;break;case 2: /Bif(TIM)F1 =
3、1;F2 = 0; /0xf2 F3 = 1;F4 = 1;MotorStep = 3;TIM=0;break;case 3: /BCif(TIM)F1 = 1;F2 = 0; /0xf6F3 = 0;F4 = 1;MotorStep = 4;TIM=0;break;case 4: /Cif(TIM)F1 = 1;F2 = 1; /0xf4F3 = 0;F4 = 1;MotorStep = 5;TIM=0;break;case 5: /CDif(TIM)F1 = 1;F2 = 1; /0xfcF3 = 0;F4 = 0;MotorStep = 6;TIM=0;break;case 6: /Di
4、f(TIM)F1 = 1;F2 = 1; /0xf8F3 = 1;F4 = 0;MotorStep = 7;TIM=0;break;case 7: /DAif(TIM)F1 = 0;F2 = 1; /0xf9F3 = 1;F4 = 0;MotorStep = 0;TIM=0;break;void system_Ini()TMOD|= 0x11;TH0=0xDC; /11.0592MTL0=0x00;IE = 0x8A;TR0 = 1;main() system_Ini();InitMotor();while(1)SetMotor();/* * 定时中断延时 */void Tzd(void) interrupt 1TH0 = 0xfe; /11.0592TL0 = 0x33;if( CT+=10) TIM=1;CT=0;
