步进电机单双八拍1.doc

/* 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 /Motorsbit A = P10; /定义管脚sbit b = P11;sbit C = P12;sbit D = P13; /步进电机驱动unsigned char MotorStep=0;unsigned int MotorTimer = 0;unsigned int MotorDelay,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) inte