步进电机、直流电机正反转程序.doc

步进电机#include#define uchar unsigned char#define uint unsigned intuchar code FFW=0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09;uchar code REV=0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01;sbit K1=P30;sbit K2=P31;sbit K3=P32;/延时void delay_ms(uint x)uchar t;while(x-)for(t=0;t120;t+);/正转void step_motor_ffw(uchar n)uchar i,j;for(i=0;i5*n;i+)for(j=0;j8;j+)if(K3=0)break;P1=FFWj;delay_ms(25);/反转void step_motor_rev(uchar n)uchar i,j;for(i=0;i5*n;i+)for(j=0;j8;j+)if(K3=0)break;P1=REVj;delay_ms(25);/主函数void main() uchar N=3; while(1) if(K1=0) P0=0xfe; step_motor_ffw(N); if(K3=0) break; else if(K2=0) P0=0xfd; step_motor_rev(N); if(K3=0) break; else P0=0xfb; P1=0x03; 正反转#include#include#define INT8U unsigned char#define INT16U unsigned int#define S1_ON() (P3&(15)=0X00#define S2_ON()(P3&(16)=0X00#define S3_ON()(P3&(10;x-)_nop_();/主函数void main()int speed=200;while(1)if(S2_ON()P0=(1Stop);M_DIR=0;M_PWM=0;continue;if(S1_ON()M_DIR=0;P0=(1Forward);if(Key_INC=0)speed=speed0?speed:0;M_PWM=1;delay_us(speed);M_PWM=0;delay_us(400-speed);PWM控制#include#include#define uchar unsigned char#define uint unsigned intchar flag=1;sbit pwmout=P20;unsigned char count1=0,count2=0,count;sbit ICL7135_POL=P35;sbit ICL7135_BUSY=P32; /接外部中断口sbit ICL7135_CLK=P34; /接计数器口 int ICL7135_count; /计数存储单元/uint ICL7135_out; /A转D后数据的10000倍，存于此单元bit ICL7135_flag; /输出正负的位标志float ICL7135_ref=5.0; /定义基准电压变量，方便修改void Init() /初始化子程序TMOD=0x25; /T0工作于计数模式EA=1;TL0=0;TH0=0;EX0=1;IT0=1;/下降沿触发ET1=1;TH1=200;TL1=200;TR1=1;void main()Init(); /初始化ICL7135while(1)while(ICL7135_BUSY=0);TR0=1;void int0() interrupt 0float a; /浮点型转整型中间变量TR0=0; /停止计数ICL7135_count=TH0*256+TL0; /16方式计得的数ICL7135_flag=ICL7135_POL; /判断输出是正是负a=ICL7135_count-10000; / 正向积分为10000个脉冲ICL7135输出放大10000倍后的采样值 if(a0) /此句是为了避免因计数误差而导致a0而出现的错误显示。（前提ICL7135_count必须为有符号变量） a=0;/ICL7135_out=a; /浮点型转整型。count=(a/10000)*255;TL0=0; /重新转载数据 TH0=0; void timer1() interrupt 3if(count1count)count1