| 基于C#的上位机编程程序，通过上位机控制下位机实现电脑操作控制步进电机的转动 |
程序
#include<reg52.h>#define uchar unsigned char#define uint unsigned int#include "2401.h"#include "delay.h"#include "ds18b20.h"sbit IN1=P1^0; sbit IN2=P1^1; sbit ENA=P1^2; //位定义L298M芯片使能端ENAsbit led0=P2^0; //正转指示灯sbit led1=P2^1; //反转指示灯sbit led2=P2^2; //加速指示灯sbit led3=P2^3; //减速指示灯sbit led4=P2^4; //开始指示灯sbit led5=P2^5; //停止指示灯uint v[1];uint i,Time1num=0;uint song[1];uint j; void delay_ms(uint z) //延时函数 {uint y;while(z--)for(y=110;y>0;y--);} uchar k,m;uint x=3,y=7; void pwm(uint i,uint j) //pwm调速{ ENA=1;delay_ms(i);ENA=0; //电机停转delay_ms(j);}void UART_init (void){//UART串口初始化函数TMOD = 0x21; //定时器T/C1工作方式2SCON = 0x50; //串口工作方式1，允许串口接收（SCON = 0x40 时禁止串口接收）TH1 = 0xfD; //定时器初值高8位设置TL1 = 0xfD; //定时器初值低8位设置TH0 = (65536-50000)/256;TL0 = (65536-50000)%256;PCON = 0; //波特率倍频//PCON = 0;TR1 = 1; //定时器启动 TR0 = 1; //定时器启动 EA=1;ES=1;ET0=1;PT0=1;//PS=1;
} void main(){UART_init ();while(1){ if(k==0xfa){x=10;y=0;pwm(x,y);}if(k==0xc8){ x=8;y=2;pwm(x,y); }if(k==0x96){ x=6;y=4;pwm(x,y);}if(k==0x64){ x=4;y=6;pwm(x,y);}if(k==0x32){ x=2;y=8;pwm(x,y);}if(k==0x01) //正转{ IN1=0;IN2=1;led0=0;x=2;y=8;pwm(x,y);}if(k==0x02) //反转{IN1=1;IN2=0;led1=0;x=2;y=8;pwm(x,y);}if(k==0x03) //停转{IN1=0;IN2=0;x=0;}if(k==0x81) //加速{led2=0;pwm(x,y);}if(k==0x82) //减速{ led3=0;pwm(x,y);}if(k==0x06) //全速{ x=10;y=0;led5=0;pwm(x,y);}}} void SIO_ISR() interrupt 4{k=SBUF; RI=0;if(k==0x81){x=x+2;y=10-x; if(x>10){x=10;y=0;}if(x<0){x=0;y=10;}}if(k==0x82){x=x-2;y=10-x;if(x>10){x=10;y=0;}if(x<0){x=0;y=10;}}} void int_1() interrupt 1
{TH0=(65536-50000)/256;TL0=(65536-50000)%256;Time1num++;if(Time1num==5)
)
