51 single chip microcomputer stepping motor control system based on LabVIEW upper computer (upper computer code + lower computer source code + ad schematic + 51 complete development environment)

Functional specifications ：
1. The running state of the stepping motor passes VISA The serial port is transmitted to the upper computer in real time , The upper computer displays in a curve , And can store data .
2. The upper computer can send the running angle of the stepping motor 、 Speed command to the lower computer , Control stepping motor .
3. Press the key to control the forward and reverse rotation and speed regulation of the motor .
4.labview Sure excel or txt Store motor operation data in format , And read the reproduced operation curve （ Data playback function ）.

matters needing attention ：

Lower processor ：STC89C51/STC89C52

Upper computer ：Labview2018+VISA A serial port

Press the key to control the stepping motor

Chinese notes of relevant pin connection ：

#include<reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int

#define MotorData P0 // Stepper motor control interface definition 
uchar phasecw[4] ={
    0x08,0x04,0x02,0x01};// Positive rotation   Motor conduction phase sequence  D-C-B-A
uchar phaseccw[4]={
    0x01,0x02,0x04,0x08};// reverse   Motor conduction phase sequence  A-B-C-D
uchar motor_state=0;			//0  stop  1 Positive rotation  2 reverse 
uchar motor_speed=5;			//5-25  fast - slow 

sbit key1=P1^1;  // Forward button 
sbit key2=P1^2;  // Reverse key 
sbit key3=P1^0;	 // Speed regulation key 

Main function program ：

void 
main(void)
{
    
 Delay_xms(50);					// Wait for the system to stabilize 
 Timer_Init();					// Initialize the timer 
 while(1)
 {
    
   key_scan();	  								// Scan button 
   if(motor_state==0)	  MotorStop();  		// Stop turning 
   else if(motor_state==1)MotorCW(motor_speed); // Turn the angle clockwise 
   else if(motor_state==2)MotorCCW(motor_speed);// Turn the angle counterclockwise 
 }
}

The information contained is as follows ：

Screenshot of upper computer operation ：

See the comments section for links to all the information , Please leave a message if you have any questions ~
author ：amusen
Time ：2022.4
I wish good ！