大家好，又见面了，我是你们的朋友全栈君。
这是一款51单片机控制步进电机正反转的程序，同时还能实现调速。
#include”reg51.h“
#include “intrins.h”
#define uchar unsigned char
#define uint unsigned int
#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};
unsigned char code FFW［8］={0xfe，0xfc，0xfd，0xf9，0xfb，0xf3，0xf7，0xf6}; //？？
unsigned char code REV［8］={0xf6，0xf7，0xf3，0xfb，0xf9，0xfd，0xfc，0xfe}; //？？
//unsigned char code FFW［8］={0x01，0x03，0x02，0x06，0x04，0x0c，0x08，0x09}; //？？
//unsigned char code REV［8］={0x09，0x08，0x0c，0x04，0x06，0x02，0x03，0x01}; //？？
sbit K1 = P3^2; //？？？？？
sbit K2 = P3^3; //？？？？
sbit K3 = P3^4; //？？？？
sbit K4 = P3^5; //？？？？
sbit LCD_RS = P2^0;
sbit LCD_RW = P2^1;
sbit LCD_EN = P2^2;
bit on_off=0; //？？？？？？？
bit direction=1; //？？？？
bit rate_dr=1; //？？？？
bit snum_dr=1; //？？？？
uchar code cdis1［ ］ = {“NO.0738230126 ”};
uchar code cdis2［ ］ = {“ 2012/5/24”};
uchar code cdis3［ ］ = {“ STOP ”};
uchar code cdis4［ ］ = {“NUM： RATE： ”};
uchar code cdis5［ ］ = {“ RUNNING ”};
uchar m，v=0，q=0;
uchar number=0，number1=0;
uchar snum=20，snum1=20; //？？？？？
uchar rate=3; //？？？？？
uchar data_temp，data_temP0，data_temp2;
void delay(uint t)
{
uchar k;
while(t–)
{
for(k=0; k《124; k++)
{ }
}
}
void delayB(uchar x) //x*0.14MS
{
uchar i;
while(x–)
{
for (i=0; i《13; i++)
{ }
}
}
bit lcd_busy()
{
bit result;
LCD_RS = 0;
LCD_RW = 1;
LCD_EN = 1;
delayNOP();
result = (bit)(P0&0x80);
LCD_EN = 0;
return(result);
}
void lcd_wcmd(uchar cmd)
{
while(lcd_busy());
LCD_RS = 0;
LCD_RW = 0;
LCD_EN = 0;
_nop_();
_nop_();
P0 = cmd;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
void lcd_wdat(uchar dat)
{
while(lcd_busy());
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 0;
P0 = dat;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
void lcd_init()
{
delay(30);
lcd_wcmd(0x38); //16*2？？，5*7？？，8？？？
delay(5);
lcd_wcmd(0x38);
delay(5);
lcd_wcmd(0x38);
delay(5);
lcd_wcmd(0x0c); //？？？，？？？
delay(5);
lcd_wcmd(0x06); //？？？？
delay(5);
lcd_wcmd(0x01); //？？LCD？？？？？
delay(5);
}
void lcd_pos(uchar pos)
{
lcd_wcmd(pos | 0x80); //？？？？=80+？？？？
}
void LCD_init_DIS()
{
delay(10); //？？
lcd_init(); //？？？LCD
lcd_pos(0); //？？？？？？？？？？？？1？？？
m = 0;
while(cdis1［m］ ！= ‘’)
{ //？？？？
lcd_wdat(cdis1［m］);
m++;
}
lcd_pos(0x40); //？？？？？？？？？？？1？？？
m = 0;
while(cdis2［m］ ！= ‘’)
{
lcd_wdat(cdis2［m］); //？？？？
m++;
}
delay(3000); //？？
lcd_pos(0); //？？？？？？？？？？？？1？？？
m = 0;
while(cdis3［m］ ！= ‘’)
{ //？？？？
lcd_wdat(cdis3［m］);
m++;
}
lcd_pos(0x40); //？？？？？？？？？？？1？？？
m = 0;
while(cdis4［m］ ！= ‘’)
{
lcd_wdat(cdis4［m］); //？？？？
m++;
}
for(m=0;m《2;m++)
{
lcd_pos(0x0c+m); //？？？？？？
lcd_wdat(0x3e);
}
}
void data_conv()
{
data_temP0=data_temp/10; //？？
if(data_temP0==0)
{data_temP0=0x20;} //？？？0？？？
else
{data_temP0=data_temP0+0x30;}
data_temp2=data_temp; //？？
data_temp2=data_temp2+0x30;
}
void data_dis()
{
data_temp = snum; //？？？？
data_conv();
lcd_pos(0x44);
lcd_wdat(data_temP0);
lcd_pos(0x45);
lcd_wdat(data_temp2);
data_temp = rate; //？？？？
data_conv();
lcd_pos(0x4d);
lcd_wdat(data_temP0);
lcd_pos(0x4e);
lcd_wdat(data_temp2);
}
void motor_DR()
{
if(di
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/146240.html原文链接：https://javaforall.net
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