步进电机数码管显示转动代码

以下是步进电机数码管显示转动的代码示例：

#include <reg52.h>
#include <intrins.h>

#define uint unsigned int
#define uchar unsigned char

sbit LSA=P2^2;
sbit LSB=P2^3;
sbit LSC=P2^4;

sbit EN=P2^5;
sbit RW=P2^6;
sbit RS=P2^7;

sbit key=P3^4;

uchar code table[]={
    0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
    0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71
};

void delay(uint x)
{
    uint i,j;
    for(i=x;i>0;i--)
        for(j=110;j>0;j--);
}

void write_com(uchar com)
{
    RW=0;
    RS=0;
    P0=com;
    delay(5);
    EN=1;
    _nop_();    _nop_();
    EN=0;
}

void write_data(uchar dat)
{
    RW=0;
    RS=1;
    P0=dat;
    delay(5);
    EN=1;
    _nop_();
    _nop_();
    EN=0;
}

void init()
{
    write_com(0x38);
    write_com(0x0c);
    write_com(0x06);
    write_com(0x01);
}

void display(uchar num,uchar speed)
{
    uchar i;
    for(i=0;i<speed;i++)
    {
        LSA=table[num/1000];
        LSB=table[num%1000/100];
        LSC=table[num%100/10];
        write_data(table[num%10]);
        delay(1000);
        write_com(0x01);
    }
}

void main()
{
    uchar speed=10;
    uint num=0;
    init();
    while(1)
    {
        display(num,speed);
        num++;
        if(num==10000)
            num=0;
    }
}