ULN2003步進(jìn)電機(jī)只能接單片機(jī)P0口嗎

ID:213280 · 發(fā)表于 2018-12-5 23:24

如題，ULN2003步進(jìn)電機(jī)只能接單片機(jī)P0口嗎？接到其他IO口電機(jī)不轉(zhuǎn)動(dòng)，程序里也改為了其他IO口
#include<reg52.h>
#define uchar unsigned char
#define uint  unsigned int
#define MotorData P0                //步進(jìn)電機(jī)控制接口定義
uchar phasecw[4] ={0x08,0x04,0x02,0x01};//正轉(zhuǎn) 電機(jī)導(dǎo)通相序 D-C-B-A
uchar phaseccw[4]={0x01,0x02,0x04,0x08};//反轉(zhuǎn) 電機(jī)導(dǎo)通相序 A-B-C-D
//ms延時(shí)函數(shù)
void Delay_xms(uint x)
{
uint i,j;
for(i=0;i<x;i++)
  for(j=0;j<112;j++);
}
//順時(shí)針轉(zhuǎn)動(dòng)
void MotorCW(void)
{
uchar i;
for(i=0;i<4;i++)
  {
MotorData=phasecw[i];
Delay_xms(4);//轉(zhuǎn)速調(diào)節(jié)
  }
}
//逆時(shí)針轉(zhuǎn)動(dòng)
void MotorCCW(void)
{
uchar i;
for(i=0;i<4;i++)
  {
MotorData=phaseccw[i];
Delay_xms(4);//轉(zhuǎn)速調(diào)節(jié)
  }
}
//停止轉(zhuǎn)動(dòng)
void MotorStop(void)
{
MotorData=0x00;
}
//主函數(shù)
void main(void)
{
uint i;
Delay_xms(50);//等待系統(tǒng)穩(wěn)定
while(1)
{
  for(i=0;i<500;i++)
  {
MotorCW(); //順時(shí)針轉(zhuǎn)動(dòng)
  }
  MotorStop();  //停止轉(zhuǎn)動(dòng)
  Delay_xms(500);
  for(i=0;i<500;i++)
  {
MotorCCW();  //逆時(shí)針轉(zhuǎn)動(dòng)
  }
  MotorStop();  //停止轉(zhuǎn)動(dòng)
  Delay_xms(500);
}
}