stepmachine.c

含有大量的单片机代码

#include <reg51.h>
#define DL 500
#define DR 1
#define uchar unsigned char
#define uint unsigned int 


void dlms(uint x)
{
uint i;
uint j;
for(i=0;i<x;i++)
  for(j=0;j<1000;j++);

}

void ctrl(cf,n)
bit cf;
uint n;
{

uint i;
uchar j=0x08;
if(cf == 0)
for(i=0;i<n;i++)
{
  P3 =j;
  P2=j;
  dlms(DL);
  j = j<<1;
  if((j^0x40)==0)
  j = 0x08;

}
else
{for(i=0;i<n;i++)
  {
    P3 =j;
	P2=j;
    dlms(DL);
    j = j>>1;
    if((j^0x04)==0)
    j = 0x20;

  }
}

}


void main()
{
if(DR == 1) 
ctrl(1,100);
else
ctrl(0,100);


}