从单片机入门到头秃——第一战设计一个步进电机电路

ID:752460 · 发表于 2020-5-15 16:45

#include<reg51.h>

unsigned char code BeatCode[8] = {
      0xE, 0xC, 0xD, 0x9, 0xB, 0x3, 0x7, 0x6
};
void delay();

void main()
{
      unsigned char tmp;
      unsigned char index = 0;

while (1)
{
      tmp = P2;
      tmp = tmp & 0xF0;
      tmp = tmp | BeatCode[index];
      P2 = tmp;
      index++;
      index = index & 0x07;
      delay();
}
}

void delay()
{
      unsigned int i = 200;

      while(i--);
}

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