51单片机控制步进电机硬件图及C语言编程(共12页).doc

51单片机控制步进电机硬件图#include /51芯片管脚定义头文件#include /内部包含延时函数 _nop_();#include#define uchar unsigned char#define uint unsigned intuchar code FFW8=0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09; /四相八拍正转编码uchar code REV8=0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01; /四相八拍反转编码sbit P14=P14; /将P14位定义为P1.4引脚sbit P15=P15; /将P15位定义为P1.5引脚sbit P16=P16; /将P16位定义为P1.6引脚sbit P17=P17; /将P17位定义为P1.7引脚sbit P20=P20;