key.h

基于51单片机控制步进电机的程序

sbit P2_0 =  P2^0 ;
sbit P2_1 =  P2^1 ;
sbit P2_2 =  P2^2 ;
sbit P2_3 =  P2^3 ;
sbit P2_4 =  P2^4 ;
sbit P2_5 =  P2^5 ;
sbit P2_6 =  P2^6 ;
sbit P2_7 =  P2^7 ;
sbit P3_2 =  P3^2 ;
sbit P3_3 =  P3^3 ;
sbit P3_4 =  P3^4 ;
sbit P3_5 =  P3^5 ;
sbit P3_6 =	 P3^6 ;

void delay(void);
unsigned char keyscan(void);
unsigned char keyin(void);
void first(void);
void second_0(void);
void second_1(void);
void second_2(void);
void second_3(void);
void count(unsigned char x,unsigned char y);
void suduset(void);

extern unsigned char zhengbujin;
extern unsigned char fanbujin;
extern unsigned char zhengjuli;
extern unsigned char fanjuli;
extern unsigned int czhengbujin;
extern unsigned int cfanbujin;
extern unsigned int czhengjuli;
extern unsigned int cfanjuli;
extern unsigned char csudu;
extern unsigned char a;
extern unsigned char b;
extern unsigned char c;
extern unsigned char d;