head.h

51单片机的步进电机驱动程序

//********* interrupt entry ***********
// 0   EXTERNAL INT 0   0003h
// 1   TIMER/COUNTER 0  000Bh
// 2   EXTERNAL INT 1   0013h
// 3   TIMER/COUNTER 1  001Bh
// 4   SERIAL PORT      0023h
//**************************************

//*** 函数定义***
void long_delay(void); 							//长延时
void short_delay(void); 						//短延时
void delay5p5ms(unsigned char); 					//10MS延时KEY_
void write7279(unsigned char, unsigned char);	//写HD7279
unsigned char read7279(unsigned char);			//读HD7279
void send_byte(unsigned char); 					//发送一个字节
unsigned char receive_byte(void); 				//接收一个字节
void data_shift(unsigned char *p,unsigned char );
void key_int(void);
void int0_serv( void )  ;				//key and led show
void stepping(unsigned char delay_n );

//*** 数码管显示