项目六 基于stc89c52系列单片机控制步进电机

前言：作者想要帮助一些童鞋和爱好者进行项目构建，但自知能力有限，不喜可论，创作不易，勿喷。
系统采用stc89c51芯片进行的单片机控制步进电机，能够实现控制步进电机转动角度。上代码。
项目包含主要器件stc89c51 lcd1602 步进电机 矩阵按键
项目包含程序 原理图 PCB
main.c

#include 
#include <1602.c>

//#include 
unsigned int cp1,ds,mode,mode1;


bit	flash;

#include 
#include 

void motor_z(uint xx)
{
	int i;
	for(i = 0; i <= xx;i++)
	{
		P1 = 0xfe;
		delay(10);
		P1 = 0xfd;
		delay(10);
		P1 = 0xfb;
		delay(10);
		P1 = 0xf7;
		delay(10);
	}

}
void timer0_isr() interrupt 1
{
	TH0 = (65535 - 1000) / 255;
	TL0 = (65535 - 1000) % 255;
	if(mode1 == 0)cp1++;
	if(cp1 >= 60)
	{		
		mode1 = 1;	
		cp1 = 0;
	
	}

}

void timer0_init()
{
	TMOD = 0x01;
	TH0 = (65535 - 1000) / 256;
	TL0 = (65535 - 1000) % 256;
	EA = 1;
	ET0 = 1;
	TR0 = 1;
}
void main()
{	
uint xx;
	uint key_state = 0;
	uchar ara_index = 0;
	uchar ara_key[3] = {0};
//	uchar aa[3];
	F1602_init();
  F1602_clear();
	timer0_init();

	while(1)
	{
		key_state = key();
		if(key_state != 88)
		{
		
			if(ara_index != 3)
			{
				ara_key[ara_index] = key_state;
						gotoxy(2,0);

				display_num(key_state);
				if(ara_index == 0)motor_z(key_state*1.42);
				if(ara_index == 1)motor_z(key_state*14.2);
					if(ara_index == 2)motor_z(key_state*142);
				
				ara_index++;
			}
			
			
		}
		if(ara_index == 3)
		{
			
			if(mode == 0)
			{
				mode = 1;
				
				}
			
			ara_index = 0;
			//
		}
	

				gotoxy(1,0);

				display_num(ara_index);
		
		
		
		
	}
}

key.c

code uchar key1[]={0xdf,0xbf,0x7f};
code uchar key2[]={
							0xcf,0xaf,0x6f,
							0xd7,0xb7,0x77,
							0xdb,0xbb,0x7b,
					}	;

uchar key()
{	
    int i,j;
   for(i=0;i<3;i++)
   {
			P3 = key1[i];
			if(P3 != key1[i])
			{
				delay(300);
				if(P3 != key1[i])
				{
						for(j=0;j<9;j++)
					 { 
							if(P3 == key2[j])
							return(j+1);

					 } 
					 
				}
			} 
    }
return (88);	
	}	

lcd1602.c

#include 
#define uchar unsigned char
#define uint unsigned int
sbit RS = P2^5;
sbit RW = P2^6;
sbit E  = P2^7; 
//sbit LED0 = P1^2;
//sbit LED1 = P1^3;

char code num[]="0123456789";
void delay(unsigned int n)
{

   unsigned int j=0;
   for(;n>0;n--)
   { 
	  for(j=0;j<125;j++); 
   }
}

void write_command(uchar command)
{
	RW = 0;
	RS = 0;
	E = 1;
	P0 = command;
	delay(1);
	E = 0;
	RW = 1;
}
void write_data(uchar date)
{
	RW = 0;
	RS = 1;
	E = 1;
	P0 = date;
	delay(1);	                               
	E = 0;
	RW = 1;
}

void display_string(uchar *p)
{
	while(*p)
	{
		write_data(*p);
		p++;
	}
}
void display_num(uint mun)
{
//	 write_data(num[mun / 1000 % 10]);
	 write_data(num[mun / 100 % 10]);
	 write_data(num[mun / 10 % 10]);
	 write_data(num[mun % 10]);
}
void gotoxy(unsigned y,unsigned x)
{
	if(y == 1)  
		write_command(0x80+x);
	else if(y == 2) 
    	write_command(0x80+0x40+x);
}
 void F1602_init(void)
{
	write_command(0x38); 	// 两行，每行16字符，每个字符5*7点阵	
	write_command(0x0C);		// CURSOR_OFF
	write_command(0x06C);	// CURSOR_RIGHT
}
void F1602_clear()
{
	write_command(0x01);	
	write_command(0x02);	
}	

原理图

PCB

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