步进电机定圈转动,正反转,速率内部可调
单片机源程序如下:
- /*-----------------------------------------------
- 名称:步进电机
- 内容:本程序用于测试4相步进电机常规驱动
- 使用1-2相励磁
- 1-2相激励功率增倍,步进角度减半,抖动减少
- 顺序如下 a-b-c-d
- ------------------------------------------------*/
- #include <reg52.h>
- #include<intrins.h>
- #include<stdio.h>
- #include<string.h>
- sbit RS = P2^4; //定义端口
- sbit RW = P2^5;
- sbit EN = P2^6;
- sbit A1=P1^0; //定义步进电机连接端口
- sbit B1=P1^1;
- sbit C1=P1^2;
- sbit D1=P1^3;
- #define RS_CLR RS=0
- #define RS_SET RS=1
- #define RW_CLR RW=0
- #define RW_SET RW=1
- #define EN_CLR EN=0
- #define EN_SET EN=1
- #define DataPort P0
- #define KeyPort P3
- #define Coil_AB1 {A1=1;B1=1;C1=0;D1=0;}//AB相通电,其他相断电
- #define Coil_BC1 {A1=0;B1=1;C1=1;D1=0;}//BC相通电,其他相断电
- #define Coil_CD1 {A1=0;B1=0;C1=1;D1=1;}//CD相通电,其他相断电
- #define Coil_DA1 {A1=1;B1=0;C1=0;D1=1;}//D相通电,其他相断电
- #define Coil_A1 {A1=1;B1=0;C1=0;D1=0;}//A相通电,其他相断电
- #define Coil_B1 {A1=0;B1=1;C1=0;D1=0;}//B相通电,其他相断电
- #define Coil_C1 {A1=0;B1=0;C1=1;D1=0;}//C相通电,其他相断电
- #define Coil_D1 {A1=0;B1=0;C1=0;D1=1;}//D相通电,其他相断电
- #define Coil_OFF {A1=0;B1=0;C1=0;D1=0;}//全部断电
- unsigned char count;
- unsigned char Speed;//正转速度
- unsigned char Speed1;//反转速度
- bit Flag;
- unsigned char code dofly_code[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};//转换成液晶显示的字符
- /*------------------------------------------------
- uS延时函数,含有输入参数 unsigned char t,无返回值
- unsigned char 是定义无符号字符变量,其值的范围是
- 0~255 这里使用晶振12M,精确延时请使用汇编,大致延时
- 长度如下 T=tx2+5 uS
- ------------------------------------------------*/
- void DelayUs2x(unsigned char t)
- {
- while(--t);
- }
- /*------------------------------------------------
- mS延时函数,含有输入参数 unsigned char t,无返回值
- unsigned char 是定义无符号字符变量,其值的范围是
- 0~255 这里使用晶振12M,精确延时请使用汇编
- ------------------------------------------------*/
- void DelayMs(unsigned char t)
- {
-
- while(t--)
- {
- //大致延时1mS
- DelayUs2x(245);
- DelayUs2x(245);
- }
- }
- /*------------------------------------------------
- 判忙函数
- ------------------------------------------------*/
- bit LCD_Check_Busy(void)
- {
- DataPort= 0xFF;
- RS_CLR;
- RW_SET;
- EN_CLR;
- _nop_();
- EN_SET;
- return (bit)(DataPort & 0x80);
- }
- /*------------------------------------------------
- 写入命令函数
- ------------------------------------------------*/
- void LCD_Write_Com(unsigned char com)
- {
- // while(LCD_Check_Busy()); //忙则等待
- DelayMs(5);
- RS_CLR;
- RW_CLR;
- EN_SET;
- DataPort=com;
- _nop_();
- EN_CLR;
- }
- /*------------------------------------------------
- 写入数据函数
- ------------------------------------------------*/
- void LCD_Write_Data(unsigned char Data)
- {
- //while(LCD_Check_Busy()); //忙则等待
- DelayMs(5);
- RS_SET;
- RW_CLR;
- EN_SET;
- DataPort= Data;
- _nop_();
- EN_CLR;
- }
- /*------------------------------------------------
- 清屏函数
- ------------------------------------------------*/
- void LCD_Clear(void)
- {
- LCD_Write_Com(0x01);
- DelayMs(5);
- }
- /*------------------------------------------------
- 写入字符串函数
- ------------------------------------------------*/
- void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
- {
- if (y == 0)
- {
- LCD_Write_Com(0x80 + x);
- }
- else
- {
- LCD_Write_Com(0xC0 + x);
- }
- while (*s)
- {
- LCD_Write_Data( *s);
- s ++;
- }
- }
- /*------------------------------------------------
- 写入字符函数
- ------------------------------------------------*/
- void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
- {
- if (y == 0)
- {
- LCD_Write_Com(0x80 + x);
- }
- else
- {
- LCD_Write_Com(0xC0 + x);
- }
- LCD_Write_Data( Data);
- }
- /*------------------------------------------------
- 初始化函数
- ------------------------------------------------*/
- void LCD_Init(void)
- {
- LCD_Write_Com(0x38); /*显示模式设置*/
- DelayMs(5);
- LCD_Write_Com(0x38);
- DelayMs(5);
- LCD_Write_Com(0x38);
- DelayMs(5);
- LCD_Write_Com(0x38);
- LCD_Write_Com(0x08); /*显示关闭*/
- LCD_Write_Com(0x01); /*显示清屏*/
- LCD_Write_Com(0x06); /*显示光标移动设置*/
- DelayMs(5);
- LCD_Write_Com(0x0C); /*显示开及光标设置*/
- }
-
- /*------------------------------------------------
- 按键扫描函数,返回扫描键值
- ------------------------------------------------*/
- unsigned char KeyScan(void) //键盘扫描函数,使用行列反转扫描法
- {
- unsigned char cord_h,cord_l;//行列值中间变量
- KeyPort=0x0f; //行线输出全为0
- cord_h=KeyPort&0x0f; //读入列线值
- if(cord_h!=0x0f) //先检测有无按键按下
- {
- DelayMs(10); //去抖
- if((KeyPort&0x0f)!=0x0f)
- {
- cord_h=KeyPort&0x0f; //读入列线值
- KeyPort=cord_h|0xf0; //输出当前列线值
- cord_l=KeyPort&0xf0; //读入行线值
- while((KeyPort&0xf0)!=0xf0);//等待松开并输出
- return(cord_h+cord_l);//键盘最后组合码值
- }
- }return(0xff); //返回该值
- }
- ///*------------------------------------------------
- // 按键值处理函数,返回扫键值
- // 可以根据需要改变返回值
- // | 1 | 2 | 3 | A |
- // | 4 | 5 | 6 | B |
- // | 7 | 8 | 9 | C |
- // | * | 0 | # | D |
- //------------------------------------------------*/
- unsigned char KeyPro(void)
- {
- switch(KeyScan())
- {
- case 0x7e:return 10;break;//0 按下相应的键显示相对应的码值
- case 0x7d:return 11;break;//1
- case 0x7b:return 12;break;//2
- case 0x77:return 13;break;//3
- case 0xbe:return 3;break;//4
- case 0xbd:return 6;break;//5
- case 0xbb:return 9;break;//6
- case 0xb7:return 14;break;//7
- case 0xde:return 2;break;//8
- case 0xdd:return 5;break;//9
- case 0xdb:return 8;break;//a
- case 0xd7:return 0;break;//b
- case 0xee:return 1;break;//c
- case 0xed:return 4;break;//d
- case 0xeb:return 7;break;//e
- case 0xe7:return 15;break;//f
- default:return 0xff;break;
- }
- }
- /*------------------------------------------------
- 主函数
- ------------------------------------------------*/
- main()
- {
- unsigned int m=50;//旋转一周时间
- unsigned int k,p,i;
- unsigned char num;
- unsigned char temp[8];
- Speed=2;//正转速度
- Speed1=2;//反转速度
-
-
- LCD_Init();
- LCD_Write_Com(0x0F);//光标开,光标闪烁开
- LCD_Write_String(0,0,"Press the key ");
- LCD_Write_String(0,1,"*=zheng or #=fan ");
-
- Coil_OFF
- i=0;
- while(1)
- {
-
- Coil_OFF
- num=KeyPro();
-
- while(num!=10)
- {
- Speed++;
- LCD_Clear();
- LCD_print("U= mV");
- sprintf(Speed,"%3f",num);
-
- }
-
- if(num==15)
- {
- DelayMs(10);
- if(num==15)
- {
- // LCD_Write_String(0,1,"Speed= ");
- // sprintf(1,"%1d",1);
- LCD_Clear();
- LCD_Write_String(0,0,"Zheng Zhuan:");
- while(num!=14)
- {
- num=KeyPro();
- if(num!=0xff)//如果扫描是按键有效值则进行处理
- {
- if((num==10)||(num==11)||(num==12)||(num==13)||(num==14)||(num==15))
- {
- LCD_Write_String(0,1,"ERR,enter * or #");
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- LCD_Write_String(0,1," ");
- i=0;
- break;
- }
-
- if(i==0)
- LCD_Write_String(0,1," ");//清除该行
- if(i<2) //密码是8位,大于8位时不再输入按键值
- {//num=KeyPro();
- if(num==10)
- Speed++;
- temp[i]=num;
- LCD_Write_Char(i,1,num+'0');
- }
- i++;
- if(i==2)//8位后的按键不输入数值,相当于确认按键(任意按键即可)
- {
- LCD_Write_String(0,1,"waiting");
- i=0; //计数器复位
- p=(temp[0]*512/*+temp[1]*100+temp[2]*10+temp[3]*/);/*****************************************************/
- for(k=0;k<p;k++)
- {
-
- Coil_A1
- DelayMs(Speed); //遇到Coil_AB1 用{A1=1;B1=1;C1=0;D1=0;}代替
- //改变这个参数可以调整电机转速 ,
- //数字越小,转速越大,力矩越小
- Coil_B1
- DelayMs(Speed);
- Coil_C1
- DelayMs(Speed);
- Coil_D1
- DelayMs(Speed);
- }
- p=0;
- LCD_Write_String(0,1," ");
- }
- }
- }
- i=0;
- }
- }
- if(num==14)
- {
- DelayMs(10);
- if(num==14)
- {
- LCD_Clear();
- LCD_Write_String(0,0,"Fan Zhuan:");
- while(num!=15)
- {
- num=KeyPro();
- if(num!=0xff) //如果扫描是按键有效值则进行处理
- {
- if((num==10)||(num==11)||(num==12)||(num==13)||(num==15)||(num==14))
- {
- LCD_Write_String(0,1,"ERR,enter * or #");
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- DelayMs(4000);
- LCD_Write_String(0,1," ");
- i=0;
- break;
- }
- if(i==0) //输入是第一个字符的时候需要把改行清空,方便观看密码
- LCD_Write_String(0,1," ");//清除该行
- if(i<2) //密码是8位,大于8位时不再输入按键值
- {
- temp[i]=num;
- LCD_Write_Char(i,1,num+'0');
- }
- i++;
- if(i==2)//8位后的按键不输入数值,相当于确认按键(任意按键即可)
- {
- LCD_Write_String(0,1,"waiting");
- i=0; //计数器复位
- p=(temp[0]*512/*+temp[1]*10+temp[2]*/);/*****************************************************************/
- for(k=0;k<p;k++)
- {
- Coil_A1
- DelayMs(Speed1); //遇到Coil_AB1 用{A1=1;B1=1;C1=0;D1=0;}代替
- //改变这个参数可以调整电机转速 ,
- //数字越小,转速越大,力矩越小
- Coil_D1
- DelayMs(Speed1);
- Coil_C1
- DelayMs(Speed1);
- Coil_B1
- DelayMs(Speed1);
- }
- p=0;
- LCD_Write_String(0,1," ");
- }
- }
- }
- i=0;
- }
- }
- }
- }
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步进电机LED显示按键控制转动圈数,速度程序内部可调.zip
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