2018年01月30日 | MSP430单片机步进电机程序

2018-01-30 来源：eefocus

MSP430 单片机步进电机程序

#include "msp430x22x4.h"
#define uchar unsigned char
#define uint unsigned int

uchar i=0;

// 扫描式4x4键盘

#define keyin   (P2IN&0x0F)

//数码管值0~f
unsigned char key[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};

unsigned char hang[]={0xef,0xdf,0xbf,0x7f};// 选中行码
unsigned char lie[]={0x0e,0x0d,0x0b,0x07};//相应列值
unsigned char save,a,b;

void DELAY(uint aj)
{

    while(aj--);
}

void init_port(void)
{

  P1SEL |=BIT2+BIT3;                      //TA1,TA2输出功能
  P1DIR |=BIT2+BIT3;

  P2DIR=0XF0;
  P2SEL=0;
  P2OUT=0;
  P2IE=0X0F;
  P2IES=0XF0;
  P2IFG=0;

  P3DIR=0XFF;   //p3.0--A P3.1---B  P3.2---C   P3.3---D
  P3SEL=0X00;
  P3OUT=0XF0;

  _EINT();

  return;
}

void main(void)
{
  WDTCTL=WDTPW+WDTHOLD;                   //关看门狗
  BCSCTL1 =CALBC1_1MHz;                   //设定DCO为1MHZ
  DCOCTL =CALBC1_1MHZ;

  init_port();

  while(1)
  {
  while(i==1)   // 单四拍
  {
    P3OUT=0XF1;//11110100
   DELAY(390);

   P3OUT=0XF2;//11110010
   DELAY(390);

   P3OUT=0XF4;//11110001
   DELAY(390);

    P3OUT=0XF8;//11111000
   DELAY(390);
  }

   while(i==2)//单四拍反转
    {
        P3OUT=0X08;//D
      DELAY(390);
     P3OUT=0X04;//C
      DELAY(390);
       P3OUT=0X02;//B
      DELAY(390);
       P3OUT=0X01;//A
      DELAY(390);
    }

    while(i==3)   //双四拍
    {
      P3OUT=0X03;//AB
      DELAY(390);
      P3OUT=0X06;//BC
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
      P3OUT=0X09;//DA
      DELAY(390);
    }

     while(i==4)   //双四拍反转
    {
      P3OUT=0X09;//DA
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
      P3OUT=0X06;//BC
      DELAY(390);
      P3OUT=0X03;//AB
      DELAY(390);
    }

    while(i==5)//单八拍
    {
       P3OUT=0X01;//A
      DELAY(390);
      P3OUT=0X03;//AB
      DELAY(390);
      P3OUT=0X02;//B
      DELAY(390);
       P3OUT=0X06;//BC
      DELAY(390);
      P3OUT=0X04;//C
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
      P3OUT=0X08;//D
      DELAY(390);
       P3OUT=0X09;//DA
      DELAY(390);
    }

    while(i==6)//单八拍反转
    {
      P3OUT=0X09;//DA
      DELAY(390);
      P3OUT=0X08;//D
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
       P3OUT=0X04;//C
      DELAY(390);
       P3OUT=0X06;//BC
       DELAY(390);
      P3OUT=0X02;//B
      DELAY(390);
      P3OUT=0X03;//AB
      DELAY(390);
       P3OUT=0X01;//A
      DELAY(390);
    }

    while(i==7)//双八拍
    {
     P3OUT=0X03;//AB
      DELAY(390);
      P3OUT=0X07;//ABC
      DELAY(390);
      P3OUT=0X06;//BC
      DELAY(390);
       P3OUT=0X0E;//BCD
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
       P3OUT=0X0D;//CDA
      DELAY(390);
      P3OUT=0X09;//DA
      DELAY(390);
      P3OUT=0X0B;//DAB
      DELAY(390);
    }

    while(i==8)//双八拍反转
    {

      P3OUT=0X0B;//DAB
      DELAY(390);
        P3OUT=0X09;//DA
      DELAY(390);
       P3OUT=0X0D;//CDA
      DELAY(390);
      P3OUT=0X0c;//CD
      DELAY(390);
       P3OUT=0X0E;//BCD
      DELAY(390);
      P3OUT=0X06;//BC
      DELAY(390);
      P3OUT=0X07;//ABC
      DELAY(390);
      P3OUT=0X03;//AB
      DELAY(390);
    }
  }
}


void keyprocess(void)
{
       for(a=0;a<4;a++)
       {
           P2OUT=hang[a];       //逐行扫描
            if(keyin != 0x0f)break;//检测该行有键按下则退出循环
       }

       for(b=0;b<4;b++)     //逐列扫描
       {
         if(keyin==lie[b])
         {
           save=key[a][b];break;        //检测该列有键按下则退出循环
         }
       }


       switch(save)
       {
       case 1:i=1;break;
       case 2:i=2;break;
       case 3:i=3;break;
       case 4:i=4;break;
       case 5:i=5;break;
       case 6:i=6;break;
       case 7:i=7;break;
       case 8:i=8;break;
       case 9:
       case 10:
       case 11:
       case 12:
       case 13:
       case 14:
       case 15:
       case 16:break;
       }
    return;
}

#pragma vector = PORT2_VECTOR
__interrupt void PORT_ISR(void)

{
  keyprocess();
  P2IFG=0;
  P2OUT = 0;
   return;
}

MSP430 单片机步进电机

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