test44x_testled2.c

ＭＳＰ４３０f４４９实时时钟及ＬＣＤ／ＬＥＤ显示

#include "msp430x44x.h"

#define LED1 0x3E;
#define LED2 0x3D;
#define LED3 0x3B;
#define LED4 0x37;
#define LED5 0x2F;
#define LED6 0x1F;

int Digit[10]={0XD7,0X14,0XCD,0X5D,0X1E,0X5B,0XBB,0X15,0XDF,0X5F};

void Delay(int m)
{
  while(m-->0);
}

void Display(int pos,int x,int point)
{
  
  int BitSel;
  int temp;
  switch (pos)
  {
  case 1:
    BitSel = LED1;
    break;
  case 2:
    BitSel = LED2;
    break;
  case 3:
    BitSel = LED3;
    break;
  case 4:
    BitSel = LED4;
    break;
  case 5:
    BitSel = LED5;
    break;
  case 6:
    BitSel = LED6;
    break;
  default:
    break;
  }
  P3DIR = 0XFF;
  if(point)
     P3OUT = Digit[x]+ 0x20;  //display point
  else
     P3OUT = Digit[x];
  temp = P3OUT;
  P3OUT = 0X00;
  P4OUT = 0X02;     //DATA CHOOSE BIT SET;
  P4OUT = 0X00;    //DATA CHOOSE BIT RESET,CLOSE;
  P3OUT = temp;
  P4OUT = 0X02;
  P4OUT = 0X00;
  P3OUT = BitSel;
  P4OUT = 0x01;
  P4OUT = 0X00;
  Delay(500);     
}

void Send_Data(float Data)
{
  unsigned long xx;
  int temp;
  int i = 6;
  if(Data<1.0)
  {
    xx = Data * 100000;
    
    while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    Display(i,0,1);
    i = 6;
  }
 else if(Data<10.0)
  {
  xx = Data * 100000;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           if(xx<10 && i<6)
           Display(i,temp,1);
           else
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
  }
 else if(Data<100.0)
  {
    {
  xx = Data * 10000;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           if(xx> 9 && xx<100 && i<6)
           Display(i,temp,1);
           else
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
   }
  }
 else if(Data<1000.0)
 {
  {
  xx = Data * 1000;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           if(xx>99 && xx<1000 && i<6)
           Display(i,temp,1);
           else
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
  }
 }
  else if(Data<10000.0)
 {
  {
  xx = Data * 100;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           if(xx>999 && xx<10000 && i<6)
           Display(i,temp,1);
           else
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
  }
 }
 else if(Data<100000.0)
 {
  {
  xx = Data * 10;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           if(xx>9999 && xx<100000 && i<6)
           Display(i,temp,1);
           else
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
  }
 }
 else if(Data<1000000.0)
 {
 {
  xx = Data;
  while(xx !=0)
    {
      temp = xx % 10;
      if(temp != 0)
         {
           Display(i,temp,0);
           i--;
          }
     
      xx = xx / 10;
    }
    i = 6;
  }
 }
}
//***************test of segment of led ***********//
/*
void test(void)
{
  int i; 
  int temp;
  P3OUT = 0x01;
  for(i=0;i<8;i++)
  {
    temp = P3OUT;
    P4OUT = 0X02;
    P4OUT = 0X00;
    P3OUT = 0X3e;
    P4OUT = 0X01;
    P4OUT = 0X00;
    Delay(20000);
    P3OUT = 0x00;
    P4OUT = 0X02;
    P4OUT = 0X00;
    P3OUT = 0X3e;
    P4OUT = 0X01;
    P4OUT = 0X00; 
    Delay(20000);
    P3OUT = temp;    
    P3OUT = P3OUT << 1;   
  }
}
*/

void main(void)
{
  while(1)
  {
  WDTCTL = WDTHOLD+WDTPW;
  P4DIR = 0X03;
  P3DIR = 0XFF;
  P3OUT = 0X00;   //clear all the leds display
  P4OUT = 0X02;  //data select choose
  P4OUT = 0X00;
  Send_Data(1118.88888); 
  } 
}