11111111.c

这是一片430和4个数码管组成的最简单的一个显示程序

//*******************************************************************************
//  MSP-FET430P440 Demo - Software Toggle P5.1
//
//  Description: Toggle P5.1 by xor'ing P5.1 inside of a software loop.
//  ACLK = n/a, MCLK = SMCLK = default DCO
//
//                MSP430F449
//             -----------------
//         /|\|              XIN|-
//          | |                 |
//          --|RST          XOUT|-
//            |                 |
//            |             P5.1|-->LED
//
//  M. Buccini
//  Texas Instruments Inc.
//  Feb 2005
//  Built with IAR Embedded Workbench Version: 3.21A
//*****************************************************************************
#include  <msp430x12x.h>
unsigned  char dis_buff[6]={0,1,2,3,4,5};
const  unsigned   char distab[]=
{0xdb,0x0a,0x79,0x6b,0xaa,0xe3,0xf3,0x0b,0xfb,0xeb};

void main(void)
{
  unsigned  char  i,j;
  unsigned   char  temp;
  P3OUT &=~(BIT0+BIT1+BIT2);
    P3DIR|=BIT0+BIT1+BIT2;
   P3OUT&=~BIT2;// Set P5.1 to output direction
     P3OUT|=BIT2;
   for(i=0;i<6;i++)
   { temp=distab[dis_buff[i]];
       for(j=0;j<8;j++)
       {if(temp&0x80)
      P3OUT|=BIT1;        else  P3OUT&=~BIT1;
        temp=temp<<1;
        P3OUT&=~BIT0;
          P3OUT|=BIT0;}
  
                 P3OUT |=BIT2;                          // Toggle P5.1 using exclusive-OR

                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
   }
   
}