MSP430F249数码管显示

火辣西米秀

MSP430F249数码管显示 [复制链接]

/******************************************************************
**                                                       
**  File : Display.c     | Display led segment |                                    
**  Version : 1.0     
** Description : led 7 segment display                                                                         
                                             
*******************************************************************/

#include "MSP430x24x.h"

#define uint unsigned int
#define uchar unsigned char

/***设置数码管显示****/

#define L1_OFF   P4OUT|=BIT0 //关L1
#define L1_NO    P4OUT&=~BIT0 //点亮L1
#define L2_OFF   P4OUT|=BIT1 //关L2
#define L2_NO    P4OUT&=~BIT1 //点亮L2
#define L3_OFF   P4OUT|=BIT2 //关L3
#define L3_NO    P4OUT&=~BIT2 //点亮L3
#define L4_OFF   P4OUT|=BIT3 //关L4
#define L4_NO    P4OUT&=~BIT3 //点亮4
#define L5_OFF   P4OUT|=BIT4 //关L5
#define L5_NO    P4OUT&=~BIT4 //点亮L5
#define L6_OFF   P4OUT|=BIT5 //关L6
#define L6_NO    P4OUT&=~BIT5 //点亮L6
#define L7_OFF   P4OUT|=BIT6 //关L7
#define L7_NO    P4OUT&=~BIT6 //点亮L7
#define L8_OFF   P4OUT|=BIT7 //关L8
#define L8_NO    P4OUT&=~BIT7 //点亮L8

uchar const Segment1[]={0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f}; //不带小数点编码
uchar const Segment2[]={0x40, 0x79, 0x24, 0x30, 0x19, 0x12, 0x02, 0x78, 0x00, 0x10}; //带小数点编码

void Display( uchar num1, uchar num2, uchar num3, uchar num4, uchar num5, uchar num6, uchar num7, uchar num8);

void Delay(void)
{
  uint m;
  for(m=1000;m>0;m--);
}

void main(void)
{
        // Stop watchdog timer to prevent time out reset
        WDTCTL = WDTPW + WDTHOLD;       //关狗
  
        P4DIR = 0XFF;         //P4设置为输出,位码控制
        P4SEL = 0;
        
        P5DIR = 0XFF;        //P5设置为输出，断码控制
        P5SEL = 0;
        
        while(1)
        {
        //    volatile unsigned int i;

        //    i = 50000;                              // Delay
        //    do (i--);
        //    while (i != 0);
            
            Display(1,2,3,4,5,6,7,8);
        }
        

}

void Display( uchar num1, uchar num2, uchar num3, uchar num4, uchar num5, uchar num6, uchar num7, uchar num8)
{
    P5OUT = Segment1[ num1 ];//
    L1_NO;
    Delay();
    L1_OFF;
    
    P5OUT = Segment1[ num2 ];//
    L2_NO;
    Delay();
    L2_OFF;
    
    P5OUT = Segment1[ num3 ];//
    L3_NO;
    Delay();
    L3_OFF;
    
    P5OUT = Segment1[ num4 ];//
    L4_NO;
    Delay();
    L4_OFF;
    
    P5OUT = Segment1[ num5 ];//
    L5_NO;
    Delay();
    L5_OFF;
    
    P5OUT = Segment1[ num6 ];//
    L6_NO;
    Delay();
    L6_OFF;
    
    P5OUT = Segment1[ num7 ];//
    L7_NO;
    Delay();
    L7_OFF;
    
    P5OUT = Segment1[ num8 ];//
    L8_NO;
    Delay();
    L8_OFF;

}