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可达鸭爱进步

最新推荐文章于 2025-01-24 10:02:27 发布

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分类专栏：单片机

本文链接：https://blog.youkuaiyun.com/Wjy2016/article/details/52713391

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#include 
   
   
    
    
#include 
    
    
     
     

#define SEGPORT P0

sbit bit_select = P2^0;
sbit seg_select = P2^1;

unsigned char bitdata[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char segdata[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char tempdata[8];
unsigned char sec = 0;
unsigned char min = 0;
unsigned char hour = 0;


void timer0_init(void)
{
    EA = 1;
    TMOD |= 0x01;
    TH0 = (65536 - 50000) / 256;
    TL0 = (65536 - 50000) % 256;
    ET0 = 1;
    TR0 = 1;
}

void timer1_init(void)
{
    EA = 1;
    TMOD |= 0x10;
    TH1 = (65536 - 1000) / 256;
    TL1 = (65536 - 1000) % 256;
    ET1 = 1;
    TR1 = 1;
}

void timer0_isr() interrupt 1
{
    static unsigned char j = 0;

    TH0 = (65536 - 50000) / 256;
    TL0 = (65536 - 50000) % 256;

    j++;

    if(20 == j)
    {
        j = 0;
        sec++;
        if(60 == sec)
        {
            sec = 0;
            min++;
            if(60 == min)
            {
                min = 0;
                hour++;
                if(24 == hour)
                {
                    hour = 0;
                }
            }
        }
    }
    tempdata[6] = segdata[sec / 10];
    tempdata[7] = segdata[sec % 10];
    tempdata[5] = 0x40;
    tempdata[3] = segdata[min / 10];
    tempdata[4] = segdata[min % 10];
    tempdata[2] = 0x40;
    tempdata[0] = segdata[hour / 10];
    tempdata[1] = segdata[hour % 10];
}

void display()
{
    static unsigned char i = 0;

            SEGPORT = 0x0;
            seg_select = 1;
            seg_select = 0;
            SEGPORT = 0xff;
            bit_select = 1;
            bit_select = 0;

            SEGPORT = tempdata[i];
            seg_select = 1;
            seg_select = 0;

            SEGPORT = bitdata[i];
            bit_select = 1;
            bit_select = 0;
        i++;
      if(8 == i)
      {
            i = 0;
      }
}

void timer1_isr() interrupt 3
{
    TH1 = (65536 - 1000) / 256;
    TL1 = (65536 - 1000) % 256;

    display();
}



void main()
{
     timer0_init();
     timer1_init();
     while(1);
}