2014单片机大作业代码

#include<reg52.h>

#define uchar unsigned char
#define uint unsigned int

sbit dula=P2^6;
sbit wela=P2^7;
sbit key1=P3^4;
sbit key2=P3^5;
sbit key3=P3^6;
sbit key4=P3^7;

uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

uchar code table_dp[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef,0xf7,0xfc,0xb9,0xde,0xf9,0xf1};

void display(uchar,uchar,uchar,uchar,uchar,uchar);
void delayms(uint);
void keyscan();
void timescan();
void bellscan();
void setbell();
void savebell();
void ring();

uchar num,sec_num,min_num,hou_num,sec_shi,sec_ge,min_shi,min_ge,hou_shi,hou_ge,hou_bell,min_bell,sec_bell,set_save,ring_time,ring_yes;

int main()
{
    TMOD=0x11;//定时器0和1为工作方式1
    TH0=(65535-45872)/256;
    TL0=(65535-45872)%256;
    TH1=(65535-45872)/256;
    TL1=(65535-45872)%256;

    EA=1;
    ET0=1;
    ET1=1;
    TR0=0;
    TR1=1;

    while(1)
    {
    keyscan();
    if(set_save==1)
        setbell();
    else
        savebell();
        display(sec_shi,sec_ge,min_shi,min_ge,hou_shi,hou_ge);

    if(sec_num==sec_bell && min_num==min_bell && hou_num==hou_bell)
        ring_yes=1;
    if(ring_yes==1)
     {
        for(ring_time=0;ring_time<5;ring_time++)
        {
            key4=0;
            delayms(1000);
            key4=1;
            delayms(1000);
            ring_yes=0;
        }
     }
    }

    return 0;
}

void display(uchar sec_shi,uchar sec_ge,uchar min_shi,uchar min_ge,uchar hou_shi,uchar hou_ge)
{
    //second
    dula=1;
    P0=table[sec_shi];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xef;
    wela=0;
    delayms(1);

    dula=1;
    P0=table[sec_ge];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xdf;
    wela=0;
    delayms(1);

    //minute
    dula=1;
    P0=table[min_shi];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xfb;
    wela=0;
    delayms(1);

    dula=1;
    P0=table_dp[min_ge];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xf7;
    wela=0;
    delayms(1);

    //hour
    dula=1;
    P0=table[hou_shi];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xfe;
    wela=0;
    delayms(1);

    dula=1;
    P0=table_dp[hou_ge];
    dula=0;
    P0=0xff;

    wela=1;
    P0=0xfd;
    wela=0;
    delayms(1);
}

void delayms(uint xms)
{
    uint i,j;
    for(i=xms;i>0;i--)
        for(j=112;j>0;j--);
}

void T0_time() interrupt 1
{
    TH0=(65535-45872)/256;
    TL0=(65535-45872)%256;
    if(sec_bell==60)
    sec_bell=0;
    if(min_bell==60)
        min_bell=0;
    if(hou_bell==24)
        hou_bell=0;

    sec_shi=sec_bell/10;
    sec_ge=sec_bell%10;

    min_shi=min_bell/10;
    min_ge=min_bell%10;

    hou_shi=hou_bell/10;
    hou_ge=hou_bell%10;

    num++;
    if(num>=20)
    {
        num=0;
        sec_num++;
        if(sec_num==60)
        {
            sec_num=0;
            min_num++;
            if(min_num==60)
            {
                min_num=0;
                hou_num++;
                if(hou_num==24)
                {
                    hou_num=0;
                }
            }
        }
    }
}

void T1_time() interrupt 3
{
    TH1=(65535-45872)/256;
    TL1=(65535-45872)%256;
    num++;
    if(num>=20)
    {
        num=0;
        sec_num++;
        if(sec_num==60)
        {
            sec_num=0;
            min_num++;
            if(min_num==60)
            {
                min_num=0;
                hou_num++;
                if(hou_num==24)
                {
                    hou_num=0;
                }
            }
        }

        sec_shi=sec_num/10;
        sec_ge=sec_num%10;

        min_shi=min_num/10;
        min_ge=min_num%10;

        hou_shi=hou_num/10;
        hou_ge=hou_num%10;
    }
}

void keyscan()
{
    if(key4==0)
    {
    delayms(10);
    if(key4==0)
    {
        if(set_save==0)
            set_save=1;
        else if(set_save==1)
            set_save=0;
     while(!key4);
    }
    }
}

void setbell()
{
    P1=0x00;
    TR0=1;
    TR1=0;
    bellscan();
}

void savebell()
{
    P1=0xff;
    TR0=0;
    TR1=1;
    timescan();
}

void timescan()
{
    if(key1==0)
    {
    delayms(10);
    if(key1==0)
    {
        sec_num++;
     if(sec_num==60)
        sec_num=0;
     while(!key1);
    }
    }

    if(key2==0)
    {
    delayms(10);
    if(key2==0)
    {
        min_num++;
     if(min_num==60)
        min_num=0;
     while(!key2);
    }
    }

    if(key3==0)
    {
    delayms(10);
    if(key3==0)
    {
        hou_num++;
     if(hou_num==24)
        hou_num=0;
     while(!key3);
    }
    }
}

void bellscan()
{
    if(key1==0)
    {
    delayms(10);
    if(key1==0)
    {
        sec_bell++;
     if(sec_bell==60)
        sec_bell=0;
     while(!key1);
    }
    }

    if(key2==0)
    {
    delayms(10);
    if(key2==0)
    {
        min_bell++;
     if(min_bell==60)
        min_bell=0;
     while(!key2);
    }
    }

    if(key3==0)
    {
    delayms(10);
    if(key3==0)
    {
        hou_bell++;
     if(hou_bell==24)
        hou_bell=0;
     while(!key3);
    }
    }
}