단편기==독립버튼+디지털관계수+중단법(9)

#include 
#include "delay.h"

sbit key1 = P3^2;
sbit seg_select = P1^0;
sbit bit_select = P1^1;

#define SEGPORT P0

unsigned char tempdata[2] = {0x3f,0x3f};
unsigned char segdata[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char bitdata[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

void timer0_init(void)
{
    EA = 1;
    TMOD |= 0x01;
    TH0 = (65536 - 10000) / 256;
    TL0 = (65536 - 10000) % 256;
    ET0 = 1;
    TR0 = 1;
}


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(2 == i)
    {
        i = 0;
    }
}

void timer0_isr(void) interrupt 1
{
    TH0 = (65536 - 10000) / 256;
    TL0 = (65536 - 10000) % 256;
    display();
}


void int0_init()
{
    EA = 1;
    IT0 = 1;
    EX0 = 1;
}

void int0_isr(void) interrupt 0
{
    static unsigned char disdata = 0;
    EX0 = 0;

    delay_ms(10);
    if(0 == key1)
        {
            while(!key1)
            delay_ms(10);
            while(!key1);
            disdata++;
            if(100 == disdata)
            {
                disdata = 0;
            }
        }

        tempdata[0] = segdata[disdata / 10];
        tempdata[1] = segdata[disdata % 10];

        EX0 = 1;
}

void main()
{
    timer0_init();
  int0_init();
    while(1);
}