单片机码表的驱动程序

#include <reg52.h>
#include "./delay/delay.h"
#define SEGPORT P0
sbit start = P1^0;
sbit end = P1^1;
sbit seg_select = P2^1;
sbit bit_select = P2^0;
unsigned char flag = 1;
unsigned char duanma[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char weima[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char TempData[8];
unsigned char shi = 0, fen = 0, miao = 0;
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 = weima[i];
bit_select = 1;
bit_select = 0;
i++;
if(8 == i)
{
i = 0;
}
}
void time0_init(void)
{
EA = 1;
TMOD |= 0x01;
TH0 = (65536 - 2000) / 256;
TL0 = (65536 - 2000) % 256;
ET0 = 1;
TR0 = 1;
}
void time0_isr() interrupt 1
{
static unsigned char i = 0;
TH0 = (65536 - 200) / 256;
TL0 = (65536 - 200) % 256;
i++;
if(flag)
{
if(50 == i)
{
i = 0;
miao++;
if(60 == miao)
{
miao = 0;
fen++;
if(60 == fen)
{
fen = 0;
shi++;
if(24 == shi)
{
shi = 0;
}
}
}
}
}
TempData[0] = duanma[shi / 10];
TempData[1] = duanma[shi % 10];
TempData[2] = 0x40;
TempData[3] = duanma[fen / 10];
TempData[4] = duanma[fen % 10];
TempData[5] = 0x40;
TempData[6] = duanma[miao / 10];
TempData[7] = duanma[miao % 10];
}
void time1_init(void)
{
EA = 1;
TMOD |= 0x10;
TH1 = (65536 - 2000) / 256;
TL1 = (65536 - 2000) % 256;
ET1 = 1;
TR1 = 1;
}
void time1_isr() interrupt 3
{
TH1 = (65536 - 2000) / 256;
TL1 = (65536 - 2000) % 256;
display();
}
void main()
{
time1_init();
time0_init();
while(1)
{
if(0 == start)
{
while(!start);
//È¥¶¶¶¯
delay_ms(10);
while(!start);
if(0 == flag)
{
flag = 1;
}
else
{
flag = 0;
}
}
if(0 == end)
{
while(!end);
//È¥¶¶¶¯
delay_ms(10);
while(!end);
shi = 0;
fen = 0;
miao = 0;
}
}
}
/*****delay.c***********/
void delay_us(unsigned char t)
{
while(--t);
}
void delay_ms(unsigned char t)
{
while(t--)
{
delay_us(245);
delay_us(245);
}
}
void delay_s(unsigned char t)
{
while(t--)
{
delay_ms(200);
delay_ms(200);
delay_ms(200);
delay_ms(200);
delay_ms(200);
}
}
/****delay.h*******/
#ifndef _DELAY_H_
#define _DELAY_H_
extern void delay_us(unsigned char t);
extern void delay_ms(unsigned char t);
extern void delay_s(unsigned char t);
#endif

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