51单片机-数码管模块-计数器

#include

#define uchar unsigned char

#define uint unsigned int

#define ulong unsigned long

sbit DULA = P2^6;

sbit WELA = P2^7;

unsigned char code WETable[8] = 

{

~0x80,~0x40,~0x20,~0x10,

~0x08,~0x04,~0x02,~0x01

};

unsigned char code DUTable[16] = 

{

0x3F,0x06,0x5B,0x4F,

0x66,0x6D,0x7D,0x07,

0x7F,0x6F,0x77,0x7C,

0x39,0x5E,0x79,0x71

};

unsigned char LedBuff[8] = 

{

0x3F,0x3F,0x3F,0x3F,

0x3F,0x3F,0x3F,0x3F

};

bit flag = 0;

void Timer0Init(void); //1毫秒@11.0592MHz

void main(void)

{

unsigned long sec = 0;

Timer0Init();

while(1)

{

if(1==flag)

{

flag = 0;

sec++;

LedBuff[0] = DUTable[sec/1%10];

LedBuff[1] = DUTable[sec/10%10];

LedBuff[2] = DUTable[sec/100%10];

LedBuff[3] = DUTable[sec/1000%10];

LedBuff[4] = DUTable[sec/10000%10];

LedBuff[5] = DUTable[sec/100000%10];

LedBuff[6] = DUTable[sec/1000000%10];

LedBuff[7] = DUTable[sec/10000000%10];

}

}

}

void Timer0Init(void) //1毫秒@11.0592MHz

{

EA = 1;

ET0 = 1;

//AUXR &= 0x7F; //定时器时钟12T模式

TMOD &= 0xF0; //设置定时器模式

TMOD |= 0x01; //设置定时器模式

TL0 = 0x66; //设置定时初值

TH0 = 0xFC; //设置定时初值

TF0 = 0; //清除TF0标志

TR0 = 1; //定时器0开始计时

}

void LedScan(void)

{

static unsigned char i = 0;

P0 = 0x00;

DULA = 1;

DULA = 0;

P0 = WETable[i];

WELA = 1;

WELA = 0;

P0 = LedBuff[i];

DULA = 1;

DULA = 0;

if(i<7)

{

i++;

}

else

{

i = 0;

}

}

void InterruptTimer0(void) interrupt 1

{

static unsigned int cnt = 0;

TL0 = 0x66; //设置定时初值

TH0 = 0xFC; //设置定时初值

LedScan();

cnt++;

if(cnt>=1000)

{

cnt = 0;

flag = 1; 

}

}