中断与数码管动态显示代码

更成痒 发表于 2025-6-9 13:30:49

数码管从0-999999且高位0显示

#include <reg52.h>

sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;

unsigned char code LedChar[] = //数码管显示字符转换表
{
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};

unsigned char LedBuff[] = //数码管显示缓冲区，初值为0xFF确保启动时都不亮
{
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};

unsigned char i = 0;//动态扫描的索引
unsigned int cnt = 0;//记录T0中断次数
unsigned char isFlag = 0;//1s标志位

void main(void)
{
unsigned long sec = 0;//记录经过的秒数

ENLED = 0;//使能U3,选择控制数码管
ADDR3 = 1;//因为需要动态改变ADDR0-2的值，所以不需要再初始化了
TMOD = 0x01;//设置T0为模式1
TH0 = 0xFC;//设置T0赋初值为0xFC67,定时1ms
TL0 = 0x67;
TR0 = 1;//启动T0

EA = 1;//使能总中断
ET0 = 1;//使能T0中断

while (1)
{
if (1 == isFlag)//判断1秒定时标志
{
isFlag = 0;//1秒定时标志清零
if (999999 == sec)
sec = 0;
else
sec++;//秒计数加1

//以下代码将sec按十进制位从低到高依次提取并转为数码管显示字符
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
}
}
}

/* 定时器中断服务函数 */
void interrupt0 (void) interrupt 1//T0中断
{
TH0 = 0xFC;//重新赋初值
TL0 = 0x67;
cnt++;//计数值加1

if (cnt > 1000)
{
cnt = 0;//清零计数值以重新开始下一秒计时
isFlag = 1;    //设置1秒定时标志位1
}

P0 = 0xFF;//显示消隐

//以下代码完成数码管动态扫描刷新
switch (i)
{
case 0: ADDR2 = 0;ADDR1 = 0;ADDR0 = 0;i++;P0 = LedBuff;break;
case 1: ADDR2 = 0;ADDR1 = 0;ADDR0 = 1;i++;P0 = LedBuff;break;
case 2: ADDR2 = 0;ADDR1 = 1;ADDR0 = 0;i++;P0 = LedBuff;break;
case 3: ADDR2 = 0;ADDR1 = 1;ADDR0 = 1;i++;P0 = LedBuff;break;
case 4: ADDR2 = 1;ADDR1 = 0;ADDR0 = 0;i++;P0 = LedBuff;break;
case 5: ADDR2 = 1;ADDR1 = 0;ADDR0 = 1;i = 0;P0 = LedBuff;break;
default:break;
}
}数码管从0-999999且高位0不显示

#include <reg52.h>

sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;

unsigned char code LedChar[] = //数码管显示字符转换表
{
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};

unsigned char LedBuff[] = //数码管显示缓冲区，初值为0xFF确保启动时都不亮
{
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};

unsigned char i = 0;//动态扫描的索引
unsigned int cnt = 0;//记录T0中断次数
unsigned char isFlag = 0;//1s标志位
unsigned long sec = 0;//记录经过的秒数

void main(void)
{
ENLED = 0;//使能U3,选择控制数码管
ADDR3 = 1;//因为需要动态改变ADDR0-2的值，所以不需要再初始化了
TMOD = 0x01;//设置T0为模式1
TH0 = 0xFC;//设置T0赋初值为0xFC67,定时1ms
TL0 = 0x67;
TR0 = 1;//启动T0

EA = 1;//使能总中断
ET0 = 1;//使能T0中断

while (1)
{
if (1 == isFlag)//判断1秒定时标志
{
isFlag = 0;//1秒定时标志清零
if (999999 == sec)
sec = 0;
else
sec++;//秒计数加1

//以下代码将sec按十进制位从低到高依次提取并转为数码管显示字符
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
}
}
}

/* 定时器中断服务函数 */
void interrupt0 (void) interrupt 1//T0中断
{
TH0 = 0xFC;//重新赋初值
TL0 = 0x67;
cnt++;//计数值加1

if (cnt > 1000)
{
cnt = 0;//清零计数值以重新开始下一秒计时
isFlag = 1;    //设置1秒定时标志位1
}

P0 = 0xFF;//显示消隐

//以下代码完成数码管动态扫描刷新
switch (i)
{
case 0: if (sec >= 0){ADDR2 = 0;ADDR1 = 0;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 1: if (sec >= 10){ADDR2 = 0;ADDR1 = 0;ADDR0 = 1;P0 = LedBuff;}i++;break;
case 2: if (sec >= 100){ADDR2 = 0;ADDR1 = 1;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 3: if (sec >= 1000){ADDR2 = 0;ADDR1 = 1;ADDR0 = 1;P0 = LedBuff;}i++;break;
case 4: if (sec >= 10000){ADDR2 = 1;ADDR1 = 0;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 5: if (sec >= 100000){ADDR2 = 1;ADDR1 = 0;ADDR0 = 1;P0 = LedBuff;}i = 0;break;
default:break;
}
}数码管从999999-0且高位0显示

#include <reg52.h>

sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;

unsigned char code LedChar[] = //数码管显示字符转换表
{
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};

unsigned char LedBuff[] = //数码管显示缓冲区，初值为0xFF确保启动时都不亮
{
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};

unsigned char i = 0;//动态扫描的索引
unsigned int cnt = 0;//记录T0中断次数
unsigned char isFlag = 0;//1s标志位

void main(void)
{
unsigned long sec = 999999;//秒数

ENLED = 0;//使能U3,选择控制数码管
ADDR3 = 1;//因为需要动态改变ADDR0-2的值，所以不需要再初始化了
TMOD = 0x01;//设置T0为模式1
TH0 = 0xFC;//设置T0赋初值为0xFC67,定时1ms
TL0 = 0x67;
TR0 = 1;//启动T0

EA = 1;//使能总中断
ET0 = 1;//使能T0中断

while (1)
{
if (1 == isFlag)//判断1秒定时标志
{
isFlag = 0;//1秒定时标志清零

if (0 == sec)
sec = 999999;
else
sec--;//秒计数减1

//以下代码将sec按十进制位从低到高依次提取并转为数码管显示字符
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
}
}
}

/* 定时器中断服务函数 */
void interrupt0 (void) interrupt 1//T0中断
{
TH0 = 0xFC;//重新赋初值
TL0 = 0x67;
cnt++;//计数值加1

if (cnt > 1000)
{
cnt = 0;//清零计数值以重新开始下一秒计时
isFlag = 1;    //设置1秒定时标志位1
}

P0 = 0xFF;//显示消隐

//以下代码完成数码管动态扫描刷新
switch (i)
{
case 0: ADDR2 = 0;ADDR1 = 0;ADDR0 = 0;i++;P0 = LedBuff;break;
case 1: ADDR2 = 0;ADDR1 = 0;ADDR0 = 1;i++;P0 = LedBuff;break;
case 2: ADDR2 = 0;ADDR1 = 1;ADDR0 = 0;i++;P0 = LedBuff;break;
case 3: ADDR2 = 0;ADDR1 = 1;ADDR0 = 1;i++;P0 = LedBuff;break;
case 4: ADDR2 = 1;ADDR1 = 0;ADDR0 = 0;i++;P0 = LedBuff;break;
case 5: ADDR2 = 1;ADDR1 = 0;ADDR0 = 1;i = 0;P0 = LedBuff;break;
default:break;
}
}数码管从999999-0且高位0不显示

#include <reg52.h>

sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;

unsigned char code LedChar[] = //数码管显示字符转换表
{
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};

unsigned char LedBuff[] = //数码管显示缓冲区，初值为0xFF确保启动时都不亮
{
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};

unsigned char i = 0;//动态扫描的索引
unsigned int cnt = 0;//记录T0中断次数
unsigned char isFlag = 0;//1s标志位
unsigned long sec = 999999;//秒数

void main(void)
{

ENLED = 0;//使能U3,选择控制数码管
ADDR3 = 1;//因为需要动态改变ADDR0-2的值，所以不需要再初始化了
TMOD = 0x01;//设置T0为模式1
TH0 = 0xFC;//设置T0赋初值为0xFC67,定时1ms
TL0 = 0x67;
TR0 = 1;//启动T0

EA = 1;//使能总中断
ET0 = 1;//使能T0中断

while (1)
{
if (1 == isFlag)//判断1秒定时标志
{
isFlag = 0;//1秒定时标志清零

if (0 == sec)
sec = 999999;
else
sec--;//秒计数减1

//以下代码将sec按十进制位从低到高依次提取并转为数码管显示字符
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
LedBuff = LedChar;
}
}
}

/* 定时器中断服务函数 */
void interrupt0 (void) interrupt 1//T0中断
{
TH0 = 0xFC;//重新赋初值
TL0 = 0x67;
cnt++;//计数值加1

if (cnt > 1000)
{
cnt = 0;//清零计数值以重新开始下一秒计时
isFlag = 1;    //设置1秒定时标志位1
}

P0 = 0xFF;//显示消隐

//以下代码完成数码管动态扫描刷新
switch (i)
{
case 0: if (sec >= 0){ADDR2 = 0;ADDR1 = 0;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 1: if (sec >= 10){ADDR2 = 0;ADDR1 = 0;ADDR0 = 1;P0 = LedBuff;}i++;break;
case 2: if (sec >= 100){ADDR2 = 0;ADDR1 = 1;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 3: if (sec >= 1000){ADDR2 = 0;ADDR1 = 1;ADDR0 = 1;P0 = LedBuff;}i++;break;
case 4: if (sec >= 10000){ADDR2 = 1;ADDR1 = 0;ADDR0 = 0;P0 = LedBuff;}i++;break;
case 5: if (sec >= 100000){ADDR2 = 1;ADDR1 = 0;ADDR0 = 1;P0 = LedBuff;}i = 0;break;
default:break;
}
}
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丝甲坞 发表于 2025-10-14 16:59:28

谢谢分享，试用一下

黎娅茜 发表于 2025-10-22 01:24:04

谢谢分享，辛苦了

郦湘云 发表于 2025-11-1 09:42:59

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士沌发表于 2026-1-14 15:36:33

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单于易槐 发表于 2026-1-15 15:18:22

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奸轲嫣 发表于 2026-1-15 18:31:36

谢谢分享，试用一下

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喜欢鼓捣这些软件，现在用得少，谢谢分享！

获弃发表于 2026-1-17 15:20:01

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羽桑发表于 2026-1-26 23:17:04

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喜欢鼓捣这些软件，现在用得少，谢谢分享！

揿纰潦 发表于 2026-1-27 05:11:37

感谢分享，下载保存了，貌似很强大

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中断与数码管动态显示代码