如何在电脑桌面上显示个时钟可以这样解决：
1、点击开始，选择控制面板。
2、在控制面板，查看方式选择小图标，找到桌面小工具。
3、在桌面小工具界面你可以看到很多不同的小工具，选中需要的小工具，然后右键添加，就可以将工具添加到桌面上。
4、上面是系统自带的功能，我们也可以自己从网上下载桌面工具软件，直接从百度搜索，然后下载安装。
5、打开软件后可以看到更多更齐全的小工具。
6、然后需要什么工具，直接打开这个工具就会出现在桌面上。
7、当然我们添加后肯定也想删除，直接将鼠标放在桌面工具上，右侧会出现小叉叉，直接点击就可以了，非常方便。
这就是如何在电脑桌面上显示个时钟的解决步骤。
顶层文件 万年历C #include<reg51h> #include "LCD1602h" #include "DS1302h" #define uchar unsigned char #define uint unsigned int sbit speaker=P2^4; bit key_flag1=0,key_flag2=0; SYSTEMTIME adjusted; uchar sec_add=0,min_add=0,hou_add=0,day_add=0,mon_add=0,yea_add=0; uchar data_alarm[7]={0}; /键盘控制/ int key_scan() //扫描是否有键按下 { int i=0; uint temp; P1=0xf0; temp=P1; if(temp!=0xf0) i=1; else i=0; return i; } uchar key_value() //确定按键的值 { uint m=0,n=0,temp; uchar value; uchar v[4][3]={'2','1','0','5','4','3','8','7','6','b','a','9'} ; P1=0xfe; temp=P1; if(temp!=0xfe)m=0; P1=0xfd;temp=P1 ;if(temp!=0xfd)m=1; P1=0xfb;temp=P1 ;if(temp!=0xfb)m=2; P1=0xf7;temp=P1 ;if(temp!=0xf7)m=3; P1=0xef;temp=P1 ;if(temp!=0xef)n=0; P1=0xdf;temp=P1 ;if(temp!=0xdf)n=1; P1=0xbf;temp=P1 ;if(temp!=0xbf)n=2; value=v[m][n]; return value; } /设置闹铃函数/ void naoling(void) { uchar i=0,l=0,j; init1602(); while(key_flag2&&i<12) if(key_scan()){j=key_value();write_data(j);if(i%2==0)data_alarm[l]=(j-'0')10;else {data_alarm[l]+=(j-'0');l++;}i++;delay(600);} write_com(0x01); } uchar according(void) { uchar k; if(data_alarm[0]==adjustedYear&&data_alarm[1]==adjustedMonth&&data_alarm[2]==adjustedDay&&data_alarm[3]==adjustedHour&&data_alarm[4]==adjustedMinute&&data_alarm[5]==adjustedSecond) k=1; else k=0; return k; } void speak(void) {uint i=50; while(i) {speaker=0; delay(1); speaker=1; delay(1); i--; } } void alarm(void) {uint i=10; while(i) { speak(); delay(10); i--; } } /修改时间 *** 作/ void reset(void) { sec_add=0; min_add=0; hou_add=0; day_add=0; mon_add=0; yea_add=0 ; } void adjust(void) { if(key_scan()&&key_flag1) switch(key_value()) {case '0':sec_add++;break; case '1':min_add++;break; case '2':hou_add++;break; case '3':day_add++;break; case '4':mon_add++;break; case '5':yea_add++;break; case 'b':reset();break; default: break; } adjustedSecond+=sec_add; adjustedMinute+=min_add; adjustedHour+=hou_add; adjustedDay+=day_add; adjustedMonth+=mon_add; adjustedYear+=yea_add; if(adjustedSecond>59) adjustedSecond=adjustedSecond%60; if(adjustedMinute>59) adjustedMinute=adjustedMinute%60; if(adjustedHour>23) adjustedHour=adjustedHour%24; if(adjustedDay>31) adjustedDay=adjustedDay%31; if(adjustedMonth>12) adjustedMonth=adjustedMonth%12; if(adjustedYear>100) adjustedYear=adjustedYear%100; } /中断处理函数/ void changing(void) interrupt 0 using 0 //需要修改时间和日期，或者停止修改 { if(key_flag1)key_flag1=0; else key_flag1=1; } void alarming(void) interrupt 3 using 0 //需要设置闹铃或者停止设置 { if(key_flag2)key_flag2=0; else key_flag2=1; } /主函数/ main() {uint i; uchar l; uchar p1[]="D:",p2[]="T:"; SYSTEMTIME T; EA=1; EX0=1; IT0=1; EA=1; EX1=1; IT1=1; init1602(); Initial_DS1302() ; while(1) { write_com(0x80); write_string(p1,2); write_com(0xc0); write_string(p2,2); DS1302_GetTime(&T) ; adjustedSecond=TSecond; adjustedMinute=TMinute; adjustedHour=THour; adjustedWeek=TWeek; adjustedDay=TDay; adjustedMonth=TMonth; adjustedYear=TYear; for(i=0;i<9;i++) { adjustedDateString[i]=TDateString[i]; adjustedTimeString[i]=TTimeString[i]; } adjust(); if(key_flag2)naoling(); if(according())alarm(); DateToStr(&adjusted); TimeToStr(&adjusted); write_com(0x82); write_string(adjustedDateString,8); write_com(0xc2); write_string(adjustedTimeString,8); delay(10); } （二）头文件1 显示模块 LCD1602H #ifndef LCD_CHAR_1602_2009_5_9 #define LCD_CHAR_1602_2009_5_9 #define uchar unsigned char #define uint unsigned int sbit lcdrs = P2^0; sbit lcdrw = P2^1; sbit lcden = P2^2; void delay(uint z) // 延时 { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void write_com(uchar com) // 写入指令数据到 lcd { lcdrw=0; lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_data(uchar date) // 写入字符显示数据到 lcd { lcdrw=0; lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void init1602() // 初始化设定 { lcdrw=0; lcden=0; write_com(0x3C); write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); } void write_string(uchar pp,uint n) { int i; for(i=0;i<n;i++) write_data(pp[i]); } #endif (三)头文件2 时钟模块 DS1302H #ifndef _REAL_TIMER_DS1302_2009_5_20_ #define _REAL_TIMER_DS1302_2003_5_20_ sbit DS1302_CLK = P2^6; //实时时钟时钟线引脚 sbit DS1302_IO = P2^7; //实时时钟数据线引脚 sbit DS1302_RST = P2^5; //实时时钟复位线引脚 sbit ACC0 = ACC^0; sbit ACC7 = ACC^7; typedef struct SYSTEM_TIME { unsigned char Second; unsigned char Minute; unsigned char Hour; unsigned char Week; unsigned char Day; unsigned char Month; unsigned char Year; unsigned char DateString[9]; //用这两个字符串来放置读取的时间 unsigned char TimeString[9]; }SYSTEMTIME; //定义的时间类型 #define AM(X) X #define PM(X) (X+12) // 转成24小时制 #define DS1302_SECOND 0x80 #define DS1302_MINUTE 0x82 #define DS1302_HOUR 0x84 #define DS1302_WEEK 0x8A #define DS1302_DAY 0x86 #define DS1302_MONTH 0x88 #define DS1302_YEAR 0x8C #define DS1302_RAM(X) (0xC0+(X)2) //用于计算 DS1302_RAM 地址的宏 /内部指令/ void DS1302InputByte(unsigned char d) //实时时钟写入一字节(内部函数) { unsigned char i; ACC = d; for(i=8; i>0; i--) { DS1302_IO = ACC0; DS1302_CLK = 1; DS1302_CLK = 0; ACC = ACC >> 1; //因为在前面已经定义了ACC0 = ACC^0;以便再次利用DS1302_IO = ACC0; } } unsigned char DS1302OutputByte(void) //实时时钟读取一字节(内部函数) { unsigned char i; for(i=8; i>0; i--) { ACC = ACC >>1; ACC7 = DS1302_IO; DS1302_CLK = 1; DS1302_CLK = 0; } return(ACC); } // void Write1302(unsigned char ucAddr, unsigned char ucDa) //ucAddr: DS1302地址, ucData: 要写的数据 { DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr); // 地址，命令 DS1302InputByte(ucDa); // 写1Byte数据 DS1302_CLK = 1; DS1302_RST = 0; } unsigned char Read1302(unsigned char ucAddr) //读取DS1302某地址的数据 { unsigned char ucData; DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr|0x01); // 地址，命令 ucData = DS1302OutputByte(); // 读1Byte数据 DS1302_CLK = 1; DS1302_RST = 0; return(ucData); } void DS1302_SetProtect(bit flag) //是否写保护 { if(flag) Write1302(0x8E,0x10); else Write1302(0x8E,0x00); } void DS1302_SetTime(unsigned char Address, unsigned char Value) // 设置时间函数 { DS1302_SetProtect(0); Write1302(Address, ((Value/10)<<4 | (Value%10))); //将十进制数转换为BCD码 } //在DS1302中的与日历、时钟相关的寄存器存放的数据必须为BCD码形式 void DS1302_GetTime(SYSTEMTIME Time) { unsigned char ReadValue; ReadValue = Read1302(DS1302_SECOND); Time->Second = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); //将BCD码转换为十进制数 ReadValue = Read1302(DS1302_MINUTE); Time->Minute = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_HOUR); Time->Hour = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_DAY); Time->Day = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_WEEK); Time->Week = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_MONTH); Time->Month = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_YEAR); Time->Year = ((ReadValue&0x70)>>4)10 + (ReadValue&0x0F); } unsigned char DataToBCD(SYSTEMTIME Time) { unsigned char D[8]; D[0]=Time->Second/10<<4+Time->Second%10; D[1]=Time->Minute/10<<4+Time->Minute%10; D[2]=Time->Hour/10<<4+Time->Hour%10; D[3]=Time->Day/10<<4+Time->Day%10; D[4]=Time->Month/10<<4+Time->Month%10; D[5]=Time->Week/10<<4+Time->Week%10; D[6]=Time->Year/10<<4+Time->Year%10; return D; } void DateToStr(SYSTEMTIME Time) { //将十进制数转换为液晶显示的ASCII值 Time->DateString[0] = Time->Year/10 + '0'; Time->DateString[1] = Time->Year%10 + '0'; Time->DateString[2] = '-'; Time->DateString[3] = Time->Month/10 + '0'; Time->DateString[4] = Time->Month%10 + '0'; Time->DateString[5] = '-'; Time->DateString[6] = Time->Day/10 + '0'; Time->DateString[7] = Time->Day%10 + '0'; Time->DateString[8] = '\0'; } void TimeToStr(SYSTEMTIME Time) { //将十进制数转换为液晶显示的ASCII值 Time->TimeString[0] = Time->Hour/10 + '0'; Time->TimeString[1] = Time->Hour%10 + '0'; Time->TimeString[2] = ':'; Time->TimeString[3] = Time->Minute/10 + '0'; Time->TimeString[4] = Time->Minute%10 + '0'; Time->TimeString[5] = ':'; Time->TimeString[6] = Time->Second/10 + '0'; Time->TimeString[7] = Time->Second%10 + '0'; Time->DateString[8] = '\0'; } void Initial_DS1302(void) { unsigned char Second; Second=Read1302(DS1302_SECOND); if(Second&0x80) //初始化时间 DS1302_SetTime(DS1302_SECOND,0); } void DS1302_TimeStop(bit flag) // 是否将时钟停止 { unsigned char Data; Data=Read1302(DS1302_SECOND); DS1302_SetProtect(0); if(flag) Write1302(DS1302_SECOND, Data|0x80); else Write1302(DS1302_SECOND, Data&0x7F); } #endifzftzbpujjj1134358763，jaiezwwysu6517560870，2012-2-15 11:08:28
基于c8051f020单片机最小系统的实时时钟显示程序
c8051f020 FYD12864-0402B LCD显示，按键电子时钟//
#include <c8051f020h>
#include<lcdh>
#include <intrinsh>
#define uchar unsigned char
void lcd_ini();
void DISPInitial();
void ascii_change(void);
void delay();
void wri_add(uchar com);
void wri_dat(uchar com1);
void shan(void);
void disp();
void tkey(void);
void PORT_Init (void);
sbit cs=P1^7;
sbit sid=P1^6;
sbit sclk=P1^5;
bit flag=1;
uchar dat,count,f=1;//f测试哪个单元为当前闪烁状态
uchar data clock[3]={24,00,00};
uchar code clockname[10]={"北京时间:"};
uchar data num[6];
/主程序/
void main()
{
lcd_ini();
count=10;//机器周期为1us,每次定时50ms,此变量用来控制循环次数,在下面赋值为20,共定时1秒
TMOD=0x01;
TL0=0XB0;
TH0=0X3C;
EA=1;
ET0=1;
IT0=1;
EX0=1;
TR0=1;
while(1)
{
back:ascii_change();
disp();
delay();
if(flag==1)
goto back;
tkey();
shan();
delay();
}
}
/lcd初始化/
/void lcd_ini()
{
wri_add(0x30);
delay();
wri_add(0x0c);
delay();
wri_add(0x01);
delay();
wri_add(0x06);
delay();
}/
void PORT_Init (void)
{
XBR0 = 0x00; //不让他连上IO口
XBR1 = 0x14; //允许外部中断连在端口上
XBR2 = 0x40; // Enable crossbar and weak pull-ups
P0MDOUT |= 0x00; // enable TX0 as a push-pull output
// P1MDOUT |= 0x07; // enable P16 (LED) as push-pull output
P2MDOUT=0xfe; //为了驱动步进电机的控制线
//P3MDOUT = 0xFF;
P74OUT=0x00; //配置成漏极方式可以让LCD显示成功 ，我试了配置成推挽方式不能正常显示
}
/定时程序/
void timer1() interrupt 1 using 2
{
TL0=0XB0;
TH0=0X3C;
count--;
if(count==0)
{
count=10;
clock[2]++;//秒//
}
else
goto out;
if(clock[2]==60)
{
clock[2]=0;
clock[1]++;//分//
}
if(clock[1]==60)
{
clock[1]=0;
clock[0]++;
}
if(clock[0]==24)//时//
clock[0]=0;
out:_nop_();
}
/十位个位转换成ASCII码/
void ascii_change(void)
{
num[5]=clock[2]-(clock[2]/10)10+0x30;
num[4]=clock[2]/10+0x30;
num[3]=clock[1]-(clock[1]/10)10+0x30;
num[2]=clock[1]/10+0x30;
num[1]=clock[0]-(clock[0]/10)10+0x30;
num[0]=clock[0]/10+0x30;
}
/廷时程序/
void delay()
{
uchar i,j;
for (i=250;i>0;i--)
for (j=250;j>0;j--);
}
/Write address/
void wri_add(uchar com)
{
uchar i,j,k;
cs=0;
cs=1;
dat=0xf8;
for(i=1;i<=8;i++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
dat=com;
dat=dat&0xf0;
for(j=1;j<=8;j++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
dat=com;
dat=_cror_(dat,4);// 此为高低四位交换
dat=dat&0xf0;
for(k=1;k<=8;k++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
}
/Write data/
void wri_dat(uchar com1)
{
uchar i,j,k;
cs=0;
cs=1;
dat=0xfa;
for(i=1;i<=8;i++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
dat=com1;
dat=dat&0xf0;
for(j=1;j<=8;j++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
dat=com1;
dat=_cror_(dat,4);// 此为高低四位交换
dat=dat&0xf0;
for(k=1;k<=8;k++)
{
sid=(bit)(dat&0x80);
sclk=0;
sclk=1;
sclk=0;
dat=dat<<1;
}
}
/display program/ //显示时间
void disp()
{
uchar i,k=0;
wri_add(0x80);
for (i=1;i<=9;i++)
wri_dat(clockname[i-1]);
wri_add(0x90);
for (i=1;i<=6;i++)
{
k++;
if(k==3||k==5)
wri_dat(clockname[8]);//时间之间的冒号。
wri_dat(num[i-1]);
}
}
/闪烁程序/
void shan(void)
{
uchar i,k=0;
wri_add(0x90);
if(f==1)
{
num[0]=' ';
num[1]=' ';
}
else
goto next;
for (i=1;i<=6;i++)
{
k++;
if(k==3||k==5)
wri_dat(clockname[8]);//时间之间的冒号。
wri_dat(num[i-1]);
}
goto return1;
next: if(f==2)
{
num[2]=' ';
num[3]=' ';
}
else
goto next1;
for (i=1;i<=6;i++)
{
k++;
if(k==3||k==5)
wri_dat(clockname[8]);//时间之间的冒号。
wri_dat(num[i-1]);
}
goto return1;
next1: if(f==3)
{
num[4]=' ';
num[5]=' ';
}
else
goto return1;
for (i=1;i<=6;i++)
{
k++;
if(k==3||k==5)
wri_dat(clockname[8]);//时间之间的冒号。
wri_dat(num[i-1]);
}
return1:_nop_();
}
/外部中断/
void intr0() interrupt 0 using 2
{
flag=~flag;//判断是否闪烁位//
TR0=~TR0; //闪关定时否则开定时
f=1;
}
/按键程序/
void tkey(void)
{
uchar judcekey;
judcekey=P1&0x0f;
if(judcekey==0x0f)
goto return2;
/移位键/
if (judcekey==0x0e)
f++;
if (f==4)
f=1;
/加一键/
if(judcekey==0x0d)
{clock[f-1]++;}
if (f==1)
{ if (clock[f-1]==24){
clock[f-1]=0;}
}
else{ if (clock[f-1]==60)
clock[f-1]=0;
}
/减一键/
if(judcekey==0x0b)
{clock[f-1]--;}
if (f==1)
{ if (clock[f-1]==0xff){
clock[f-1]=23;}
}
else
{ if (clock[f-1]==0xff)
clock[f-1]=59;
}
return2:_nop_();
}
//本程序已经调试成功并能够正确执行
一下是一个C语言编写的调动的时钟，
主要是一个清屏函数清除上一秒钟的遗留时间。
根据这个思路你再用C++编写个吧~！
#include <stdioh>
#include <stdlibh>
#include <timeh>
#include <dosh>
int main(void)
{
time_t t;
while(1)
{
time(&t);
printf("Today's date and time:\n%s\n", ctime(&t));
sleep(1);
system("cls");
}
return 0;
}
c++版：
#include <iostreamh>
#include <timeh>
#include <windowsh>
int main(void)
{
time_t t;
while(1)
{
time(&t);
cout<<"Today's date and time:"<<endl<<ctime(&t)<<endl;
Sleep(1000);
system("cls");
}
return 0;
}
#include <stdioh>
struct clock {
int hour;
int minute;
int second;
};
typedef struct clock CLOCK;
/
函数功能：时、分、秒时间的更新
函数参数：无
函数返回值：无
/
void Update(CLOCK myclock) {
myclock->second++;
if (myclock->second == 60) { /若second值为60，表示已过1分钟，则 minute值加1/
myclock->second = 0;
myclock->minute++;
}
if (myclock->minute == 60){ /若minute值为60，表示已过1小时，则 hour值加1/
myclock->minute = 0;
myclock->hour++;
}
if (myclock->hour == 24) { /若hour值为24，则hour的值从0开始计时/
myclock->hour = 0;
}
}
/
函数功能：时、分、秒时间的显示
函数参数：无
函数返回值：无
/
void Display(CLOCK myclock) { /用回车符'\r'控制时、分、秒显示的位置/
printf("%2d:%2d:%2d\r", myclock->hour, myclock->minute, myclock->second);
}
/
函数功能：模拟延迟1秒的时间
函数参数：无
函数返回值：无
/
void Delay(void) {
long t;
for (t = 0; t < 290000000; t++) {
/循环体为空语句的循环，起延时作用/
}
}
int main(){
CLOCK myclock;
long i;
myclockhour = myclockminute = myclocksecond = 0; /hour,minute,second赋初值0/
for (i = 0; i < 100000; i++) { /利用循环结构，控制时钟运行的时间/
Update(&myclock); /时钟更新/
Display(&myclock); /时间显示/
Delay(); /模拟延时1秒/
}
return 0;
}
KEYVAL EQU 30H
KEYTM EQU 31H
KEYSCAN EQU 32H
DAT EQU 33H
SCANLED EQU 39H
CLK EQU 77H
SEC EQU 78H
MIN EQU 79H
HOUR EQU 7AH
PAUSE BIT 00H
DOT BIT 01H
ORG 0000H
LJMP MAIN
ORG 000BH
LJMP T0ISR ;50ms定时
ORG 001BH
LJMP T1ISR ;扫描显示
ORG 0030H
MAIN:
MOV SP,#5FH
MOV TMOD,#11H
MOV TH0,#03CH
MOV TL0,#0B0H
MOV TH1,#0ECH
MOV TL1,#078H
MOV KEYVAL,#0
MOV SCANLED,#0
MOV 33H,#10H
MOV 34H,#10H
MOV 35H,#10H
MOV 36H,#10H
MOV 37H,#10H
MOV 38H,#10H
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
MOV CLK,#0
CLR PAUSE
SETB EA
SETB ET1
SETB TR1
LOOP:
LCALL KEYSEL
MOV A,KEYVAL
CJNE A,#0FFH,LOOP1
SJMP LOOP
LOOP1:
CJNE A,#10,LOOP2 ;“ON”启动
SETB TR0
SETB ET0
SETB PAUSE
SJMP LOOP
LOOP2:
CJNE A,#11,LOOP3 ;“=”清零
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
LCALL DISCHG
SJMP LOOP
LOOP3:
CJNE A,#15,LOOP4 ;“+”暂停
CLR TR0
CLR ET0
CLR PAUSE
SJMP LOOP
LOOP4:
CJNE A,#14,LOOP5 ;“-”清显示暂停
MOV 33H,#10H
MOV 34H,#10H
MOV 35H,#10H
MOV 36H,#10H
MOV 37H,#10H
MOV 38H,#10H
CLR TR0
CLR ET0
CLR PAUSE
SJMP LOOP
LOOP5:
CJNE A,#10,LOOP6 ;数字键
LOOP6:
JC LOOP7
LJMP LOOP
LOOP7:
JNB PAUSE,LOOP8 ;暂停状态可以输入数字键
LJMP LOOP
LOOP8:
MOV 33H,34H
MOV 34H,35H
MOV 35H,36H
MOV 36H,37H
MOV 37H,38H
MOV 38H,KEYVAL
MOV A,33H
SWAP A
ORL A,34H
LCALL BCDH
MOV HOUR,A
MOV A,35H
SWAP A
ORL A,36H
LCALL BCDH
MOV MIN,A
MOV A,37H
SWAP A
ORL A,38H
LCALL BCDH
MOV SEC,A
LJMP LOOP
;------------------
;BCD转换为十六进制
BCDH:
MOV B,#10H
DIV AB
MOV R7,B
MOV B,#10
MUL AB
ADD A,R7
RET
;------------------
;十六进制转换为BCD
HBCD:
MOV B,#10
DIV AB
SWAP A
ORL A,B
RET
;------------------
KEYSEL:
MOV KEYVAL,#0
MOV KEYSCAN,#0EFH
LCALL GETKEY
MOV A,KEYTM
JZ KEYS1
MOV KEYVAL,A
SJMP KEYRTN
KEYS1:
MOV KEYSCAN,#0DFH
LCALL GETKEY
MOV A,KEYTM
JZ KEYS2
CLR C
ADD A,#4
MOV KEYVAL,A
SJMP KEYRTN
KEYS2:
MOV KEYSCAN,#0BFH
LCALL GETKEY
MOV A,KEYTM
JZ KEYS3
CLR C
ADD A,#8
MOV KEYVAL,A
SJMP KEYRTN
KEYS3:
MOV KEYSCAN,#7FH
LCALL GETKEY
MOV A,KEYTM
JZ KEYRTN
CLR C
ADD A,#12
MOV KEYVAL,A
KEYRTN:
LCALL CHGKEY
RET
;--------------------
GETKEY:
MOV KEYTM,#0
MOV A,KEYSCAN
MOV P3,A
NOP
MOV A,P3
ANL A,#0FH
XRL A,#0FH
JZ NOKEY
MOV R2,#10
LCALL DELAY
MOV A,P3
ANL A,#0FH
XRL A,#0FH
JZ NOKEY
MOV A,P3
ANL A,#0FH
MOV R7,A
SF:
MOV A,P3
ANL A,#0FH
XRL A,#0FH
JNZ SF
MOV A,R7
CJNE A,#0EH,NK1
MOV KEYTM,#1
SJMP NOKEY
NK1:
CJNE A,#0DH,NK2
MOV KEYTM,#2
SJMP NOKEY
NK2:
CJNE A,#0BH,NK3
MOV KEYTM,#3
SJMP NOKEY
NK3:
CJNE A,#07H,NOKEY
MOV KEYTM,#4
NOKEY: RET
;--------------------
DELAY:
MOV R3,#50
DELAY1:
MOV R4,#100
DJNZ R4,$
DJNZ R3,DELAY1
DJNZ R2,DELAY
RET
;--------------------
T0ISR:
PUSH ACC
CLR TR0
MOV TH0,#3CH
MOV TL0,#0B0H
SETB TR0
INC CLK
MOV A,CLK
CJNE A,#20,T0ISRE
MOV CLK,#0
INC SEC
MOV A,SEC
CJNE A,#60,T0ISRE
MOV SEC,#0
INC MIN
MOV A,MIN
CJNE A,#60,T0ISRE
MOV MIN,#0
INC HOUR
MOV A,HOUR
CJNE A,#24,T0ISRE
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
T0ISRE:
LCALL DISCHG
POP ACC
RETI
;--------------------
DISCHG:
MOV A,HOUR
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 34H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 33H,A
MOV A,MIN
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 36H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 35H,A
MOV A,SEC
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 38H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 37H,A
RET
;--------------------
T1ISR:
PUSH ACC
CLR TR1
MOV TH1,#0ECH
MOV TL1,#78H
SETB TR1
MOV DPTR,#LEDTAB
T100:
MOV R0,#DAT
MOV A,SCANLED
ADD A,R0
MOV R0,A
MOV A,SCANLED
JNZ T101
MOV P2,#01H
CLR DOT
SJMP T1DIS
T101:
DEC A
JNZ T102
MOV P2,#02H
SETB DOT
SJMP T1DIS
T102:
DEC A
JNZ T103
MOV P2,#04H
CLR DOT
SJMP T1DIS
T103:
DEC A
JNZ T104
MOV P2,#08H
SETB DOT
SJMP T1DIS
T104:
DEC A
JNZ T105
MOV P2,#10H
CLR DOT
SJMP T1DIS
T105:
MOV P2,#20H
CLR DOT
T1DIS:
MOV A,@R0
MOVC A,@A+DPTR
JNB DOT,T1DIS1
ORL A,#01H
T1DIS1:
CPL A
MOV P0,A
INC SCANLED
MOV A,SCANLED
CJNE A,#6,T1END
MOV SCANLED,#0
T1END:
POP ACC
RETI
;--------------------
CHGKEY:
MOV A,KEYVAL
JZ KV16
DEC A
JNZ KV01
MOV KEYVAL,#7
RET
KV01:
DEC A
JNZ KV02
MOV KEYVAL,#4
RET
KV02:
DEC A
JNZ KV03
MOV KEYVAL,#1
RET
KV03:
DEC A
JNZ KV04
MOV KEYVAL,#10
RET
KV04:
DEC A
JNZ KV05
MOV KEYVAL,#8
RET
KV05:
DEC A
JNZ KV06
MOV KEYVAL,#5
RET
KV06:
DEC A
JNZ KV07
MOV KEYVAL,#2
RET
KV07:
DEC A
JNZ KV08
MOV KEYVAL,#0
RET
KV08:
DEC A
JNZ KV09
MOV KEYVAL,#9
RET
KV09:
DEC A
JNZ KV10
MOV KEYVAL,#6
RET
KV10:
DEC A
JNZ KV11
MOV KEYVAL,#3
RET
KV11:
DEC A
JNZ KV12
MOV KEYVAL,#11
RET
KV12:
DEC A
JNZ KV13
MOV KEYVAL,#12
RET
KV13:
DEC A
JNZ KV14
MOV KEYVAL,#13
RET
KV14:
DEC A
JNZ KV15
MOV KEYVAL,#14
RET
KV15:
DEC A
JNZ KV16
MOV KEYVAL,#15
RET
KV16:
MOV KEYVAL,#0FFH
RET
;--------------------
LEDTAB: DB 0FCH ;"0" 00H
DB 60H ;"1" 01H
DB 0DAH ;"2" 02H
DB 0F2H ;"3" 03H
DB 66H ;"4" 04H
DB 0B6H ;"5" 05H
DB 0BEH ;"6" 06H
DB 0E0H ;"7" 07H
DB 0FEH ;"8" 08H
DB 0F6H ;"9" 09H
DB 0EEH ;"A" 0AH
DB 3EH ;"B" 0BH
DB 9CH ;"C" 0CH
DB 7AH ;"D" 0DH
DB 9EH ;"E" 0EH
DB 8EH ;"F" 0FH
DB 00H ;" " 10H
;--------------------
END
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