我的单片机电子时钟设计含源码,仿真原理图 -

#include <reg52.h>
#include "main.h"
#include "seg.h"
#include "ds1302.h"
sbit KEY0 = P3^4;
sbit KEY1 = P3^5;
sbit KEY2 = P3^6;
sbit KEY3 = P3^7;
//按键是否按下的标志位，按下为1，没按下为0
bit isKey0 = 0; //修改
bit isKey1 = 0; //增加---修改显示
bit isKey2 = 0; //减少
bit isKey3 = 0; //确认
//0 正常显示状态 1 修改时间状态
bit changeOrNormalState = 0;
//显示模式 0 显示正常时分秒 1 显示正常年月日 2 显示修改时间下的时分秒 3显示修改时间下的年月日
u8 showMode = 0;
//正在修改的变量 0 秒 1 分 2 时 3 日 4 月 5 年
u8 changeCount = 0;
void Timer0Init(void);
void segBuffChange(void);
void ClockChangeFunction(void);
void dataAdd(void);
void dataSub(void);
void DataTempGet(void);
void main()
{
ds1302init();
Timer0Init();
while(1)
{
ds1302readtime();
ClockChangeFunction();
}
}
/**
* @name SegBuffChange
* @brief 根据显示状态变量，修改现在的显示变量
* @param : [输入/出]
* @retval 返回值
*/
void SegBuffChange()
{
if(showMode == 0)
{
segBuff[5] = second%10;
segBuff[4] = second/10;
segBuff[3] = minute%10;
segBuff[2] = minute/10;
segBuff[1] = hour%10;
segBuff[0] = hour/10;
}else if(showMode == 1)
{
segBuff[5] = day%10;
segBuff[4] = day/10;
segBuff[3] = month%10;
segBuff[2] = month/10;
segBuff[1] = year%10;
segBuff[0] = year/10;
}else if(showMode == 2)
{
segBuff[5] = secondTemp%10;
segBuff[4] = secondTemp/10;
segBuff[3] = minuteTemp%10;
segBuff[2] = minuteTemp/10;
segBuff[1] = hourTemp%10;
segBuff[0] = hourTemp/10;
}else if(showMode == 3)
{
segBuff[5] = dayTemp%10;
segBuff[4] = dayTemp/10;
segBuff[3] = monthTemp%10;
segBuff[2] = monthTemp/10;
segBuff[1] = yearTemp%10;
segBuff[0] = yearTemp/10;
}
}
/**
* @name KeyScan
* @brief 按键按下时，各个状态值变1
* @param mode: 1 连续 0 不连续
* @retval 返回值
*/
void KeyScan(u8 mode)
{
static int keyCount = 0;
static int keyState = 0;
if(mode == 1) keyState=0;
if (keyState == 0 && (KEY0 == 0||KEY1 == 0||KEY2 == 0||KEY3 == 0))
{
keyCount++;
if(keyCount>2)
{
keyState = 1;
keyCount=0;
if(KEY0 == 0) isKey0 = 1;
else if(KEY1 == 0) isKey1 = 1;
else if(KEY2 == 0) isKey2 = 1;
else if(KEY3 == 0) isKey3 = 1;
}
} else if (KEY0 == 1 && KEY1 == 1 && KEY2 == 1 && KEY3 == 1)
{
keyState = 0;
}
}
/**
* @name ClockChangeFunction
* @brief 按键按下后的执行函数
* @param : [输入/出]
* @retval 返回值
*/
void ClockChangeFunction()
{
if(isKey0 == 1)
{
isKey0 = 0;
if(changeCount == 0 && changeOrNormalState == 0)//修改的位选为0，即为秒，同时显示状态为正常显示状态下
{
changeOrNormalState = 1;//显示状态改为修改时间模式
DataTempGet();//获取修改前的时间变量值
showMode = 2;//显示模式为显示修改时间下的时分秒
}else if(changeOrNormalState == 1)//假如为显示模式
{
changeCount++;//按键按下位次++
if(changeCount > 5)
changeCount = 0;
if(changeCount > 2)//时分秒是0、1、2，大于2就要换成年月日显示
showMode = 3;//显示模式为显示修改时间下的年月日
else
showMode = 2;
}
}else if(isKey1 == 1)
{
isKey1 = 0;
if(changeOrNormalState == 1)//显示状态为修改时间模式
{
dataAdd();//对应位次时间变量增加
}else //正常显示模式
{
if(showMode == 0)//切换时间和日期的显示
showMode = 1;
else if(showMode == 1)
showMode = 0;
}
}else if(isKey2 == 1)
{
isKey2 = 0;
if(changeOrNormalState == 1)//和增加一样
{
dataSub();
}
}else if(isKey3 == 1)
{
isKey3 = 0;
if(changeOrNormalState == 1)//在修改模式下按下
{
changeOrNormalState = 0;//变为正常显示模式
ds1302writetime();//写入修改后的时间
showMode = 0;//显示模式为时分秒
changeCount = 0;//修改位次归零
}
}
}
/**
* @name DataTempGet
* @brief 修改按键按下后，将现在的时间，放入temp中
* @param : [输入/出]
* @retval 返回值
*/
void DataTempGet()
{
secondTemp = second;
minuteTemp = minute;
hourTemp = hour;
dayTemp = day;
monthTemp = month;
weekTemp = week;
yearTemp = year;
}
/**
* @name dataAdd
* @brief 增加按键按下后，时间变量的变化方式，主要是有个平闰年的处理，其他都比较正常
* @param : [输入/出]
* @retval 返回值
*/
void dataAdd()
{
if(changeCount == 0)
{
secondTemp ++;
if(secondTemp > 59)
secondTemp = 0;
}else if(changeCount == 1)
{
minuteTemp ++;
if(minuteTemp > 59)
minuteTemp = 0;
}else if(changeCount == 2)
{
hourTemp ++;
if(hourTemp > 23)
hourTemp = 0;
}else if(changeCount == 3)
{
dayTemp ++;
if(monthTemp == 1 || monthTemp == 3 || monthTemp == 5 || monthTemp == 7 || monthTemp == 8 || monthTemp == 10 || monthTemp == 12)
{
if(dayTemp > 31)
dayTemp = 1;
}else if(monthTemp == 3 || monthTemp == 6 || monthTemp == 9 || monthTemp == 11)
{
if(dayTemp > 30)
dayTemp = 1;
}else if(monthTemp == 2)
{
if((2000+year)%400==0)
{
if(dayTemp > 29)
dayTemp = 1;
}
else
{
if((2000+year)%4==0&&(2000+year)%100!=0)
{
if(dayTemp > 29)
dayTemp = 1;
}else
{
if(dayTemp > 28)
dayTemp = 1;
}
}
}
}else if(changeCount == 4)
{
monthTemp ++;
if(monthTemp > 12)
monthTemp = 1;
}else if(changeCount == 5)
{
yearTemp ++;
if(yearTemp > 99)
yearTemp = 0;
}
}
/**
* @name dataSub
* @brief 减少按键按下后，时间变量的变化方式
* @param : [输入/出]
* @retval 返回值
*/
void dataSub()
{
if(changeCount == 0)
{
secondTemp --;
if((char)secondTemp < 0)
secondTemp = 59;
}else if(changeCount == 1)
{
minuteTemp --;
if((char)minuteTemp < 0)
minuteTemp = 59;
}else if(changeCount == 2)
{
hourTemp --;
if((char)hourTemp < 0)
hourTemp = 23;
}else if(changeCount == 3)
{
dayTemp --;
if(monthTemp == 1 || monthTemp == 3 || monthTemp == 5 || monthTemp == 7 || monthTemp == 8 || monthTemp == 10 || monthTemp == 12)
{
if(dayTemp < 1)
dayTemp = 31;
}else if(monthTemp == 3 || monthTemp == 6 || monthTemp == 9 || monthTemp == 11)
{
if(dayTemp < 1)
dayTemp = 30;
}else if(monthTemp == 2)
{
if((2000+year)%400==0)
{
if(dayTemp < 1)
dayTemp = 29;
}
else
{
if((2000+year)%4==0&&(2000+year)%100!=0)
{
if(dayTemp < 1)
dayTemp = 29;
}else
{
if(dayTemp < 1)
dayTemp = 28;
}
}
}
}else if(changeCount == 4)
{
monthTemp --;
if(monthTemp < 1)
monthTemp = 12;
}else if(changeCount == 5)
{
yearTemp --;
if((char)yearTemp < 0)
yearTemp = 99;
}
}
/**
* @name dataBlink
* @brief 修改时间模式下，选中的时间变量闪烁
* @param : [输入/出]
* @retval 返回值
*/
void dataBlink()
{
static u8 blinkCount = 0;
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