单片机创意时钟制作（有PCB+程序，可以直接打板） -

#include "STC15.H"
#define _REAL_TIMER_DS1302_2003_7_21_
sbit DS1302_CLK = P5^4; //实时时钟时钟线引脚
sbit DS1302_IO = P5^5; //实时时钟数据线引脚
sbit DS1302_RST = P2^3; //实时时钟复位线引脚
sbit ACC0 = ACC^0;
sbit ACC7 = ACC^7;
sbit col1 = P0^0;//点阵上第22脚
sbit col2 = P0^1;//点阵上第21脚
sbit col3 = P0^2;//点阵上第2脚
sbit col4 = P0^3;//点阵上第19脚
sbit col5 = P0^4;//点阵上第5脚
sbit col6 = P0^5;//点阵上第6脚或17脚
sbit col7 = P0^6;//点阵上第16脚
sbit col8 = P0^7;//点阵上第8脚
sbit col9 = P2^0;//点阵上第13脚
sbit col10 = P2^1;//点阵上第10脚
sbit col11= P2^2;//点阵上第11脚
sbit col12 = P1^0;//点阵上第22脚
sbit col13 = P1^1;//点阵上第21脚
sbit col14 = P1^2;//点阵上第2脚
sbit col15 = P1^3;//点阵上第19脚
sbit col16 = P1^4;//点阵上第5脚
sbit col17 = P1^5;//点阵上第6脚或17脚
sbit col18 = P1^6;//点阵上第16脚
sbit col19 = P1^7;//点阵上第8脚
sbit col20 = P2^4;//点阵上第13脚
sbit col21 = P2^5;//点阵上第10脚
sbit col22 = P2^6;//点阵上第11脚
#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
#define t_hour CurrentTime.TimeString[0]*10+CurrentTime.TimeString[1]
#define t_min CurrentTime.TimeString[2]*10+CurrentTime.TimeString[3]
#define t_sec CurrentTime.TimeString[4]*10+CurrentTime.TimeString[5]
#define t_year CurrentTime.DateString[0]*10+CurrentTime.DateString[1]
#define t_month CurrentTime.DateString[2]*10+CurrentTime.DateString[3]
#define t_day CurrentTime.DateString[4]*10+CurrentTime.DateString[5]
typedef struct __SYSTEMTIME__
{
unsigned char Second;
unsigned char Minute;
unsigned char Hour;
unsigned char Week;
unsigned char Day;
unsigned char Month;
unsigned char Year;
unsigned char DateString[8];
unsigned char TimeString[6];
}SYSTEMTIME; //定义的时间类型
unsigned int time=0;
unsigned char disp[22],*pdisp;
/******************************DS1302时钟模块***************************************/
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; //相当于汇编中的 RRC
DS1302_CLK = 1;
DS1302_CLK = 0;
ACC = ACC >> 1;
}
}
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; //相当于汇编中的 RRC
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)));
}
void DS1302_GetTime(SYSTEMTIME *Time)
{
unsigned char ReadValue;
ReadValue = Read1302(DS1302_SECOND);
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); //八进制转换成十进制
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);
}
void DateToStr(SYSTEMTIME *Time) //
{
Time->DateString[0] = Time->Year/10 ; //分离出个位和十位
Time->DateString[1] = Time->Year%10 ;
Time->DateString[2] = Time->Month/10;
Time->DateString[3] = Time->Month%10 ;
Time->DateString[4] = Time->Day/10 ;
Time->DateString[5] = Time->Day%10 ;
Time->DateString[6] = Time->Week/10 ;
Time->DateString[7] = Time->Week%10 ;
}
void TimeToStr(SYSTEMTIME *Time)
{
Time->TimeString[0] = Time->Hour/10 ;
Time->TimeString[1] = Time->Hour%10 ;
Time->TimeString[2] = Time->Minute/10 ;
Time->TimeString[3] = Time->Minute%10 ;
Time->TimeString[4] = Time->Second/10;
Time->TimeString[5] = Time->Second%10 ;
}
bit Initial_DS1302(void)
{
unsigned char Second=Read1302(DS1302_SECOND);
if(Second&0x80)
{
DS1302_SetTime(DS1302_SECOND,0);
return 1;
}
return 0;
}
/*****************************************************************************/
/************************点阵显示函数**************************/
code char num_font1[]={
0x3E,0x51,0x45,0x3E,//"0"
0x00,0x21,0x7F,0x01,//"1"
0x23,0x45,0x49,0x31,//"2"
0x22,0x49,0x59,0x2E,//"3"
0x0C,0x14,0x24,0x7F,//"4"
0x72,0x51,0x51,0x4E,//"5"
0x0E,0x19,0x29,0x46,//"6"
0x40,0x4F,0x50,0x60,//"7"
0x36,0x49,0x49,0x36,//"8"
0x32,0x49,0x49,0x3E,//"9"
0x00,0x36,0x36,0x00,//"::"
};
void buf_data(char num1,char num2)
{
char i;
pdisp=&disp[0];
for(i=0;i<4;i++)
{
*pdisp = num_font1[4*(num1/10)+i];
pdisp++;
}
*pdisp = 0x00;
pdisp++;
for(i=0;i<4;i++)
{
*pdisp = num_font1[4*(num1%10)+i];
pdisp++;
}
for(i=0;i<4;i++)
{
*pdisp = num_font1[40+i];
pdisp++;
}
for(i=0;i<4;i++)
{
*pdisp = num_font1[4*(num2/10)+i];
pdisp++;
}
*pdisp = 0x00;
pdisp++;
for(i=0;i<4;i++)
{
*pdisp = num_font1[4*(num2%10)+i];
pdisp++;
}
}
void delay(unsigned int xms)//延时函数，大概延时时间
{
unsigned int i,j;
for(i=xms;i>0;i--) //i=xms即延时约xms毫秒
for(j=125;j>0;j--);
}
void led_clear()//清屏
{
P4 &= 0x80;
P1 |= 0xff;
P0 |= 0xff;
P2 |= 0x77;
}
void display_frame()//显示一帧画面
{
char i;
for(i=0;i<22;i++)
{
led_clear();
switch(i+1)
{
case 1: col1=0; break;
case 2: col2=0; break;
case 3: col3=0; break;
case 4: col4=0; break;
case 5: col5=0; break;
case 6: col6=0; break;
case 7: col7=0; break;
case 8: col8=0; break;
case 9: col9=0; break;
case 10: col10=0; break;
case 11: col11=0; break;
case 12: col12=0; break;
case 13: col13=0; break;
case 14: col14=0; break;
case 15: col15=0; break;
case 16: col16=0; break;
case 17: col17=0; break;
case 18: col18=0; break;
case 19: col19=0; break;
case 20: col20=0; break;
case 21: col21=0; break;
case 22: col22=0; break;
default:break;
}
P4=disp[i];
if(time>500)
{
col11 = 1;
col12 = 1;
}
if(time>1000)
{
time=0;
}
delay(5);
}
}
/*****************************************************************/
void Timer0Init(void) //1毫秒@11.0592MHz
{
AUXR |= 0x80; //定时器时钟1T模式
TMOD &= 0xF0; //设置定时器模式
TL0 = 0xCD; //设置定时初值
TH0 = 0xD4; //设置定时初值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
}
void init()//初始化设置，推挽输出（强上拉输出，可达20mA）
{
P1M1 = 0X00;
P1M0 = 0Xff;
P2M1 = 0X00;
P2M0 = 0Xff;
P4M1 = 0X00;
P4M0 = 0Xff;
}
void main()
{
SYSTEMTIME CurrentTime;
init();
led_clear();
Timer0Init();
EA=1; //总中断打开
ET0=1; //定时器中断打开
DS1302_SetTime(DS1302_YEAR,0); // 设置年月日为2000年1月1日
DS1302_SetTime(DS1302_MONTH,1);
DS1302_SetTime(DS1302_DAY,1);
DS1302_SetTime(DS1302_HOUR,0); //设置的时间是01：00：00
DS1302_SetTime(DS1302_MINUTE,0);
DS1302_SetTime(DS1302_SECOND,0);
while(1)
{
DS1302_GetTime(&CurrentTime);//获取当前时间
DateToStr(&CurrentTime);
TimeToStr(&CurrentTime);
buf_data(t_min,t_sec);
display_frame();
}
}
void Timer0_isr(void) interrupt 1
{
time++;
}

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