AT89C51+DS1302+DS18B20六位數(shù)碼管顯示時(shí)鐘程序
#include
#define uchar unsigned char
#define uint unsigned int
#include"DS1302.h"
#include"DS18B20.h"
#define sec 0x80
#define min 0x82
#define hou 0x84
#define read 0x01
unsigned char hour,minute,second,id=0,timecount,re_disp=0,p,n0,n1;
bit flag;
#define leddata P0 //定義數(shù)碼管的段選
sbit ssw=P2^7; //小時(shí)十位
sbit sw=P2^6; //小時(shí)個(gè)位
sbit sfw=P2^5; //分十位
sbit fw=P2^4; //分個(gè)位
sbit wdsw=P2^3; //溫度十位
sbit wdgw=P2^2; //溫度個(gè)位
sbit DOWN=P2^1; //加按鍵
sbit UP=P2^0; //減按鍵
//sbit DQ=P3^0; //DS18B20信號(hào)端
//sbit T_CLK=P3^1; //DS1302的時(shí)鐘端
//sbit T_IO=P3^2; //DS1302的數(shù)據(jù)端
//sbit T_RES=P3^3; //DS1302的復(fù)位端
sbit SET=P3^4; //時(shí)間設(shè)定鍵
unsigned int ok;
unsigned char code tab[]={0x48,0xEE,0x54,0xC4,0xE2,0xC1,0x41,0xEC,0x40,0xC0,0x60};
unsigned char inittime[7]={0x00,0x00,0x12,0x16,0x11,0x06,0x04};
// 秒 分鐘 小時(shí) 日 月 年 星期
void Set_id(unsigned char sel,unsigned char sel_1);
void delays(unsigned char k)
{
unsigned char i,j;
for(i=0;i
for(j=0;j<50;j++);
}
void display(void)
{
if(flag&hour) //為真時(shí)是設(shè)定時(shí)間
{
ssw=0;leddata=0xff;delays(10);ssw=1;
sw=0;leddata=0xff&~((unsigned char)~flag<<6);delays(10);sw=1;
}
else //為假時(shí)為正常走時(shí)
{
leddata=tab[Read1302(hou+1)/16];ssw=0;delays(10);ssw=1;
leddata=tab[Read1302(hou+1)]&~((unsigned char)~flag<<6);sw=0;delays(10);sw=1;
}
if(flag&minute)
{
sfw=0;leddata=0xff&~((unsigned char)~flag<<6);delays(10);sfw=1;
fw=0;leddata=0xff;delays(10);fw=1;
}
else
{
leddata=tab[Read1302(min+1)/16]&~((unsigned char)~flag<<6);sfw=0;delays(10);sfw=1;
leddata=tab[Read1302(min+1)];fw=0;delays(10);fw=1;
}
TR0=0; //關(guān)定時(shí)器
ok=Read_Temperature(); //調(diào)用讀溫度函數(shù)
TR0=1; //開(kāi)定時(shí)器
p=(unsigned char)(ok>>4); //溫度數(shù)據(jù)轉(zhuǎn)換
wdsw=0;leddata=tab[p0/10];delays(10);wdsw=1; //溫度顯示十位
wdgw=0;leddata=tab[p];delays(10);wdgw=1; //溫度顯示個(gè)位
}
void id_case1_key(void) //按鍵加減子程序
{
display();
if (!DOWN) //減少
{
while(!DOWN)display();
re_disp=0;
Set_id(id,0);
}
if (!UP) //增加
{
while(!UP)display();
re_disp=0;
Set_id(id,1);
}
}
void Scan_Key(void) //按鍵掃描程序
{
display();
if(!SET)
{
while(!SET)display();
re_disp=0;
id++;if(id>2)id=0;
}
if(id==0){hour=0;minute=0;second=0;}
if(id==1){hour=1;id_case1_key();}
if(id==2){hour=0;minute=1;id_case1_key();}
// if(id==3){minute=0;second=1;id_case1_key();}
}
//根據(jù)選擇調(diào)整相應(yīng)項(xiàng)目并寫(xiě)入DS1302
void Set_id(unsigned char sel,unsigned char sel_1)
{
signed char max,mini,address,item;
if(sel==1) {address=hou; max=23;mini=0;} //小時(shí)
if(sel==2) {address=min; max=59;mini=0;} //分鐘
// if(sel==3) {address=sec; max=0;mini=0;} //秒
item=Read1302(address+1)/16*10+Read1302(address+1);
if (sel_1==0) item--; else item++;
if(item>max) item=mini;
if(item
Write1302(0x8e,0x00);//允許寫(xiě)操作
Write1302(address,item/10*16+item);
Write1302(0x8e,0x80);//寫(xiě)保護(hù)，禁止寫(xiě)操作
}
void main()
{ TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%6;
EA=1;
ET0=1;
TR0=1;
Write1302(0x90,0xa5);//打開(kāi)充電二級(jí)管 一個(gè)二級(jí)管串聯(lián)一個(gè)2K電阻
Write1302(0x8e,0x80);//寫(xiě)保護(hù)，禁止寫(xiě)操作
if(!UP&!DOWN)Set1302(inittime);
adjust_res(0x7f); //調(diào)整18B20的分辨率 0x1f:0.5; 0x3f:0.25; 0x5f:0.125; 0x7f:0.0625
while(1)
{
Scan_Key(); //調(diào)用按鍵掃描程序
display(); //調(diào)用數(shù)碼管顯示程序
}
}
void t0(void) interrupt 1 using 0
{
TH0=(65535-50000)/256; //50ms定時(shí)
TL0=(65535-50000)%6;
timecount++;re_disp++;
if(timecount>9)
{
timecount=0;
flag=~flag;
}
if(re_disp>200){re_disp=0;if(id)id=0;}
}
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