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#include "config.h"
#include "DS1302.H"
#include "TFT144_ST7735.h"
#include "ds18b20.h"
#include "nongli.h"
//bit debug_flag = 0; //debug mode = 1, uart printf enable
bit timer_flag_250ms = 0; //250ms定時觸發標志位
bit timer_flag_1s = 0; //1s定時觸發標志位
bit timer_flag_2s = 0; //2s定時觸發標志位
bit timer_flag_5s = 0; //5s定時觸發標志位
sbit key1=P3^3;
sbit key2=P3^1;
sbit key3=P3^2;
bit lock1,lock2,lock3;
uint8 cont1,cont2,cont3,set_num;
uint8 T0RH = 0; //T0重載值的高字節
uint8 T0RL = 0; //T0重載值的低字節
void Timer0Init(void); //10毫秒@11.0592MHz
void ReadAndShowRtc();
void ReadAndShowTemperature(int8 comp);
/////////////////////////////////////
void LCD_Show_Format() //固定顯示內容
{
Display_Pure_Color(COLOR_BLACK);//背景色
// Display_Pure_Color(COLOR_LIGHT_BLUE); //背景色
// YYYY-MM-DD
Display_Digit_12x16(4+0, 4, COLOR_SILVER, COLOR_BLACK, 2); //2
Display_Digit_12x16(4+12, 4, COLOR_SILVER, COLOR_BLACK, 0); //0
// Display_Digit_12x16(4+24, 4, COLOR_SILVER, COLOR_BLACK, 2); //2
// Display_Digit_12x16(4+36, 4, COLOR_SILVER, COLOR_BLACK, 2); //2
Display_Digit_12x16(4+48, 4, COLOR_SILVER, COLOR_BLACK, 10); //-
// Display_Digit_12x16(4+60, 4, COLOR_SILVER, COLOR_BLACK, 0); //0
// Display_Digit_12x16(4+72, 4, COLOR_SILVER, COLOR_BLACK, 6); //6
Display_Digit_12x16(4+84, 4, COLOR_SILVER, COLOR_BLACK, 10); //-
// Display_Digit_12x16(4+96, 4, COLOR_SILVER, COLOR_BLACK, 0); //0
// Display_Digit_12x16(4+108, 4, COLOR_SILVER, COLOR_BLACK, 8); //8
// 星期三
Display_HZ_16x16(0,24, COLOR_SILVER, COLOR_BLACK, 0); //星
Display_HZ_16x16(16,24, COLOR_SILVER, COLOR_BLACK, 1); //期
// Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 4); //三
// HH:MI:SS
// Display_Digit_24x48(0, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, 1);
// Display_Digit_24x48(24, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, 2);
Display_Digit_24x48(48, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, 10);//冒號
// Display_Digit_24x48(72, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, 2);
// Display_Digit_24x48(96, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, 1);
// 25.0℃
// Display_Digit_12x24(0, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 2); //2
// Display_Digit_12x24(12, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 5); //5
Display_Digit_12x24(24, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 12); //.
// Display_Digit_12x24(36, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 0); //0
Display_Digit_16x24(48, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 13); //℃
}
///////////////////////////
void keyscan() //按鍵掃描
{
uchar minute,hour,day,month,year;
year=BCD_Chg_Dat(read_1302(read_nian));
month=BCD_Chg_Dat(read_1302(read_yue));
day=BCD_Chg_Dat(read_1302(read_ri));
hour=BCD_Chg_Dat(read_1302(read_shi));
minute=BCD_Chg_Dat(read_1302(read_fen));
if(key1)
{
lock1=0;
cont1=0;
}
else if(lock1==0)
{
cont1++;
if(cont1>10)
{
cont1=0;
lock1=1;
set_num++;
if(set_num==1)
{
write_1302(0x8e, 0x00); //撤銷寫保護以允許寫入數據
write_1302(write_miao,0x80); //寫秒80，時鐘停止走時;
}
if(set_num==6) //調時完畢，時鐘啟動
{
set_num=0;
write_1302(write_miao,0x00); //寫秒0，時鐘啟動走時
write_1302(0x8e,0x80); //保護啟動
}
}
}
if(key2)
{
lock2=0;
cont2=0;
}
else if(lock2==0) //短按加
{
cont2++;
if(cont2>10)
{
cont2=0;
lock2=1;
switch(set_num)
{
case 1: year++;
if(year==99)
year=21;
write_1302(write_nian,Dat_Chg_BCD(year)); //寫年
break;
case 2: month++;
if(month==13)
month=1;
if(month==2 && day>28){day=28;write_1302(write_ri,Dat_Chg_BCD(day));}
write_1302(write_yue,Dat_Chg_BCD(month)); //寫月
break;
//公歷閏年遵循的規律為: 四年一閏,百年不閏,四百年再閏
case 3: day++; //if((year % 400 == 0)||(year % 4 == 0)&&(year % 100 != 0))閏年的計算方法
if((month==2&&year%4!=0)&&day>28) day=1;//平年2月28天
if((month==2&&year%4==0)&&day>29) day=1;//閏年2月29天
if((month==1 || month==3 ||month==5 ||month==7 ||month==8 ||month==10 || month==12)&&day>31)day=1;//31天的月份
if((month==4 || month==6 ||month==9 ||month==11)&&day>30 )day=1;//30天的月份
write_1302(write_ri,Dat_Chg_BCD(day)); //寫日
break;
case 4: hour++;
if(hour==24)
hour=0;
write_1302(write_shi,Dat_Chg_BCD(hour)); //寫小時
break;
case 5: minute++;
if(minute==59)
minute=0;
write_1302(write_fen,Dat_Chg_BCD(minute)); //寫分鐘
break;
}
}
}
else if(cont2<100) //長按連加
{
cont2++;
if(cont2==100)
{
cont2=70;
switch(set_num)
{
case 1: year++;
if(year==99)
year=21;
write_1302(write_nian,Dat_Chg_BCD(year)); //寫年
break;
case 2: month++;
if(month==13)
month=1;
if(month==2 && day>28){day=28;write_1302(write_ri,Dat_Chg_BCD(day));}
write_1302(write_yue,Dat_Chg_BCD(month)); //寫月
break;
case 3: day++;
if((month==2&&year%4!=0)&&day>28) day=1;//平年2月28天
if((month==2&&year%4==0)&&day>29) day=1;//閏年2月29天
if((month==1 || month==3 ||month==5 ||month==7 ||month==8 ||month==10 || month==12)&&day>31)day=1;
if((month==4 || month==6 ||month==9 ||month==11)&&day>30 )day=1;
write_1302(write_ri,Dat_Chg_BCD(day)); //寫日
break;
case 4: hour++;
if(hour==24)
hour=0;
write_1302(write_shi,Dat_Chg_BCD(hour)); //寫小時
break;
case 5: minute++;
if(minute==59)
minute=0;
write_1302(write_fen,Dat_Chg_BCD(minute)); //寫分鐘
break;
}
}
}
///////////////////////////////
if(key3)
{
lock3=0;
cont3=0;
}
else if(lock3==0)//短按減
{
cont3++;
if(cont3>10)
{
cont3=0;
lock3=1;
switch(set_num)
{
case 1: year--;
if(year==21)
year=99;
write_1302(write_nian,Dat_Chg_BCD(year)); //寫年
break;
case 2: month--;
if(month==0)
month=12;
if(month==2 && day>28){day=28;write_1302(write_ri,Dat_Chg_BCD(day));}
write_1302(write_yue,Dat_Chg_BCD(month)); //寫月
break;
case 3: day--;
if((month==2&&year%4!=0)&&day==0) day=28;//平年2月28天
if((month==2&&year%4==0)&&day==0) day=29;//閏年2月29天
if((month==1 || month==3 ||month==5 ||month==7 ||month==8 ||month==10 || month==12)&&day==0)day=31;
if((month==4 || month==6 ||month==9 ||month==11)&&day==0 )day=30;
write_1302(write_ri,Dat_Chg_BCD(day)); //寫日
break;
case 4: hour--;
if(hour==255)
hour=23;
write_1302(write_shi,Dat_Chg_BCD(hour)); //寫小時
break;
case 5: minute--;
if(minute==255)
minute=59;
write_1302(write_fen,Dat_Chg_BCD(minute)); //寫分鐘
break;
}
}
}
else if(cont3<100) //長按連減
{
cont3++;
if(cont3==100)
{
cont3=70;
switch(set_num)
{
case 1: year--;
if(year==21)
year=99;
write_1302(write_nian,Dat_Chg_BCD(year)); //寫年
break;
case 2: month--;
if(month==0)
month=12;
if(month==2 && day>28){day=28;write_1302(write_ri,Dat_Chg_BCD(day));}
write_1302(write_yue,Dat_Chg_BCD(month)); //寫月
break;
case 3: day--;
if((month==2&&year%4!=0)&&day==0) day=28;//平年2月28天
if((month==2&&year%4==0)&&day==0) day=29;//閏年2月29天
if((month==1 || month==3 ||month==5 ||month==7 ||month==8 ||month==10 || month==12)&&day==0)day=31;
if((month==4 || month==6 ||month==9 ||month==11)&&day==0 )day=30;
write_1302(write_ri,Dat_Chg_BCD(day)); //寫日
break;
case 4: hour--;
if(hour==255)
hour=23;
write_1302(write_shi,Dat_Chg_BCD(hour)); //寫小時
break;
case 5: minute--;
if(minute==255)
minute=59;
write_1302(write_fen,Dat_Chg_BCD(minute)); //寫分鐘
break;
}
}
}
}
/////////////////////////
/*顯示農歷日期---------------------------------------------------------------*/
void displaynl(void)
{
nian=read_1302(read_nian);
yue=read_1302(read_yue);
ri=read_1302(read_ri);
Conversion(0,nian,yue,ri); //公歷轉農歷
if (month_moon==1) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 15);}//正
if (month_moon==2) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 3);} //二
if (month_moon==3) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 4);} //三
if (month_moon==4) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 5);} //四
if (month_moon==5) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 6);} //五
if (month_moon==6) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 7);} //六
if (month_moon==7) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 9);} //七
if (month_moon==8) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 10);}//八
if (month_moon==9) {Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 11);}//九
if (month_moon==10){Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 12);}//十
if (month_moon==11){Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 13);}//冬
if (month_moon==12){Display_HZ_16x16(64,24, COLOR_SILVER, COLOR_BLACK, 14);}//臘
Display_HZ_16x16(80,24, COLOR_SILVER, COLOR_BLACK, 16); //顯示“月”字
if (day_moon==1)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 2);//一
}
if (day_moon==2)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 3);//二
}
if (day_moon==3)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 4);//三
}
if (day_moon==4)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 5);//四
}
if (day_moon==5)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 6);//五
}
if (day_moon==6)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 7);//六
}
if (day_moon==7)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 9);//七
}
if (day_moon==8)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 10);//八
}
if (day_moon==9)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 11);//九
}
if (day_moon==10)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 17);//初
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 12);//十
}
if (day_moon==11)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 2);//一
}
if (day_moon==12)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 3);//二
}
if (day_moon==13)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 4);//三
}
if (day_moon==14)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 5);//四
}
if (day_moon==15)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 6);//五
}
if (day_moon==16)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 7);//六
}
if (day_moon==17)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 9);//七
}
if (day_moon==18)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 10);//八
}
if (day_moon==19)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 12);//十
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 11);//九
}
if (day_moon==20)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 3);//二
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 12);//十
}
if (day_moon==21)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 2);//一
}
if (day_moon==22)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 3);//二
}
if (day_moon==23)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 4);//三
}
if (day_moon==24)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 5);//四
}
if (day_moon==25)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 6);//五
}
if (day_moon==26)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 7);//六
}
if (day_moon==27)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 9);//七
}
if (day_moon==28)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 10);//八
}
if (day_moon==29)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 18);//廿
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 11);//九
}
if (day_moon==30)
{
Display_HZ_16x16(96,24, COLOR_SILVER, COLOR_BLACK, 4);//三
Display_HZ_16x16(112,24, COLOR_SILVER, COLOR_BLACK, 12);//十
}
}
////////////////////////////
void displayxq(void) //顯示星期
{
unsigned char sel,dd,mo,yy;
dd = read_1302(read_ri);//日
mo = read_1302(read_yue);//月
yy = read_1302(read_nian);//年
Conver_week(0,yy,mo,dd);//調用公歷換算星期子函數
sel=week;//week是公歷轉換星期子函數的運行結果，結果為0-6，0是星期日
if(sel==0) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 8);} //0=星期日
if(sel==6) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 7);} //
if(sel==5) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 6);} //
if(sel==4) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 5);} //
if(sel==3) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 4);} //
if(sel==2) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 3);} //
if(sel==1) {Display_HZ_16x16(32,24, COLOR_SILVER, COLOR_BLACK, 2);} //星期一
}
/////////////////////////
void main()
{
int8 slen = 0;
uint8 pdata uart_cmd_buf[64] = {0};
DS18B20_Start();
Timer0Init(); //T0定時10ms
DS1302_Init(); //初始化RTC時鐘
/*
#ifdef MCU_STC12
//P3.2 set as push-pull output mode, for LCD backlight
P3M1 &= ~(1<<2);
P3M0 |= (1<<2);
#endif */
SPI_Init();
LCD_Init();
delay_ms(500);
LCD_Show_Format();
while(1)
{
if (timer_flag_250ms) //每250ms讀取一次時間
{
ReadAndShowRtc();
displaynl();
displayxq();
timer_flag_250ms = 0;
}
if (timer_flag_5s) //每隔5s執行以下分支
{
ReadAndShowTemperature(-5);
timer_flag_5s = 0;
}
}
}
void ReadAndShowRtc() //讀rtc并顯示
{
read_rtc();
if(set_num==1)
{
Display_Digit_12x16(4+24, 4, COLOR_SILVER, COLOR_BLUE, nian/10);
Display_Digit_12x16(4+36, 4, COLOR_SILVER, COLOR_BLUE, nian%10);
}
else
{
Display_Digit_12x16(4+24, 4, COLOR_SILVER, COLOR_BLACK, nian/10);
Display_Digit_12x16(4+36, 4, COLOR_SILVER, COLOR_BLACK, nian%10);
}
if(set_num==2)
{
Display_Digit_12x16(4+60, 4, COLOR_SILVER, COLOR_BLUE, yue/10);
Display_Digit_12x16(4+72, 4, COLOR_SILVER, COLOR_BLUE, yue%10);
}
else
{
Display_Digit_12x16(4+60, 4, COLOR_SILVER, COLOR_BLACK, yue/10);
Display_Digit_12x16(4+72, 4, COLOR_SILVER, COLOR_BLACK, yue%10);
}
if(set_num==3)
{
Display_Digit_12x16(4+96, 4, COLOR_SILVER, COLOR_BLUE, ri/10);
Display_Digit_12x16(4+108, 4, COLOR_SILVER, COLOR_BLUE, ri%10);
}
else
{
Display_Digit_12x16(4+96, 4, COLOR_SILVER, COLOR_BLACK, ri/10);
Display_Digit_12x16(4+108, 4, COLOR_SILVER, COLOR_BLACK, ri%10);
}
if(set_num==4)
{
Display_Digit_24x48(0, 44, COLOR_YELLOW_GREEN, COLOR_BLUE, shi /10);
Display_Digit_24x48(24, 44, COLOR_YELLOW_GREEN, COLOR_BLUE, shi %10);
}
else
{
Display_Digit_24x48(0, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, shi /10);
Display_Digit_24x48(24, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, shi %10);
}
if(set_num==5)
{
Display_Digit_24x48(72, 44, COLOR_YELLOW_GREEN, COLOR_BLUE, fen /10);
Display_Digit_24x48(96, 44, COLOR_YELLOW_GREEN, COLOR_BLUE, fen %10);
}
else
{
Display_Digit_24x48(72, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, fen /10);
Display_Digit_24x48(96, 44, COLOR_YELLOW_GREEN, COLOR_BLACK, fen %10);
}
Display_Digit_12x24(100,100, COLOR_RED, COLOR_BLACK, miao /10); // 秒
Display_Digit_12x24(100+12,100, COLOR_RED, COLOR_BLACK, miao %10); //秒
// 字顏色底色
}
void ReadAndShowTemperature(int8 comp)
{
int8 slen = 0, n = 0;
static uint8 pdata sbuf[5+1] = {' ', ' ', ' ', '.', ' ', 0};
uint16 tmp_n = 0;
// DS18B20的小數位四舍五入顯示結果速查表，4bit=索引取值范圍 0 - 15
uint8 code dect_lookup_tab[] = {0, 1, 1, 2, 3, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 9};
if(DS18B20_Get_Temperature(&ds18b20_temp_r, &ds18b20_temp_sign_r))
{
//ds18b20_temp_r = ds18b20_temp_r * 10 * 0.0625 + 0.5;
if(ds18b20_temp_r != ds18b20_temp_s || ds18b20_temp_sign_r != ds18b20_temp_sign_s)
{
int8 intT = ds18b20_temp_r >> 4; //分離出溫度值整數部分
int8 decT = ds18b20_temp_r & 0x0F; //分離出溫度值小數部分，DS18B20的小數位一共4bit，乘以0.625（也就是10/16）后對0.5作四舍五入可以得到比較精確的數值
// if(1 == debug_flag) printf(">raw:intT.decT = (%c)%bd.%bd\r\n", ds18b20_temp_sign_r > 0 ? '+' : '-', intT, dect_lookup_tab[decT]);
//針對個體DS18B20模塊，進行溫度補償處理，減少顯示溫度與實際溫度誤差
tmp_n = 10 * intT + dect_lookup_tab[decT];
tmp_n += (ds18b20_temp_sign_r > 0 ? comp : -comp);
intT = tmp_n / 10;
decT = tmp_n % 10;
// 在液晶屏上顯示溫度
if(ds18b20_temp_sign_r >= 0 && ' ' != sbuf[0])
{
sbuf[0] = ' ';
Display_Digit_12x24(22+0, 100, COLOR_BLACK, COLOR_BLACK, 10);
}
else if(ds18b20_temp_sign_r < 0 && '-' != sbuf[0])
{
sbuf[0] = '-';
Display_Digit_12x24(22+0, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, 10);
}
n = intT / 10;
if('0' + n != sbuf[1])
{
sbuf[1] = '0' + n;
Display_Digit_12x24(0, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, n);
}
n = intT % 10;
if('0' + n != sbuf[2])
{
sbuf[2] = '0' + n;
Display_Digit_12x24(12, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, n);
}
n = decT;
if('0' + n != sbuf[4])
{
sbuf[4] = '0' + n;
Display_Digit_12x24(36, 100, COLOR_LIGHT_BLUE, COLOR_BLACK, n);
}
ds18b20_temp_s = ds18b20_temp_r;
ds18b20_temp_sign_s = ds18b20_temp_sign_r;
}
}
DS18B20_Start(); // 重新啟動下一次轉換
}
void Timer0Init(void) //10毫秒@11.0592MHz
{
AUXR &= 0x7F; //定時器時鐘12T模式
TMOD &= 0xF0; //設置定時器模式
TMOD |= 0x01; //配置T0為模式1
T0RH = 0xDC; //T0重載值的高字節
T0RL = 0x00; //T0重載值的低字節
TH0 = T0RH; //設置定時初值
TL0 = T0RL; //設置定時初值
ET0 = 1; //使能T0中斷
TF0 = 0; //清除TF0標志
TR0 = 1; //定時器0開始計時
EA = 1;
}
/* T0中斷服務函數，實現系統定時處理 */
void Timer0_Interrupt_Service() interrupt 1
{
static uint8 pdata tmr1s = 0;
static uint8 pdata tmr2s = 0;
static uint8 pdata tmr5s = 0;
static uint8 pdata tmr250ms = 0;
TH0 = T0RH; //重新加載重載值
TL0 = T0RL;
tmr250ms++; //定時250ms
if (tmr250ms >= 250/TIMER0_SLICE_MS)
{
tmr250ms = 0;
timer_flag_250ms = 1;
tmr1s++; //定時1s
if (tmr1s >= 4)
{
tmr1s = 0;
timer_flag_1s = 1;
tmr2s++; //定時2s
tmr5s++; //定時5s
}
if (tmr2s >= 2)
{
tmr2s = 0;
timer_flag_2s = 1;
}
if (tmr5s >= 5)
{
tmr5s = 0;
timer_flag_5s = 1;
}
}
keyscan();
}

復制代碼

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