另外還可參考他人一篇博文，寫的挺多的：http://wujieflash.blog.163.com/blog/static/5024751920080226525471/

代碼包下載：http://qylk2011.googlecode.com/files/time.rar

代碼如下：

//使用4M晶振

#include
__CONFIG(XT&WDTDIS);
#define Rssp_On 0x3f//顯示開指令
#define Rssp_Off 0x3e//顯示關(guān)指令
#define Col_Add 0x40//列
#define Page_Add 0xb8//頁
#define Start_Line 0xc0//起始行

#define Rs RC2 //定義12864液晶接口
#define RW RC1
#define Ce RC0
#define Cs1 RC3
#define Cs2 RC4

#define T_CLK RA1 //實(shí)時(shí)時(shí)鐘時(shí)鐘線引腳
#define T_IO RA2 //實(shí)時(shí)時(shí)鐘數(shù)據(jù)線引腳
#define T_RST RA0 //實(shí)時(shí)時(shí)鐘復(fù)位線引腳
#define TRI TRISA2 //I/O作為輸入

#define DQ RA3 //定義18B20數(shù)據(jù)端口
#define DQ_DIR TRISA3 //定義18B20D口方向寄存器
#define DQ_HIGH() DQ_DIR =1 //設(shè)置數(shù)據(jù)口為輸入
#define DQ_LOW() DQ = 0; DQ_DIR = 0 //設(shè)置數(shù)據(jù)口為輸出
unsigned char temp1; //采集到的溫度高8位
unsigned char temp2; //采集到的溫度低8位，轉(zhuǎn)換后的溫度值BCD碼形式
const unsigned char tablexiao[16]={0,0,1,2,2,3,4,4,5,6,6,7,8,8,9,9};
unsigned char moon[3];
unsigned char m_temp[3];
unsigned char timebuf[7];
bit display_time; //刷新時(shí)間顯示標(biāo)志位
bit display_tem; //刷新溫度顯示標(biāo)志位
bit tem_en; //啟動溫度顯示標(biāo)志位
unsigned char n; //輔助于timer1
unsigned char n2; //輔助于timer1
const unsigned char shuzi[]={
/*-- 文字: 0 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,

/*-- 文字: 1 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x20,0x30,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,

/*-- 文字: 2 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x60,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x20,0x00,

/*-- 文字: 3 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x30,0x08,0x08,0x08,0x08,0xF0,0x00,0x00,0x18,0x20,0x20,0x21,0x21,0x1E,0x00,

/*-- 文字: 4 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x06,0x05,0x04,0x04,0x04,0x3F,0x04,

/*-- 文字: 5 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0xF8,0x48,0x48,0x48,0x48,0x88,0x00,0x00,0x18,0x20,0x20,0x20,0x20,0x1F,0x00,

/*-- 文字: 6 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0xE0,0x10,0x88,0x88,0x88,0x30,0x00,0x00,0x0F,0x11,0x20,0x20,0x20,0x1F,0x00,

/*-- 文字: 7 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x08,0x08,0x08,0x08,0xC8,0x38,0x00,0x00,0x00,0x00,0x30,0x0E,0x01,0x00,0x00,

/*-- 文字: 8 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x60,0x90,0x08,0x08,0x08,0x90,0x60,0x00,0x0C,0x12,0x21,0x21,0x21,0x12,0x0C,

/*-- 文字: 9 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0xF0,0x08,0x08,0x08,0x10,0xE0,0x00,0x00,0x19,0x22,0x22,0x22,0x11,0x0F,0x00,

/*-- 文字: : --*/
/*-- 宋體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,

/*-- 文字: . --11*/
/*-- 宋體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=8x16 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,
};

const unsigned char hanzi[]=
{
/*-- 文字: 年 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x20,0x30,0xDC,0xCF,0xCF,0xCC,0xCC,0xFC,0xFC,0xCC,0xCC,0xCC,0x0C,0x00,0x00,
0x0C,0x0C,0x0C,0x0F,0x0F,0x0C,0x0C,0x0C,0x7F,0x7F,0x0C,0x0C,0x0C,0x0C,0x0C,0x00,

/*-- 文字: 月 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x00,0xFE,0xFE,0x26,0x26,0x26,0x26,0x26,0x26,0xFE,0xFE,0x00,0x00,0x00,
0x00,0x40,0x70,0x3F,0x0F,0x03,0x03,0x03,0x03,0x23,0x63,0x7F,0x3F,0x00,0x00,0x00,

//*-- 文字: 星 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x7E,0xFE,0xD6,0x56,0x56,0xD6,0xD6,0x56,0x56,0x7E,0x7E,0x00,0x00,0x00,
0x00,0x66,0x67,0x6B,0x6B,0x6B,0x6B,0x7F,0x7F,0x6B,0x6B,0x6B,0x6B,0x60,0x60,0x00,

/*-- 文字: 期 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x0C,0xFF,0xFF,0xAC,0xFF,0xFF,0x0C,0xFE,0xFE,0x66,0x66,0xFE,0xFE,0x00,0x00,
0x26,0x36,0x1F,0x07,0x06,0x1F,0x57,0x66,0x3F,0x1F,0x03,0x63,0x7F,0x3F,0x00,0x00,

/*-- 文字: 一 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

/*-- 文字: 二 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x00,0x00,0x00,
0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x00,

/*-- 文字: 三 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x0C,0x8C,0x8C,0x8C,0x8C,0x8C,0x8C,0x8C,0x8C,0x8C,0x0C,0x00,0x00,0x00,
0x00,0x30,0x30,0x31,0x31,0x31,0x31,0x31,0x31,0x31,0x31,0x31,0x30,0x30,0x00,0x00,

/*-- 文字: 四 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0xFE,0xFE,0x06,0x06,0xFE,0xFE,0x06,0xFE,0xFE,0x06,0x06,0xFE,0xFE,0x00,0x00,
0x00,0x7F,0x7F,0x36,0x37,0x33,0x31,0x30,0x31,0x33,0x33,0x33,0x7F,0x7F,0x00,0x00,

/*-- 文字: 五 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x06,0xC6,0xC6,0xC6,0xC6,0xFE,0xFE,0xC6,0xC6,0xC6,0xC6,0x06,0x06,0x00,0x00,
0x30,0x30,0x30,0x30,0x30,0x3F,0x3F,0x30,0x30,0x30,0x3F,0x3F,0x30,0x30,0x30,0x00,

/*-- 文字: 六 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x60,0x60,0x60,0x60,0x60,0x62,0x6E,0x6C,0x60,0x60,0x60,0x60,0x60,0x60,0x00,
0x00,0x20,0x30,0x1C,0x0E,0x03,0x00,0x00,0x00,0x01,0x03,0x0E,0x38,0x30,0x00,0x00,

/*-- 文字: 七 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x80,0x80,0x80,0x80,0xFE,0xFE,0xC0,0x40,0x60,0x60,0x30,0x30,0x30,0x00,0x00,
0x00,0x01,0x01,0x01,0x00,0x3F,0x7F,0x60,0x60,0x60,0x60,0x60,0x78,0x38,0x00,0x00,

/*-- 文字: 八 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x00,0x00,0xFE,0xFE,0x00,0x00,0x00,0xFE,0xFE,0x00,0x00,0x00,0x00,0x00,
0x20,0x30,0x1C,0x0F,0x03,0x00,0x00,0x00,0x00,0x00,0x03,0x0E,0x18,0x30,0x20,0x00,

/*-- 文字: 九 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x18,0x18,0x18,0x18,0xFF,0xFF,0x18,0x18,0xF8,0xF8,0x00,0x00,0x00,0x00,0x00,
0x20,0x60,0x30,0x18,0x0E,0x07,0x01,0x00,0x00,0x3F,0x7F,0x60,0x60,0x78,0x30,0x00,

/*-- 文字: 十 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xFF,0xFF,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

/*-- 文字: 冬 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x30,0x38,0x9C,0xBF,0xEF,0xCC,0xEC,0xBC,0x9C,0x8C,0x00,0x00,0x00,0x00,
0x03,0x03,0x03,0x03,0x11,0x11,0x36,0x36,0x24,0x6D,0x6D,0x01,0x03,0x03,0x03,0x00,

/*-- 文字: 臘 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0xFE,0xFE,0x26,0xFE,0xFE,0x60,0x6C,0x7F,0x7F,0x6C,0x7F,0x7F,0x6C,0x60,0x00,
0x60,0x7F,0x1F,0x61,0x7F,0x3F,0x00,0x7F,0x7F,0x29,0x29,0x29,0x7F,0x7F,0x00,0x00,

/*-- 文字: 日 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x00,0x00,0xFF,0xFF,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xFF,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0x7F,0x30,0x30,0x30,0x30,0x30,0x30,0x7F,0x7F,0x00,0x00,0x00,

/*-- 文字: 初 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x18,0x9B,0xDF,0xFE,0xB8,0xC0,0x4C,0x0C,0xFC,0xFC,0x0C,0x0C,0xFC,0xFC,0x00,
0x02,0x03,0x01,0x7F,0x7F,0x03,0x66,0x30,0x1C,0x0F,0x63,0x60,0x70,0x3F,0x1F,0x00,

/*-- 文字: ℃ --*/
/*-- 宋體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x00,0x02,0x05,0xE2,0x18,0x04,0x02,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,
0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x40,0x40,0x40,0x40,0x40,0x20,0x18,0x00,0x00,

/*-- 文字: 廿 --*/
/*-- 黑體12; 此字體下對應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
0x30,0x30,0x30,0x30,0xFF,0xFF,0x30,0x30,0x30,0x30,0xFF,0xFF,0x30,0x30,0x30,0x00,
0x00,0x00,0x00,0x00,0x7F,0x7F,0x18,0x18,0x18,0x18,0x7F,0x7F,0x00,0x00,0x00,0x00,
};

const unsigned int table[101] = {0x4693,
0xDA9B, 0x052B, 0x2A5B, 0xDAAE, 0x756A, 0xDDD5, 0x0BA4, 0x5B49, 0xDD53, 0x0A95,
0x452D, 0xD55D, 0x9AB5, 0xDBAA, 0x05D2, 0x6DA5, 0xEE8A, 0x0D4A, 0x4C95, 0xDA9E,
0x0556, 0x2AB5, 0xDADA, 0x66D2, 0xD765, 0x0725, 0x564B, 0xD657, 0x0CAB, 0x355A,
0xD56E, 0xBB69, 0xDF52, 0x0B52, 0x5B25, 0xDD2B, 0x0A4B, 0x54AB, 0xD2BB, 0x05AD,
0x2B6A, 0xDDAA, 0x7D92, 0xDEA5, 0x0D25, 0x5A55, 0xEA4D, 0x04B6, 0x35B5, 0xE6D2,
0x8EC9, 0xDF92, 0x0E92, 0x6D26, 0xE516, 0x0A57, 0x44D6, 0xE365, 0x0755, 0x3749,
0xD74B, 0x7693, 0xDAAB, 0x052B, 0x5A5B, 0xDABA, 0x056A, 0x4B65, 0xDBAA, 0x8B4A,
0xDD95, 0x0A95, 0x652D, 0xD56D, 0x0AB5, 0x55AA, 0xE5C5, 0x0DA5, 0x3D4A, 0xDE4D,
0x7C96, 0xDCCE, 0x0556, 0x5AB5, 0xEAD2, 0x06D2, 0x5EA5, 0xD72A, 0x868B, 0xD697,
0x04AB, 0x655B, 0xE556, 0x0B6A, 0x4752, 0xDB95, 0x0B25, 0x2A8B, 0xDA4F, 0x04AB
};

void delay(unsigned int t)
{
unsigned int i,j;
for(i=0;i{
for(j=0;j<10;j++)
{
asm("NOP");
}
}
}
void data_cvt (unsigned char yy, unsigned char mm, unsigned char dd, unsigned char *moon)
{ unsigned char i,j,leap;
unsigned int days1,days2,x;
days1 = yy * 365 + ((yy+3)>>2) + (mm-1)*30 + dd;
if ((mm >2) && ((yy & 3) == 0) && (yy != 100))
days1 ++;
switch(mm)
{
case 3: days1--;
break;
case 11:
case 12: days1 ++;
case 9:
case 10: days1 ++;
case 8: days1 ++;
case 2:
case 6:
case 7: days1 ++;
}
days1 -=35;
days2=0;
leap=0xFF;
for (i=0; i<=100; i++)
{x=table[i];
for (j=0; j<12; j++)
{
days2 += 29 + (x & 1);
if (days2 >= days1)
break;

if (j==leap)
{
days2 + =16 + (table[i] >> 12);
if (days2 >= days1)
{ j |= 0x80;
x = !(table[i] >> 12);
break;
}
}
x >>= 1;
}
if (days2 >= days1)
break;

leap = x-1;
}
* moon++ = i; //output result
* moon++ = j+1;
* moon = (unsigned char) (29 + (x & 1) -(days2-days1));
}

void delay_T(unsigned char x,unsigned char y)
{
unsigned char z;
do{
z=y;
do{
;
}while(--z);
}while(--x);
}

void init(void)
{
asm("CLRWDT");
ADCON1=0X06;
OPTION=0x81;
TRISA=0B00000000;
TRISB=0B00000000;
TRISC=0B00000000;
TRISD=0B00000000;
TRISE=0B00000000;
PORTA=0x01;
PORTB=0x00;
PORTC=0x00;
PORTD=0x00;
PORTE=0x00;
RBIE=0;
}
unsigned char reset(void)
{
unsigned char outbit;
DQ_LOW(); //主機(jī)拉至低電平
delay_T(2,50); //延時(shí)503us（480us~960us）
DQ_HIGH(); //釋放總線等電阻拉高總線,并保持15~60us
delay_T(2,8); //這里延時(shí)70us
if(DQ==1) outbit=0; //檢測響應(yīng)，沒有接收到應(yīng)答信號，說明復(fù)位不正確，下次繼續(xù)復(fù)位
else outbit=1; //接收到應(yīng)答信號
delay_T(2,60); //延時(shí)430us ，等待總線恢復(fù)高電平
return outbit;
}

void write_byte(unsigned char val)
{
unsigned char i;
unsigned char temp;
for(i=8;i>0;i--)
{
temp=val&0x01; //依次提取每一位
DQ_LOW(); //從高拉至低電平,產(chǎn)生寫時(shí)間隙
NOP();
NOP();
NOP();
NOP();
NOP();
if(temp==1) DQ_HIGH(); //如果寫1,拉高電平
delay_T(2,7); //延時(shí)63us（>45us）
DQ_HIGH(); //拉高電平，以備下次寫數(shù)據(jù)
NOP();
NOP();
val=val>>1; //右移一位
}
}

unsigned char read_byte(void)
{
unsigned char i;
unsigned char value=0; //讀出溫度
static bit j;
for(i=8;i>0;i--)
{
value>>=1; //已經(jīng)讀取的位右移一位
DQ_LOW();
NOP();
NOP();
NOP();
NOP();
NOP();
NOP(); //6us
DQ_HIGH(); //拉至高電平
NOP();
NOP();
NOP();
NOP();
NOP(); //4us
j=DQ; //檢測收到的位
if(j) value|=0x80; //收到1，value最高位置1
delay_T(2,7); //63us
}
return(value);
}
void convert_T(void)
{
if(reset()==1) //ds18b20響應(yīng)了
{
write_byte(0xcc); // 跳過多器件識別
write_byte(0x44); // 啟動溫度轉(zhuǎn)換
}
}
void read_T(void)
{
unsigned char Lsb,Msb;
if(reset()==1)
{
write_byte(0xcc); // 每次讀寫前，跳過多器件識別
write_byte(0xbe); // 讀暫存器
Lsb=read_byte(); // 低字節(jié)
Msb=read_byte(); // 高字節(jié)
temp2=Lsb&0x0f; //取出低字節(jié)的小數(shù)部分的四位
temp1=(Lsb>>4)|(Msb<<4); //將高字節(jié)的低四位與低字節(jié)的高四位和在一塊，即位代表溫度的整數(shù)部分
}
}

void write_com(unsigned char cmdcode)
{

Rs=0; //選擇指令
RW=0; //選擇寫
PORTB=cmdcode;//寫指令碼
asm("NOP");
asm("NOP");
asm("NOP");
Ce=1;//開讀寫
asm("NOP");
asm("NOP");
asm("NOP");
Ce=0;//關(guān)讀寫
}

void write_data(unsigned char Rsspdata)
{
Rs=1;//選擇數(shù)據(jù)
RW=0;//選擇寫
PORTB=Rsspdata;
asm("NOP");
asm("NOP");
asm("NOP");
Ce=1;//開讀寫
asm("NOP");
asm("NOP");
asm("NOP");
Ce=0;//關(guān)讀寫
}

void Clr_Scr(void)
{
unsigned char j,k;
Cs1=1;
Cs2=1;
write_com(Page_Add+0);//定位到第0頁(頁起始位置0-7)
write_com(Col_Add+0);//定位到第0列(列起始位置0-63)
for(k=0;k<8;k++)
{
write_com(Page_Add+k);
for(j=0;j<64;j++) write_data(0x00);//清屏
}
}

void write_x_y(unsigned char x,unsigned char y)
{
y=y&0x7f;//限制列y在0~127
x=x&0x07;//限制行x在0~7
if(y<64)//在左屏
{
Cs1=1;
Cs2=0;//左屏可設(shè)置
write_com(Col_Add+y);//設(shè)置列地址
}
else //在右屏
{
Cs1=0;
Cs2=1;//右屏可設(shè)置
y&=0x3f;//將y在改為0~64的序列(y-64)
write_com(Col_Add+y);//設(shè)置列地址
}
write_com(Page_Add+x);//設(shè)置為當(dāng)前頁
}

void init_lcd(void)
{
delay(250);//延時(shí)48 ms（通過MPLAB IDE測得）
delay(250);
Cs1=1;
Cs2=1; //選擇全屏(CS2=1,CS1=0:左屏，CS2=0,CS1=1:右屏)
delay(250);
write_com(Rssp_Off);//顯示關(guān)
write_com(Page_Add+0);//定位到第0頁指令(頁起始位置0-7)
write_com(Start_Line+0);//定位從DDRAM中的第0行開始往屏幕上顯示
write_com(Col_Add+0);//定位到第0列指令(列起始位置0-63)
write_com(Rssp_On);//顯示開
}

void write_english(unsigned char x,unsigned char y, unsigned char en)
{
unsigned char j=0,i=0;
for(j=0;j<2;j++) //使用兩行顯示一個字符
{
write_x_y(x+j,y);//寫地址
for(i=0;i<8;i++) write_data(shuzi[en*16+8*j+i]);//使用8列顯示一個字符
}
}
void write_chinese(unsigned char x,unsigned char y, unsigned char hz)
{
unsigned char j=0,i=0;
for(j=0;j<2;j++)
{
write_x_y(x+j,y);
for(i=0;i<16;i++) write_data(hanzi[hz*32+16*j+i]);
}
}

void RTInputByte(unsigned char d)
{
unsigned char i;
for(i=0;i<8;i++)
{
if(d&0x01)
T_IO=1;
else
T_IO=0;
d=d>>1;
asm("NOP");
asm("NOP");
asm("NOP");
T_CLK = 1;
asm("NOP");
asm("NOP");
asm("NOP");
asm("NOP");
T_CLK = 0;
asm("NOP");
asm("NOP");
asm("NOP");
}
}

unsigned char RTOutputByte(void)
{
unsigned char i,b;
TRI=1;
for(i=8; i>0; i--)
{
b= b>>1; /*相當(dāng)于匯編中的 RRC */
if(T_IO==1)
b|=0x80;
else
b&=0x7f;
T_CLK = 1;
asm("NOP");
T_CLK = 0;
}
TRI=0;
return b;
}

void W1302(unsigned char ucAddr, unsigned char ucDa)
{
T_RST = 0;
T_CLK = 0;
T_RST = 1;
RTInputByte(ucAddr); /* 地址,命令 */
RTInputByte(ucDa); /* 寫1Byte數(shù)據(jù)*/
T_CLK = 1;
T_RST = 0;
}

unsigned char R1302(unsigned char ucAddr)
{
unsigned char ucData;
T_RST = 0;
T_CLK = 0;
T_RST = 1;
RTInputByte(ucAddr); /* 地址,命令 */
ucData = RTOutputByte(); /* 讀1Byte數(shù)據(jù) */
T_CLK = 1;
T_RST = 0;
return(ucData);
}

void Set1302(unsigned char *pClock)
{
unsigned char i;
unsigned char ucAddr = 0x80;
W1302(0x8e,0x00); /* 控制命令,WP=0,寫操作?*/
for(i =7; i>0; i--)
{
W1302(ucAddr,*pClock); /* 秒 分 時(shí) 日 月 星期 年 */
pClock++;
ucAddr +=2;
}
W1302(0x8e,0x80); /* 控制命令,WP=1,寫保護(hù)?*/
}

void Get1302(unsigned char ucCurtime[])
{
unsigned char i;
unsigned char ucAddr = 0x81;
for (i=0; i<7; i++)
{
ucCurtime[i] = R1302(ucAddr);/*格式為: 秒 分 時(shí) 日 月 星期 年 */
ucAddr += 2;
}
}

void timerinit(void)
{
T1CON=0X01;
TMR1IF=0; //清除TMR1中斷標(biāo)志
TMR1IE=1; //TMR1中斷允許
TMR1H=0x3C; //賦初值，以便TMR1精確地每50ms中斷一次
TMR1L=0xC9;
PIR1=0;
PEIE=1;
GIE=1;
}

void interrupt T1(void)
{
if(TMR1IF==1) //中斷類型判斷
{
TMR1H=0X3C;
TMR1L=0xC0;
TMR1IF=0;
if(++n>19)//n=20時(shí) 為1s計(jì)時(shí)
{
display_time=1;
n=0;
}
if (n==10) tem_en=1; //當(dāng)n=10，啟動溫度顯示，以錯開時(shí)間顯示的時(shí)間
if(tem_en)
if(++ n2 >19)//n2=20時(shí) 為1s計(jì)時(shí)
{
display_tem=1;
n2=0;
}
}
}

void main(void)
{
unsigned char j,t,k;
init();
init_lcd();//初始化屏幕
Clr_Scr();//清屏
//畫屏幕中央分割豎線
for(j=0;j<8;j++)
{write_x_y(j,58);
write_data(0xff);
}
for(j=0;j<8;j++)
{write_x_y(j,59);
write_data(0xff);
}
//結(jié)束畫線

Get1302(timebuf); //獲取系統(tǒng)時(shí)間
if(timebuf[0]==0) //獲取時(shí)間不正確，則時(shí)間初始化
{
timebuf[6]=0x10;//10年
timebuf[4]=0x05;//05月
timebuf[3]=0x05;//01日
timebuf[5]=0x06;//星期6（1-7）
timebuf[2]=0x21;//21點(diǎn)
timebuf[1]=0x46;//46分
timebuf[0]=0x02;//02秒
Set1302(timebuf); //將以上時(shí)間寫入時(shí)鐘芯片
}

timerinit();//定時(shí)器開啟
while(1)//主循環(huán)
{
//以下為溫度處理
if(display_tem)//每1秒刷新一次溫度
{
display_tem=0;//標(biāo)志位歸0
convert_T();
delay(250);
read_T();
if(temp1>80) temp1=0;//溫度范圍規(guī)定
if(temp2>15) temp2=0;
write_english(2,72,temp1/10);
write_english(2,80,temp1%10);
write_english(2,88,11); //.
write_english(2,96,tablexiao[temp2]);
write_chinese(2,104,18); //℃
}
//以下為日期刷新
if(display_time) //每過1 秒，進(jìn)入此函數(shù)刷新時(shí)間
{
display_time=0;//標(biāo)志位歸0
convert_T();
Get1302(timebuf);

//以下為公歷轉(zhuǎn)農(nóng)歷moon[0]記錄年，moon[1]記錄月,moon[2]記錄日
m_temp[0]=(timebuf[6]>>4)*10+timebuf[6]&0x0f;//公歷日期 十六進(jìn)制轉(zhuǎn)十進(jìn)制
m_temp[1]=(timebuf[4]>>4)*10+timebuf[4]&0x0f;
t=(timebuf[3]>>4)*10;
k= timebuf[3]&0x0f;
m_temp[2]=t+k;
data_cvt(m_temp[0],m_temp[1],m_temp[2],& moon[0]);//公歷轉(zhuǎn)農(nóng)歷函數(shù)調(diào)用
//以下為顯示公歷日期
write_english(0,4,2); //20xx年
write_english(0,12,0);
write_english(0,20,(timebuf[6]>>4)&0x0f);
write_english(0,28,timebuf[6]&0x0f);
write_chinese(0,40,0);

write_english(2,0,(timebuf[4]>>4)&0x01);//xx月
write_english(2,8,timebuf[4]&0x0f);
write_chinese(4,0,1);

write_english(3,24,(timebuf[3]>>4)); //xx日
write_english(3,32,timebuf[3]&0x0f);
write_chinese(3,40,16);

write_chinese(6,4,2);//星期x
write_chinese(6,20,3);
write_chinese(6,36,(timebuf[5]&0x07)+2);
//以下為農(nóng)歷日期顯示

write_chinese(4,64,moon[1]+3); //顯示月份，在一到十就顯示相應(yīng)數(shù)字，十一用廿，十二用臘表示
write_chinese(4,80,1);//“月”

//以下為農(nóng)歷日的處理
switch(moon[2]/10)//判斷農(nóng)歷日十位為:初，十，廿，三
{case 0:write_chinese(4,96,17);break;
case 1:write_chinese(4,96,13);break;
case 2:write_chinese(4,96,19);break;
case 3:write_chinese(4,96,6);break;
}
if (moon[2]%10==0)//農(nóng)歷日為整十，則相應(yīng)個位不能顯示為零，而因該顯示為十，比如：三十
write_chinese(4,112,13);
else
write_chinese(4,112,3+moon[2]%10);

write_english(0,64,(timebuf[2]>>4)&0x03); //時(shí)分秒顯示
write_english(0,72,timebuf[2]&0x0f);
write_english(0,80,10); //：
write_english(0,88,(timebuf[1]>>4)&0x0f);
write_english(0,96,timebuf[1]&0x0f);
write_english(0,104,10); //：
write_english(0,112,(timebuf[0]>>4)&0x0f);
write_english(0,120,timebuf[0]&0x0f);
}
}
}