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    #include <STC12C5630AD.h> 

    #include <string.h>

    typedef unsigned char uint8; 

    #define LCM2402_DB0_DB7 P2 

    sbit LCM2402_RS = P1 ^ 5; 

    sbit LCM2402_RW = P1 ^ 6; 

    sbit LCM2402_E = P1 ^ 7; 

    sbit LCM2402_Busy = P2 ^ 7; 

    sbit DQ = P1 ^ 3; 

    sbit clock_clk = P1 ^ 0; 

    sbit clock_dat = P1 ^ 1; 

    sbit clock_Rst = P1 ^ 2; 

    data unsigned int ii; 

    data unsigned char mode = 0; 

    data unsigned char TIME_WW;

    #define CMD_clear 0x01 

    #define CMD_back 0x02 

    #define CMD_dec1 0x04 

    #define CMD_add1 0x06 

    #define CMD_dis_gb1 0x0f 

    #define CMD_dis_gb2 0x0e 

    #define CMD_dis_gb3 0x0c 

    #define CMD_OFF_dis 0x08 

    #define CMD_set82 0x38 

    #define CMD_set81 0x30 

    #define CMD_set42 0x28 

    #define CMD_set41 0x20 

    #define lin_1 0x80 

    #define lin_2 0xc0 

    void MCU_MS (unsigned int a){

    unsigned int i;

    while( --a != 0){

    for(i = 0; i < 600; i++);

    }

    }

    void PWM_init (void){

    CMOD=0x02; 

    CL=0x00;

    CH=0x00;

    CCAPM0=0x42; 

    CCAP0L=0x00; 

    CCAP0H=0x00; 

    CR=1; 

    }

    void PWM0_set (unsigned char a){

    CCAP0L= a; 

    CCAP0H= a; 

    }

    void LCM2402_TestBusy(void){

    LCM2402_DB0_DB7 = 0xff; 

    LCM2402_RS = 0;

    LCM2402_RW = 1;

    LCM2402_E = 1;

    while(LCM2402_Busy); 

    LCM2402_E = 0; 

    }

    void LCM2402_WriteCMD(uint8 LCM2402_command) {

    LCM2402_TestBusy();

    LCM2402_RS = 0;

    LCM2402_RW = 0;

    LCM2402_DB0_DB7 = (LCM2402_command/16)*16;

    LCM2402_E = 1;

    LCM2402_E = 0;

    LCM2402_DB0_DB7 = (LCM2402_command%16)*16;

    LCM2402_E = 1;

    LCM2402_E = 0;

    }

    void LCM2402_WriteData(uint8 LCM2402_data){

    LCM2402_TestBusy();

    LCM2402_RS = 1;

    LCM2402_RW = 0;

    LCM2402_DB0_DB7 = (LCM2402_data/16)*16;

    LCM2402_E = 1;

    LCM2402_E = 0;

    LCM2402_DB0_DB7 = (LCM2402_data%16)*16;

    LCM2402_E = 1;

    LCM2402_E = 0;

    }

    void print(uint8 a,uint8 *str){

    LCM2402_WriteCMD(a | 0x80);

    while(*str != '\0'){

    LCM2402_WriteData(*str++);

    }

    *str = 0;

    }

    void print2(uint8 a,uint8 t){

    LCM2402_WriteCMD(a | 0x80);

    LCM2402_WriteData(t);

    }

    uint8 code Xword[]={

    0x18,0x18,0x07,0x08,0x08,0x08,0x07,0x00, 

    0x00,0x00,0x00,0x00,0xff,0x00,0x00,0x00, 

    0x00,0x00,0x00,0x0e,0x00,0xff,0x00,0x00, 

    0x00,0x00,0xff,0x00,0x0e,0x00,0xff,0x00, 

    0x00,0x00,0xff,0xf5,0xfb,0xf1,0xff,0x00, 

    0x00,0xfe,0x08,0xfe,0x0a,0x0a,0xff,0x00, 

    0x00,0x04,0x00,0xff,0x00,0x0a,0x11,0x00, 

    0x00,0x1f,0x11,0x1f,0x11,0x11,0x1f,0x00, 

    };

    void CgramWrite(void) { 

    uint8 i;

    LCM2402_WriteCMD(0x06); 

    LCM2402_WriteCMD(0x40); 

    for(i=0;i<64;i++) {

    LCM2402_WriteData(Xword[i]);

    }

    }

    void LCM2402_Init(void){

    LCM2402_WriteCMD(CMD_set42); /

    sbit a0 = ACC ^ 0;

    sbit a1 = ACC ^ 1;

    sbit a2 = ACC ^ 2;

    sbit a3 = ACC ^ 3;

    sbit a4 = ACC ^ 4;

    sbit a5 = ACC ^ 5;

    sbit a6 = ACC ^ 6;

    sbit a7 = ACC ^ 7;

    void clock_out(unsigned char dd){

    ACC=dd;

    clock_dat=a0; clock_clk=1; clock_clk=0;

    clock_dat=a1; clock_clk=1; clock_clk=0;

    clock_dat=a2; clock_clk=1; clock_clk=0;

    clock_dat=a3; clock_clk=1; clock_clk=0;

    clock_dat=a4; clock_clk=1; clock_clk=0;

    clock_dat=a5; clock_clk=1; clock_clk=0;

    clock_dat=a6; clock_clk=1; clock_clk=0;

    clock_dat=a7; clock_clk=1; clock_clk=0;

    }

    unsigned char clock_in(void){

    clock_dat=1;

    a0=clock_dat;

    clock_clk=1; clock_clk=0; a1=clock_dat;

    clock_clk=1; clock_clk=0; a2=clock_dat;

    clock_clk=1; clock_clk=0; a3=clock_dat;

    clock_clk=1; clock_clk=0; a4=clock_dat;

    clock_clk=1; clock_clk=0; a5=clock_dat;

    clock_clk=1; clock_clk=0; a6=clock_dat;

    clock_clk=1; clock_clk=0; a7=clock_dat;

    return(ACC);

    }

    void write_clock(unsigned char ord, unsigned char dd){

    clock_clk=0;

    clock_Rst=0;

    clock_Rst=1;

    clock_out(ord);

    clock_out(dd);

    clock_Rst=0;

    clock_clk=1;

    }

    unsigned char read_clock(unsigned char ord){

    unsigned char dd=0;

    clock_clk=0;

    clock_Rst=0;

    clock_Rst=1;

    clock_out(ord);

    dd=clock_in();

    clock_Rst=0;

    clock_clk=1;

    return(dd);

    }

    void Init_1302(void){

    if(read_clock(0xc1) != 0xaa){

    write_clock(0x8e,0x00);

    write_clock(0x8c,0x21);

    write_clock(0x8a,0x07);

    write_clock(0x88,0x09);

    write_clock(0x86,0x015);

    write_clock(0x84,0x00);

    write_clock(0x82,0x00);

    write_clock(0x80,0x00);

    write_clock(0x90,0xa5);

    write_clock(0xc0,0xaa);

    write_clock(0x8e,0x80);

    }

    }

    void Delay(int num){

    while(num--) ;

    }

    void Init_DS18B20(void){

    unsigned char x=0;

    DQ = 1; 

    Delay(35); 

    DQ = 0; 

    Delay(480); 

    DQ = 1; 

    Delay(70);

    x=DQ; 

    Delay(90);

    }

    unsigned char ReadOneChar(void){

    unsigned char i=0;

    unsigned char dat = 0;

    for (i=8;i>0;i--){

    DQ = 0; 

    dat>>=1;

    DQ = 1; 

    if(DQ)

    dat|=0x80;

    Delay(30);

    }

    return(dat);

    }

    void WriteOneChar(unsigned char dat){

    unsigned char i=0;

    for (i=8; i>0; i--){

    DQ = 0;

    DQ = dat&0x01;

    Delay(30);

    DQ = 1;

    dat>>=1;

    }

    }

    unsigned int ReadTemperature(void){

    unsigned char a=0;

    unsigned char b=0;

    unsigned int t=0;

    float tt=0;

    Init_DS18B20();

    WriteOneChar(0xCC); 

    WriteOneChar(0x44); 

    Init_DS18B20();

    WriteOneChar(0xCC); 

    WriteOneChar(0xBE); 

    a=ReadOneChar(); 

    b=ReadOneChar(); 

    t=b;

    t<<=8;

    t=t|a;

    tt=t*0.0625;

    t= tt*10+0.5; 

    return(t);

    }

    void RealTime_Display(void){

    unsigned int i=0,o=0,o2=0;

    unsigned char a=0,b=0,c=0;

    i=ReadTemperature();

    a=i/100;

    print2(0x40,a+0x30);

    b=i/10-a*10;

    print2(0x41,b+0x30);

    print(0x42,".");

    c=i-a*100-b*10;

    print2(0x43,c+0x30); 

    print2(0x44,0x00); 

    print(0x00,"20");

    print2(0x02,(read_clock(0x8d)/16)+0x30);

    print2(0x03,(read_clock(0x8d)%16)+0x30);

    print(0x04,"/"); 

    print2(0x05,(read_clock(0x89)/16)+0x30);

    print2(0x06,(read_clock(0x89)%16)+0x30);

    print(0x07,"/"); 

    print2(0x08,(read_clock(0x87)/16)+0x30);

    print2(0x09,(read_clock(0x87)%16)+0x30);

    print2(0x0b,(read_clock(0x85)/16)+0x30);

    print2(0x0c,(read_clock(0x85)%16)+0x30);

    print(0x0d,":"); 

    print2(0x0e,(read_clock(0x83)/16)+0x30);

    print2(0x0f,(read_clock(0x83)%16)+0x30);

    print(0x10,":"); 

    print2(0x11,(read_clock(0x81)/16)+0x30);

    print2(0x12,(read_clock(0x81)%16)+0x30);

    TIME_WW=read_clock(0x8b)%16;

    print(0x46,"[");

    switch (TIME_WW){

    case 1:print(0x47,"Mon");break;

    case 2:print(0x47,"Tues");break;

    case 3:print(0x47,"Wed");break;

    case 4:print(0x47,"Thur");break;

    case 5:print(0x47,"Fri");break;

    case 6:print(0x47,"Sat");break;

    case 7:print(0x47,"Sun");break;

    default: print(0x47,"Error");break;

    } 

    if(TIME_WW==2||TIME_WW==4)

    print(0x4b,"]");

    else print(0x4a,"]");

    print(0x54,"Lamp brightness:");

    o=(ii/100*10+ii/10%10)*4;

    print2(0x64,o/100+0x30);

    print2(0x65,o/10%10+0x30);

    print2(0x66,o%10+0x30); 

    print(0x67,"%"); 

    print(0x14,"-------b:");

    print(0x20,"%-------");

    print(0x4E,"MODE:");

    print2(0x53,mode+0x30); 

    }

    void main (void){

    LCM2402_Init();

    Init_1302();

    PWM_init(); 

    while(1){ 

    RealTime_Display(); 

    }

    }