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³ÌÐòÖеÄSystemSetµÈÖ¸Áî´úÂëÔÚ³ÌÐò×îÇ°ÃæÒѾ­¶¨Ò壬ÌùÌ«³¤ÁËŲ»ÈÝÒ׿´¡£ÐèÒªµÄ»°¿ÉÒÔÌù³ö¡£
void LCD_initial()  //Òº¾§³õʼ»¯
{
        unsigned char i;
        TRISF=0x00;                             //Óõ½µÄ¶Ë¿ÚÉèΪÊä³ö״̬
        TRISCbits.TRISC2 = 0;              //A0_dr
        TRISEbits.TRISE1 = 0;        //WR_dr
        TRISEbits.TRISE0 = 0;        //RD_dr
        TRISAbits.TRISA1 = 0;        //RES_dr
        TRISAbits.TRISA0 = 0;        //SEL_dr
        TRISEbits.TRISE5 = 0;              //Ñ¡8080ʱÐò
        PORTEbits.RE5 = 0;
        delay(60);                             //ÉÏ»úÑÓʱһ»á¶ù 60¶ÔÓ¦250us
                 RES_dr = 1;
            delay(60);
            RES_dr = 0;                             //¸´Î»
            delay(60);
            RES_dr = 1;
            delay(60);

        write_cmd( SystemSet );                     //Ó²¼þ³õʼ»¯SystemSet
            for (i=0;i<8;i++)
        {
                write_data( code_ParaSysTable8 );
            }

            write_cmd( Scroll );
            for (i=0;i<10;i++)
            {
                write_data( code_ParaScrTable10 );
            }
            write_cmd( HdotScr );   //µãÎ»ÒÆÁ¿ÉèÖÃ
            write_data( 0x00 );                //²»Òƶ¯
           write_cmd( Ovlay );                //ÏÔʾºÏ³ÉÉèÖÃ
            write_data( 0x00 );                //¶þÖØºÏ³É
         write_cmd(DispOff);              //ÏÔʾ״̬¹Ø±Õ
         write_data(0x57);                 
        screen_clear(0);          //Òº¾§ÇåÆÁ£¬32KB RAM ÇåÁã
        write_cmd(DispOn);    //ÏÔʾ״̬¿ªÆô
         write_data(0x54);      //
}

void screen_clear(uchar part)      //ÇåÆÁ×Óº¯Êý
{
        uint i = 10240;       //10240 = 0x2800  10KB RAM
        write_cmd(CsrW);      //дÈë¹â±êµØÖ·
        write_data(0x00);      //ÏÈдµÍ°Ëλ
         write_data(0x00);      //¸ß°Ëλ
        write_cmd(CsrDirR);   //¹â±êÏòÓÒ·½ÏòÒÆ¶¯
      if(part == 1) write_data(0x00);     //ÏÔÊ¾Çø1
else if(part == 2) write_data(BasePart2);//ÏÔÊ¾Çø2
else if(part == 3) write_data(BasePart3);//ÏÔÊ¾Çø3
else if(part == 4) write_data(BasePart4);//ÏÔÊ¾Çø4
else {i = 32768;   write_data(0x00);}    //ËùÓÐÏÔÊ¾Çø 32KB RAM
        write_cmd(mWrite);    //ÏÔʾÊý¾ÝдÈë
         while(i--)
        {
        write_data(0x00);                   //дÈë0
        }
}

void write_cmd(unsigned char cmdcode)   //дָÁî
{
         CS_dr = 0;
         A0_dr = 1;    //Ö¸Áî
         RD_dr = 1;
         databus = cmdcode;
         WR_dr = 0;
         WR_dr = 1;  
         CS_dr = 1;
         databus =0xff;
}

void write_data(unsigned char Di_drspdata)     //дÊý¾Ý
{
         CS_dr = 0;
         A0_dr = 0;    //Êý¾Ý  
         RD_dr = 1;  
         databus = Di_drspdata;
         WR_dr = 0;
         WR_dr = 1;
         CS_dr = 1;
         databus =0xff;
}
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2Â¥2013-09-27 10:17:17
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yushasha11

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2Â¥: Originally posted by mvpyqz at 2013-09-27 10:17:17
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           write_cmd(CsrW);      //дÈë¹â±êµØÖ·
        write_data(0x00);      //ÏÈдµÍ°Ëλ
        write_data(0x00);      //¸ß°Ëλ
3Â¥2013-09-27 13:53:39
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yushasha11

½ð³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by mvpyqz at 2013-09-27 15:01:19
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