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    /***********************************************************************
    工    程：ST7920驅(qū)動(dòng)的12864液晶的3線串行驅(qū)動(dòng)模式
    創(chuàng)建日期：2007年9月16日
    創(chuàng) 建人：朱海峰
    郵    箱：ntzhf100@163.com      QQ:543376422
    引腳定義：RS(CS)=====>PB5
              RW(SID)====>PB6
              EN(SCLK)===>PB7
              PSB為硬件控制，接高電平為8位或4位的并行模式，接低電平為串行模式
              本例程使用3線串行模式
    ************************************************************************/
    #include <iom128v.h>
    #include <macros.h>

    #define uchar unsigned char
    #define uint unsigned int
    #define nop()   NOP()
    #define xtal 8
    #define CS   PB5
    #define SID PB6
    #define SCLK PB7

    #define Set_CS()    DDRB |= (1<<CS);PORTB |= (1<<CS)
    #define Set_SID()   DDRB |= (1<<SID);PORTB |= (1<<SID)
    #define Set_SCLK() DDRB |= (1<<SCLK);PORTB |= (1<<SCLK)

    #define Clr_CS()    DDRB |= (1<<CS);PORTB &=~(1<<CS)
    #define Clr_SID()   DDRB |= (1<<SID);PORTB &=~(1<<SID)
    #define Clr_SCLK() DDRB |= (1<<SCLK);PORTB &=~(1<<SCLK)



    //====================================================================
    //函數(shù)聲明
    void Delay(uint ms);            //延時(shí)子程序
    void W_1byte(uchar RW, uchar RS, uchar W_data);
    void Write_8bits(uint W_bits);
    void LCD_Init(void);
    void Char_Set_XY(uchar x, uchar y, uchar *p);
    void Set_Draw(void);
    //設(shè)定哪一行,從那一個(gè)位置開始到那一個(gè)位置結(jié)束使用反白
    //x=液晶屏上漢字的位置(1~8)；end_x=漢字結(jié)束的地址(1~8)；y=1~4行
    //clear=1:清除反白；clear=0:設(shè)置反白；
    void Set_White(uchar x,uchar y,uchar end_x,uchar clear);
    void Draw_Pic(uchar x, uchar y, const uchar *Draw);
    /*
    /********************************************************************
    ********************************************************************/
    const uchar PIC1[64][16]={
    /*-- 調(diào)入了一幅圖像：C:\Documents and Settings\Administrator\桌面\atmel.bmp --*/
    /*-- 寬度x高度=128x64 --*/

    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,0x00,0x00,
    0x00,0x00,0x00,0x07,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x07,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x3F,0xE7,0xFC,0xFF,0xFF,0xFF,0xE0,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x00,0x3F,0xE7,0xFC,0xFF,0xFF,0xFF,0xF0,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x00,0x7F,0xE7,0xFC,0xFF,0xFF,0xFF,0xF8,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x00,0x7F,0xE7,0xFC,0xFF,0xFF,0xFF,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x00,0xFF,0xE7,0xFC,0xFF,0xBF,0xEF,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x00,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x01,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x03,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x03,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x07,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFC,0x00,0x0F,0xF8,0x00,0x00,0x00,
    0x00,0x07,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x0F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x0F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x1F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x1F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x3F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x3F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0x7F,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0xFF,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xF8,0x00,0x00,0x00,
    0x00,0xFF,0xFF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFC,0x00,0x0F,0xF8,0x00,0x00,0x00,
    0x01,0xFF,0xBF,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFE,0x00,0x0F,0xF8,0x00,0x00,0x00,
    0x01,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xF8,0x00,0x00,
    0x03,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xF8,0x00,0x00,
    0x03,0xFE,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xF0,0x00,0x00,
    0x07,0xFE,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xF0,0x00,0x00,
    0x07,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xE0,0x00,0x00,
    0x0F,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xE0,0x00,0x00,
    0x0F,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xC0,0x00,0x00,
    0x1F,0xFF,0x3F,0xE7,0xFC,0xFF,0xBF,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0xC0,0x00,0x00,
    0x1F,0xFF,0x3F,0xE7,0xFC,0xFF,0x1F,0xE7,0xFC,0xFF,0xFF,0xCF,0xFF,0x80,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3E,0x00,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x63,0x00,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFD,0x00,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0xB6,0x80,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0xBE,0x80,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,0xB6,0x80,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,0xF7,0x00,0x00,
    0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x63,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    };

    //==================================================================

    const uchar PIC2[64][16]={
    /*-- 調(diào)入了一幅圖像：C:\Documents and Settings\Administrator\桌面\AVR.BMP --*/
    /*-- 寬度x高度=128x64 --*/

    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x43,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xBD,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x27,
    0x00,0x00,0x1F,0xFF,0x83,0xFF,0xE0,0x00,0x00,0xFF,0xF8,0x3F,0xFF,0xFF,0x01,0x3C,
    0x00,0x00,0x3F,0xFF,0x81,0xFF,0xF0,0x00,0x01,0xFF,0xF0,0x7F,0xFF,0xFF,0xC1,0x3E,
    0x00,0x00,0x3F,0xFF,0xC1,0xFF,0xF0,0x00,0x01,0xFF,0xF0,0x7F,0xFF,0xFF,0xE0,0xA7,
    0x00,0x00,0x3F,0xFF,0xC1,0xFF,0xF0,0x00,0x03,0xFF,0xE0,0x7F,0xFF,0xFF,0xF0,0xE7,
    0x00,0x00,0x7F,0xFF,0xE0,0xFF,0xF8,0x00,0x03,0xFF,0xE0,0xFF,0xFF,0xFF,0xF8,0x7E,
    0x00,0x00,0x7F,0xFF,0xE0,0xFF,0xF8,0x00,0x03,0xFF,0xE0,0xFF,0xFF,0xFF,0xF8,0x00,
    0x00,0x00,0x7F,0xFF,0xE0,0x7F,0xFC,0x00,0x07,0xFF,0xC1,0xFF,0xFF,0xFF,0xFC,0x00,
    0x00,0x00,0xFF,0xFF,0xF0,0x7F,0xFC,0x00,0x07,0xFF,0xC1,0xFF,0xFF,0xFF,0xFC,0x00,
    0x00,0x00,0xFF,0xFF,0xF0,0x7F,0xFE,0x00,0x0F,0xFF,0x83,0xFF,0xFF,0xFF,0xFE,0x00,
    0x00,0x01,0xFF,0xFF,0xF8,0x3F,0xFE,0x00,0x0F,0xFF,0x83,0xFF,0xE0,0x7F,0xFE,0x00,
    0x00,0x01,0xFF,0xFF,0xF8,0x3F,0xFE,0x00,0x1F,0xFF,0x07,0xFF,0xC0,0x3F,0xFE,0x00,
    0x00,0x03,0xFF,0xFF,0xF8,0x3F,0xFF,0x00,0x1F,0xFF,0x07,0xFF,0xC0,0x3F,0xFE,0x00,
    0x00,0x03,0xFF,0xFF,0xFC,0x1F,0xFF,0x00,0x1F,0xFE,0x07,0xFF,0xC0,0x3F,0xFE,0x00,
    0x00,0x03,0xFF,0xFF,0xFC,0x1F,0xFF,0x80,0x3F,0xFE,0x0F,0xFF,0x80,0x3F,0xFE,0x00,
    0x00,0x07,0xFF,0xFF,0xFE,0x0F,0xFF,0x80,0x3F,0xFE,0x0F,0xFF,0x80,0x3F,0xFE,0x00,
    0x00,0x07,0xFF,0x9F,0xFE,0x0F,0xFF,0x80,0x7F,0xFC,0x1F,0xFF,0x00,0x7F,0xFE,0x00,
    0x00,0x07,0xFF,0x9F,0xFF,0x07,0xFF,0xC0,0x7F,0xFC,0x1F,0xFF,0x00,0xFF,0xFC,0x00,
    0x00,0x0F,0xFF,0x8F,0xFF,0x07,0xFF,0xC0,0x7F,0xF8,0x1F,0xFF,0x01,0xFF,0xFC,0x00,
    0x00,0x0F,0xFF,0x0F,0xFF,0x03,0xFF,0xC0,0xFF,0xF8,0x3F,0xFF,0xFF,0xFF,0xF8,0x00,
    0x00,0x0F,0xFF,0x0F,0xFF,0x83,0xFF,0xE0,0xFF,0xF8,0x3F,0xFF,0xFF,0xFF,0xF8,0x00,
    0x00,0x1F,0xFF,0x07,0xFF,0x83,0xFF,0xE1,0xFF,0xF0,0x7F,0xFF,0xFF,0xFF,0xF0,0x00,
    0x00,0x1F,0xFE,0x07,0xFF,0xC1,0xFF,0xF1,0xFF,0xF0,0x7F,0xFF,0xFF,0xFF,0xE0,0x00,
    0x00,0x3F,0xFE,0x07,0xFF,0xC1,0xFF,0xF3,0xFF,0xE0,0x7F,0xFF,0xFF,0xFF,0xC0,0x00,
    0x00,0x3F,0xFE,0x03,0xFF,0xC0,0xFF,0xFB,0xFF,0xE0,0xFF,0xFF,0xFF,0xFF,0x80,0x00,
    0x00,0x7F,0xFC,0x03,0xFF,0xE0,0xFF,0xFB,0xFF,0xC0,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
    0x00,0x7F,0xFC,0x03,0xFF,0xE0,0x7F,0xFF,0xFF,0xC1,0xFF,0xFF,0xFF,0xFC,0x00,0x00,
    0x00,0x7F,0xF8,0x01,0xFF,0xF0,0x7F,0xFF,0xFF,0x81,0xFF,0xFF,0xFF,0xE0,0x00,0x00,
    0x00,0xFF,0xFF,0xFF,0xFF,0xF8,0x3F,0xFF,0xFF,0x83,0xFF,0xFF,0xFF,0xC0,0x00,0x00,
    0x00,0xFF,0xFF,0xFF,0xFF,0xF8,0x3F,0xFF,0xFF,0x83,0xFF,0xF3,0xFF,0xC0,0x00,0x00,
    0x00,0xFF,0xFF,0xFF,0xFF,0xF8,0x3F,0xFF,0xFF,0x03,0xFF,0xE3,0xFF,0xE0,0x00,0x00,
    0x01,0xFF,0xFF,0xFF,0xFF,0xFC,0x1F,0xFF,0xFF,0x07,0xFF,0xE3,0xFF,0xE0,0x00,0x00,
    0x01,0xFF,0xFF,0xFF,0xFF,0xFC,0x1F,0xFF,0xFE,0x07,0xFF,0xC3,0xFF,0xE0,0x00,0x00,
    0x03,0xFF,0xFF,0xFF,0xFF,0xFE,0x1F,0xFF,0xFE,0x0F,0xFF,0xC1,0xFF,0xF0,0x00,0x00,
    0x03,0xFF,0xFF,0xFF,0xFF,0xFE,0x0F,0xFF,0xFE,0x0F,0xFF,0x81,0xFF,0xF0,0x00,0x00,
    0x03,0xFF,0xFF,0xFF,0xFF,0xFE,0x0F,0xFF,0xFC,0x0F,0xFF,0x81,0xFF,0xF8,0x00,0x00,
    0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0x07,0xFF,0xFC,0x1F,0xFF,0x81,0xFF,0xF8,0x00,0x00,
    0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0x07,0xFF,0xF8,0x3F,0xFF,0x00,0xFF,0xF8,0x00,0x00,
    0x0F,0xFF,0xC0,0x00,0x1F,0xFF,0x83,0xFF,0xF8,0x3F,0xFF,0x00,0xFF,0xF8,0x00,0x00,
    0x0F,0xFF,0x80,0x00,0x0F,0xFF,0x83,0xFF,0xF0,0x3F,0xFE,0x00,0xFF,0xFC,0x00,0x00,
    0x0F,0xFF,0x80,0x00,0x0F,0xFF,0xC3,0xFF,0xF0,0x7F,0xFE,0x00,0x7F,0xFC,0x00,0x00,
    0x1F,0xFF,0x00,0x00,0x0F,0xFF,0xC1,0xFF,0xF0,0x7F,0xFC,0x00,0x7F,0xFC,0x00,0x00,
    0x1F,0xFF,0x00,0x00,0x07,0xFF,0xC1,0xFF,0xE0,0x7F,0xFC,0x00,0x7F,0xFE,0x00,0x00,
    0x1F,0xFF,0x00,0x00,0x07,0xFF,0xE0,0xFF,0xE0,0xFF,0xF8,0x00,0x7F,0xFE,0x00,0x00,
    0x3F,0xFE,0x00,0x00,0x03,0xFF,0xE0,0xFF,0xC0,0xFF,0xF8,0x00,0x3F,0xFE,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    };

    /********************************************************************/

    void main()
    {
        uchar i = 0;
        PORTB = 0XFF;           //
        DDRB = 0XFF;            //PB口全部設(shè)為輸出模式
        Clr_CS();
        Clr_SID();
        Clr_SCLK();
        LCD_Init();
        Delay(50);
        LCD_Init();             //初始化兩邊是關(guān)鍵，否則液晶上電重起將不能顯示
        while(1)
        {
            nop();
            nop();
            Delay(500);
            Char_Set_XY(0,0,"ST7920_3_wires");
            Char_Set_XY(2,1,"反白練習(xí)");
            Char_Set_XY(0,2,"可以單字反白或不");
            Char_Set_XY(3,3,"反白");
            Delay(2000);
            Delay(2000);
            Set_Draw();
            Delay(100);
            Set_White(1,1,7,0);         //第1行，第1個(gè)漢字位置到第8漢字位置反白
            Set_White(3,2,6,0);         //第2行，第3個(gè)漢字位置到第6漢字位置反白
            Set_White(1,3,8,0);         //第3行，第1個(gè)漢字位置到第8漢字位置反白
            Set_White(4,4,5,0);         //第4行，第4個(gè)漢字位置到第5漢字位置反白
            Delay(2000);
            Delay(2000);
            Set_White(4,1,4,1);         //第1行，第4個(gè)漢字位置等取消反白
            Set_White(5,2,5,1);         //第2行，第5個(gè)漢字位置等取消反白
            Set_White(6,3,6,1);         //第3行，第6個(gè)漢字位置等取消反白
            Set_White(4,4,4,1);         //第4行，第4個(gè)漢字位置等取消反白
            Delay(2000);
            Delay(2000);
            Set_White(1,1,1,1);         //
            Set_White(3,2,3,1);         //
            Set_White(2,3,2,1);         //
            Set_White(5,4,5,1);         //
            Delay(2000);
            Delay(2000);
            Set_White(1,1,8,1);         //第1行，第1個(gè)漢字位置到第8漢字位置取消反白
            Set_White(1,2,8,1);         //第2行，第1個(gè)漢字位置到第8漢字位置取消反白
            Set_White(1,3,8,1);         //第3行，第1個(gè)漢字位置到第8漢字位置取消反白
            Set_White(1,4,8,1);         //第4行，第1個(gè)漢字位置到第8漢字位置取消反白

            Delay(2000);
            Delay(2000);
            W_1byte(0,0,0x30);      //基本指令集,，繪圖顯示OFF
            W_1byte(0,0,0x01);      //清除顯示
            W_1byte(0,0,0x01);      //清除顯示
            W_1byte(0,0,0x01);      //清除顯示
            Set_Draw();
            Delay(100);
            Draw_Pic(0,0,*PIC1);    //先替換液晶內(nèi)部RAM中的數(shù)據(jù)，再開顯示
            W_1byte(0,0,0x36);      //8BIT控制界面，擴(kuò)充指令集,，繪圖顯示ON
            Delay(5000);
            W_1byte(0,0,0x34);      //繪圖顯示OFF,主要解決畫圖時(shí)拖尾的現(xiàn)象，即先
                                    //替換好液晶內(nèi)部RAM中的數(shù)據(jù)在開顯示。
            Draw_Pic(0,0,*PIC2);
            W_1byte(0,0,0x36);      //8BIT控制界面，擴(kuò)充指令集，繪圖顯示ON
            Delay(5000);
                                    //畫完圖后要顯示文字要重新設(shè)置成普通模式
            W_1byte(0,0,0x30);      //基本指令集,，繪圖顯示OFF
            W_1byte(0,0,0x01);      //清除顯示

        }
    }
    /******************************************************************/
    void LCD_Init(void)
    {
        uchar cmd;
        cmd=0x30;           //功能設(shè)置 8位數(shù)據(jù)，基本指令
        W_1byte(0,0,cmd);
        Delay(2);
        cmd=0x0C;           //顯示狀態(tài) ON，游標(biāo)OFF，反白OFF
        W_1byte(0,0,cmd);   //寫指令
        Delay(2);
        cmd=0x01;           //清除顯示
        W_1byte(0,0,cmd);   //寫指令
        Delay(2);
        cmd=0x02;           //地址歸位
        W_1byte(0,0,cmd);   //寫指令
        Delay(2);
        cmd=0x80;           //設(shè)置DDRAM地址
        W_1byte(0,0,cmd);   //寫指令
        Delay(2);           //延時(shí)
    }
    /*******************************************************************
    函數(shù) 名：W_1byte
    入口參數(shù)：RW、RS、W_data
    出口參數(shù)：無(wú)
    建立日期：2007年3月3日
    修改日期：
    函數(shù)作用：寫一個(gè)字節(jié)的數(shù)據(jù)到12864液晶，包括指令和數(shù)據(jù)
    說(shuō)    明：RW=1，從液晶讀數(shù)據(jù)到MCU；RW=0，寫一個(gè)數(shù)據(jù)到液晶；
             （一般RW都設(shè)為0，即只向液晶寫數(shù)據(jù)，不讀數(shù)據(jù)）
              RS=1，寫入的是數(shù)據(jù)；RS=0，寫入的是指令；
              一般模式：RW=0，RS=1;寫數(shù)據(jù)
                        RW=0，RS=0;寫指令
    ********************************************************************/
    void W_1byte(uchar RW, uchar RS, uchar W_data)
    {
        uint H_data,L_data,S_ID = 0xf8; //11111RWRS0
        if(RW == 0)
        {
            S_ID &=~ 0x04;
        }
        else                    //if(RW==1)
        {
            S_ID |= 0X04;
        }
        if(RS == 0)
        {
            S_ID &=~ 0x02;
        }
        else                    //if(RS==1)
        {
            S_ID |= 0X02;
        }
        H_data = W_data;
        H_data &= 0xf0;         //屏蔽低4位的數(shù)據(jù)
        L_data = W_data;        //xxxx0000格式
        L_data &= 0x0f;         //屏蔽高4位的數(shù)據(jù)
        L_data <<= 4;         //xxxx0000格式
        Set_CS();
        Write_8bits(S_ID);      //發(fā)送S_ID
        Write_8bits(H_data);    //發(fā)送H_data
        Write_8bits(L_data);    //發(fā)送L_data
        Clr_CS();
    }
    /********************************************************************
    函數(shù) 名：Write_8bits
    入口參數(shù)：W_bits
    出口參數(shù)：無(wú)
    建立日期：2007年3月3日
    修改日期：
    函數(shù)作用：負(fù)責(zé)串行輸出8個(gè)bit位
    說(shuō)    明：
    ********************************************************************/
    void Write_8bits(uint W_bits)
    {
        uint i,Temp_data;
        for(i=0; i<8; i++)
        {
            Temp_data = W_bits;
            Temp_data <<= i;
            if((Temp_data&0x80)==0)
            {
                Clr_SID();
            }
            else
            {
                Set_SID();
            }
            nop();
            Set_SCLK();
            nop();
            nop();
            Clr_SCLK();
            nop();
            Clr_SID();
        }
    }
    /********************************************************************
    函數(shù) 名：Delay
    入口參數(shù)：ms
    出口參數(shù)：無(wú)
    建立日期：2007年3月3日
    修改日期：
    函數(shù)作用：毫秒級(jí)的延時(shí)程序，當(dāng)晶振為12Mhz時(shí)，xtal=12;
    說(shuō)    明：
    ********************************************************************/
    void Delay(uint ms)
    {
        uint i;
        while(ms--)
       {
         for(i=1;i<(uint)(xtal*143-2);i++)
             ;
       }
    }
    //===================================================================*/
    /********************************************************************
    函數(shù) 名：Char_Set_XY
    入口參數(shù)：x,y,*p
    出口參數(shù)：無(wú)
    建立日期：2007年8月26日
    修改日期：
    函數(shù)作用：
    說(shuō)    明：
    ********************************************************************/
    void Char_Set_XY(uchar x, uchar y, uchar *p)
    {
         if(y == 0)
        {
            W_1byte(0,0,(0x80+x));
        }
        if(y == 1)
        {
            W_1byte(0,0,(0x90+x));
        }
        if(y == 2)
        {
            W_1byte(0,0,(0x88+x));
        }
        if(y == 3)
        {
            W_1byte(0,0,(0x98+x));
        }
        while(*p != 0)
        {
            W_1byte(0,1,*p++);
        }
    }
    //===================================================================*/

    /********************************************************************
    函數(shù) 名：Set_Draw(
    入口參數(shù)：無(wú)
    出口參數(shù)：無(wú)
    建立日期：2007年8月26日
    修改日期：
    函數(shù)作用：
    說(shuō)    明：
    ********************************************************************/
    void Set_Draw(void)
    {
        //W_1byte(0,0,0x01);            //清屏
        Delay(20);                  //延時(shí)
        //W_1byte(0,0,0x34);            //8BIT控制界面，擴(kuò)充指令集,，繪圖顯示OFF
        W_1byte(0,0,0x36);
        Delay(20);                  //延時(shí)
    }
    //===================================================================*/
    /********************************************************************
    函數(shù) 名：Draw_Pic 128*64
    入口參數(shù)：x,y,*Draw
    出口參數(shù)：無(wú)
    建立日期：2007年8月26日
    修改日期：
    函數(shù)作用：
    說(shuō)    明：
    ********************************************************************/
    /*************************************************/

    void Draw_Pic(uchar x, uchar y, const uchar *Draw)
    {
        uchar i, j, temp_x, temp_y;     //
        temp_x = x;                     //
        temp_y = y;                     //
        temp_x |= 0x80;                 //
        temp_y |= 0x80;                 //
        for(i=0;i<32;i++ )               //上半屏32行
        {
            W_1byte(0,0,temp_y++);      //設(shè)置繪圖區(qū)的Y地址坐標(biāo)0
            W_1byte(0,0,temp_x);        //設(shè)置繪圖區(qū)的X地址坐標(biāo)0
            for(j=0;j<16;j++)            //
            {
                 W_1byte(0,1,*Draw++); //
            }
        }

        temp_x = 0x88;                  //
        temp_y = 0x80;                  //
        j = 0;                          //
        for(;i<64;i++ )
        {
            W_1byte(0,0,temp_y++);      //設(shè)置繪圖區(qū)的Y地址坐標(biāo)
            W_1byte(0,0,temp_x);        //設(shè)置繪圖區(qū)的X地址坐標(biāo)
            for(j=0;j<16;j++)
            {
                 W_1byte(0,1,*Draw++); //
            }
        }

    }
    /**************************************************/
    /**************************************************/
    void Set_White(uchar x,uchar y,uchar end_x,uchar clear)
    {
        uchar i, j, white_x, white_y,white_end_x,clr_x,clr_y;       //
        white_end_x = (end_x-x+1);
        white_end_x <<= 1;
        if(y==1)
        {
            white_x = (0x80+x-1);
            white_y = 0x80;
            clr_x = 0x80;
            clr_y = 0x80;
        }
        else if(y==2)
        {
            white_x = (0x80+x-1);
            white_y = 0x90;
            clr_x = 0x80;
            clr_y = 0x90;
        }
        else if(y==3)
        {
            white_x = (0x88+x-1);
            white_y = 0x80;
            clr_x = 0x88;
            clr_y = 0x80;
        }
        else if(y==4)
        {
            white_x = (0x88+x-1);
            white_y = 0x90;
            clr_x = 0x88;
            clr_y = 0x90;
        }
        if(clear==0)//要反白時(shí)，先將整行的液晶全部清成不反白（此處行指y）
        {
            for(i=0;i<16;i++ )           //16行
            {
                W_1byte(0,0,clr_y++);   //設(shè)置繪圖區(qū)的Y地址坐標(biāo)0
                W_1byte(0,0,clr_x);     //設(shè)置繪圖區(qū)的X地址坐標(biāo)0
                for(j=0;j<16;j++)        //
                {
                    W_1byte(0,1,0x00); //清成不反白
                    nop();
                }
            }
        }
        nop();
        for(i=0;i<16;i++ )               //16行，因?yàn)槭?6*16漢字
        {
            W_1byte(0,0,white_y++);     //設(shè)置繪圖區(qū)的Y地址坐標(biāo)0
            W_1byte(0,0,white_x);       //設(shè)置繪圖區(qū)的X地址坐標(biāo)0
            for(j=0;j<white_end_x;j++)   //
            {
                 if(clear==1)
                 {
                    W_1byte(0,1,0x00); //取消這一行的8個(gè)點(diǎn)的反白，液晶地址自動(dòng)加1
                                       //（此處行指一個(gè)一個(gè)液晶點(diǎn)所組成的行）
                 }
                 else
                 {
                    W_1byte(0,1,0xff); //反白這一行的8個(gè)點(diǎn)，液晶地址自動(dòng)加1
                                       //（此處行指一個(gè)一個(gè)液晶點(diǎn)所組成的行）
                 }
                 nop();
            }
        }
    }
    /*************************************************/

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LCD12864指定位置反白顯示程序

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