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LCD12864指定位置反白显示程序

作者:佚名   来源:本站原创   点击数:…  更新时间：2014年03月31日   【字体：大 中 小】

    /*********************************************************************** 
    工    程：ST7920驱动的12864液晶的3线串行驱动模式 
    创建日期：2007年9月16日 
    创 建 人：朱海峰 
    邮    箱：ntzhf100@163.com      QQ:543376422 
    引脚定义：RS(CS)=====>PB5 
              RW(SID)====>PB6 
              EN(SCLK)===>PB7 
              PSB为硬件控制，接高电平为8位或4位的并行模式，接低电平为串行模式 
              本例程使用3线串行模式 
    ************************************************************************/  
    #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)  
      
      
       
    //====================================================================  
    //函数声明  
    void Delay(uint ms);            //延时子程序  
    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);  
    //设定哪一行,从那一个位置开始到那一个位置结束使用反白  
    //x=液晶屏上汉字的位置(1~8)；end_x=汉字结束的地址(1~8)；y=1~4行  
    //clear=1:清除反白；clear=0:设置反白；  
    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]={  
    /*--  调入了一幅图像：C:\Documents and Settings\Administrator\桌面\atmel.bmp  --*/  
    /*--  宽度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]={  
    /*--  调入了一幅图像：C:\Documents and Settings\Administrator\桌面\AVR.BMP  --*/  
    /*--  宽度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口全部设为输出模式  
        Clr_CS();  
        Clr_SID();  
        Clr_SCLK();  
        LCD_Init();  
        Delay(50);  
        LCD_Init();             //初始化两边是关键，否则液晶上电重起将不能显示  
        while(1)  
        {     
            nop();  
            nop();  
            Delay(500);  
            Char_Set_XY(0,0,"ST7920_3_wires");  
            Char_Set_XY(2,1,"反白练习");  
            Char_Set_XY(0,2,"可以单字反白或不");  
            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个汉字位置到第8汉字位置反白  
            Set_White(3,2,6,0);         //第2行，第3个汉字位置到第6汉字位置反白  
            Set_White(1,3,8,0);         //第3行，第1个汉字位置到第8汉字位置反白  
            Set_White(4,4,5,0);         //第4行，第4个汉字位置到第5汉字位置反白  
            Delay(2000);  
            Delay(2000);  
            Set_White(4,1,4,1);         //第1行，第4个汉字位置等取消反白  
            Set_White(5,2,5,1);         //第2行，第5个汉字位置等取消反白  
            Set_White(6,3,6,1);         //第3行，第6个汉字位置等取消反白  
            Set_White(4,4,4,1);         //第4行，第4个汉字位置等取消反白  
            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个汉字位置到第8汉字位置取消反白  
            Set_White(1,2,8,1);         //第2行，第1个汉字位置到第8汉字位置取消反白  
            Set_White(1,3,8,1);         //第3行，第1个汉字位置到第8汉字位置取消反白  
            Set_White(1,4,8,1);         //第4行，第1个汉字位置到第8汉字位置取消反白  
              
            Delay(2000);  
            Delay(2000);  
            W_1byte(0,0,0x30);      //基本指令集,，绘图显示OFF  
            W_1byte(0,0,0x01);      //清除显示  
            W_1byte(0,0,0x01);      //清除显示  
            W_1byte(0,0,0x01);      //清除显示  
            Set_Draw();  
            Delay(100);  
            Draw_Pic(0,0,*PIC1);    //先替换液晶内部RAM中的数据，再开显示  
            W_1byte(0,0,0x36);      //8BIT控制界面，扩充指令集,，绘图显示ON  
            Delay(5000);  
            W_1byte(0,0,0x34);      //绘图显示OFF,主要解决画图时拖尾的现象，即先  
                                    //替换好液晶内部RAM中的数据在开显示。                                     
            Draw_Pic(0,0,*PIC2);  
            W_1byte(0,0,0x36);      //8BIT控制界面，扩充指令集，绘图显示ON  
            Delay(5000);  
                                    //画完图后要显示文字要重新设置成普通模式     
            W_1byte(0,0,0x30);      //基本指令集,，绘图显示OFF  
            W_1byte(0,0,0x01);      //清除显示  
              
        }  
    }  
    /******************************************************************/  
    void LCD_Init(void)  
    {  
        uchar cmd;  
        cmd=0x30;           //功能设置 8位数据，基本指令  
        W_1byte(0,0,cmd);  
        Delay(2);  
        cmd=0x0C;           //显示状态 ON，游标OFF，反白OFF  
        W_1byte(0,0,cmd);   //写指令  
        Delay(2);  
        cmd=0x01;           //清除显示  
        W_1byte(0,0,cmd);   //写指令  
        Delay(2);  
        cmd=0x02;           //地址归位  
        W_1byte(0,0,cmd);   //写指令  
        Delay(2);  
        cmd=0x80;           //设置DDRAM地址  
        W_1byte(0,0,cmd);   //写指令  
        Delay(2);           //延时  
    }  
    /******************************************************************* 
    函 数 名：W_1byte 
    入口参数：RW、RS、W_data 
    出口参数：无 
    建立日期：2007年3月3日 
    修改日期： 
    函数作用：写一个字节的数据到12864液晶，包括指令和数据 
    说    明：RW=1，从液晶读数据到MCU；RW=0，写一个数据到液晶； 
             （一般RW都设为0，即只向液晶写数据，不读数据） 
              RS=1，写入的是数据；RS=0，写入的是指令； 
              一般模式：RW=0，RS=1;写数据 
                        RW=0，RS=0;写指令 
    ********************************************************************/  
    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位的数据  
        L_data = W_data;        //xxxx0000格式  
        L_data &= 0x0f;         //屏蔽高4位的数据  
        L_data <<= 4;         //xxxx0000格式  
        Set_CS();  
        Write_8bits(S_ID);      //发送S_ID  
        Write_8bits(H_data);    //发送H_data  
        Write_8bits(L_data);    //发送L_data  
        Clr_CS();     
    }  
    /******************************************************************** 
    函 数 名：Write_8bits 
    入口参数：W_bits 
    出口参数：无 
    建立日期：2007年3月3日 
    修改日期： 
    函数作用：负责串行输出8个bit位 
    说    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 数 名：Delay 
    入口参数：ms 
    出口参数：无 
    建立日期：2007年3月3日 
    修改日期： 
    函数作用：毫秒级的延时程序，当晶振为12Mhz时，xtal=12; 
    说    明： 
    ********************************************************************/  
    void Delay(uint ms)   
    {   
        uint i;   
        while(ms--)      
       {   
         for(i=1;i<(uint)(xtal*143-2);i++)   
             ;   
       }     
    }  
    //===================================================================*/  
    /******************************************************************** 
    函 数 名：Char_Set_XY 
    入口参数：x,y,*p 
    出口参数：无 
    建立日期：2007年8月26日 
    修改日期： 
    函数作用： 
    说    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 数 名：Set_Draw( 
    入口参数：无 
    出口参数：无 
    建立日期：2007年8月26日 
    修改日期： 
    函数作用： 
    说    明： 
    ********************************************************************/  
    void Set_Draw(void)  
    {  
        //W_1byte(0,0,0x01);            //清屏  
        Delay(20);                  //延时  
        //W_1byte(0,0,0x34);            //8BIT控制界面，扩充指令集,，绘图显示OFF  
        W_1byte(0,0,0x36);  
        Delay(20);                  //延时  
    }  
    //===================================================================*/  
    /******************************************************************** 
    函 数 名：Draw_Pic  128*64 
    入口参数：x,y,*Draw 
    出口参数：无 
    建立日期：2007年8月26日 
    修改日期： 
    函数作用： 
    说    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++);      //设置绘图区的Y地址坐标0  
            W_1byte(0,0,temp_x);        //设置绘图区的X地址坐标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++);      //设置绘图区的Y地址坐标  
            W_1byte(0,0,temp_x);        //设置绘图区的X地址坐标  
            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)//要反白时，先将整行的液晶全部清成不反白（此处行指y）  
        {  
            for(i=0;i<16;i++ )           //16行  
            {  
                W_1byte(0,0,clr_y++);   //设置绘图区的Y地址坐标0  
                W_1byte(0,0,clr_x);     //设置绘图区的X地址坐标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，因为是16*16汉字  
        {  
            W_1byte(0,0,white_y++);     //设置绘图区的Y地址坐标0  
            W_1byte(0,0,white_x);       //设置绘图区的X地址坐标0  
            for(j=0;j<white_end_x;j++)   //  
            {  
                 if(clear==1)  
                 {  
                    W_1byte(0,1,0x00); //取消这一行的8个点的反白，液晶地址自动加1  
                                       //（此处行指一个一个液晶点所组成的行）  
                 }  
                 else  
                 {  
                    W_1byte(0,1,0xff); //反白这一行的8个点，液晶地址自动加1  
                                       //（此处行指一个一个液晶点所组成的行）  
                 }  
                 nop();  
            }  
        }  
    }  
    /*************************************************/

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