发个12864LCD程序学习一下

//实验目的：熟悉12864LCD的使用
//12864LCD带中文字库
//编程让12864LCD显示公司LOGO和公司名字
//硬件设置：
//关断所有拨码开关。

 #include <p30f6014.h>             //dsPIC30F6014标准头文件

  _FOSC(CSW_FSCM_OFF & XT_PLL4);  //4倍频晶振，Failsafe 时钟关闭
  _FWDT(WDT_OFF);                 //关闭看门狗定时器
  _FBORPOR(PBOR_OFF & MCLR_EN);   //掉电复位禁止，MCLR复位使能。
  _FGS(CODE_PROT_OFF);            //代码保护禁止

#define  di  LATBbits.LATB4       //命令/数据选择              
#define  rw  LATBbits.LATB5       //读/写选择
#define  e   LATBbits.LATB6       //使能
#define  psb LATBbits.LATB2       //8位/4位并口选择
#define  rst LATBbits.LATB7       //复位
         
 unsigned int __attribute__((address(0x900))) temp;  
 unsigned int __attribute__((address(0x902))) temp1;    

const unsigned char TAB1[ ]={         //定义显示图片的数据表
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFE,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X00,0X81,0X00,0X10,0X40,0X00,0X02,0X41,
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0XFF,0XFF,0XC0,0X00,0X00,0X7F,0XFF,0XFF, 0X07,0XE2,0X00,0XFE,0XC0,0X00,0X06,0X01,
0XFF,0XFF,0X00,0X00,0X00,0X1F,0XFF,0XFF, 0X01,0X87,0XE0,0X00,0X80,0X03,0XFF,0XF1,
0XFF,0XFC,0X00,0X00,0X00,0X07,0XFF,0XFF, 0X01,0X04,0X00,0X44,0XFC,0X02,0X04,0X01,

0XFF,0XF0,0X00,0X00,0X00,0X07,0XFF,0XFF, 0X01,0X08,0X00,0X48,0X04,0X02,0X04,0X41,
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0XFF,0XF0,0X3F,0XF0,0X3F,0XC1,0XFF,0XFF, 0X08,0XC1,0X00,0X01,0X00,0X04,0XE7,0X21,
0XFF,0XF0,0X7F,0XE0,0X7F,0XC1,0XFF,0XFF, 0X10,0X82,0X01,0XF9,0XF8,0X08,0X99,0XA1,
0XFF,0XF0,0X7F,0XE0,0X7F,0XC1,0XFF,0XFF, 0X1F,0X86,0X01,0X09,0X00,0X08,0X10,0XE1,
0XFF,0XF0,0XFF,0XC0,0XFF,0XC1,0XFF,0XFF, 0X06,0X04,0X01,0X09,0XF0,0X00,0X00,0X01,

0XFF,0XF0,0XFF,0XC1,0XFF,0XC1,0XFF,0XFF, 0X04,0X08,0X01,0XFA,0X00,0X07,0XFF,0X01,
0XFF,0XF0,0XFF,0X83,0XFF,0XC1,0XFF,0XFF, 0X7F,0XD0,0X03,0X12,0X00,0X06,0X89,0X01,
0XFF,0XF0,0XFF,0X03,0XFF,0XC1,0XFF,0XFF, 0X04,0X10,0X83,0X13,0XF0,0X08,0X91,0X01,
0XFF,0XF0,0XFE,0X07,0XFF,0XC1,0XFF,0XFF, 0X04,0X10,0X83,0XF2,0X00,0X08,0X91,0X01,
0XFF,0XF0,0XFC,0X0F,0XFF,0XC1,0XFF,0XFF, 0X04,0X3F,0X02,0X12,0X08,0X1B,0X93,0X01,
0XFF,0XF0,0XFC,0X0F,0XFF,0XC1,0XFF,0XFF, 0X08,0X00,0X02,0X23,0XF0,0X3F,0XFF,0XC1,
0XFF,0XF0,0XF8,0X1F,0XFF,0XC1,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XF0,0XF0,0X3F,0XFF,0XC1,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,

0XFF,0XF0,0XF0,0X7F,0XFF,0XC1,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XF0,0XE0,0X00,0X1F,0XC1,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XF0,0XE0,0X00,0X0F,0XC1,0XFF,0XFF, 0X00,0X3F,0X80,0X1F,0X00,0X00,0XFF,0X01,
0XFF,0XF0,0XF0,0X00,0X07,0XC1,0XFF,0XFF, 0X00,0XFF,0XE0,0X1F,0X00,0X03,0XFF,0XC1,
0XFF,0XF0,0XF8,0X00,0X07,0XC1,0XFF,0XFF, 0X01,0XFF,0XF0,0X1F,0X00,0X07,0XFF,0XE1,
0XFF,0XF0,0XFC,0X00,0X03,0XC1,0XFF,0XFF, 0X03,0XFF,0XF8,0X1F,0X00,0X07,0XC7,0XE1,
0XFF,0XF0,0XFF,0XFF,0X83,0XC1,0XFF,0XFF, 0X07,0XE0,0XFC,0X1F,0X00,0X07,0XC3,0XE1,
0XFF,0XF0,0XFF,0XFF,0XC1,0XC1,0XFF,0XFF, 0X07,0XC0,0XFC,0X1F,0X00,0X07,0XC0,0X01,


0XFF,0XF0,0XFF,0XFF,0XC1,0XC1,0XFF,0XFF, 0X0F,0XC0,0X7E,0X1F,0X00,0X07,0XFC,0X01,
0XFF,0XF0,0XFF,0XFF,0X83,0XC1,0XFF,0XFF, 0X0F,0XC0,0X7E,0X1F,0X00,0X07,0XFF,0X81,
0XFF,0XF0,0XFF,0XFF,0X03,0XC1,0XFF,0XFF, 0X0F,0XC0,0X7E,0X1F,0X00,0X03,0XFF,0XC1,
0XFF,0XF0,0XFF,0XFE,0X07,0XC1,0XFF,0XFF, 0X0F,0XC0,0X7E,0X1F,0X00,0X00,0XFF,0XE1,
0XFF,0XF0,0XFF,0XFC,0X0F,0XC1,0XFF,0XFF, 0X0F,0XC0,0X7E,0X1F,0X00,0X00,0X1F,0XF1,
0XFF,0XF0,0XFF,0XFC,0X1F,0XC1,0XFF,0XFF, 0X0F,0XC6,0X7E,0X1F,0X00,0X00,0X03,0XF1,
0XFF,0XF0,0XFF,0XF8,0X3F,0XC1,0XFF,0XFF, 0X07,0XC7,0XFC,0X1F,0X00,0X0F,0X81,0XF1,
0XFF,0XF0,0XFF,0XF0,0X7F,0XC1,0XFF,0XFF, 0X07,0XE3,0XFC,0X1F,0X00,0X0F,0XC1,0XF1,

0XFF,0XF0,0X7F,0XE0,0X7F,0XC1,0XFF,0XFF, 0X03,0XFF,0XF8,0X1F,0XFF,0X87,0XE3,0XE1,
0XFF,0XF8,0X7F,0XC0,0XFF,0XC3,0XFF,0XFF, 0X03,0XFF,0XF8,0X1F,0XFF,0X87,0XFF,0XE1,
0XFF,0XF8,0X7F,0XC1,0XFF,0X83,0XFF,0XFF, 0X01,0XFF,0XFC,0X1F,0XFF,0X83,0XFF,0XC1,
0XFF,0XFC,0X3F,0X83,0XFF,0X07,0XFF,0XFF, 0X00,0X7F,0XFF,0X1F,0XFF,0X80,0XFF,0X01,
0XFF,0XFE,0X1F,0X07,0XFE,0X0F,0XFF,0XFF, 0X00,0X00,0X1F,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0X00,0X00,0X00,0X1F,0XFF,0XFF, 0X00,0X00,0X07,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0XFC,0X01,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0XF0,0X01,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,

0XFF,0XFF,0XC0,0X00,0X3F,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0X80,0X00,0X1F,0XFF,0XFF,0XCF, 0X3E,0X83,0XE7,0X3E,0X78,0X21,0X14,0XE1,
0XFF,0XFE,0X00,0X00,0X07,0XFF,0XFC,0X3F, 0X20,0X82,0X09,0X88,0X44,0X51,0X15,0X31,
0XFF,0XFC,0X7C,0X00,0X00,0XFF,0XC0,0X7F, 0X20,0X82,0X08,0X88,0X44,0X51,0X95,0X11,
0XFF,0XFF,0XFF,0XF0,0X00,0X00,0X01,0XFF, 0X20,0X82,0X08,0X08,0X44,0X89,0X95,0X01,
0XFF,0XFF,0XFF,0XFE,0X00,0X00,0X03,0XFF, 0X20,0X82,0X08,0X08,0X44,0X89,0X55,0X01,
0XFF,0XFF,0XFF,0XFF,0X80,0X00,0X07,0XFF, 0X3E,0X83,0XE8,0X08,0X44,0X89,0X55,0X01,
0XFF,0XFF,0XFF,0XFF,0XE0,0X00,0X1F,0XFF, 0X20,0X82,0X08,0X08,0X78,0X89,0X55,0X01,

0XFF,0XFF,0XFF,0XFF,0XFC,0X00,0XFF,0XFF, 0X20,0X82,0X08,0X08,0X48,0X89,0X55,0X01,
0XFF,0XFF,0XFF,0XFF,0XFE,0X03,0XFF,0XFF, 0X20,0X82,0X08,0X08,0X48,0X89,0X35,0X01,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X20,0X82,0X08,0X88,0X44,0X51,0X35,0X11,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X20,0X82,0X09,0X88,0X44,0X51,0X15,0X31,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X3E,0XF3,0XE7,0X08,0X44,0X21,0X14,0XE1,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X01,
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFE,

};
 unsigned int lcd_x;               //X地址         
 unsigned int lcd_y;               //Y地址
//  bit busy;                        //忙标志位
 
void init();                       //系统初始函数
void lcd_init();                   //LCD初始函数 
void clear_p();                    //清屏函数
void han_wr2a();                   //写函数    
void wr_zb();                      //写准备函数
void qushu();                      //查表函数
void send_d(unsigned char x);      //写一字节数据函数
void send_i(unsigned char x);      //写一字节命令函数
void chk_busy();                   //查LCD忙函数
void delay();

//-------------------------------------------
int main(void)
{
       init();                    //系统初始化
       lcd_init();                //LCD初始化
       clear_p();                 //清除显示
       qushu();                   //写数据到LCD显示
        while(1);
}

//-------------------------------------------
void init()
{
  TRISB=0X0000;                     //设置B口为输出   
  TRISD=0X0000;                     //设置D口为输出
}

//-------------------------------------------
void lcd_init()
{
  rst=0;                         //复位LCD
  delay();                        
  rst=1;                         //LCD正常工作
  delay();       
  psb=1;                         //8位并行通信
  send_i(0x30);                  //基本操作指令
  send_i(0x01);                  //关显示  
  send_i(0x06);                  //指定在写入或读取时，光标的移动方向
  send_i(0x0c);                  //开显示，关光标，不闪烁
}

//-------------------------------------------
void wr_zb()
{
  send_i(0x34);                  //扩展操作指令
  send_i(lcd_y);                 //设置Y地址
  send_i(lcd_x);                 //设置X地址
  send_i(0x30);                  //基本操作指令
}

//-------------------------------------------
void clear_p()
{
  send_i(0x1);                   //清除显示
  send_i(0x34);                  //扩展操作指令
  send_i(0x30);                  //基本操作指令
}

//------------------------------------------
void qushu()
{
  unsigned char i,j,k;          //定义临时变量     
  temp=0;                        //查表偏移地址
  lcd_x=0x0080;                    //上半屏X地址80H
  for(i=0;i<2;i++)               //共两屏
     {  
       lcd_y=0x0080;               //每一行的Y地址80H（即顶格显示）
       for(j=0;j<32;j++)       //每半屏共20H行
          {
             wr_zb();            //写准备（设置X地址和Y地址）
             for(k=0;k<16;k++) //每一行16字节（因为顶格写）
                {  
                   temp1=TAB1[temp]; //查表获取显示数字
                   send_d(temp1);    //送LCD显示
                   temp++;       //查表偏移地址+1
                }
             lcd_y++;            //送下一行数据
             send_i(0x0036);       //扩展指令操作：图形显示开
             send_i(0x0030);       //基本指令操作
          }
        lcd_x=0X0088;              //下半屏X地址
     }
}

//-------------------------------------------
void send_d(unsigned char x)
{
   chk_busy();                   //判断LCD是否忙
   di=1;                         //总线上是数据    
   delay();     
   rw=0;                         //写操作
   delay();
   PORTD=x;                      //数据送总线
   e=1;                          //使能
   delay();                       
   e=0;    
   delay();                   
}

//--------------------------------------------
void send_i(unsigned char x)
{
   chk_busy();                   //判断忙信号
   di=0;                         //总线上是命令
   delay();
   rw=0;                         //写操作
   delay();
   PORTD=x;                      //数据送总线
   e=1;                          //使能
   delay();
   e=0;    
   delay();              
}

//-------------------------------------------
void chk_busy()
{  
//   busy=1;                       //先置忙信号     
   TRISD=0Xffff;                   //更改总线方向为输入
   di=0;                         //总线上为命令
   delay();
   rw=1;                         //读操作
   delay();
   while(PORTDbits.RD7)                  
      {
         delay();
         delay();
         e=1;                   
         delay();
         delay();
         e=0;                   
      }
   e=0;                         
   TRISD=0X0000;                  //总线还原为输出   
 }

//-------------------------------------------
void delay()
{
    int m;
    for(m=0;m<10;m++)
       {;}
}