shiyan.c

89c51多级菜单翻页功能12864,给想要的人参考

#include <reg51.h>
#include <intrins.h>

#define GDM12864ADataPort P1 //LCD数据线

sbit DI=P2^2; // 数据\指令 选择
sbit RW=P2^1; // 读\写 选择
sbit EN=P2^0; // 读\写使能
sbit cs1=P2^4; // 片选1
sbit cs2=P2^3; // 片选2
sbit UP=P0^0;//定义UP
sbit DOWN=P0^1;//定义DOWN
sbit TEST=P3^0;//定义DOWN
unsigned char i,j,t;
static int nxx;
int t0,t1,t2,t3,tx,k,k0,k1,k2,k3;
//*--------函数列表-------

//状态检查
void CheckState()
{
   unsigned char dat;
   DI=0;
   RW=1;
   do{
      GDM12864ADataPort=0x00;
      EN=1; 
	  dat=GDM12864ADataPort;
      EN=0;
      dat=0x80 & dat; //仅当第7位为0时才可操作(判别busy信号)
      }while(!(dat==0x00));
     }
/*-----------------------------------------------------------------------------------------------------*/
//向LCD发送命令
//command :命令
SendCommandToLCD(unsigned char command)
{
   CheckState();
   RW=0;
   GDM12864ADataPort=command;
   EN=1; EN=0;
}
/*----------------------------------------------------------------------------------------------------*/
//写显示数据
//dat:显示数据
void WriteByte(unsigned char dat)
{  

   CheckState();
   DI=1; RW=0;
   GDM12864ADataPort=dat;
   EN=1; EN=0;
  }
/*----------------------------------------------------------------------------------------------------*/
//读显示数据
unsigned char ReadByte()
{
   unsigned char dat;
   CheckState();
   DI=1; RW=1;
   GDM12864ADataPort=0xff;
   EN=1; dat=GDM12864ADataPort; EN=0;
   return(dat);
  }
/*----------------------------------------------------------------------------------------------------*/
//设定行地址(页)--X 0-7
void SetLine(unsigned char line)
{
  line=line & 0x07; // 0<=line<=7
  line=line|0xb8; //1011 1xxx
  SendCommandToLCD(line);
}
/*----------------------------------------------------------------------------------------------------*/
//设定列地址--Y 0-63
void SetColumn(unsigned char column)
{
  column=column &0x3f; // 0=<column<=63
  column=column | 0x40; //01xx xxxx
  SendCommandToLCD(column);
}
/*----------------------------------------------------------------------------------------------------*/
//设定显示开始行--XX
void SetStartLine(unsigned char startline) //0--63
{
  startline=startline & 0x07;
  startline=startline|0xc0; //1100 0000
  SendCommandToLCD(startline);
 }
/*----------------------------------------------------------------------------------------------------*/
//开关显示
void SetOnOff(unsigned char onoff)
{
onoff=0x3e | onoff; //0011 111x
SendCommandToLCD(onoff);
}
/*---------------------------------------------------------------------------------------------------*/
//选择屏幕
//screen: 0-全屏,1-左屏,2-右屏
void SelectScreen(unsigned char screen)
{ //cs1: 1--左; cs2: 1--右
   switch(screen)
   { case 0: cs1=0;//全屏
             _nop_(); _nop_(); _nop_(); 
             cs2=0; 
             _nop_(); _nop_(); _nop_(); 
             break; 
     case 1: cs1=0;//左屏
             _nop_(); _nop_(); _nop_(); 
             cs2=1;
             _nop_(); _nop_(); _nop_(); 
             break;
     case 2: cs1=1;//右屏
             _nop_(); _nop_(); _nop_(); 
             cs2=0;
             _nop_(); _nop_(); _nop_(); 
             break;
   }
}
/*---------------------------------------------------------------------------------------------------*/
//延时
GDM12864delay()
   {
    unsigned int i=500;
    while(i--) {;}
    }

/*---------------------------------------------------------------------------------------------------*/
//清屏
//screen: 0-全屏,1-左屏,2-右
void ClearScreen(unsigned char screen)
   { unsigned char i,j;
     SelectScreen(screen);
     for(i=0;i<8;i++){
	        SetLine(i);
              for(j=0;j<128;j++){
                          WriteByte(0x00);
                           }
                     }
					 
    }
/*---------------------------------------------------------------------------------------------------*/
//初始化LCD
void InitLCD() 
{ unsigned char i=250; //延时
while(i--);

SelectScreen(0);
SetOnOff(0); //关显示
//ClearScreen(0);//清屏

SelectScreen(0);
SetOnOff(1); //开显示
SelectScreen(0);
SetStartLine(0); //开始行:0
}
/*----------------------------------------------------------------------------------------------------*/



/*----------------------------------------------------------------------------------------------*/
unsigned char code ASC[]={
/*.--0x2E	*/
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
     0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,

/*'/'--0x2F	  */
     0x00,0x00,0x00,0x80,0xC0,0x60,0x30,0x00,
     0x0C,0x06,0x03,0x01,0x00,0x00,0x00,0x00,

/*0--0x30	*/
	 0xF8,0xFC,0x04,0xC4,0x24,0xFC,0xF8,0x00,
     0x07,0x0F,0x09,0x08,0x08,0x0F,0x07,0x00,

/*1--0x31	*/
	 0x00,0x10,0x18,0xFC,0xFC,0x00,0x00,0x00,
     0x00,0x08,0x08,0x0F,0x0F,0x08,0x08,0x00,

/*2--0x32	*/
	 0x08,0x0C,0x84,0xC4,0x64,0x3C,0x18,0x00,
     0x0E,0x0F,0x09,0x08,0x08,0x0C,0x0C,0x00,

/*3--0x33	*/
	 0x08,0x0C,0x44,0x44,0x44,0xFC,0xB8,0x00,
     0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00,

/*4--0x34	*/
	 0xC0,0xE0,0xB0,0x98,0xFC,0xFC,0x80,0x00,
     0x00,0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,

/*5--0x35	*/
	 0x7C,0x7C,0x44,0x44,0xC4,0xC4,0x84,0x00,
     0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00,

/*6--0x36	*/
	 0xF0,0xF8,0x4C,0x44,0x44,0xC0,0x80,0x00,
     0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,

/*7--0x37	*/
	 0x0C,0x0C,0x04,0x84,0xC4,0x7C,0x3C,0x00,
     0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,0x00,

/*8--0x38	*/
	 0xB8,0xFC,0x44,0x44,0x44,0xFC,0xB8,0x00,
     0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,

/*9--0x39	*/
	 0x38,0x7C,0x44,0x44,0x44,0xFC,0xF8,0x00,
     0x00,0x08,0x08,0x08,0x0C,0x07,0x03,0x00
};
/*----------------------------------------------------------------------------------------------*/
#define  CB6AB  0x0000    /*东  */
#define  CC4CF  CB6AB+32  /*南  */

//从左到右从上到下,纵向8点下高位分粗细体
unsigned char code Hztable[]={
//"  "
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"  "
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"唐"
      0x00,0x00,0x00,0xFE,0xFC,0x84,0xA4,0xA4,
      0xA5,0xFF,0xFE,0xA4,0xE4,0xF6,0xA4,0x80,
      0x00,0x80,0x40,0x3F,0x1F,0xFC,0xFA,0x4A,
      0x4A,0x4F,0x4F,0x4A,0xFB,0xFF,0x10,0x00,
		//0x00,0x00,0xFC,0x44,0x54,0x54,0x54,0x55,
      //0xFE,0x54,0x54,0x54,0xF6,0x44,0x40,0x00,
      //0x40,0x30,0x0F,0x00,0xFD,0x45,0x45,0x45,
      //0x47,0x45,0x45,0x45,0xFD,0x00,0x00,0x00,

//"山", 
      0x00,0x00,0xC0,0x80,0x00,0x00,0x00,0x00,
      0xFE,0xFC,0x00,0x00,0x00,0x00,0xC0,0x80,
      0x00,0x00,0xFF,0x7F,0x20,0x20,0x20,0x20,
      0x3F,0x3F,0x20,0x20,0x20,0x20,0xFF,0x7F,

//"华", 
      0x00,0x40,0x20,0x30,0xFC,0xF7,0x02,0x80,
      0x60,0xFF,0xFE,0x18,0x0E,0xC4,0x00,0x00,
      0x00,0x08,0x08,0x08,0x0B,0x09,0x08,0xFE,
      0xFE,0x09,0x0B,0x0B,0x0B,0x0B,0x0D,0x08,

//"光", 
      0x00,0x00,0x80,0x82,0xBC,0x98,0x80,0xFF,
      0xFE,0x80,0xE0,0xB8,0x9E,0xC4,0x80,0x00,
      0x00,0x80,0x80,0x40,0x60,0x38,0x1F,0x07,
      0x00,0x7F,0xFF,0xC0,0xC0,0xC0,0xF0,0x40,
//"  "
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"  "
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,