12864翻页显示汉字源程序

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;
//向LCD发送命令
//command :命令
SendCommandToLCD(unsigned char command)
{
CheckState();
RW=0;
GDM12864ADataPort=command;
EN=1; EN=0;
}
/*----------------------------------------------------------------------------------------------------*/
for(j=0;j<128;j++){
WriteByte(0x00);
}
}
}
/*---------------------------------------------------------------------------------------------------*/
{
startline=startline & 0x07;
startline=startline|0xc0; //1100 0000
SendCommandToLCD(startline);
}
/*----------------------------------------------------------------------------------------------------*/
SelectScreen(0);
SetStartLine(0); //开始行:0
}
/*----------------------------------------------------------------------------------------------------*/
/*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,
/*----------------------------------------------------------------------------------------------*/
unsigned char code ASC[]={
/*.--0x2E */
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//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;
}
/*----------------------------------------------------------------------------------------------------*/
/*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,
return(dat);
}
/*----------------------------------------------------------------------------------------------------*/
//设定行地址(页)--X 0-7
void SetLine(unsigned char line)
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,
//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
//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);
//读显示数据
unsigned char ReadByte()
{
unsigned char dat;
CheckState();
DI=1; RW=1;
GDM12864ADataPort=0xff;
EN=1; dat=GDM12864ADataPort; EN=0;
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));
}
/*-----------------------------------------------------------------------------------------------------*/
break;
}
}
/*---------------------------------------------------------------------------------------------------*/
//延时
GDM12864delay()
{
unsigned int i=500;
while(i--) {;}
}
/*---------------------------------------------------------------------------------------------------*/
0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,
/*'/'--0x2F */
0x00,0x00,
0x0C,0x06,0x03,0x01,0x00,0x00,0x00,0x00,
//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;
{
line=line & 0x07; // 0<=line<=7
line=line|0xb8; //1011 1xxx
SendCommandToLCD(line);
}
/*----------------------------------------------------------------------------------------------------*/
//开关显示
void SetOnOff(unsigned char onoff)
{
onoff=0x3e | onoff; //0011 111x
SendCommandToLCD(onoff);
}
/*---------------------------------------------------------------------------------------------------*/
//*--------函数列表-------
//状态检查
void CheckState()
{
unsigned char dat;
DI=0;
RW=1;
do{
GDM12864ADataPort=0x00;
EN=1;
dat=GDM12864ADataPort;
//设定列地址--Y 0-63