基于PIC16F877A單片機設計的萬年歷程序
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/*----------------------------------------------------*/
//寫顯示數據
//dat:顯示數據
void WriteData(unsigned char dat)
{
CheckState();
DI=1; //寫數據
RW=0;
PORTB=dat;
E=1;
E=0;
}
/*---------------------------------------------------*/
//寫指令
//command:操作LCD的指令
void WriteCommand(unsigned char dat)
{
CheckState();
RW=0; //寫指令
PORTB=dat;
E=1;
E=0;
}
/*---------------------------------------------------*/
//設定頁地址----X:0--7
void SetLine(unsigned char line)
{
line=line0x07; //0
//設定列地址----Y:0--63
void SetColumn(unsigned char column)
{
column=column0x3f; //0
//設定開始行
void SetStartLine(unsigned char startline)
{
startline=startline0x3f; //0
//開關顯示
//1:開顯示 0:關顯示
void SetOnOff(unsigned char state)
{
state=state|0x3e;
WriteCommand(state);
}
/*--------------------------------------------------*/
//選擇屏幕
//screen: 1:左屏 2:右屏
void SlectScreen(unsigned char screen)
{
switch(screen)
{
case 1: CSA=0;
CSB=1;//左屏
break;
case 2: CSA=1;
CSB=0;//右屏
break;
}
}
/*--------------------------------------------------*/
//清屏
//screen: 1:左屏 2:右屏
void ClearScreen(unsigned char screen)
{
unsigned char i,j;
SlectScreen(screen);
for(i=0;i
//顯示一個16X16的漢字
void Show16X16(unsigned char line,unsigned char column,const unsigned char *pt)
{
unsigned char i,column_temp;
column_temp=column;
SlectScreen(1); //選通左屏
SetColumn(column); //設置起始列
SetLine(line); //設置行
for(i=0;i=64) //如果列>=64，則選通右屏
{
SlectScreen(2);
column=column%64; //設置右屏起始列
SetColumn(column);
SetLine(line);
}
WriteData(*pt); //寫數據
*pt++;//
column++;
}
SlectScreen(1);
SetLine(line+1); //設置漢字下半部分顯示頁
column=column_temp;
SetColumn(column);
for(i=0;i=64)
{
SlectScreen(2);
column=column%64;
SetColumn(column);
SetLine(line+1);
}
WriteData(*pt);
*pt++;
column++;
}
}
/*-------------------------------------------------------*/
//顯示一個16X16的漢字帶上劃線
void Show16X16_2(unsigned char line,unsigned char column,const unsigned char *pt)
{
unsigned char i,column_temp;
column_temp=column;
SlectScreen(1); //選通左屏
SetColumn(column); //設置起始列
SetLine(line); //設置行
for(i=0;i=64) //如果列>=64，則選通右屏
{
SlectScreen(2);
column=column%64; //設置右屏起始列
SetColumn(column);
SetLine(line);
}
WriteData(*pt|0x01); //寫數據
*pt++;
column++;
}
SlectScreen(1);
SetLine(line+1); //設置漢字下半部分顯示頁
column=column_temp;
SetColumn(column);
for(i=0;i=64)
{
SlectScreen(2);
column=column%64;
SetColumn(column);
SetLine(line+1);
}
WriteData(*pt);
*pt++;
column++;
}
}
/*-------------------------------------------------------*/
//顯示一個16X16的漢字帶下劃線
void Show16X16_3(unsigned char line,unsigned char column,const unsigned char *pt)
{
unsigned char i,column_temp;
column_temp=column;
SlectScreen(1); //選通左屏
SetColumn(column); //設置起始列
SetLine(line); //設置行
for(i=0;i=64) //如果列>=64，則選通右屏
{
SlectScreen(2);
column=column%64; //設置右屏起始列
SetColumn(column);
SetLine(line);
}
WriteData(*pt); //寫數據
*pt++;
column++;
}
SlectScreen(1);
SetLine(line+1); //設置漢字下半部分顯示頁
column=column_temp;
SetColumn(column);
for(i=0;i=64)
{
SlectScreen(2);
column=column%64;
SetColumn(column);
SetLine(line+1);
}
WriteData(*pt|0x80);
*pt++;
column++;
}
}
/*-------------------------------------------------------*/
//顯示一個8X16的字符
void Show8X16(unsigned char line,unsigned char column,const unsigned char *pt)
{
unsigned char i,column_temp;
column_temp=column;
SlectScreen(1); //選通左屏
SetColumn(column); //設置起始列
SetLine(line); //設置行
for(i=0;i=64) //如果列>=64，則選通右屏
{
SlectScreen(2);
column=column%64; //設置右屏起始列
SetColumn(column);
SetLine(line);
}
WriteData(*pt); //寫數據
*pt++;
column++;
}
SlectScreen(1);
SetLine(line+1); //設置漢字下半部分顯示頁
column=column_temp;
SetColumn(column);
for(i=0;i=64)
{
SlectScreen(2);
column=column%64;
SetColumn(column);
SetLine(line+1);
}
WriteData(*pt);
*pt++;
column++;
}
}
/*-------------------------------------------------------*/
//顯示一個8X16的字符帶上劃線
void Show8X16_2(unsigned char line,unsigned char column,const unsigned char *pt)
{
unsigned char i,column_temp;
column_temp=column;
SlectScreen(1); //選通左屏
SetColumn(column); //設置起始列
SetLine(line); //設置行
for(i=0;i=64) //如果列>=64，則選通右屏
{
SlectScreen(2);
column=column%64; //設置右屏起始列
SetColumn(column);
SetLine(line);
}
WriteData(*pt|0x01); //寫數據
*pt++;
column++;
}
SlectScreen(1);
SetLine(line+1); //設置漢字下半部分顯示頁
colu mn=column_temp;
SetColumn(column);
for(i=0;i=64)
{
SlectScreen(2);
column=column%64;
SetColumn(column);
SetLine(line+1);
}
WriteData(*pt);
*pt++;
column++;
}
}
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