240128 液晶显示器模块显示汉字的程序的问题

240128 液晶显示器模块显示汉字的程序的问题,第1张

你看一下你的液晶屏用的是什么驱动芯片,回头我给你发段驱动代码!!!你也可以根据驱动芯片到网上下载示例代码!

DJNZ R2,PR62

MOV A,R3

MOV R2,A

POP A

INC A

DJNZ R2,PR61

少了写文本区的代码

你的图形去的字模建好后,没有通过文本区来调用

向文本区对应的位置写入80,81,82,83

setb cs

AJMP $

RET

希望以下代码能帮助你

#include "absacc.h"

#include "math.h"

#include "ASCII816.h" //字符点阵库 0x20--0x7F

#include "HZTable.h" //汉字点阵库(自做)

#include "menu.h" //汉字点阵库(自做)

//set following data by user according to LCD

#define ComPort 0xB101

#define DataPort 0xB000

#define GraphAddr 0x0000 //head of graph

//以8*8字符计算,显示屏横向、纵向可以显示的字符个数

//以240*128为例:

#define LineChar 30 //一行16个字符(8*8)

#define ColumnChar 16 //总共16列

//指令,数据 读写状态检查

#define RWCheck() { unsigned char stado{ sta=XBYTE[ComPort] &0x03} while(sta!=0x03)}

//数据自动读 状态检查

#define AutoRCheck() { unsigned char stado{ sta=XBYTE[ComPort] &0x04} while(sta!=0x04)}

//数据自动写 状态检查

#define AutoWCheck() { unsigned char stado{ sta=XBYTE[ComPort] &0x08} while(sta!=0x08)}

/*------输入/出函数,与T6963通讯------------------------------------------------*/

/*------------------------------------------------------------------------*/

// 向数据口发Data

#define OutPortData(dat ) { RWCheck()XBYTE[DataPort]=dat}

//写有 1 个参数命令

#define OutPortCom1(command) { RWCheck()XBYTE[ComPort]= command}

//写有 2 个参数命令

#define OutPortCom2(dat, command) { OutPortData(dat)OutPortCom1(command)}

//写有 3 个参数命令

#define OutPortCom3(data1, data2, command) { OutPortData(data1)OutPortData(data2)OutPortCom1(command)}

unsigned char InPortData() { RWCheck()return(XBYTE[DataPort])}

/*-----------------------------------------------------------------------------------*/

//显示8*16字符

//lin:行(0-7), column: 列(0-15)

//ch:字符代码(标准ASCII码)

void ShowChar(unsigned char lin,unsigned char column,unsigned char ch)

{

unsigned char i

unsigned char dat

unsigned int StartAddr

StartAddr=lin*LineChar +column//定位起始行

for(i=0i<16i++)

{

dat=ASCII816[ ch-0x20 ][i]

OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24)//set address

OutPortCom2( dat, 0xc4)

StartAddr=StartAddr + LineChar

}

}

/*----------------------------------------------------------------------------------------------*/

//显示一个汉字(16*16点阵)

//lin:行(0-7), column: 列(0-7)

//hzcode: 汉字代码(自定义的)

void ShowHZ(unsigned char lin,unsigned char column,unsigned int hzcode)

{

unsigned char i

unsigned int StartAddr

StartAddr=lin*LineChar + column//定位起始行

for(i=0i<16i++)

{

OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24)

OutPortCom2( HZTable[hzcode][i*2], 0xc0)//左半部 地址加一

OutPortCom2( HZTable[hzcode][i*2+1], 0xc4)//右半部 字模地址加一

StartAddr=StartAddr + LineChar

}

}

/////////////////////////////////////////////////////////////////////////////////////////////

//显示一个汉字(16*16点阵)

//lin:行(0-7), column: 列(0-7)

//hzcode: 汉字代码(自定义的)

void ShowHZD(unsigned char lin,unsigned char column,unsigned int hzcode)

{

unsigned char i,j

unsigned int StartAddr

StartAddr=lin*LineChar*16 +column//定位起始行

for(i=0i<35i++)

{

OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24)//定位当前 *** 作位置

for(j=0j<5j++) OutPortCom2( HZTable[hzcode][i*5+j], 0xc0)//显示当前一行

StartAddr=StartAddr + LineChar

}

}

////////////////////////////////////////////////////////////////////////////////////////////

/*-----------------------------------------------------------------------------------*/

//显示一行字符串(汉字,字母混排,一行16字节)

//lin:行

//lineheadaddr: 此行汉字代码区首地址

void ShowLine(unsigned char lin,unsigned char column,unsigned char linehead[])

{

unsigned char i,j

unsigned char byte

unsigned int hzcode

for( i= column,j=0i<column+14 )

{ byte=linehead[j]

if(byte <0x80) //字母

{

ShowChar(lin, i , byte)

i=i+1j=j+1

}

else // byte >= 0x80(汉字)

{

byte=byte &0x7f//最高位置0,即:减去0x8000

hzcode=byte*256 + linehead[j+1]//加低8位,组合成整型数地址

ShowHZ( lin,i,hzcode)

i=i+2j=j+2

}

}

}

/*-----------------------------------------------------------------------------------*/

//显示一屏汉字

//pageheadaddr:此屏汉字代码地址区首地址

void ShowPage(unsigned char lin,unsigned char column1,unsigned char pagehead[][14])

{

unsigned char i

for(i=0i<4 i++)

ShowLine((lin+i*20),column1,pagehead[i])//1行8个汉字,16字节

}

/*----------------------------------------------------------------------------------------------------*/

//反显一个字符

//lin:行(0-7), column: 列(0-15)

void ReverseShowChar(unsigned char lin,unsigned char column)

{

unsigned char i

unsigned char dat

unsigned int StartAddr

StartAddr=lin*LineChar +column//定位起始行

for(i=0i<16i++)

{

OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24)//set address

OutPortCom1( 0xc5 )//数据一次读,地址不变

dat=InPortData()//读入数据

dat=~dat//取反

OutPortCom2( dat, 0xc4)//送回

StartAddr=StartAddr+ LineChar

}

}

/*----------------------------------------------------------------------------------------------------*/

//反显一个汉字

//lin:行(0-7), column: 列(0-15)

void ReverseShowHZ(unsigned char lin,unsigned char column)

{

ReverseShowChar(lin,column)

ReverseShowChar(lin,column+1)

}

/*----------------------------------------------------------------------------------------------------*/

//反显一行汉字

//lin:行(0-7)

void ReverseShowLine(unsigned char lin)

{

unsigned char column

for(column=0column<ColumnCharcolumn++) ReverseShowChar(lin,column)

}

//////////////////////////////////////////////////////////////////////////////////////

void ShowPicture(unsigned char Startline,unsigned char Startcolumn,unsigned char LineWidth,unsigned char ColumnWidth,unsigned int address)

{

unsigned char i,j

unsigned int StartAddr

StartAddr=Startline*LineChar + Startcolumn//定位起始位置

for(i=0i<ColumnWidthi++)

{

OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24)//set address

for(j=0j<LineWidthj++)

{

OutPortCom2( CBYTE[address + i*LineWidth+ j ], 0xc0)

}

StartAddr=StartAddr + LineChar

}

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////

//图形函数,用于描点画图

//---------------------------------------------------------------------------

//在指定位置显示一个点

//如果显示屏超过了256*256,请修改这个函数 PointX,PointY的类型

//Mode 1:显示 0:清除该点

Pixel(unsigned char PointX,unsigned char PointY, bit Mode)

{

unsigned int StartAddr=0

unsigned char dat

StartAddr=PointX*LineChar + PointY/8

dat=0xf0+7-PointY%8

if(Mode) dat=dat 0x08

OutPortCom3( (unsigned char)(StartAddr),(unsigned char)(StartAddr>>8),0x24 )//设置该点所在单元地址

OutPortCom1(dat)

}

//-------------------------------------------------------------------------------

//划线函数

void Line( unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2, bit Mode)

{

unsigned char x,y

double k,b

if( abs(y1-y2) <= abs(x1-x2) ) // k <=1

{

k=(float)(y2-y1) / (float)(x2-x1)

b=y1-k*x1

if( x1 <= x2 )

{

for(x=x1x<=x2x++)

{

y=k*x+b

Pixel(x, y, Mode)

}

}

else

{

for(x=x2x<=x1x++)

{ y=k*x+b

Pixel(x, y, Mode)

}

}

}

else // abs(y1-y2) >abs(x1-x2) K >1

{

k=(float)(x2-x1) / (float)(y2-y1)

b=x1-k*y1

if( y1 <= y2 )

{

for(y=y1y<=y2y++)

{ x=k*y+b

Pixel( x , y,Mode )

}

}

else

{

for(y=y2y<=y1y++)

{ x=k*y+b

Pixel( x , y,Mode )

}

}

}

}

/*---------------------------------------------------------------------------------------------------*/

void ClearScreen()

{

unsigned int i

///////// 清显示 RAM 区 0000h--2000h (8k)

OutPortCom3(0x00,0x00,0x24)//设置指针地址0000H

OutPortCom1(0xb0)//设置自动写状态

for(i=0x00i<0x2000i++) OutPortData(0x00)// data=0

OutPortCom1(0xb2)// 自动写结束

}

//初始化LCD

//需要手动设置

void InitLCD()

{

OutPortCom3( 0x00,0x00,0x42 )//设置图形显示区域首地址GraphAddr

OutPortCom3( 30,0x00,0x43 )//设置图形显示区域宽度 : LineChar

// OutPortCom3( 0x00,0x00,0x42 )//设置图形显示区域首地址GraphAddr

// OutPortCom3( 0x10,0x00,0x43)//设置图形显示区域宽度:10H

OutPortCom1(0xa7)//设置光标形状 cursor size 8x8

OutPortCom1(0x80)//设置显示方式: CGROM方式 文本\图形 "或"

OutPortCom1(0x98)//设置显示开关: 1001 1100 图形

ClearScreen()

}


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