#include "absacc.h"

#include "math.h"

#include "ASCII816.h" //标准ASCII库

#include "HZTable.h" //汉字点阵库(自做)

#include "menu.h" //菜单库(自做)

#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 sta; do{ sta=XBYTE[ComPort] & 0x03; } while(sta!=0x03); }

//数据自动读 状态检查

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

//数据自动写 状态检查

#define AutoWCheck() { unsigned char sta; do{ 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=0;i<16;i++)

{

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=0;i<16;i++)

{

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=0;i<35;i++)

{

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

for(j=0;j<5;j++) 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=0; i< column+14 ; )

{ byte=linehead[j];

if(byte < 0x80) //字母

{

ShowChar(lin, i , byte);

i=i+1;j=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+2;j=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=0;i< 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=0;i<16;i++)

{

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=0; column< ColumnChar; column++) 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=0;i<columnwidth;i++)

{

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

for(j=0;j<linewidth;j++)

{

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=x1;x<=x2;x++)

{

y=k*x+b;

Pixel(x, y, Mode);

}

}

else

{

for(x=x2;x<=x1;x++)

{ 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=y1;y<=y2;y++)

{ x=k*y+b;

Pixel( x , y,Mode );

}

}

else

{

for(y=y2;y<=y1;y++)

{ 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=0x00;i<0x2000;i++) 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();

}