LCD12864显示波形程序

对DSP上LCD12864画图程序进行编写

/********************************** LCD12864曲线显示*******************************************/
/*********作者：王胜文。QQ：95201972  email：nunk@163.com 希望与大家交流2007。08。03**********/


#include
#include
#include
//#include
#define Graphic_Clear 0x01   //檫除点
#define Graphic_Not 0x02     //反相点
#define Graphic_Draw 0x03	 //画点

uchar j=0i=0;
uchar r=32;
/***********************在LCD上任意坐标画点********************************/

void DrawPoint（uchar Xuchar Yuchar Type） 
{ 									//X，Y化点的坐标Type画点的类型：反相点，檫除点，画点
                                                    
   uchar DX = （Y >> 3）;               //计算出属于哪个字节 
   uchar BX = Y - （DX << 3）;           //计算出属于字节哪一位 
   uchar TempData = 0; 
    
    
   if （X > 63） 
   { 
    chip_select=2;
      X -= 64; 
   } 
   else 
   { 
      chip_select=1; 
   } 

   SetPage（DX）;             //设行地址
   SetColumn（X）; 			//设列地址
    
   TempData = ReadData（）;   //读出所画点所在字节的内容
    
   switch （Type）            //对该字节进行相应操作
   { 
       case Graphic_Clear:
          					TempData &= ~（1<         					break; 
      case Graphic_Not:
         					TempData ^= （1 << BX）; 
          					break; 
      case Graphic_Draw: 
          					TempData |= （1 << BX）;  
							break;
	  default:				break;
   } 
    
   SetPage（DX）;            //设置行地址
   SetColumn（X）;  			//设置列地址
   WriteData（TempData）; 	//把修改后的字节送回LCD，达到画点目的
} 

/********插值法画任意两点之间直线的函数，函数中只用加减法，程序运行效率很高**********/

DrawLine（uchar x1uchar y1uchar x2uchar y2）
{                           //x1y1起点坐标；x2y2终点坐标；
    uchar xy; 
    uchar d_xd_y;     	
    uchar err=0;
    uchar temp=0;

    if（y2    d_y=y2-y1;
    if （d_y==0）
        {
        if （x1>x2） {x=x1;x1=x2;x2=x;}
        for （ x=x1;x<=x2;x++ ） DrawPoint（xy1Graphic_Draw）;
        }
    else
        {
    if（x2>=x1）{temp=1;d_x=x2-x1;}else d_x=x1-x2;
    x=x1;y=y1;DrawPoint（xyGraphic_Draw）;
    if（temp&&（d_y<=d_x））
        while（x!=x2）
            {if（err<0）{x=x+1;err=err+（y2-y）;}
            else {x=x+1;y=y+1;err=err+（y2-y）-（x2-x）;}
            DrawPoint（xyGraphic_Draw）;
            }
    else if（temp&&（d_y>d_x））
        while（y!=y2）
            {d_x=x2-x;d_y=y2-y; 
            if（err<0）{x=x+1;y=y+1;err=err+d_y-d_x;}
            else {y=y+1;err=err-d_x;}
            DrawPoint（xyGraphic_Draw）;
            }
    else if（!temp&&（d_y<=d_x））
        while（x!=x2）
            {d_x=x-x2;d_y=y2-y; 
            if（err<0）{x=x-1;err=err+d_y;}
            else {x=x-1;y=y+1;err=err+d_y-d_x;}
            DrawPoint（xyGraphic_Draw）;
            }
    else if（!temp &&（d_y>d_x））
        while（y!=y2）
            {d_x=x-x2;d_y=y2-y; 
            if（err<0）{x=x-1;y=y+1;err=err+d_y-d_x;}
            else {y=y+1;err=err-d_x;}
            DrawPoint（xyGraphic_Draw）;
            }
        }    
}                                  


/******

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       2004  2007-08-15 17:27  5-drawing-line\drawing_line.Uv2

     文件       5200  2007-08-17 16:59  5-drawing-line\drawing_line.c

     文件       1051  2007-08-08 09:47  5-drawing-line\get_keys.h

     文件       3728  2007-08-16 14:10  5-drawing-line\drive_functions.h

     文件       1189  2007-08-17 17:02  5-drawing-line\drawing_line.Opt

     文件          0  2007-08-15 13:47  5-drawing-line\drawing_line_Uv2.Bak

     文件       3923  2007-08-17 17:02  5-drawing-line\drawing_line.plg

    .......      1362  2007-08-17 01:42  5-drawing-line\drawing_line_Opt.Bak

     文件      10379  2007-08-17 17:01  5-drawing-line\drawing_line.LST

     文件      19893  2007-08-17 17:01  5-drawing-line\drawing_line

     文件       1102  2007-08-17 17:02  5-drawing-line\draw.PWI

     文件     102555  2007-08-17 16:48  5-drawing-line\draw.DSN

     文件      22294  2007-08-17 17:01  5-drawing-line\drawing_line.M51

     文件       8366  2007-08-17 17:01  5-drawing-line\drawing_line.hex

     文件      22058  2007-08-17 17:01  5-drawing-line\drawing_line.OBJ

     文件     103053  2007-08-15 14:26  5-drawing-line\Last Loaded draw.DBK

     目录          0  2007-08-15 19:34  5-drawing-line

    .......      2004  2007-08-15 17:27  在LCD12864上显示波形\5-drawing-line\drawing_line_Uv2.Bak

     文件       5200  2007-08-17 16:59  在LCD12864上显示波形\5-drawing-line\drawing_line.c

     文件       1051  2007-08-08 09:47  在LCD12864上显示波形\5-drawing-line\get_keys.h

     文件       3728  2007-08-16 14:10  在LCD12864上显示波形\5-drawing-line\drive_functions.h

    .......      1189  2007-08-17 17:02  在LCD12864上显示波形\5-drawing-line\drawing_line_Opt.Bak

     文件       1133  2009-08-10 11:27  在LCD12864上显示波形\5-drawing-line\drawing_line.plg

     文件       1102  2007-08-17 17:02  在LCD12864上显示波形\5-drawing-line\draw.PWI

     文件     102555  2007-08-17 16:48  在LCD12864上显示波形\5-drawing-line\draw.DSN

     文件      22168  2009-08-10 11:21  在LCD12864上显示波形\5-drawing-line\drawing_line.M51

     文件       8366  2009-08-10 11:21  在LCD12864上显示波形\5-drawing-line\drawing_line.hex

     文件     103053  2007-08-15 14:26  在LCD12864上显示波形\5-drawing-line\Last Loaded draw.DBK

     文件      10370  2009-08-10 11:21  在LCD12864上显示波形\5-drawing-line\drawing_line.LST

     文件      22034  2009-08-10 11:21  在LCD12864上显示波形\5-drawing-line\drawing_line.OBJ

............此处省略9个文件信息