单片机驱动lcd12864液晶绘图功能程序+仿真

ID:70650 · 发表于 2014-12-18 00:56

本帖最后由 jiujiu 于 2014-12-18 01:07 编辑

在连续多天拜读了 51hei论坛多位前辈的程序下。这几天终于把12864绘图功能搞懂了，其中最让我迷惑的就是它XY坐标的确定，后来才知道12864规定先写入垂直Y坐标，再写入水平X坐标，具体的讲解我都写到word文档里面了，先秀图。。

液晶的背光我关掉了，所以看着有点暗，因为白天拍的，加上背光根本就看不清楚，祝大家学习愉快再补几张带背光的。。。。。

刚刚学会了用12864绘图，就随便整理一下，供大家参考。之前使用12864都是使用字库来显示东西，感觉太简单，相信很多人也是这么认为。决定学习绘图功能后，我就开始在网上找文档，找资料，遗憾的是上面都是一笔略过，特别是绘图时X，Y坐标的确定，让我一头雾水。。。。。

上面是我从网上一篇文档上截取的一段，前面说在确定坐标值时要连续写入两字节的数据，但是这里它说错一点——12864在绘图时，要先输入垂直坐标即Y轴坐标，再输入水平X坐标，这是12864本身规定的。下面还要明确一点就是12864屏幕显示与坐标地址的对应关系。。。
0x80 0x8f
X

Y
上半屏和下半屏的地址就是这样子，其中水平X以16位即两个字节为一个地址，垂直Y轴以一位（bit）为一个地址。
上面左半边的就是和12864显示屏上半屏对应的，右半边是和12864显示屏下半屏对应的，这样我们在确定ＸＹ坐标的时候就清楚多了。看一段程序：

在进行上下半屏地址转换的时候，垂直Y坐标都是从0x80开始加，而水平X坐标在上半屏是从0x80加，在下半屏从0x88开始加。我的图像显示处理程序：
//------------在任意位置开始显示图画------------------
void LCD12864_set_tu(uchar X,uchar Y,uchar *tu,uchar wide,uchar high)
{       //Y确定开始行，X确定列（0-7）,tu是点阵字模数据
      uint hang,lie;
      write_12864cmd(extra_cmd);//打开扩展指令集
      write_12864cmd(tu_off);//绘图显示关
      if(wide%8==0) wide=wide/8;
      else wide=wide/8+1;
   for(hang=0;hang<high;hang++)
      {
               if(Y+hang>31)                         //上下屏地址转换
               {
                        write_12864cmd(0x80+Y+hang-32);//先写Y轴坐标
                     write_12864cmd(0x88+X);//再写X轴坐标  ,(0x88-0x8f)
               }                                                       //这里X只需写（0-7）
               else
               {
                        write_12864cmd(0x80+Y+hang);//先写Y轴坐标
                     write_12864cmd(0x80+X);//再写X轴坐标  ,(0x80-0x87)
               }
               for(lie=0;lie<wide;lie++) 根据列宽逐行写入数据
               {                                                                         //宽占几字节，就写几字节
                        write_12864dat(tu[hang*wide+lie]);//每行写入wide个字节数据
               }

   }
      write_12864cmd(tu_on);//绘图显示开
      write_12864cmd(com_cmd);//回到基本指令集
}
上面的XY是自己设置图画显示的起始行和起始列，由于一个水平地址是占两个字节，所以X只能是0到7，所以要根据自己的图画宽度合理设置。
这些明白之后，大家就可以自己试着写程序，显示一些图画了。下面我再讲一下，液晶的取模软件

这个软件我一直是用在给点阵取模的，后来才知道它也可以取图片字模，供液晶显示。只需要点击“打开图像图标”，就可以选择bmp格式的图片打开。但是怎么获得bmp格式的图片呢，我在网上下了这个软件：

装上这个软件之后，打开界面如下

在旁边设置成单色，像素设成128X64,输出格式设成bmp就行了，然后就可以随便把一张jpg图片保存成bmp格式的了。
等把绘图掌握了，大家也可以继续深究一下，写一些画曲线，直方图，椭圆等的绘图函数，就这么多了，祝大家学习愉快
^—^

临走之际秀一张图片....

ID:70650 · 发表于 2014-12-18 01:03

主程序文件：

#include "LCD12864.h"
sbit k1=P3^0;
uchar xuanze;
uchar tab1_zhen[]="甄";
uchar tab1_zi[]="子";
uchar tab1_dan[]="丹";
uchar code tab2[]={
0x00,0x00,0x18,0x30,0x24,0x48,0x02,0x80,
0x07,0xC0,0x07,0xC0,0x1F,0xF0,0x1F,0xF0,
0x13,0x90,0x1F,0xF0,0x1F,0xF0,0x1E,0xF0,
0x1F,0xF0,0x17,0xD0,0x17,0xD0,0x03,0x80
};
uchar code tab3[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x7F,0x80,0x00,0x00,0x00,0x00,0x18,0x0C,0x00,0x00,0x01,0x00,0x00,0x00,0x00,
0x01,0xFF,0x80,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x13,0x10,0x03,0xFE,0x00,
0x03,0xFF,0xC0,0x00,0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x3F,0x30,0x1F,0xFF,0xC0,
0x03,0xFF,0xE0,0x00,0x00,0x00,0x00,0x8C,0x03,0xF0,0x00,0x7F,0xE0,0x7C,0x01,0xE0,
0x03,0xFF,0xF0,0x00,0x00,0x00,0x01,0x36,0x06,0xC0,0x00,0x5F,0xC0,0xFF,0xFC,0x60,
0x01,0xFF,0xF0,0x00,0x00,0x00,0x02,0x1B,0x0F,0x80,0x00,0xFF,0x01,0xFE,0x0F,0x30,
0x00,0xEF,0xF0,0x00,0x00,0x00,0x02,0x6D,0x9F,0x00,0x00,0x3E,0x03,0xFF,0xF1,0x90,
0x00,0xFF,0xF8,0x00,0x00,0x00,0x04,0x36,0xFE,0x00,0x01,0xFF,0x07,0xFF,0xFC,0x90,
0x00,0xEF,0xFF,0xFF,0x80,0x00,0x04,0xDB,0x7E,0x00,0x03,0xFF,0x87,0xFF,0xFC,0xD0,
0x00,0x0F,0xFF,0xFF,0xC0,0x00,0x04,0x6D,0xFC,0x00,0x07,0xFF,0x8F,0xFF,0xFE,0x50,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x36,0xFC,0x10,0x07,0xFF,0x8F,0xFF,0xFE,0x90,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x1B,0xF8,0x10,0x07,0xFF,0xCF,0xFF,0xFE,0x80,
0x00,0x0F,0xFF,0xFF,0xF0,0x00,0x04,0x0F,0xF8,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0x07,0xFF,0xFF,0xF0,0x00,0x04,0x07,0xF0,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0xFF,0xFF,0xFF,0xF8,0x00,0x02,0x03,0xF0,0x20,0x07,0xFF,0xFF,0xFF,0xBA,0x00,
0x00,0xFD,0xFF,0xFF,0xFC,0x00,0x02,0x03,0xF0,0x20,0x03,0xFF,0xFF,0xDF,0xB8,0x00,
0x00,0xC1,0xC0,0x3F,0xFC,0x00,0x01,0x01,0xE0,0x40,0x00,0xFF,0xFF,0xDF,0xB0,0x00,
0x00,0x81,0xC0,0x3F,0xCE,0x00,0x00,0x81,0xE0,0x80,0x00,0x7F,0xFF,0xDF,0xA0,0x00,
0x00,0x81,0x80,0x1D,0xCF,0x00,0x00,0x41,0xE1,0x00,0x00,0x3F,0xFF,0x9B,0x00,0x00,
0x01,0x83,0x80,0x1F,0xC7,0x80,0x00,0x21,0xE2,0x00,0x00,0x1F,0xFD,0xB6,0x00,0x00,
0x01,0xC3,0x00,0x0E,0xE6,0x80,0x00,0x19,0xEC,0x00,0x00,0x07,0xFE,0x20,0x00,0x00,
0x00,0xC3,0x00,0x07,0x67,0x40,0x00,0x07,0xF0,0x00,0x00,0x03,0x3E,0x00,0x00,0x00,
0x00,0x02,0x00,0x03,0xE7,0xA0,0x00,0x00,0x00,0x00,0x00,0x02,0x8E,0x00,0x00,0x00,
0x00,0x06,0x00,0x03,0x83,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x03,0x00,0x00,0x00,
0x00,0x06,0x00,0x07,0x03,0x00,0x77,0x46,0x74,0x24,0x80,0x06,0x04,0x00,0x00,0x00,
0x00,0x1C,0x00,0x06,0x00,0x00,0x55,0x45,0x54,0x57,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x1C,0x00,0x0E,0x00,0x00,0x45,0x45,0x74,0x57,0x80,0x08,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x1C,0x00,0x00,0x55,0x45,0x44,0x74,0x80,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x38,0x00,0x00,0x77,0x76,0x47,0x54,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
}; //128X32
uchar code tab4[]={
0xFF,0xC1,0xF0,0x2E,0x7A,0x3F,0xBF,0xFF,0xFF,0x00,0x70,0xFF,0xF7,0x00,0xF0,0x02,
0x80,0x02,0x03,0xF0,0x1E,0x00,0x20,0x97,0xFE,0x00,0xFC,0x11,0x40,0x01,0x01,0xF0,
0x3E,0x00,0x21,0x83,0xFE,0x70,0xFE,0xB8,0x40,0x00,0x80,0x3E,0x7E,0x00,0x38,0x03,
0xFF,0xF8,0xFE,0xBE,0x41,0x80,0x40,0x0F,0xFC,0x05,0x71,0x93,0xFF,0xF9,0xFC,0x70,
0x08,0xC0,0x10,0x01,0xFC,0x7F,0x7F,0xFF,0xFF,0xFD,0xDC,0x10,0x00,0x00,0x08,0x00,
0x7F,0x2F,0xFF,0xE3,0xFF,0xFF,0xDD,0x01,0x10,0x08,0x10,0x01,0xFF,0x06,0x0F,0xE3,
0xFF,0xFF,0xFE,0x04,0x00,0x60,0x38,0x03,0xE0,0xF0,0x00,0x03,0xFF,0xFF,0xFF,0x80,
0x08,0x22,0x48,0x06,0x00,0x7B,0x05,0x83,0xFC,0x3F,0xFF,0xC0,0x31,0x01,0x88,0x04,
0x00,0x0F,0x0B,0xE3,0xFE,0x1B,0x3F,0xF0,0x7C,0x1F,0xF0,0x18,0x00,0x07,0x83,0xF7,
0xFE,0x1F,0x7F,0xF8,0x03,0xFF,0xFE,0x38,0x00,0x07,0x31,0xF7,0xFF,0x67,0xFF,0xF0,
0x3F,0xFF,0xFC,0x30,0x00,0x03,0x00,0xFF,0xFF,0x17,0xFF,0xF6,0x3F,0xFF,0xFE,0xE0,
0x00,0x01,0x80,0x7F,0xEF,0x77,0xFF,0xFB,0x1F,0xFF,0xFF,0xFF,0xFC,0x00,0x01,0x0F,
0xE7,0xFE,0xFF,0xF7,0x8F,0xE0,0x3F,0xE1,0xFC,0x00,0x01,0x1F,0xE7,0xEE,0x1F,0xFB,
0xDF,0xC0,0x1F,0xE0,0x7F,0x80,0x00,0x07,0xFF,0xFD,0x07,0xFF,0xBF,0xC0,0x0F,0x80,
0x3F,0xC0,0x00,0x03,0xE3,0xFE,0x03,0xFF,0xFF,0xE0,0x0F,0x9C,0x1F,0xF0,0x00,0x03,
0xF7,0xF9,0x02,0xFF,0xFF,0xE0,0x7F,0xFF,0xCF,0xF0,0x00,0x03,0xFF,0xF9,0x02,0x7F,
0xFF,0xFD,0xE7,0xFF,0xFF,0xF0,0x00,0x03,0xCF,0xFF,0x80,0x3F,0xFF,0xFC,0xF3,0x7F,
0xE7,0xF0,0x00,0x03,0xFF,0xFF,0x80,0x07,0xFF,0x38,0x43,0x1F,0xF7,0xF0,0x00,0x07,
0xFF,0xFF,0xC0,0x00,0x3E,0x00,0x03,0x0F,0xF9,0xF0,0x00,0x0F,0xFF,0xFF,0x00,0x00,
0x0F,0x00,0x02,0x07,0xF8,0xE0,0x00,0x1F,0xFF,0xFE,0x00,0x1F,0x1F,0xC0,0x00,0x03,
0xFE,0x40,0x00,0x7F,0xFF,0xFF,0x00,0x47,0x2B,0xC7,0x80,0x01,0xF0,0x00,0x01,0xFF,
0xFF,0xFF,0xF9,0xEB,0xFF,0xC0,0x00,0x00,0xF0,0x00,0x01,0xFF,0xFF,0xFF,0x00,0x7B,
0x0F,0xE7,0x00,0x00,0x3F,0x80,0x01,0xFF,0xFF,0xFD,0x00,0xF6,0x3F,0xFF,0x83,0xC0,
0x1F,0xF0,0x00,0x7F,0xBF,0xFC,0x02,0x3E,0x1F,0xFF,0x03,0x80,0x0F,0xFE,0xC0,0x03,
0xFF,0xFE,0x00,0xBE,0x1F,0x7F,0x1E,0x00,0x01,0x8F,0xF8,0x03,0xFF,0xFF,0x80,0x27,
0x67,0x7F,0x38,0x00,0x00,0x1F,0x3E,0x03,0xC7,0xFF,0xC1,0x71,0xEC,0x3F,0x70,0x00,
0x00,0x9F,0x30,0x03,0xE8,0xFF,0xFE,0xF9,0xFC,0x3F,0xC0,0x00,0x00,0x1F,0x02,0x03,
0xDC,0xFF,0xFF,0xFF,0xE8,0x3F,0x80,0x00,0x00,0x1F,0x02,0x07,0xE0,0xFF,0xFF,0xFF,
0xF8,0x1F,0x00,0x00,0x01,0x1F,0x00,0x07,0xF8,0xFF,0xFF,0xFF,0xF8,0x1F,0x00,0x00,
0x01,0x3F,0x00,0x07,0xEE,0xFF,0xFE,0x3F,0xF8,0x1E,0x00,0x00,0x01,0x3E,0x00,0x03,
0xE0,0x1F,0xFF,0x4F,0xF8,0x3C,0x00,0x00,0x00,0xFE,0x00,0x0F,0xCC,0x0F,0xFF,0xF9,
0xF0,0x38,0x00,0x00,0x00,0x7C,0x04,0xB3,0xDB,0x4F,0xFF,0xF9,0xC0,0x70,0x00,0x00,
0x00,0x00,0x00,0x03,0xF8,0xF3,0xFF,0xFF,0xC0,0x60,0x00,0x00,0x00,0x00,0x01,0x63,
0xE0,0x01,0xFF,0xFF,0xE0,0x60,0x00,0x00,0x00,0x00,0x07,0xFF,0x9F,0xC0,0x3F,0xFF,
0xE0,0x00,0x00,0x00,0x00,0x00,0x06,0x03,0xBF,0xE6,0x1F,0xFF,0x80,0x00,0x00,0x00,
0x00,0x00,0x0E,0x03,0xBF,0xE8,0x1F,0xFF,0xC0,0x00,0x00,0x00,0x00,0x20,0x0F,0x83,
0xFF,0xF9,0x1F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x60,0x2F,0xC3,0xFF,0xF0,0x17,0xFF,
0xE0,0x00,0x00,0x00,0x00,0x70,0x07,0xC3,0xFF,0xFC,0x00,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x70,0x07,0xE3,0xBF,0xFD,0x86,0x3F,0xF0,0x00,0x00,0x00,0x00,0x40,0x0F,0x0F,
0xFF,0xFB,0x8F,0xBF,0xF0,0x00,0x00,0x00,0x00,0x40,0x0F,0x9F,0xFF,0xFE,0x47,0x1F,
0xF0,0x00,0x00,0x00,0x00,0x40,0x1F,0xFF,0xFF,0xFF,0x1E,0x00,0x30,0x00,0x00,0x00,
0x00,0xC0,0x1F,0xFF,0xBF,0xFC,0xEF,0xE0,0x00,0x00,0x00,0x00,0x00,0xC2,0x0F,0xFF,
0x8F,0xFF,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0xC3,0x1F,0xFF,0x83,0xFF,0xFF,0xF8,
0x80,0x00,0x00,0x00,0x00,0x8F,0x1E,0xFF,0x80,0xFF,0xE0,0xFE,0x10,0x00,0x00,0x00,
0x01,0x8E,0x1F,0xFF,0xE0,0x3F,0xF0,0x7F,0xF8,0x00,0x00,0x00,0x01,0x8F,0x1F,0xFF,
0xE0,0x3F,0xEF,0xFF,0xFC,0x00,0x00,0x00,0x01,0x9E,0x3F,0x7F,0xEC,0xFF,0xFF,0xFF,
0xFC,0x00,0x00,0x00,0x01,0xAE,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
}; //96X64
uchar code tab5_1[]="白日依山尽，";
uchar code tab5_2[]="黄河入海流。";
uchar code tab5_3[]="欲穷千里目，";
uchar code tab5_4[]="更上一层楼。";
void keyscan()
{
if(k1==0)
{
delay_1ms(10);
while(k1==0);
xuanze=(xuanze+1)%4;
if(xuanze!=0||xuanze!=3) write_12864cmd(0x01); //清屏，这里的清屏是为了去掉“甄子丹”三个字
delay_1ms(5); //以便下副图的显示不受影响
huitu_clear();
}
}
void main()
{
LCD12864_init();
huitu_clear();
while(1)
{
switch(xuanze)
{
case 0:
set_LCD12864_pos(0,6);//x确定行，y确定起始位置
write_12864str(tab1_zhen);delay_1ms(1);
set_LCD12864_pos(1,6);
write_12864str(tab1_zi); delay_1ms(1);
set_LCD12864_pos(2,6);
write_12864str(tab1_dan);delay_1ms(1);//甄子丹写完
LCD12864_set_tu(0,0,tab4,96,64);
while(xuanze==0) keyscan(); //这里是为了让程序停在这，显示画面不会闪
break;
case 1:
LCD12864_set_tu(0,0,tab2,16,16);
while(xuanze==1) keyscan(); //
break;
case 2:
LCD12864_set_tu(0,0,tab3,128,32);
while(xuanze==2) keyscan(); //
break;
case 3:
set_LCD12864_pos(0,1);
write_12864str(tab5_1);delay_1ms(1);
set_LCD12864_pos(1,1);
write_12864str(tab5_2); delay_1ms(1);
set_LCD12864_pos(2,1);
write_12864str(tab5_3);delay_1ms(1);
set_LCD12864_pos(3,1);
write_12864str(tab5_4);delay_1ms(1);
while(xuanze==3) keyscan(); //
break;
}
}
}

复制代码

ID:70650 · 发表于 2014-12-18 01:04

LCD12864.c文件

#include "LCD12864.h"
#include <intrins.h>
//----------延时--------------
void delay_1ms(uint x)
{
uchar i,j;
for(j=0;j<x;j++)
for(i=0;i<110;i++);
}
//--------------忙检测------------------
void busy_check()
{
uchar i=255;
P0=0xff; //数据口置高
LCD12864_RS=0;LCD12864_RW=1; //读取状态
LCD12864_E=1; //使能LCD
while((i--)&&P0&0x80);//检测数据口最高位状态，为0空闲
LCD12864_E=0;
}
//--------写指令----------
void write_12864cmd(uchar cmd)
{
busy_check();
LCD12864_RS=0;
LCD12864_RW=0;
LCD12864_E=0;
LCD12864_data=cmd;
delay_1ms(5);
LCD12864_E=1;
delay_1ms(5);
LCD12864_E=0;
}
//-------写数据-----------
void write_12864dat(uchar dat)
{
busy_check();
LCD12864_RS=1;
LCD12864_RW=0;
LCD12864_E=0;
LCD12864_data=dat;
delay_1ms(5);
LCD12864_E=1;
delay_1ms(5);
LCD12864_E=0;
}
//------设定显示位置------------
void set_LCD12864_pos(uchar x,uchar y)
{
uchar pos;
if(x==0) x=0x80;
if(x==1) x=0x90;
if(x==2) x=0x88;
if(x==3) x=0x98;
pos=x+y;
write_12864cmd(pos); //地址
}
//------------写字符串----------------
void write_12864str(uchar *s)
{
while(*s)
{
write_12864dat(*s);
s++;
delay_1ms(1);
}
}
//----------------------绘点---------------------
/*void LCD12864_set_dot(uchar X,uchar Y)
{
uchar X_byte,X_bit; //横坐标的哪一字节，哪一位
uchar Y_byte,Y_bit; //纵坐标的哪一字节，哪一位
X_byte=X/16; //算出地址，因为地址是16位的
X_bit=X%16; //算出在哪一个位
Y_byte=Y/32; //确定是在上半屏还是在下半屏
//0——上半屏 1——下半屏
Y_bit=Y%32; //确定在哪一行
write_12864cmd(extra_cmd);//打开扩展指令集
write_12864cmd(tu_off);//绘图关
write_12864cmd(0x80+Y_bit);//先写垂直地址（Y）,这是12864规定的
write_12864cmd(0x80+Y_byte*8+X_byte); //再写水平坐标，Y_byte*8确定了是
// 上半屏还是下半屏
if(X_bit<8) //输入地址时，XY都从0开始
{
write_12864dat(0x80>>(X_bit)); //高字节
write_12864dat(0x00); //低字节
}
else
{
write_12864dat(0x00); //高字节
write_12864dat(0x80>>(X_bit-8)); //低字节
}
write_12864cmd(tu_on);//绘图开
write_12864cmd(com_cmd);//回到基本指令集
} */
//------------------------------在任意位置开始显示图画-----------------------------
void LCD12864_set_tu(uchar X,uchar Y,uchar *tu,uchar wide,uchar high)
{ //Y确定开始行，X确定水平地址（0x80-0x87）,tu是点阵字模数据
uint hang,lie;
write_12864cmd(extra_cmd);//打开扩展指令集
write_12864cmd(tu_off);//绘图显示关
if(wide%8==0) wide=wide/8;
else wide=wide/8+1;
for(hang=0;hang<high;hang++)
{
if(Y+hang>31) //上下屏地址转换
{
write_12864cmd(0x80+Y+hang-32);//先写Y轴坐标
write_12864cmd(0x88+X);//再写X轴坐标 ,(0x88-0x8f)
} //这里X只需写（0-7）
else
{
write_12864cmd(0x80+Y+hang);//先写Y轴坐标
write_12864cmd(0x80+X);//再写X轴坐标 ,(0x80-0x87)
}
for(lie=0;lie<wide;lie++) //根据列宽逐行写入数据
{ //宽占几字节，就写几字节
write_12864dat(tu[hang*wide+lie]);//每行写入wide个字节数据
}
}
write_12864cmd(tu_on);//绘图显示开
write_12864cmd(com_cmd);//回到基本指令集
}
//------------------------------------------------
void huitu_clear()
{
uchar i,j,k;
busy_check();
write_12864cmd(extra_cmd);//打开扩展指令集
write_12864cmd(tu_on);//绘图开
for(i=0;i<2;i++)
{
for(j=0;j<32;j++)
{
busy_check();
write_12864cmd(0x80+j); //写Y坐标
_nop_();
if(i==0) {write_12864cmd(0x80);_nop_();} //写X坐标
else {write_12864cmd(0x88);_nop_();} //下半屏
for(k=0;k<16;k++)
{
busy_check();
write_12864dat(0x00);
_nop_();
}
}
}
write_12864cmd(com_cmd);//回到基本指令集
}
//-----------初始化------------------
void LCD12864_init()
{
LCD12864_PSB=1;// 并口方式
LCD12864_RES=1;
write_12864cmd(com_cmd); //基本指令集
delay_1ms(5);
write_12864cmd(0x0c); //显示开，关光标
delay_1ms(5);
write_12864cmd(0x06); //光标的移动方向
delay_1ms(5);
write_12864cmd(0x01); //清屏
delay_1ms(5);
}

复制代码

ID:70650 · 发表于 2014-12-18 01:05

LCD12864.h文件：

#ifndef _LCD12864_H_
#define _LCD12864_H_
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
//-----端口定义------------
#define LCD12864_data P0
sbit LCD12864_RS =P2^0;
sbit LCD12864_RW =P2^1;
sbit LCD12864_E = P2^2;
sbit LCD12864_PSB=P2^3;
sbit LCD12864_RES=P2^5;
//-------------------------
extern void delay_1ms(uint x);
extern void set_LCD12864_pos(uchar x,uchar y);//x确定行，y确定起始位置
extern void LCD12864_init();
extern void write_12864cmd(uchar cmd);
//extern void write_12864dat(uchar dat);
extern void write_12864str(uchar *s);
//extern void LCD12864_set_dot(uchar X,uchar Y);//Y确定行，X确定列
extern void huitu_clear();
extern void LCD12864_set_tu(uchar X,uchar Y,uchar *tu,uchar wide,uchar high);
//------------------------------------------
#define com_cmd 0x30 // 基本指令
#define extra_cmd 0x34 //扩展指令，关绘图显示
#define tu_on 0x36 // 扩展指令，开绘图显示
#define tu_off 0x34 // 关绘图显示
#endif

复制代码

ID:71262 · 发表于 2014-12-28 14:39

学习了

ID:70172 · 发表于 2014-12-31 22:39

仿真里怎么练12864都没画啊

ID:6540 · 发表于 2015-11-14 11:51

下重复了可惜我的黑币呀

ID:81035 · 发表于 2015-11-15 20:36

下的文件不对呀？

ID:96682 · 发表于 2015-12-3 10:17

还可以,只是图片显示上还是留一手。

ID:113491 · 发表于 2016-5-31 17:24

不错，好东东！~

ID:94489 · 发表于 2016-7-22 10:23

谢谢楼主

ID:142035 · 发表于 2016-10-9 14:21

谢谢楼主的分享

ID:140057 · 发表于 2016-10-24 21:18

感觉被黑了，仿真里没画12864

ID:155502 · 发表于 2016-12-17 21:47

谢谢楼主的分享

ID:74112 · 发表于 2017-2-19 19:32

感觉被黑了，仿真里没画12864 下了才知道

ID:162968 · 发表于 2017-3-3 19:59

谢谢楼主的分享

ID:171746 · 发表于 2017-3-18 19:57

下来学习学习

ID:172742 · 发表于 2017-3-19 15:22

666好厉害

ID:137629 · 发表于 2017-4-10 07:45

谢谢楼主。。。。。。

ID:99779 · 发表于 2017-8-4 16:55

仿真不能用

ID:137883 · 发表于 2017-8-17 18:22

加五分

ID:162491 · 发表于 2017-9-27 09:19

51黑有你更精彩

ID:297280 · 发表于 2018-3-26 15:06

看出来可是

ID:296556 · 发表于 2018-3-26 22:57

很给力学习一下

ID:234782 · 发表于 2018-4-20 13:17

能把12864库元件给共享吗

ID:423490 · 发表于 2018-11-9 11:45

很好用

ID:372237 · 发表于 2019-8-11 10:47

感谢楼主分享

ID:605686 · 发表于 2019-10-16 22:59

楼主好人啊，活两百岁！
write_12864cmd(extra_cmd);//打开扩展指令集
write_12864cmd(tu_off);//绘图关
我正愁没看到extra_cmd，tu_off的声明赋值，原来在头文件里了

学习了

ID:558833 · 发表于 2019-10-17 20:09

讲的好，感谢分享

ID:747335 · 发表于 2020-5-10 22:10

wc86110 发表于 2015-12-3 10:17
还可以,只是图片显示上还是留一手。

我的也是，实物可以，但是仿真不行，哎

ID:795427 · 发表于 2021-11-10 11:40

仿真文件就是只是一个空壳壳，没有电路，难怪没有上贴图。

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