單片機(jī)驅(qū)動(dòng)lcd12864液晶繪圖功能程序+仿真

ID:70650 · 發(fā)表于 2014-12-18 00:56

本帖最后由 jiujiu 于 2014-12-18 01:07 編輯

在連續(xù)多天拜讀了 51hei論壇多位前輩的程序下。這幾天終于把12864繪圖功能搞懂了，其中最讓我迷惑的就是它XY坐標(biāo)的確定，后來(lái)才知道12864規(guī)定先寫入垂直Y坐標(biāo)，再寫入水平X坐標(biāo)，具體的講解我都寫到word文檔里面了，先秀圖。。

液晶的背光我關(guān)掉了，所以看著有點(diǎn)暗，因?yàn)榘滋炫牡模由媳彻飧揪涂床磺宄４蠹覍W(xué)習(xí)愉快再補(bǔ)幾張帶背光的。。。。。

剛剛學(xué)會(huì)了用12864繪圖，就隨便整理一下，供大家參考。之前使用12864都是使用字庫(kù)來(lái)顯示東西，感覺太簡(jiǎn)單，相信很多人也是這么認(rèn)為。決定學(xué)習(xí)繪圖功能后，我就開始在網(wǎng)上找文檔，找資料，遺憾的是上面都是一筆略過(guò)，特別是繪圖時(shí)X，Y坐標(biāo)的確定，讓我一頭霧水。。。。。

上面是我從網(wǎng)上一篇文檔上截取的一段，前面說(shuō)在確定坐標(biāo)值時(shí)要連續(xù)寫入兩字節(jié)的數(shù)據(jù)，但是這里它說(shuō)錯(cuò)一點(diǎn)——12864在繪圖時(shí)，要先輸入垂直坐標(biāo)即Y軸坐標(biāo)，再輸入水平X坐標(biāo)，這是12864本身規(guī)定的。下面還要明確一點(diǎn)就是12864屏幕顯示與坐標(biāo)地址的對(duì)應(yīng)關(guān)系。。。
0x80 0x8f
X

Y
上半屏和下半屏的地址就是這樣子，其中水平X以16位即兩個(gè)字節(jié)為一個(gè)地址，垂直Y軸以一位（bit）為一個(gè)地址。
上面左半邊的就是和12864顯示屏上半屏對(duì)應(yīng)的，右半邊是和12864顯示屏下半屏對(duì)應(yīng)的，這樣我們?cè)诖_定ＸＹ坐標(biāo)的時(shí)候就清楚多了。看一段程序：

在進(jìn)行上下半屏地址轉(zhuǎn)換的時(shí)候，垂直Y坐標(biāo)都是從0x80開始加，而水平X坐標(biāo)在上半屏是從0x80加，在下半屏從0x88開始加。我的圖像顯示處理程序：
//------------在任意位置開始顯示圖畫------------------
void LCD12864_set_tu(uchar X,uchar Y,uchar *tu,uchar wide,uchar high)
{       //Y確定開始行，X確定列（0-7）,tu是點(diǎn)陣字模數(shù)據(jù)
      uint hang,lie;
      write_12864cmd(extra_cmd);//打開擴(kuò)展指令集
      write_12864cmd(tu_off);//繪圖顯示關(guān)
      if(wide%8==0) wide=wide/8;
      else wide=wide/8+1;
   for(hang=0;hang<high;hang++)
      {
               if(Y+hang>31)                         //上下屏地址轉(zhuǎn)換
               {
                        write_12864cmd(0x80+Y+hang-32);//先寫Y軸坐標(biāo)
                     write_12864cmd(0x88+X);//再寫X軸坐標(biāo)  ,(0x88-0x8f)
               }                                                       //這里X只需寫（0-7）
               else
               {
                        write_12864cmd(0x80+Y+hang);//先寫Y軸坐標(biāo)
                     write_12864cmd(0x80+X);//再寫X軸坐標(biāo)  ,(0x80-0x87)
               }
               for(lie=0;lie<wide;lie++) 根據(jù)列寬逐行寫入數(shù)據(jù)
               {                                                                         //寬占幾字節(jié)，就寫幾字節(jié)
                        write_12864dat(tu[hang*wide+lie]);//每行寫入wide個(gè)字節(jié)數(shù)據(jù)
               }

   }
      write_12864cmd(tu_on);//繪圖顯示開
      write_12864cmd(com_cmd);//回到基本指令集
}
上面的XY是自己設(shè)置圖畫顯示的起始行和起始列，由于一個(gè)水平地址是占兩個(gè)字節(jié)，所以X只能是0到7，所以要根據(jù)自己的圖畫寬度合理設(shè)置。
這些明白之后，大家就可以自己試著寫程序，顯示一些圖畫了。下面我再講一下，液晶的取模軟件

這個(gè)軟件我一直是用在給點(diǎn)陣取模的，后來(lái)才知道它也可以取圖片字模，供液晶顯示。只需要點(diǎn)擊“打開圖像圖標(biāo)”，就可以選擇bmp格式的圖片打開。但是怎么獲得bmp格式的圖片呢，我在網(wǎng)上下了這個(gè)軟件：

裝上這個(gè)軟件之后，打開界面如下

在旁邊設(shè)置成單色，像素設(shè)成128X64,輸出格式設(shè)成bmp就行了，然后就可以隨便把一張jpg圖片保存成bmp格式的了。
等把繪圖掌握了，大家也可以繼續(xù)深究一下，寫一些畫曲線，直方圖，橢圓等的繪圖函數(shù)，就這么多了，祝大家學(xué)習(xí)愉快
^—^

臨走之際秀一張圖片....

ID:70650 · 發(fā)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[]="白日依山盡，";
uchar code tab5_2[]="黃河入海流。";
uchar code tab5_3[]="欲窮千里目，";
uchar code tab5_4[]="更上一層樓。";
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，這里的清屏是為了去掉“甄子丹”三個(gè)字
delay_1ms(5); //以便下副圖的顯示不受影響
huitu_clear();
}
}
void main()
{
LCD12864_init();
huitu_clear();
while(1)
{
switch(xuanze)
{
case 0:
set_LCD12864_pos(0,6);//x確定行，y確定起始位置
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);//甄子丹寫完
LCD12864_set_tu(0,0,tab4,96,64);
while(xuanze==0) keyscan(); //這里是為了讓程序停在這，顯示畫面不會(huì)閃
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;
}
}
}

復(fù)制代碼

ID:70650 · 發(fā)表于 2014-12-18 01:04

LCD12864.c文件

#include "LCD12864.h"
#include <intrins.h>
//----------延時(shí)--------------
void delay_1ms(uint x)
{
uchar i,j;
for(j=0;j<x;j++)
for(i=0;i<110;i++);
}
//--------------忙檢測(cè)------------------
void busy_check()
{
uchar i=255;
P0=0xff; //數(shù)據(jù)口置高
LCD12864_RS=0;LCD12864_RW=1; //讀取狀態(tài)
LCD12864_E=1; //使能LCD
while((i--)&&P0&0x80);//檢測(cè)數(shù)據(jù)口最高位狀態(tài)，為0空閑
LCD12864_E=0;
}
//--------寫指令----------
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;
}
//-------寫數(shù)據(jù)-----------
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;
}
//------設(shè)定顯示位置------------
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
}
//------------寫字符串----------------
void write_12864str(uchar *s)
{
while(*s)
{
write_12864dat(*s);
s++;
delay_1ms(1);
}
}
//----------------------繪點(diǎn)---------------------
/*void LCD12864_set_dot(uchar X,uchar Y)
{
uchar X_byte,X_bit; //橫坐標(biāo)的哪一字節(jié)，哪一位
uchar Y_byte,Y_bit; //縱坐標(biāo)的哪一字節(jié)，哪一位
X_byte=X/16; //算出地址，因?yàn)榈刂肥?6位的
X_bit=X%16; //算出在哪一個(gè)位
Y_byte=Y/32; //確定是在上半屏還是在下半屏
//0——上半屏 1——下半屏
Y_bit=Y%32; //確定在哪一行
write_12864cmd(extra_cmd);//打開擴(kuò)展指令集
write_12864cmd(tu_off);//繪圖關(guān)
write_12864cmd(0x80+Y_bit);//先寫垂直地址（Y）,這是12864規(guī)定的
write_12864cmd(0x80+Y_byte*8+X_byte); //再寫水平坐標(biāo)，Y_byte*8確定了是
// 上半屏還是下半屏
if(X_bit<8) //輸入地址時(shí)，XY都從0開始
{
write_12864dat(0x80>>(X_bit)); //高字節(jié)
write_12864dat(0x00); //低字節(jié)
}
else
{
write_12864dat(0x00); //高字節(jié)
write_12864dat(0x80>>(X_bit-8)); //低字節(jié)
}
write_12864cmd(tu_on);//繪圖開
write_12864cmd(com_cmd);//回到基本指令集
} */
//------------------------------在任意位置開始顯示圖畫-----------------------------
void LCD12864_set_tu(uchar X,uchar Y,uchar *tu,uchar wide,uchar high)
{ //Y確定開始行，X確定水平地址（0x80-0x87）,tu是點(diǎn)陣字模數(shù)據(jù)
uint hang,lie;
write_12864cmd(extra_cmd);//打開擴(kuò)展指令集
write_12864cmd(tu_off);//繪圖顯示關(guān)
if(wide%8==0) wide=wide/8;
else wide=wide/8+1;
for(hang=0;hang<high;hang++)
{
if(Y+hang>31) //上下屏地址轉(zhuǎn)換
{
write_12864cmd(0x80+Y+hang-32);//先寫Y軸坐標(biāo)
write_12864cmd(0x88+X);//再寫X軸坐標(biāo) ,(0x88-0x8f)
} //這里X只需寫（0-7）
else
{
write_12864cmd(0x80+Y+hang);//先寫Y軸坐標(biāo)
write_12864cmd(0x80+X);//再寫X軸坐標(biāo) ,(0x80-0x87)
}
for(lie=0;lie<wide;lie++) //根據(jù)列寬逐行寫入數(shù)據(jù)
{ //寬占幾字節(jié)，就寫幾字節(jié)
write_12864dat(tu[hang*wide+lie]);//每行寫入wide個(gè)字節(jié)數(shù)據(jù)
}
}
write_12864cmd(tu_on);//繪圖顯示開
write_12864cmd(com_cmd);//回到基本指令集
}
//------------------------------------------------
void huitu_clear()
{
uchar i,j,k;
busy_check();
write_12864cmd(extra_cmd);//打開擴(kuò)展指令集
write_12864cmd(tu_on);//繪圖開
for(i=0;i<2;i++)
{
for(j=0;j<32;j++)
{
busy_check();
write_12864cmd(0x80+j); //寫Y坐標(biāo)
_nop_();
if(i==0) {write_12864cmd(0x80);_nop_();} //寫X坐標(biāo)
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); //顯示開，關(guān)光標(biāo)
delay_1ms(5);
write_12864cmd(0x06); //光標(biāo)的移動(dòng)方向
delay_1ms(5);
write_12864cmd(0x01); //清屏
delay_1ms(5);
}

復(fù)制代碼

ID:70650 · 發(fā)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
//-----端口定義------------
#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確定行，y確定起始位置
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確定行，X確定列
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 //擴(kuò)展指令，關(guān)繪圖顯示
#define tu_on 0x36 // 擴(kuò)展指令，開繪圖顯示
#define tu_off 0x34 // 關(guān)繪圖顯示
#endif

復(fù)制代碼

ID:71262 · 發(fā)表于 2014-12-28 14:39

學(xué)習(xí)了

ID:70172 · 發(fā)表于 2014-12-31 22:39

仿真里怎么練12864都沒畫啊

ID:6540 · 發(fā)表于 2015-11-14 11:51

下重復(fù)了可惜我的黑幣呀

ID:81035 · 發(fā)表于 2015-11-15 20:36

下的文件不對(duì)呀？

ID:96682 · 發(fā)表于 2015-12-3 10:17

還可以,只是圖片顯示上還是留一手。

ID:113491 · 發(fā)表于 2016-5-31 17:24

不錯(cuò)，好東東！~

ID:94489 · 發(fā)表于 2016-7-22 10:23

謝謝樓主

ID:142035 · 發(fā)表于 2016-10-9 14:21

謝謝樓主的分享

ID:140057 · 發(fā)表于 2016-10-24 21:18

感覺被黑了，仿真里沒畫12864

ID:155502 · 發(fā)表于 2016-12-17 21:47

謝謝樓主的分享

ID:74112 · 發(fā)表于 2017-2-19 19:32

感覺被黑了，仿真里沒畫12864 下了才知道

ID:162968 · 發(fā)表于 2017-3-3 19:59

謝謝樓主的分享

ID:171746 · 發(fā)表于 2017-3-18 19:57

下來(lái)學(xué)習(xí)學(xué)習(xí)

ID:172742 · 發(fā)表于 2017-3-19 15:22

666好厲害

ID:137629 · 發(fā)表于 2017-4-10 07:45

謝謝樓主。。。。。。

ID:99779 · 發(fā)表于 2017-8-4 16:55

仿真不能用

ID:137883 · 發(fā)表于 2017-8-17 18:22

加五分

ID:162491 · 發(fā)表于 2017-9-27 09:19

51黑有你更精彩

ID:297280 · 發(fā)表于 2018-3-26 15:06

看出來(lái)可是

ID:296556 · 發(fā)表于 2018-3-26 22:57

很給力學(xué)習(xí)一下

ID:234782 · 發(fā)表于 2018-4-20 13:17

能把12864庫(kù)元件給共享嗎

ID:423490 · 發(fā)表于 2018-11-9 11:45

很好用

ID:372237 · 發(fā)表于 2019-8-11 10:47

感謝樓主分享

ID:605686 · 發(fā)表于 2019-10-16 22:59

樓主好人啊，活兩百歲！
write_12864cmd(extra_cmd);//打開擴(kuò)展指令集
write_12864cmd(tu_off);//繪圖關(guān)
我正愁沒看到extra_cmd，tu_off的聲明賦值，原來(lái)在頭文件里了

學(xué)習(xí)了

ID:558833 · 發(fā)表于 2019-10-17 20:09

講的好，感謝分享

ID:747335 · 發(fā)表于 2020-5-10 22:10

wc86110 發(fā)表于 2015-12-3 10:17
還可以,只是圖片顯示上還是留一手。

我的也是，實(shí)物可以，但是仿真不行，哎

ID:795427 · 發(fā)表于 2021-11-10 11:40

仿真文件就是只是一個(gè)空殼殼，沒有電路，難怪沒有上貼圖。

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