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標題: 51單片機lcd12864全屏顯示圖片程序詳解 [打印本頁]
作者: hongniu    時間: 2015-6-23 18:44
標題: 51單片機lcd12864全屏顯示圖片程序詳解
本帖最后由 hongniu 于 2015-6-23 18:46 編輯

今天對軟件做了調整使能顯示全屏圖像，如下圖示：
11月19日晚于天津四項目部宿舍



原始圖片



轉換黑白后：


液晶顯示器顯示：





源程序：
  1. #include<reg51.h>
  2. #define uint unsigned int;
  3. #define uchar unsigned char;
  4. sbit rs=P1^0;//并行模式下為指令數據選擇信H/L=指令/數據
  5. sbit rw=P1^1;//并行的讀寫信號H/L=讀/寫
  6. sbit e=P1^2; //并行下的使能信號
  7. sbit reset=P1^5;

  9.    uchar x,y;
  10.    uchar datetabal;
  11. uchar d1,d2;//數據緩沖
  12. uchar k=0,h=0;
  13. unsigned int i,j;


  16. uchar code tab[]={/*--  調入了一幅圖像：C:\Users\lenovo\Desktop\是.bmp  --*/
  17. /*--  寬度x高度=128x64  --*/
  18. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x07,0xFF,0xFF,0xFF,
  19. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x03,0xFF,0xFF,0xFF,
  20. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE0,0x00,0x01,0xFF,0xFF,0xFF,
  21. 0x7F,0xFF,0xFF,0xFF,0xE1,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0xFF,0xFF,0xFF,
  22. 0x4F,0xFF,0xFF,0xFE,0x00,0x61,0xCF,0xFF,0xF9,0xFF,0xC0,0x00,0x00,0xFF,0xFF,0xFF,
  23. 0x47,0xFF,0xFF,0xF0,0x00,0x40,0xC7,0xFF,0xF8,0xFF,0xC3,0x80,0x70,0x7F,0xFF,0xFF,
  24. 0x47,0xFF,0xFF,0x3E,0x3C,0x04,0x47,0xFF,0xF8,0xFF,0xCF,0xFF,0xFF,0xFF,0xFF,0xFF,
  25. 0x44,0x01,0xE1,0x60,0x60,0x04,0x47,0xE1,0xC0,0xFF,0xFF,0xF7,0xBF,0xFF,0xFF,0xFF,
  26. 0x44,0x00,0xC0,0xC0,0x40,0x18,0x47,0xC0,0x80,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  27. 0x44,0x44,0x60,0x44,0x40,0x30,0xC7,0xC6,0x08,0xFF,0xFF,0xFF,0x9F,0xFF,0xFF,0xFF,
  28. 0x44,0x44,0x60,0x44,0x40,0x61,0xC7,0xC7,0x88,0xFF,0xFF,0x3E,0x3F,0xFF,0xFF,0xFF,
  29. 0x44,0x44,0x40,0x44,0x46,0x43,0xC7,0xC7,0x88,0xFF,0xFF,0x9D,0x1F,0xFF,0xFF,0xFF,
  30. 0x44,0x44,0x44,0x04,0x04,0x47,0xC7,0xC4,0x88,0xFF,0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,
  31. 0x44,0x44,0x60,0x00,0x00,0x00,0xC0,0x60,0x40,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  32. 0x66,0x66,0x70,0x60,0x00,0x00,0x60,0x30,0xE0,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,
  33. 0x7F,0xFF,0xFF,0x8C,0x7F,0xC3,0xFF,0xFF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,
  34. 0x7F,0xFF,0xFF,0x80,0x7F,0xF3,0xFF,0xFF,0xFF,0xFF,0xF3,0xFF,0xFF,0xFF,0xFF,0xFF,
  35. 0x7F,0xFF,0xFF,0xB0,0xFE,0x7B,0xFF,0xFF,0xFF,0xFF,0xF0,0x80,0x1B,0xFF,0xFF,0xFF,
  36. 0x7F,0xFF,0xFF,0xBF,0xFF,0xFB,0xFF,0xFF,0xFF,0xF8,0xB0,0x20,0x13,0xEF,0xFF,0xFF,
  37. 0x7F,0xFF,0xFF,0xFF,0x7E,0xFF,0xFF,0xFF,0xFF,0x00,0xFB,0x80,0x03,0xE0,0x1F,0xFF,
  38. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,0x00,0x50,0xE0,0x07,0xE8,0x07,0xFF,
  39. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x78,0x7E,0xC0,0x03,0xFF,
  40. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x1F,0xEE,0xC0,0x01,0xFF,
  41. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x07,0xFC,0xC0,0x00,0xFF,
  42. 0x7F,0xFF,0xFF,0xFF,0xC0,0xFF,0xFF,0xFF,0x80,0x00,0x02,0x03,0xFD,0x80,0x20,0x7F,
  43. 0x7F,0xFF,0xFF,0xF7,0xE1,0xCF,0xFF,0xFF,0x00,0x00,0x01,0x00,0xF9,0x80,0x20,0x3F,
  44. 0x7F,0xFF,0xFF,0xFF,0xE0,0x1F,0xFF,0xFE,0x00,0x00,0x00,0x00,0xF9,0x00,0x20,0x3F,
  45. 0x7F,0xFF,0xFE,0xDE,0x00,0x1F,0xFF,0xFC,0x00,0x00,0x00,0xF9,0xFF,0x00,0x20,0x3F,
  46. 0x7F,0xFF,0xFC,0x0F,0x00,0x00,0x3F,0xF8,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xE0,0x1F,
  47. 0x7F,0xFF,0xFF,0xF8,0x00,0x00,0x03,0xF0,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xE0,0x1F,
  48. 0x7F,0xFF,0xFF,0xFF,0xA3,0xE0,0x03,0xE0,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xE0,0x1F,
  49. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE0,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xE0,0x1B,
  50. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x30,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xE0,0x11,
  51. 0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x18,0x00,0x03,0xFF,0xFF,0xFC,0x7F,0xE0,0x01,
  52. 0x7F,0xFF,0xC3,0xFF,0xC7,0xFF,0xFE,0x0E,0x00,0x03,0xFF,0xFC,0x00,0x7F,0xE0,0x00,
  53. 0x7F,0xF8,0x03,0xFF,0xC3,0xFF,0xFE,0x06,0x00,0x03,0xFF,0x1E,0x78,0x7F,0xE0,0x01,
  54. 0x7F,0xC0,0x03,0xFF,0xF8,0x07,0xFE,0x07,0x00,0x03,0xFF,0x8E,0x60,0xFF,0xE0,0x07,
  55. 0x7F,0x00,0x03,0xFB,0x00,0x07,0xFC,0x01,0x00,0x03,0xFF,0xC6,0x01,0xFF,0xEE,0x0F,
  56. 0x7F,0x00,0x03,0xF3,0x88,0x7F,0xFC,0x00,0x00,0x0B,0xF0,0x06,0x13,0xFF,0xFF,0xFF,
  57. 0x7F,0x00,0x03,0xF9,0xF1,0xE7,0xFC,0x03,0xE0,0x01,0xF0,0x7E,0x73,0x1F,0x0F,0xFF,
  58. 0x7E,0x00,0x7F,0xFF,0xC0,0x07,0xF7,0x83,0xFF,0x7C,0x7C,0xFE,0x70,0x1F,0x5B,0xFF,
  59. 0x7E,0x01,0xFF,0xFB,0xC0,0x03,0xF7,0xD2,0x7E,0xF1,0x7C,0xFE,0x00,0xFC,0xEF,0xFF,
  60. 0x7C,0x03,0xFF,0xF3,0xF3,0xE3,0xF3,0x40,0xFE,0x88,0xFC,0xFF,0x09,0xFF,0xFF,0xFF,
  61. 0x78,0x03,0xFE,0xF3,0xF2,0x0F,0xE0,0xE0,0x7F,0xE3,0x7C,0xF8,0x39,0xF9,0xF3,0xFF,
  62. 0x60,0x03,0xFD,0xF3,0xF2,0x47,0xE1,0xF8,0x7C,0x83,0xDC,0x00,0x38,0xF9,0xE3,0xFF,
  63. 0x60,0x03,0xD9,0xFF,0xF8,0x47,0xE1,0xF8,0xFE,0x43,0xFC,0x0F,0x38,0xF3,0xE0,0x7F,
  64. 0x40,0xD9,0xE3,0xFE,0x79,0x07,0xC1,0xF0,0xFE,0x05,0xFF,0xFF,0x30,0x73,0xE7,0xFF,
  65. 0x00,0xF2,0x01,0xFE,0x71,0x27,0x80,0xE0,0x7F,0x2C,0xFF,0xFF,0x07,0x03,0xE1,0xFF,
  66. 0x00,0x50,0x03,0xFC,0x72,0x27,0x00,0x00,0x3F,0xF8,0xFF,0xFF,0x0F,0x83,0xE1,0xFF,
  67. 0x01,0x00,0x03,0xFC,0xF2,0x27,0x80,0x00,0x02,0x00,0x7F,0xFF,0xFF,0xFF,0xE3,0xFF,
  68. 0x40,0x00,0x03,0xF1,0xF7,0x30,0x00,0x00,0x10,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,
  69. 0x40,0x00,0x03,0xF3,0xFF,0xF8,0x20,0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,
  70. 0x60,0x00,0x03,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
  71. 0x70,0x00,0x03,0xFF,0xFF,0xFF,0xF0,0x00,0x02,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
  72. 0x78,0x00,0x03,0xFF,0xFF,0xFF,0xA0,0x00,0x02,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
  73. 0x7C,0x00,0x17,0xFF,0xFF,0xFE,0x80,0x00,0x06,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
  74. 0x00,0x00,0x7F,0xFF,0xFF,0xFE,0x00,0x00,0x04,0x00,0x1F,0xFE,0xFF,0xFF,0xFF,0xFF,
  75. 0x00,0x00,0x0F,0xFF,0xFF,0xFC,0x00,0x00,0x04,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,
  76. 0x00,0x00,0x07,0xFF,0xFF,0xFC,0x00,0x00,0x04,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,
  77. 0x00,0x00,0x07,0xFF,0xFF,0xFC,0x00,0x00,0x04,0x04,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,
  78. 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,
  79. 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
  80. 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  81. 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

  83. };


  86. void delay40ms(void)   //誤差 -0.000000000009us
  87. {
  88.     unsigned char ad,bd,cd;
  89.     for(cd=11;cd>0;cd--)
  90.         for(bd=124;bd>0;bd--)
  91.             for(ad=12;ad>0;ad--);
  92. }
  93. void delay4_6ms()//
  94. {
  95. unsigned char av,bv;
  96.     for(bv=12;bv>0;bv--)
  97.         for(av=175;av>0;av--);

  99. }
  100. void delay(void)
  101. {
  102.      ;;;

  104. }

  106. void writedate(unsigned char a)//寫數據
  107. {
  108.   





  114.    delay4_6ms();
  115.       rs=1;
  116.     delay();
  117.     rw=0;
  118.    delay();
  119.    e=1;
  120.    delay();


  123.    P0=a;
  124.   
  125.   

  127. delay();
  128. e=0;
  129. delay();






  136. }

  138. void writectrl(unsigned char ds)//寫指令
  139. {
  140.   rs=0;
  141.    delay();
  142.     rw=0;
  143.   delay();
  144.    e=1;
  145.    delay();
  146. P0=ds;
  147. delay();
  148. e=0;
  149.    delay();
  150.   

  152. }

  154. void main()
  155. {
  156.     reset=0;
  157.     delay();
  158.     reset=1;
  159.     delay40ms();

  161.   writectrl(0x3f);//開擴充指令操作數據位選擇8位
  162.    delay4_6ms();


  165.    writectrl(0x3e);//寫指令擴充指令操作，8位數據，繪圖開關關
  166.   delay4_6ms();

  168.    // writectrl(0x80);//寫指令設置  垂直  列地址 Y軸為  “0”
  169.    //delay4_6ms();
  170.     //writectrl(0x80);//寫指令設置 水平  行地址 X軸  “0”
  171.        //delay4_6ms();
  172.      //writedate(0xffff);  //數據寫入FffFH
  173.   //delay4_6ms();


  176.    x=0;
  177.    y=0;   //記得初始化啊
  178.    i=0;
  179.    j=0;
  180. for( h=0;h<32;h++  )
  181. {
  182.      x=0;
  183.    for (k=0;k<8;k++)
  184.    {

  186.    
  187.    
  188.    writectrl((0x80+y));//寫指令設置  垂直  列地址 Y軸為  “0”
  189.    delay4_6ms();
  190.     writectrl((0x80+x));//寫指令設置 水平  行地址 X軸  “0”
  191.        delay4_6ms();     
  192.   writedate(tab[i]);  //數據寫入FFH
  193.         i++;  // i是用來當指針用的 其實這里也可以換成指針，我喜歡這樣所以。。。
  194.   writedate(tab[i]);  //數據寫入FFH
  195.   delay4_6ms();
  196.      i++; //
  197.    
  198.      x++;//
  199.   
  200.     }

  202.     y++; //只有行掃了8個字，才可以加以，因為8個字節正好是一行，這就是下一列的呵呵







  210.   
  211. }

  213. //;***********以上是上半屏（Y=0-1F,X=0-07）以下是下扳平Y=8-0F X=0-1F********************************
  214. x=0;y=0;//這里XY清零是因為下半屏是從88H開始的，而上半屏是從80H開始的其實這里就是用到了上邊的，只是改了個水平坐標值，垂直坐標還是從0-31
  215. for( h=0;h<32;h++  )
  216. {
  217.      x=0;
  218.    for (k=0;k<8;k++)
  219.    {

  221.    
  222.    
  223.    writectrl((0x80+y));//：/寫指令設置  垂直  列地址 Y軸為  “0”
  224.    delay4_6ms();
  225.     writectrl((0x88+x));//寫指令設置 水平  行地址 X軸  “0”
  226.        delay4_6ms();     
  227.    writedate(tab[i]);  //數據寫入FFH
  228.          i++;
  229.    writedate(tab[i]);  //數據寫入FFH
  230.   
  231.   delay4_6ms();
  232.          i++;
  233.      x++;
  234.   
  235.     }

  237.     y++;







  245.   
  246. }

  248.   




  253. while(1);  //*******************************************************
  254.             //12864到今晚我也成功了，呵呵，我是這樣的：把12864分成兩部分，上半部分12832，下半部分12832
  255.       //然后用掃描的辦法從第一行開始掃描，知道32行，在執行下半部分掃描程序，第33行開始，掃描32行道64至
  256.       //這里還要說一個事：關于12864畫圖，你看那大海，水很多，但是它是由一滴滴水組成的，所以要想在12864屏幕上顯示一幅圖像，你就要
  257.       //從一個點開始，第一步我讓第一行的第一列顯示一個點，怎么實現呢？我開始很是不明白，看了一天的手冊，一下午的實驗，終于總結出
  258.       //1：向7920的寫入3F和3E指令，使液晶工作在擴展指令狀態，8位數據，繪圖開關開2：設定繪圖RAM地址，先寫入列（Y軸）再寫入行（X軸）
  259.       //然后再一口氣寫入16位的數據，也可以寫8位，但要寫2次，我是采取后者，然后這十六是什么呢？---即這樣的排列D15-D0，讓第一個點就寫入8000H
  260.       //那么，現在就是在第一行第一列顯示一個點！呵呵，會寫一個點，你就一定會寫一幅圖像了，為什么呢，你只要讓單片機這樣重復的寫512個字就是有一幅
  261.       //12864的圖像了，這其實說白了就是點陣啊----------



  265.       //呵呵，2010年11月17日  與天津開發區第四項目部宿舍，操今天給分包隊干了一天的活，很郁悶，但是有單片機真的讓我開心起來
  266.       //
  267.       //
  268.       //
  269.       //
  270.       //
  271.       //
  272.       //
  273.       ///
  274.       //***************************************************8

  276. }
復制代碼



作者: xian327    時間: 2016-1-24 16:03
怎么轉成那種黑白圖的，圖片格式用什么轉的？我用的ps還是不行
作者: yulin3192    時間: 2018-4-21 04:06
學習了
謝謝樓主的分享
作者: 闊愛的釗釗    時間: 2018-5-22 15:30
額，可能是仿真的問題吧，proteus做出來一直報錯
作者: 晚香蘭123456    時間: 2019-7-12 16:25
xian327 發表于 2016-1-24 16:03
**** 作者被禁止或刪除 內容自動屏蔽 ****

用圖片取模軟件
作者: 晚香蘭123456    時間: 2019-7-12 16:26
真實，好貼，感謝樓主分享
作者: xdda    時間: 2021-8-1 15:55
我用這個程序燒到單片機，12864為啥是空的，啥也沒顯示

作者: 51hei團團    時間: 2021-8-1 15:57
xdda 發表于 2021-8-1 15:55
我用這個程序燒到單片機，12864為啥是空的，啥也沒顯示

因為你的電路和作者的電路不同,屏的具體型號也應該不同,肯定不能顯示啊
作者: herui2128    時間: 2022-9-29 09:54
通過修改可以顯示圖片了，但是想在液晶串口要顯示，要怎么修改程序呀，求指導



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