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利用AT89S52單片機總線方式點亮LM6063CCW（ST7565）顯示

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ID:46918 發表于 2020-3-4 18:56 | 顯示全部樓層 |閱讀模式
液晶顯示模塊通常用來作為控制設備的人機交互的窗口，把機器/設備的內部參數顯示在液晶屏幕上，今天和大家來分享一下，如何利用單片機的總線來點亮液晶顯示模塊的；
         通常情況下，拿到一個液晶屏幕要如何才能點亮他呢，首先得看懂用戶手冊，也不是要全看懂哈，看懂關鍵的幾個點就可以了：
第一，  接口定義；
第二，  時序圖；
第三，  指令表；
看懂這些就差不多了，這里就拿工業顯示屏幕里比較知名的拓普微的LM6063CCW的模塊（控制器是ST7565的，128x64液晶屏用的最多的控制器了）來做個講解，首先打開手冊(網上一搜一大把哈)：
咱按著節奏來：
第一：接口定義

接口定義

接口定義
全是英文的，不要被嚇到哈，其實這些都是比較簡單的英文，我四級都沒過都能看懂，相信你們也都可以哈；怕有些草根確實看不明白，我挑幾個關鍵點說一下，首先我們只看8080模式：1.手冊里說這個是默認的；2.AT89S52的總線就是8080的；
A0 通道選擇信號，當A0=0時，選擇指令通道；A0=1時，選擇數據通道;
         /RD為讀信號，低電平有效；
         /WR為寫信號，低電平有效；注意：/WR和/RD 不能同時為底電平哈
         /RES復位腳，低電平有效；
         /CS1片選型號，低電平有效；與模塊通訊都需要片選信號有效情況下；
第二：時序圖

時序圖

時序圖
如何看懂時序圖在這里就不多說了在學校師傅應該是有教過的哈，如果已經還給師傅了的話，可以私聊我；

第三:指令表

指令表

指令表
英文的，我也就不多解釋了，最好是看ST7565的IC資料也是英文的，不過我找到了中文版的資料需要的童鞋可以私聊我；

好了接下來畫重點：
很多人都有用IO口點亮過液晶顯示模塊，今天咱來介紹一下更高級的點亮辦法，因為用IO口模擬時序，就需要一個一個信號的去操作，很耗費時間，從而會導致整幅圖片刷新時，能看出刷的效果；那么怎么樣才能夠避免出現刷的效果呢，可以通過節省送數據的時間，而51單片機設計的時候為了快速訪問外部存儲，帶有16根地址線可直接尋址既80總線，這種方式的好處是，他的讀寫時序都是單片機內部產生的時序，因此縮短模擬IO口所花費的時間，可能這么說你感覺不到什么，舉個實例:假設單片機的指令周期為1us，如果是IO口模擬的話至少需要7us，如果是用總線方式只需要1us，相差7倍！廢話少說，直接上干貨：
要使用總線方式，首先硬件要連接好，可參照下面的原理圖設計硬件：

原理圖

原理圖

總線尋址方式是模塊的數據總線直接掛在89S52的數據總線上，/RD、/WR作為模塊的讀、寫控制信號，/CS信號和A0信號都由地址線譯碼產生，模塊的/RES接RC復位電路。
總線尋址方式驅動函數如下：（地址定義，根據用戶平臺接口修改）
1、指令代碼寫入函數
voidSdCmd(uchar Command)
{
  uchar xdata *Com_addr;
Com_addr =0x8000;                 // 指令通道地址
  *Com_addr = Command;         //寫指令操作
}
2、顯示數據寫入函數
voidSdData(uchar DData)
{
uchar xdata *DData_addr;
   DData_addr =0x8100;        // 數據通道地址           
*DData_addr = DData;          //寫數據操作
}
3、顯示數據讀取函數
ucharRdData()
{
uchar DData;
uchar xdata *DData_addr;
DData_addr =0x8100;       //數據通道地址
DData = DData_addr;             //讀數據操作
return(DData);                   //返回數據值
}
其他的代碼就沒啥好說的了，參照附件


  2. #include <stdio.h>
  3. #include <reg52.h>
  4. #include <intrins.h>

  6. #define uchar unsigned char // 0~255
  7. #define uint unsigned int   // 0~65535



  11. bit     AutoRun;           // 1 for auto run, 0 for manual run
  12. uchar   ContrastLevel;     // for contrast setting level



  16. //-----------------------------------
  17. // dispaly data (128x64)
  18. //-----------------------------------
  19. uchar code Logo[]={
  20. /*--  調入了一幅圖像：D:\guoq files\technic support\pic\LM6063c-LOGO-128x64.bmp  --*/
  21. /*--  寬度x高度=128x64  --*/
  22. 0xFF,0x01,0x81,0x01,0x81,0x01,0x81,0x01,0x81,0x41,0x81,0x41,0x81,0x41,0x81,0x41,
  23. 0x81,0x41,0xA1,0x41,0xA1,0x41,0xA1,0x51,0xA1,0x51,0xA1,0x51,0xA9,0x51,0xA9,0x51,
  24. 0xA9,0x55,0xA9,0x55,0x29,0x15,0xAB,0x95,0xCB,0xC5,0xEB,0xE5,0xE3,0xF5,0xF3,0xF9,
  25. 0xFB,0xF9,0xF9,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0x01,0x01,0x41,0x81,0x01,0x81,0x81,
  26. 0x81,0x81,0x81,0x81,0x81,0x81,0x01,0x01,0x01,0xC1,0x01,0x01,0xC1,0x01,0x01,0x81,
  27. 0x01,0x01,0xC1,0x01,0x01,0x01,0xC1,0x01,0x01,0x81,0x81,0x81,0x81,0x81,0x81,0x81,
  28. 0x01,0x01,0x01,0x01,0x41,0x81,0x01,0x01,0x81,0x41,0x01,0x01,0x01,0x01,0x01,0x81,
  29. 0x41,0x81,0x01,0xC1,0x01,0x81,0x01,0xC1,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,
  30. 0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  31. 0x00,0x00,0x80,0x41,0xA8,0x55,0xAA,0x55,0xAA,0x55,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,
  32. 0xF8,0xFD,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  33. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x42,0xE4,0x10,0x00,0x11,0x94,
  34. 0x52,0xFC,0x50,0x92,0x14,0x11,0x00,0x84,0x84,0xFF,0x44,0x44,0xFF,0x00,0x00,0xFF,
  35. 0x00,0x00,0xFF,0x00,0x22,0x22,0xFF,0x12,0x2A,0x10,0xFC,0x13,0x10,0x10,0xF0,0x00,
  36. 0x00,0x08,0x0B,0x0D,0xE9,0xAF,0xA9,0xA9,0xAF,0xA9,0xED,0x0B,0x09,0x00,0x11,0xF8,
  37. 0x04,0x0B,0xEA,0x2B,0xEA,0x8B,0x3C,0xC3,0x3E,0x02,0x00,0x00,0x00,0x00,0x00,0xFF,
  38. 0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,
  39. 0xA8,0x54,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  40. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  41. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x20,0x20,0x23,0x20,0x21,0x21,0x20,
  42. 0x20,0x23,0x20,0x20,0x21,0x21,0x20,0x20,0x21,0x20,0x22,0x21,0x20,0x20,0x20,0x20,
  43. 0x20,0x20,0x23,0x20,0x20,0x22,0x23,0x20,0x20,0x20,0x23,0x21,0x21,0x21,0x23,0x20,
  44. 0x20,0x20,0x20,0x20,0x23,0x22,0x22,0x22,0x22,0x22,0x23,0x20,0x20,0x20,0x20,0x23,
  45. 0x22,0x21,0x20,0x20,0x21,0x22,0x21,0x20,0x21,0x22,0x20,0x20,0x20,0x20,0x20,0xFF,
  46. 0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x20,0x14,0xCA,0xE1,
  47. 0xF8,0xFC,0xFF,0xFF,0xFB,0xFB,0xC3,0xFB,0xFB,0xFF,0xE7,0xDB,0xDB,0xDB,0xE7,0xFF,
  48. 0xC3,0xEB,0xEB,0xEB,0xF7,0xFF,0xE3,0xDF,0xEF,0xDF,0xE3,0xFF,0xCF,0xE7,0xEB,0xE7,
  49. 0xCF,0xFF,0xFB,0xF7,0xCF,0xF7,0xFB,0xFF,0xFF,0x00,0x01,0x01,0xFF,0x01,0x01,0x00,
  50. 0x3C,0x42,0x81,0x81,0x81,0x42,0x3C,0x00,0xFF,0x11,0x11,0x11,0x0E,0x03,0x3C,0xC0,
  51. 0x30,0x0E,0x01,0x0E,0x30,0xC0,0x3C,0x03,0xC0,0x30,0x2E,0x21,0x2E,0x30,0xC0,0x00,
  52. 0x01,0x06,0x08,0xF0,0x08,0x06,0x01,0x00,0x00,0x00,0x00,0xFF,0x80,0x80,0x80,0x80,
  53. 0x04,0xFF,0x84,0x00,0x78,0x84,0x84,0x48,0xFF,0x00,0x00,0x80,0x00,0x00,0x00,0xFF,
  54. 0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  55. 0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xF0,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  56. 0x00,0x00,0xF0,0xF0,0xF0,0x70,0xF0,0xC0,0x00,0x00,0x00,0xC0,0xF0,0x70,0xF0,0xF0,
  57. 0xF0,0x00,0x00,0x80,0xE0,0xE0,0x70,0x30,0x30,0x70,0x60,0x40,0x00,0x00,0x80,0xE0,
  58. 0xE0,0x70,0x30,0x70,0xE0,0xE0,0x80,0x00,0x00,0x80,0xE0,0xE0,0x70,0x30,0x30,0x70,
  59. 0x60,0x40,0x00,0x00,0xC0,0xE0,0xF0,0x30,0x30,0x30,0xF0,0xE0,0xC0,0x00,0x00,0x00,
  60. 0xC0,0xE0,0xE0,0x70,0x70,0x70,0x70,0xF0,0xE0,0xE0,0x80,0x00,0x00,0x00,0x00,0x00,
  61. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
  62. 0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  63. 0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x80,0x80,0x80,0x80,0x80,0x80,0x80,
  64. 0x00,0x00,0xFF,0xFF,0xFF,0x00,0x07,0x7F,0xFC,0xC0,0xFC,0x7F,0x07,0x00,0xFF,0xFF,
  65. 0xFF,0x00,0x00,0x7F,0xFF,0xFF,0x86,0x03,0x87,0xFF,0xFE,0x7C,0x00,0x00,0x7F,0xFF,
  66. 0xFF,0x80,0x00,0x80,0xFF,0xFF,0x7F,0x00,0x00,0x7F,0xFF,0xFF,0x86,0x03,0x87,0xFF,
  67. 0xFE,0x7C,0x00,0x00,0xC0,0xC0,0xC0,0x00,0x06,0x06,0xFF,0xFF,0xF9,0x00,0x00,0x3F,
  68. 0xFF,0xFF,0xC0,0x80,0x80,0x80,0x80,0xC0,0xE1,0xE1,0x40,0x00,0x00,0x00,0x00,0x00,
  69. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
  70. 0xFF,0x00,0xE0,0x20,0x20,0x20,0x20,0x00,0xC0,0x20,0x20,0x20,0x20,0x40,0x00,0x20,
  71. 0x20,0xE0,0x20,0x20,0x00,0xE0,0x43,0x83,0x03,0x03,0xE3,0x03,0x03,0x03,0x03,0xE3,
  72. 0x00,0x00,0x03,0x03,0x03,0x80,0x40,0x20,0x23,0x23,0x43,0x00,0xE0,0x20,0x23,0x23,
  73. 0x43,0x80,0x00,0x00,0x01,0x01,0x83,0x43,0xE3,0x01,0x01,0x00,0x40,0x20,0x20,0x21,
  74. 0xC1,0x03,0xC3,0x23,0x21,0x21,0xC0,0x00,0x00,0x00,0x01,0x81,0x03,0x03,0x03,0x81,
  75. 0x01,0x00,0x00,0x00,0xC0,0x21,0x23,0x23,0x43,0x03,0x03,0x81,0x40,0xE0,0x00,0x00,
  76. 0x00,0x01,0x01,0xE3,0x23,0x23,0x23,0xC3,0x01,0xA1,0x00,0x80,0x00,0x00,0x00,0x80,
  77. 0x00,0x00,0x80,0x80,0x80,0x00,0x00,0xE0,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0xFF,
  78. 0xFF,0x80,0x9F,0x81,0x81,0x81,0x80,0x80,0x88,0x91,0x91,0x92,0x92,0x8C,0x80,0x80,
  79. 0x80,0x9F,0x80,0x80,0x80,0x9F,0x80,0x81,0x86,0x88,0x9F,0x80,0x80,0x80,0x80,0x9F,
  80. 0x90,0x90,0x90,0x90,0x80,0x87,0x88,0x90,0x90,0x90,0x88,0x80,0x9F,0x90,0x90,0x90,
  81. 0x88,0x87,0x80,0x80,0x80,0x80,0x80,0x80,0x9F,0x80,0x80,0x80,0x90,0x98,0x94,0x92,
  82. 0x91,0x80,0x8E,0x91,0x91,0x91,0x8E,0x80,0x80,0x80,0x80,0x90,0x89,0x86,0x89,0x90,
  83. 0x80,0x80,0x80,0x80,0x8F,0x91,0x91,0x91,0x8E,0x80,0x86,0x85,0x84,0x9F,0x84,0x80,
  84. 0x80,0x80,0x80,0x9F,0x82,0x82,0x82,0x81,0x80,0x9F,0x80,0x90,0x89,0x86,0x89,0x90,
  85. 0x80,0x8F,0x92,0x92,0x92,0x8B,0x80,0x9F,0x80,0x89,0x92,0x92,0x94,0x89,0x80,0xFF

  87. };

  89. //-----------------------------------
  90. // Delay Routine
  91. //-----------------------------------
  92. void delayms(uint m)        // 12MHz Xtal, close to ms value
  93. {
  94.     uint j;
  95.     uint i;
  96.    
  97.     for(i=0; i<m; i++)
  98.         for(j=0; j<109; j++)
  99.            _nop_();
  100. }
  101. //--------------------------------------------
  102. //總線尋址方式驅動程序  (INTEL8080 時序)

  104. //-----指令代碼寫入函數----------------------
  105. void SdCmd(uchar Command)
  106. {
  107.         uchar xdata *Com_addr;            
  108.     Com_addr =0x8000;                // 指令口地址
  109.     *Com_addr = Command;       // 寫指令操作
  110. }
  111. //-----顯示數據寫入函數--------------------------
  112. void SdData(uchar DData)
  113. {
  114.     uchar xdata *DData_addr;
  115.     DData_addr =0x8100;               // 數據口地址
  116.     *DData_addr = DData;              // 寫數據操作
  117. }
  118. //------顯示數據讀取函數-------------------------
  119. uchar RdData()
  120. {
  121.    uchar DData;
  122.    uchar xdata *DData_addr;
  123.    DData_addr = 0x8100;      // 讀數據地址
  124.    DData = *DData_addr;      // 讀數據操作
  125.    return(DData);           //返回數據值

  127. }

  129. //-----------------------------------
  130. // Write a Screen
  131. //-----------------------------------
  132. void WriteScreen(uchar *DisplayData)        // DisplayData should be 164x64/8 = 1312byte
  133. {
  134.         uchar TempData;
  135.         uchar i, j;
  136.         for(i=0;i<8;i++)
  137.             {
  138.             SdCmd(0xb0 | i);        // select page 0~7
  139.             SdCmd(0x10);            // start form column 0
  140.             SdCmd(0x00);            // (2byte command)
  141.              for(j=0;j<128;j++)
  142.                      {
  143.                      TempData=(*(DisplayData+(i*128)+j));
  144.                      SdData(TempData);
  145.                     }
  146.         }
  147. }

  149. /*
  150. //-----------------------------------
  151. // Contrast control
  152. //-----------------------------------
  153. void LCD_Darker(void)
  154. {
  155.         if (ContrastLevel<0x3F)
  156.             {
  157.         ContrastLevel++;
  158.                 }
  159.     SdCmd(0x81);                     // E-Vol setting
  160.         SdCmd(ContrastLevel);   // (2byte command)
  161. }



  165. void LCD_Lighter(void)
  166. {
  167.         if (ContrastLevel>0x00)
  168.             {
  169.              ContrastLevel--;
  170.                 }
  171.     SdCmd(0x81);            // E-Vol setting
  172.         SdCmd(ContrastLevel);   // (2byte command)
  173. }

  175. */

  177. //-----------------------------------
  178. // Init LCD module
  179. //-----------------------------------
  180. void initLCDM(void)
  181. {
  182.         _RST=1;                 // hardware reset LCD module
  183.         _RST=0;
  184.         delayms(1);
  185.         _RST=1;
  186.         delayms(10);
  187.        
  188.     ContrastLevel=0x21;     // default Contrast Level

  190.         SdCmd(0xaf);            // display on
  191.         SdCmd(0x40);            // display start line=0
  192.     SdCmd(0xa1);            // ADC=1
  193.     SdCmd(0xa6);            // normal display
  194.     SdCmd(0xa4);            // Display all point = off
  195.     SdCmd(0xa2);            // LCD bias = 1/9
  196.     SdCmd(0xc0);            // Common output mode select= reverse


  199.     SdCmd(0x2f);            // Power control = all on

  201.            SdCmd(0x25);                        // RA/RB setting

  203.            SdCmd(0xf8);SdCmd(0x00);// Booster Ratio Set= 2x,3x,4x (2byte command)

  205.         SdCmd(0x81);            // E-Vol setting
  206.     SdCmd(ContrastLevel);   // (2byte command)
  207. }

  209. //-----------------------------------
  210. // Main Program
  211. //-----------------------------------
  212. void main()
  213. {
  214.         SP=0x60;
  215.         EA = 0;         // disable interrupts

  217.   
  218.     _RST    = 1;


  221.            initLCDM();
  222.         WriteScreen(Logo);   
  223.         while(1)
  224.         {
  225.         }
  226. }
  227. //end of program
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ID:46918 發表于 2020-3-10 08:33 | 顯示全部樓層
看樣子大家都是大蝦呀，都沒啥人提問呀
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ID:343102 發表于 2021-7-5 21:22 | 顯示全部樓層
程序缺太多內容。
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