51單片機實現12864圖形點陣顯示C語言與匯編程序及資料

ID:417080 · 發表于 2019-6-12 10:59

            DATA  VISION 的12864圖形點陣LCD屏
簡介: STN,有LED背光,無控制芯片,驅動芯片為M5299/M5298,4位數據接口,無內部負壓
/****************************************************************************************/
重要接口解析
CLP       CP 數據的移位時鐘
LIP       LD 數據鎖存信號，每移位一行數據鎖存一次，高電平時間不能小于1.46uS
FRMB       DF 交替信號(LCD驅動所需的交替信號)
FRP       FLM 幀信號
/****************************************************************************************/

LCD接口
1. LED+
2. LED-
3. VCC
4. GND
5. -VP          我接-15V直流電壓，-20V到-5V都可以
6. LD I 5298的36腳(CP),5299的49腳(LOAD)
7. DF I 5298的35腳(DF)
8. FLM I 5298的37腳(IO1)
9. CP I 5299的47腳(CP)
10. GND
11. D0       5299的43-46腳(D3-D0)
12. D1
13. D2
14. D3
/****************************************************************************************/
編程思路：
      M5299是列驅動，本液晶使用了兩片M5299
      M5298是行驅動，本液晶使用了一片M5298
數據線D0--D3是接到M5299上面的（看上面的LCD接口列表），所以就決定了點陣數據在液晶屏上面是橫向填充的，這個很重要，你用軟件對漢字和圖片取模的時候要設置的，也就是設置為橫向取模。
   編程的時候主要的接口是：CP，LD，FLM，D0--D3
具體是這樣的：
   先給數據D0--D3，接著給移位時鐘CP（下降沿），再給
數據D0--D3，再給時鐘，……一直到給了32個時鐘的時候(此時數據移滿一行,32x4=128),給一個鎖存信號LD將數據送出.這個M5299的鎖存信號同時接到了M5298的CP端,而M5298是行驅動,其結果就是移到了下一行,又開始新一輪的送數據…….當送完整個一屏的時候,也就是一幀,給一個幀信號FLM.

要注意的地方:
   (1)要先給高4位數據,再給低4位數據
   (2)移位時鐘是下降沿使能
   (3)移完128點一行后再移8個時鐘再鎖存
   (4)我用C寫程序顯示畫面有點閃爍，用匯編就沒有這個問題
      畫面很清晰
/****************************************************************************************/
整個掃屏過程就像是電視機的顯像管掃描,如果你看過電視機的
原理,那就很容易理解了.

         數據移位時鐘CP VS 顯像管行掃描
         數據鎖存信號LD VS 顯像管場掃描

制作出來的實物圖如下：

單片機c語言源程序如下:

//************************************************
// DATA VISION 的12864圖形點陣LCD屏
//簡介: STN,有LED背光,無控制芯片,驅動芯片為M5299/M5298,4位數據接口,無內部負壓
//************************************************
//程序功能：顯示圖片,AT89s51，用20MHz有源晶振
//單位：桂林電子科技大學/電子工程學院/8201班
//作者:覃秋霖
//2008.5
//************************************************
#include "reg51.h"
#define DATA_POR P0
#define uchar unsigned char
#define uint unsigned int
sbit LOAD = P0^0;
sbit DF = P0^1;
sbit FLM = P0^2;
sbit CLK = P0^3;
uchar code logo[]={
/*-- 寬度x高度=128x64 --*/
0x00,0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-------------------------見附件
};
//*******************************************
//函數名稱:void disyPicture(uchar *Ptr)
//函數功能:掃描顯示
//形式參數:uchar *Ptr
//行參說明:數組地址
//返回參數:無
//使用說明:無
//*******************************************
void disyPicture(uchar *Ptr)
{
uchar i,j;
uchar dataTemp1,dataTemp2;
bit DF_b;
DF_b = 0;
for(j=1;j<=64;j++) {
for(i=1;i<=16;i++) {
dataTemp1 = *(Ptr++);
DATA_POR = 0;
CLK = 1;
dataTemp2 = DATA_POR & 0x0f;
DATA_POR = (dataTemp1 & 0xf0) | dataTemp2;
CLK = 0;
CLK = 1;
dataTemp2 = DATA_POR & 0x0f;
DATA_POR = (dataTemp1 << 4) | dataTemp2;
CLK = 0;
}
DATA_POR = DATA_POR & 0x0f;
i = 8;
while(i--) {
CLK = 1;
CLK = 0;
}
LOAD = 1;
LOAD = 1;
LOAD = 1;
LOAD = 1;
LOAD = 0;
}
LOAD = 1;
FLM = 1;
DF = ~DF_b;
LOAD = 0;
CLK = 1;
……………………
…………限于本文篇幅余下代碼請從51黑下載附件…………

復制代碼

單片機匯編語言源程序:

//************************************************
// DATA VISION 的12864圖形點陣LCD屏
//簡介: STN,有LED背光,無控制芯片,驅動芯片為M5299/M5298,4位數據接口,無內部負壓
//************************************************
//程序功能：顯示圖片,AT89s51，用20MHz有源晶振
//單位：桂林電子科技大學/電子工程學院/8201班
//作者:覃秋霖
//2008.5
//************************************************
LOAD BIT P0.0 ;每行數據鎖存,每40個CLK執行一個LOAD
DF BIT P0.1 ;交流驅動信號
FLM BIT P0.2 ;幀信號，每64個LOAD執行一個FLM
CLK BIT P0.3 ;數據移位時鐘
DATA_PORT EQU P0
ORG 0000H
LJMP MAIN
ORG 30H
MAIN: MOV DATA_PORT ,#0
LOOP3: MOV DPTR, #0400H-1
MOV R0, #64 ;液晶64行
LOOP4: MOV R1, #16 ;16x8=128,8是下面送出的數據位數
LOOP1: INC DPTR
CLR A
SETB CLK
MOVC A, @A+DPTR ;讀數據
ANL A, #0F0H ;保留高4位
ANL DATA_PORT , #0FH ;保留低4位
ORL DATA_PORT , A ;高低位相并輸出(輸出高4bit數據)
CLR CLK ;數據移位
CLR A
MOVC A, @A+DPTR
SWAP A ;交換A中的高低4bit
SETB CLK ;
ANL A, #0F0H ;-----同上-------
ANL DATA_PORT , #0FH ;
ORL DATA_PORT , A ;高低位相并輸出(輸出低4bit數據)
CLR CLK
DJNZ R1, LOOP1
ANL P1, #0FH
SETB CLK ;;;;;;;;;;;;;;;;;8個移位時鐘(無數據)
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;
SETB CLK ;
CLR CLK ;;;;;;;;;;;;;;;;;
DJNZ R0, LOOP2
SETB LOAD
SETB FLM
CPL DF ;按位取反
CLR LOAD
SETB CLK
CLR FLM
LJMP LOOP3
LOOP2: SETB LOAD
NOP
NOP
CLR LOAD
LJMP LOOP4
ORG 0400H
//字庫
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DB 000H, 000H, 000H, 0FFH, 0FCH, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H
DB 000H, 000H, 001H, 0FFH, 0FFH, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H
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DB 000H, 000H, 000H, 0FFH, 0FFH, 0FFH, 0E7H, 080H, 000H, 060H, 0AEH, 095H, 009H, 02AH, 094H, 086H
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DB 000H, 000H, 000H, 00FH, 0FEH, 000H, 0E0H, 0E0H, 000H, 030H, 0AEH, 097H, 002H, 08EH, 097H, 086H
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DB 000H, 03FH, 080H, 03FH, 0F8H, 000H, 010H, 038H, 000H, 018H, 000H, 000H, 000H, 000H, 000H, 00CH
DB 000H, 0FFH, 0E0H, 07FH, 0F8H, 000H, 000H, 03CH, 000H, 00CH, 000H, 000H, 000H, 000H, 000H, 01CH
DB 003H, 0FFH, 0F8H, 07FH, 0F0H, 000H, 001H, 09CH, 00FH, 086H, 000H, 000H, 000H, 000H, 000H, 070H
DB 007H, 0FFH, 0FCH, 0FFH, 0F0H, 000H, 0E3H, 0CEH, 01FH, 0C7H, 000H, 000H, 000H, 000H, 01FH, 0C0H
DB 00FH, 0FFH, 0FFH, 0FFH, 0F0H, 001H, 0F3H, 0EEH, 03FH, 0E3H, 000H, 000H, 001H, 0FFH, 0FFH, 080H
DB 01FH, 0FFH, 0FFH, 0FFH, 0F0H, 001H, 0FBH, 0F6H, 07FH, 0F1H, 080H, 000H, 07FH, 0FFH, 0E0H, 000H
DB 01FH, 0FFH, 0FFH, 0FFH, 0F0H, 001H, 0FDH, 0F7H, 07FH, 0F1H, 080H, 000H, 0FEH, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0F8H, 000H, 0FFH, 0FFH, 07FH, 0F1H, 080H, 003H, 0C0H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0F8H, 000H, 0FEH, 01BH, 07FH, 0F1H, 080H, 007H, 080H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0F8H, 000H, 00EH, 07BH, 0FFH, 0F1H, 080H, 00EH, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FCH, 000H, 01FH, 07FH, 0FFH, 0F1H, 080H, 01CH, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FCH, 000H, 03FH, 07FH, 0FFH, 0E1H, 080H, 018H, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FEH, 000H, 03FH, 07CH, 0FFH, 0C1H, 080H, 070H, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FFH, 000H, 01FH, 038H, 07FH, 081H, 000H, 0E0H, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FFH, 080H, 00FH, 070H, 03FH, 083H, 001H, 0C0H, 000H, 000H, 000H, 000H
DB 03FH, 0FFH, 0FFH, 0FFH, 0FFH, 0C0H, 006H, 040H, 01DH, 086H, 007H, 000H, 000H, 000H, 000H, 000H
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DB 00FH, 0FFH, 0FFH, 0F0H, 03CH, 000H, 000H, 000H, 007H, 01EH, 000H, 000H, 000H, 000H, 000H, 000H
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DB 000H, 000H, 000H, 00CH, 01FH, 0FFH, 0FFH, 0FCH, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H
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DB 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H, 000H
END

復制代碼

所有資料51hei提供下載:

51單片機實現的12864圖形點陣LCD控制器.rar (271.08 KB, 下載次數: 33)

ID:94449 · 發表于 2020-2-19 17:57

天天家里蹲，翻出個吃灰的12864，下樓主程序來點亮下，謝謝了。

ID:333807 · 發表于 2020-2-21 09:57

下樓主程序來點亮下，謝謝了。

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51單片機實現12864圖形點陣顯示C語言與匯編程序及資料

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