?? lcd1.lst
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C51 COMPILER V8.02 LCD1 03/13/2008 15:50:32 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE LCD1
OBJECT MODULE PLACED IN lcd1.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE lcd1.c BROWSE DEBUG OBJECTEXTEND
line level source
1 //***************************************************************************
2 //連線表: CPU=89C52 SystemClock=12Mhz *
3 //CS=P3.0 SCLK=P3.1 SID=P3.2 Reset=RC in Board *
4 //***************************************************************************
5 #include<AT89X52.H>
6 #include <intrins.h>
7
8 sbit CS =P2^5;
9 sbit SCK=P2^7;
10 sbit SID=P2^6;
11 sbit Key=P2^4;
12 unsigned char code AC_TABLE[]={0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, //第一行漢字位置
13 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97, //第二行漢字位置
14 0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f, //第三行漢字位置
15 0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f, //第四行漢字位置
16 };
17 unsigned char code str2[]="歡迎光臨sonsan!!";
18 unsigned char code str1[]="黃河遠上白云間，一片孤城萬仞山。羌笛何須怨楊柳，春風不度玉門關。";
19 unsigned char code bmp1[];
20 //串口發送一個字節
21 void SendByte(unsigned char Dbyte)
22 { unsigned char i;
23 1 for(i=0;i<8;i++)
24 1 {
25 2 SCK = 0;
26 2 Dbyte=Dbyte<<1; //左移一位
27 2 SID = CY; //移出的位給SID
28 2 SCK = 1;
29 2 SCK = 0;
30 2 }
31 1 }
32 //串口接收一個字節
33 //僅在讀取數據的時候用到
34 //而讀出的數據是一次只能讀出4bit的
35 unsigned char ReceiveByte(void)
36 {
37 1 unsigned char i,temp1,temp2;
38 1 temp1=temp2=0;
39 1 for(i=0;i<8;i++)
40 1 {
41 2 temp1=temp1<<1;
42 2 SCK = 0;
43 2 SCK = 1;
44 2 SCK = 0;
45 2 if(SID) temp1++;
46 2 }
47 1 for(i=0;i<8;i++)
48 1 {
49 2 temp2=temp2<<1;
50 2 SCK = 0;
51 2 SCK = 1;
52 2 SCK = 0;
53 2 if(SID) temp2++;
54 2 }
55 1 return ((0xf0&temp1)+(0x0f&temp2));
C51 COMPILER V8.02 LCD1 03/13/2008 15:50:32 PAGE 2
56 1 }
57 void CheckBusy( void )
58 { do SendByte(0xfc);
59 1 //11111,RW(1),RS(0),0
60 1 while(0x80&ReceiveByte()); //BF(.7)=1 Busy
61 1 }
62 void WriteCommand( unsigned char Cbyte )
63 {
64 1 CS = 1;
65 1 CheckBusy();
66 1 SendByte(0xf8); //11111,RW(0),RS(0),0
67 1 SendByte(0xf0&Cbyte); //高四位
68 1 SendByte(0xf0&Cbyte<<4);//低四位(先執行<<)
69 1 CS = 0;
70 1 }
71 void WriteData( unsigned char Dbyte )
72 {
73 1 CS = 1;
74 1 CheckBusy();
75 1 SendByte(0xfa); //11111,RW(0),RS(1),0
76 1 SendByte(0xf0&Dbyte); //高四位
77 1 SendByte(0xf0&Dbyte<<4);//低四位(先執行<<)
78 1 CS = 0;
79 1 }
80 unsigned char ReadData( void )
81 {
82 1 CheckBusy();
83 1 SendByte(0xfe); //11111,RW(1),RS(1),0
84 1 return ReceiveByte();
85 1 }
86 void Delay(unsigned int MS)
87 {
88 1 unsigned char us,usn;
89 1 while(MS!=0) //for 12M
90 1 {
91 2 usn = 2;
92 2 while(usn!=0)
93 2 {
94 3 us=0xf5;
95 3 while (us!=0){us--;};
96 3 usn--;
97 3 }
98 2 MS--;
99 2 }
100 1 }
101 //維捷登測試架專用延時函數
102 /*void Delay(unsigned int Second )
103 {
104 //輸入精確到0.1S,是用","
105 unsigned int i,j;
106 for(i=0;i<Second;i++)
107 for(j=180;j>0;j--);
108 } */
109 void LcmInit( void )
110 {
111 1 WriteCommand(0x30); //8BitMCU,基本指令集合
112 1 WriteCommand(0x03); //AC歸0,不改變DDRAM內容
113 1 WriteCommand(0x0C); //顯示ON,游標OFF,游標位反白OFF
114 1 WriteCommand(0x01); //清屏,AC歸0
115 1 WriteCommand(0x06); //寫入時,游標右移動
116 1 }
117 //文本區清RAM函數
C51 COMPILER V8.02 LCD1 03/13/2008 15:50:32 PAGE 3
118 void LcmClearTXT( void )
119 {
120 1 unsigned char i;
121 1 WriteCommand(0x30); //8BitMCU,基本指令集合
122 1 WriteCommand(0x80); //AC歸起始位
123 1 for(i=0;i<64;i++)
124 1 WriteData(0x20);
125 1 }
126 //圖形區和文本區顯示在兩個不同的RAM區
127 //圖形區清RAM函數
128 void LcmClearBMP( void )
129 {
130 1 unsigned char i,j;
131 1 WriteCommand(0x34); //8Bit擴充指令集,即使是36H也要寫兩次
132 1 WriteCommand(0x36); //繪圖ON,基本指令集里面36H不能開繪圖
133 1 for(i=0;i<32;i++) //12864實際為256x32
134 1 {
135 2 WriteCommand(0x80|i); //行位置
136 2 WriteCommand(0x80); //列位置
137 2 for(j=0;j<32;j++) //256/8=32 byte
138 2 WriteData(0);
139 2 }
140 1 }
141 void PutStr(unsigned char row,unsigned char col,unsigned char *puts)
142 {
143 1 WriteCommand(0x30); //8BitMCU,基本指令集合
144 1 WriteCommand(AC_TABLE[8*row+col]); //起始位置
145 1 while(*puts != '\0') //判斷字符串是否顯示完畢
146 1 {
147 2 if(col==8) //判斷換行
148 2 { //若不判斷,則自動從第一行到第三行
149 3 col=0;
150 3 row++;
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