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📄 液晶lcd1602_我心飞翔.htm

📁 这是一个基于ADuC开发的一个LCD液晶屏显示程序
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            style="COLOR: #000000">CLRBIT(LCD_PORT,E);   
            //E=0</SPAN></SPAN></SPAN></DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
style="COLOR: #000000">
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt"><BR>com=com&lt;&lt;4;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //低四位移到高四位</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">SETBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=1<BR>LCD_PORT&amp;=0X0f;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //清高四位<BR>LCD_PORT|=com&amp;0xf0;&nbsp;&nbsp; //写低四位</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">CLRBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=0</SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">}</SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">二、写数据函数<SPAN 
            style="COLOR: #ff0000">(四线模式数据要分两次写)</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <P align=left></P>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">void write_data(unsigned char 
            data)</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">{</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">delay_nus(16);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //delay</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">SETBIT(LCD_PORT,RS); 
            //RS=1</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">SETBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=1</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">LCD_PORT&amp;=0X0f;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //清高四位<BR>LCD_PORT|=com&amp;0xf0;&nbsp;&nbsp; 
            //写高四位</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">CLRBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=0</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <P align=left></P>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt"><BR>data=data&lt;&lt;4;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //低四位移到高四位</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">SETBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=1<BR>LCD_PORT&amp;=0X0f;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //清高四位<BR>LCD_PORT|=data&amp;0xf0;&nbsp;&nbsp; //写低四位</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"></SPAN></SPAN></SPAN><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">CLRBIT(LCD_PORT,E);&nbsp;&nbsp; 
            //E=0</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">}</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">三、初始化LCD1602函数</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">void 
            LCD_init(void)</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">{</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">LCD_DDR=0xff;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //设为输出</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">write_command(0x28); 
            //4位显示--对应功能设置指令<BR>write_command(0x0c); 
            //显示开--对应开关显示控制指令<BR>write_command(0x01); 
            //清屏--对应清屏指令</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">delay_nms(2);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //delay</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">}</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">四、写地址函数</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
style="COLOR: #000000">
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">
            <HR>
            </DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">要显示字符时要先输入显示字符地址，也就是告诉模块在哪里显示字符</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="COLOR: #ff4500">1602液晶内部显示地址</SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="COLOR: #ff4500"><IMG style="CURSOR: pointer" height=56 
            src="液晶LCD1602_我心飞翔.files/77597.2875082.jpg" width=300 
            resized="true"></SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><SPAN 
            style="COLOR: #000000">比如第二行第一个字符的地址是40H，那么是否直接写入40H就可以将光标定位在第二行第一个字符的位置呢？这样不行，因为写入显示地址时要求最高位D7恒定为高电平1所以实际写入的数据应该是01000000B（40H）＋10000000B（80H）＝11000000B（C0H）</SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">
            <HR>
            </DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">void 
            LCD_set_addr(unsigned char x,unsigned char y)//x:0~15,y:0~1</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">{</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">if(y) 
            write_command(0xc0+x);//第二行显示</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">else 
            write_command(0x80+x);//第一行显示</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">}</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">
            <HR>
            </DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">字符有：阿拉伯数字、英文字母的大小写、常用的符号、和日文假名等，每一个字符都有一个固定的代码，下图为<SPAN 
            style="COLOR: #ff4500">液晶模块内带标准字库</SPAN></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"><IMG 
            style="CURSOR: pointer; ZOOM: 180%" height=185 
            src="液晶LCD1602_我心飞翔.files/79426.8784335.gif" width=300 
            resized="true"></DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">比如大写的英文字母“A”的代码是01000001B（41H），显示时模块把地址41H中的点阵字符图形显示出来，我们就能看到字母“A”。</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">
            <HR>
            </DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">五、写字符函数</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">void 
            LCD_write_char(unsigned char X,unsigned char Y,</DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            unsigned char data) //列x=0~15,行y=0,1<BR>{<BR>LCD_set_addr( X, Y ); 
            //写地址<BR>write_data(data);<BR><BR>}</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">六、写字符串函数</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt">void 
            LCD_write_string(unsigned char X,unsigned char Y,</DIV>
            <DIV class=MsoNormal 
            style="MARGIN-LEFT: 18pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            unsigned char *s) //列x=0~15,行y=0,1<BR>{<BR>&nbsp;&nbsp;&nbsp; 
            LCD_set_addr( X, Y ); //写地址&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;&nbsp; 
            while (*s) // 写显示字符<BR>&nbsp;&nbsp;&nbsp; 
            {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; write_data( *s 
            );<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; s ++;<BR>&nbsp;&nbsp;&nbsp; 
            }<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR>}</DIV>
            <DIV class=MsoNormal style="MARGIN-LEFT: 18pt"></DIV>
            <DIV></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">void main(void)</SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">{</SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">LCD_init(); 
            //初始化LCD1602</SPAN></SPAN></SPAN></DIV>
            <DIV></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">//显示字母 a</SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">LCD_write_char(0,0,0b01100001);//a的字符由<SPAN 
            style="COLOR: #ff4500">标准字库<SPAN style="COLOR: #000000">可得为 
            01100001</SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN style="COLOR: #ff4500"><SPAN 
            style="COLOR: #000000">LCD_write_char(1,0,'a');&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            //效果和上面一样</SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN style="COLOR: #ff4500"><SPAN 
            style="COLOR: #000000">//显示hello</SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN style="COLOR: #ff4500"><SPAN 
            style="COLOR: #000000">LCD_write_string(0,1,"hello");</SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000">}</SPAN></SPAN></SPAN></DIV>
            <DIV></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN style="COLOR: #ff4500"><SPAN 
            style="COLOR: #000000">连接电路图：</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
            <DIV><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000; mso-bidi-font-size: 10.0pt"><SPAN 
            style="FONT-SIZE: 12pt; COLOR: #000000"><SPAN 
            style="COLOR: #000000"><SPAN style="COLOR: #ff4500"><SPAN 
            style="COLOR: #000000"><IMG style="CURSOR: pointer; ZOOM: 170%"
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