c51数组的使用.htm

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                  <P>LCM_RS = 1; LCM_RW = 1; LCM_E = 0; LCM_E = 0; LCM_E = 1; 
                  return(LCM_Data);</P>
                  <P>}</P>
                  <P>//读状态</P>
                  <P>unsigned char ReadStatusLCM(void)</P>
                  <P>{</P>
                  <P>LCM_Data = 0xFF; LCM_RS = 0; LCM_RW = 1; LCM_E = 0; LCM_E = 
                  0; LCM_E = 1;</P>
                  <P>while (LCM_Data &amp; Busy); //检测忙信号</P>
                  <P>return(LCM_Data);</P>
                  <P>}</P>
                  <P>void LCMInit(void) //LCM 初始化</P>
                  <P>{</P>
                  <P>LCM_Data = 0;</P>
                  <P>WriteCommandLCM(0x38,0); //三次显示模式设置，不检测忙信号</P>
                  <P>Delay5Ms(); WriteCommandLCM(0x38,0); Delay5Ms(); 
                  WriteCommandLCM(0x38,0); Delay5Ms();</P>
                  <P>WriteCommandLCM(0x38,1); //显示模式设置,开始要求每次检测忙信号</P>
                  <P>WriteCommandLCM(0x08,1); //关闭显示 WriteCommandLCM(0x01,1); 
                  //显示清屏 WriteCommandLCM(0x06,1); // &nbsp;显示光标移动设置 
                  WriteCommandLCM(0x0C,1); //&nbsp; 显示开及光标设置</P>
                  <P>}</P></DIV><BR style="PAGE-BREAK-BEFORE: auto" clear=all>
                  <DIV class=Section67>
                  <P>//按指定位置显示一个字符</P>
                  <P>void DisplayOneChar(unsigned char X, unsigned char Y, 
                  unsigned char DData)</P>
                  <P>{</P>
                  <P>Y &amp;= 0x1;</P>
                  <P>X &amp;= 0xF; //限制 X 不能大于 15，Y 不能大于 1</P>
                  <P>if (Y) X |= 0x40; //当要显示第二行时地址码+0x40; X |= 0x80; 
//算出指令码</P>
                  <P>WriteCommandLCM(X, 0); //这里不检测忙信号，发送地址码</P>
                  <P>WriteDataLCM(DData);</P>
                  <P>}</P>
                  <P>//按指定位置显示一串字符</P>
                  <P>void DisplayListChar(unsigned char X, unsigned char Y, 
                  unsigned char code *DData)</P>
                  <P>{</P>
                  <P>unsigned char ListLength;</P>
                  <P>ListLength = 0; Y &amp;= 0x1;</P>
                  <P>X &amp;= 0xF; //限制 X 不能大于 15，Y 不能大于 1</P>
                  <P>while (DData[ListLength]&gt;0x20) //若到达字串尾则退出</P>
                  <P>{</P>
                  <P>if (X &lt;= 0xF) //X 坐标应小于 0xF</P>
                  <P>{</P>
                  <P>DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符</P>
                  <P>ListLength++; X++;</P>
                  <P>}</P>
                  <P>}</P>
                  <P>}</P>
                  <P>//5ms 延时</P>
                  <P>void Delay5Ms(void)</P>
                  <P>{</P>
                  <P>unsigned int TempCyc = 5552;</P>
                  <P>while(TempCyc--);</P>
                  <P>}</P>
                  <P>//400ms 延时</P>
                  <P>void Delay400Ms(void)</P>
                  <P>{</P>
                  <P>unsigned char TempCycA = 5; unsigned int TempCycB; 
                  while(TempCycA--)</P>
                  <P>{</P>
                  <P>TempCycB=7269;</P></DIV><BR style="PAGE-BREAK-BEFORE: auto" 
                  clear=all>
                  <DIV class=Section68>
                  <P>while(TempCycB--);</P>
                  <P>};</P>
                  <P>}</P></DIV><BR><BR><!--推荐--></DIV></TD></TR></TBODY></TABLE></TD></TR>
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