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<H2>
Module P18_LCD</H2>
<HR>
<P>
This modules implements the needed functions to interface with an LC-Display. The Display needs to support 4-bit communication. The Four data bits has to be connected to the upper nibble of any port. The command lines may be distributed over all pins on all ports.
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<P>
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<P>
<!-- =========== CONSTANT SUMMARY =========== -->
<A NAME="constant_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constant Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> PORTA</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.RS.Port">LCD.RS.Port</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.RS.Pin">LCD.RS.Pin</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> PORTA</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.RW.Port">LCD.RW.Port</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 1</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.RW.Pin">LCD.RW.Pin</A></B></CODE>
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</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> PORTA</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.E.Port">LCD.E.Port</A></B></CODE>
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</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 2</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.E.Pin">LCD.E.Pin</A></B></CODE>
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</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> PORTD</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DATA">LCD.DATA</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> .20000</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.T_PowerUp">LCD.T_PowerUp</A></B></CODE>
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</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> .5000</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.T_Instruction">LCD.T_Instruction</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x01</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Clear_CMD">LCD.Clear_CMD</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x04</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.EntryMode_CMD">LCD.EntryMode_CMD</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x02</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.IncreaseCursor_BIT">LCD.IncreaseCursor_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x01</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.ShiftDisplay_BIT">LCD.ShiftDisplay_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x08</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Mode_CMD">LCD.Mode_CMD</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x04</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DisplayOn_BIT">LCD.DisplayOn_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x02</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.CursorOn_BIT">LCD.CursorOn_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x01</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.BlinkingOn_BIT">LCD.BlinkingOn_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x10</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Shift_CMD">LCD.Shift_CMD</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x08</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DisplayShift_BIT">LCD.DisplayShift_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x04</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.ShiftRight_BIT">LCD.ShiftRight_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x20</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Function_CMD">LCD.Function_CMD</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x10</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.EightBit_BIT">LCD.EightBit_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x08</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.TwoLines_BIT">LCD.TwoLines_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x04</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.X5Y10_BIT">LCD.X5Y10_BIT</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x80</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.SetCursor_CMD">LCD.SetCursor_CMD</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x00</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Line0_ADR">LCD.Line0_ADR</A></B></CODE>
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</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> 0x40</CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Line1_ADR">LCD.Line1_ADR</A></B></CODE>
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</TD>
</TR>
</TABLE>
<P>
<!-- =========== FIELD SUMMARY =========== -->
<A NAME="field_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Field Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> </CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Buffer.Line0">LCD.Buffer.Line0</A></B></CODE>
<BR>
This is the off screen buffer for the first line of the LCD, it is 17 bytes long.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> </CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Buffer.Line1">LCD.Buffer.Line1</A></B></CODE>
<BR>
This is the off screen buffer for the second line of the LCD, it is 17 bytes long.</TD>
</TR>
</TABLE>
<P>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Function Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Init">LCD.Init</A></B>()</CODE>
<BR>
This function initializes the LCD.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.SendCMDNoBusy">LCD.SendCMDNoBusy</A></B>( w )</CODE>
<BR>
This function sends a command (4-bit mode) to the LCD without checking the LCDs BusyFlag.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.SendCMD">LCD.SendCMD</A></B>( w )</CODE>
<BR>
This function sends a command to the LCD.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DrawChar">LCD.DrawChar</A></B>( w )</CODE>
<BR>
This function sends a char to the LCD at the current cursor position.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DrawString">LCD.DrawString</A></B>( FSR2 )</CODE>
<BR>
This function sends a string to the LCD beginning at the current cursor position.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.DrawBuffer">LCD.DrawBuffer</A></B>()</CODE>
<BR>
This function draws the LCD.Buffer on the LCD.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.BUSY_CHECK">LCD.BUSY_CHECK</A></B>()</CODE>
<BR>
This function waits for the LCD module accepting further instructions.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.SetLine0">LCD.SetLine0</A></B>()</CODE>
<BR>
This function set the cursor to the first line.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.SetLine1">LCD.SetLine1</A></B>()</CODE>
<BR>
This function set the cursor to the second line.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE></CODE></FONT></TD>
<TD><CODE><B><A HREF="P18_LCD.html#LCD.Clear">LCD.Clear</A></B>()</CODE>
<BR>
This function clears the LCD.</TD>
</TR>
</TABLE>
<P>
<!-- ============ CONSTANT DETAIL =========== -->
<A NAME="constant_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constant Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="LCD.RS.Port"></A><H3>
LCD.RS.Port</H3>
<DL>
<DD> The port the RS-pin is connected to. The RS-pin selects whether to write to the data memory or to execute an instruction.<BR><BR> You may override the default value by either defining the same constant in your Project.inc file or by changing the default value in the module's source.<BR><BR>Default value = PORTA
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="LCD.RS.Pin"></A><H3>
LCD.RS.Pin</H3>
<DL>
<DD> The number of the pin, the RS-pin is connected to. The RS-pin selects whether to write to the data memory or to execute an instruction.<BR><BR> You may override the default value by either defining the same constant in your Project.inc file or by changing the default value in the module's source.<BR><BR>Default value = 0
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="LCD.RW.Port"></A><H3>
LCD.RW.Port</H3>
<DL>
<DD> The port the RW-pin is connected to. The RS-pin selects whether to write or to read from the LCD.<BR><BR> You may override the default value by either defining the same constant in your Project.inc file or by changing the default value in the module's source.<BR><BR>Default value = PORTA
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="LCD.RW.Pin"></A><H3>
LCD.RW.Pin</H3>
<DL>
<DD> The port the RW-pin is connected to. The RS-pin selects whether to write or to read from the LCD.<BR><BR>⌨️ 快捷键说明
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