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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
+<title>AVR-GCC libraries: LCD library</title>
+<link href="doxygen.css" rel="stylesheet" type="text/css">
+<link href="tabs.css" rel="stylesheet" type="text/css">
+</head><body>
+<!-- Generated by Doxygen 1.4.5 -->
+<h1>LCD library</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
+Basic routines for interfacing a HD44780U-based text LCD display.
+<p>
+<div class="fragment"><pre class="fragment"><span class="preprocessor"> #include <lcd.h></span>
+</pre></div><p>
+Originally based on Volker Oth's LCD library, changed <a class="el" href="group__pfleury__lcd.html#gedadae82796028f0eb4877c2633a2093">lcd_init()</a>, added additional constants for <a class="el" href="group__pfleury__lcd.html#gc6aa7e0d522b4c013ebeae1ccd23d510">lcd_command()</a>, added 4-bit I/O mode, improved and optimized code.<p>
+Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.<p>
+Memory mapped mode compatible with Kanda STK200, but supports also generation of R/W signal through A8 address line.<p>
+<dl compact><dt><b>Author:</b></dt><dd>Peter Fleury <a href="mailto:pfleury@gmx.ch">pfleury@gmx.ch</a> <a href="http://jump.to/fleury">http://jump.to/fleury</a></dd></dl>
+<dl compact><dt><b>See also:</b></dt><dd>The chapter <a href="http://homepage.sunrise.ch/mysunrise/peterfleury/avr-lcd44780.html" target="_blank">Interfacing a HD44780 Based LCD to an AVR</a> on my home page. </dd></dl>
+
+<p>
+<table border="0" cellpadding="0" cellspacing="0">
+<tr><td></td></tr>
+<tr><td colspan="2"><br><h2>Definitions for MCU Clock Frequency</h2></td></tr>
+<tr><td colspan="2">Adapt the MCU clock frequency in Hz to your target. <br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gec4e68f6eb4f2cd1a3d52a391e97a48e">XTAL</a> 4000000</td></tr>
+
+<tr><td colspan="2"><br><h2>Definition for LCD controller type</h2></td></tr>
+<tr><td colspan="2">Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller. <br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#ga06e40df758f5c4ef912269bada3e02e">LCD_CONTROLLER_KS0073</a> 0</td></tr>
+
+<tr><td colspan="2"><br><h2>Definitions for Display Size</h2></td></tr>
+<tr><td colspan="2">Change these definitions to adapt setting to your display <br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gdd844875f979e4be3fe10f6157fb1000">LCD_LINES</a> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gf43f4243eab72a4f63404ef79c4628b4">LCD_DISP_LENGTH</a> 16</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g9c510a31cc0da22f1ed6796c182e5ae9">LCD_LINE_LENGTH</a> 0x40</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g0f8269b98efeb53a53e31ad5b2671e60">LCD_START_LINE1</a> 0x00</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g41302f6ca93d24281422eb6b21d29ead">LCD_START_LINE2</a> 0x40</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g71379f62a63fec1d3548572efb619b25">LCD_START_LINE3</a> 0x14</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g73e09d62eefad16f08b66ee39e9c2a92">LCD_START_LINE4</a> 0x54</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g9edda67caf57a323972fa8442863dd5f">LCD_WRAP_LINES</a> 0</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g03ce9159a9bc9263b65926df0e542769">LCD_IO_MODE</a> 1</td></tr>
+
+<tr><td colspan="2"><br><h2>Definitions for 4-bit IO mode</h2></td></tr>
+<tr><td colspan="2">Change LCD_PORT if you want to use a different port for the LCD pins.<p>
+The four LCD data lines and the three control lines RS, RW, E can be on the same port or on different ports. Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on different ports.<p>
+Normally the four data lines should be mapped to bit 0..3 on one port, but it is possible to connect these data lines in different order or even on different ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions. <br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#ge794cd77f52c76793895fb9f0ddde790">LCD_PORT</a> PORTA</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gea0b0c8e6f06c7978b062f9b64c65b17">LCD_DATA0_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g4804194d2e51913e96a18540ecc37438">LCD_DATA1_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g457dfaa137d806b907824c5addff463b">LCD_DATA2_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gb83bd18a43ac793d7f83251664b76102">LCD_DATA3_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g1bd9e368dd03e4e4022e2fe4349b4a89">LCD_DATA0_PIN</a> 0</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gc22ea9521de145ada64c9ac4a24a0d57">LCD_DATA1_PIN</a> 1</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gef2c79ad5069e1dbcf99129953fef99f">LCD_DATA2_PIN</a> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g2b7c15d3b71de014dffbed911999e93e">LCD_DATA3_PIN</a> 3</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gfa2314e7d8033e0aca5769380a3e50d0">LCD_RS_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g59c1b674dce414b68c455f1ac2b4b6fc">LCD_RS_PIN</a> 4</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gd73977cd6182ec6efadc7798792a65f5">LCD_RW_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g8ab664d4eccaeb33a3cad2ae59c04f8c">LCD_RW_PIN</a> 5</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g0e04d67ce381ed95c8589838110c1654">LCD_E_PORT</a> LCD_PORT</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gb3c58eb57ae653b281826d6e694d9be6">LCD_E_PIN</a> 6</td></tr>
+
+<tr><td colspan="2"><br><h2>Definitions for LCD command instructions</h2></td></tr>
+<tr><td colspan="2">The constants define the various LCD controller instructions which can be passed to the function <a class="el" href="group__pfleury__lcd.html#gc6aa7e0d522b4c013ebeae1ccd23d510">lcd_command()</a>, see HD44780 data sheet for a complete description. <br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb6c0647d4002249e52055ce4a5e1b6e2"></a><!-- doxytag: member="pfleury_lcd::LCD_CLR" ref="gb6c0647d4002249e52055ce4a5e1b6e2" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_CLR</b> 0</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6ad700e4d3900d4feb8238bfc479834c"></a><!-- doxytag: member="pfleury_lcd::LCD_HOME" ref="g6ad700e4d3900d4feb8238bfc479834c" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_HOME</b> 1</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g93ccf8edc829179b43b6eeacc66b1bb4"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_MODE" ref="g93ccf8edc829179b43b6eeacc66b1bb4" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_MODE</b> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9e4e5cb2b07761ade7cd43505209663a"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_INC" ref="g9e4e5cb2b07761ade7cd43505209663a" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_INC</b> 1</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8b0e6ed593e7541f4166c1a906b95582"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_SHIFT" ref="g8b0e6ed593e7541f4166c1a906b95582" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_SHIFT</b> 0</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gdfb5192d28256bba56eab1ca052b744f"></a><!-- doxytag: member="pfleury_lcd::LCD_ON" ref="gdfb5192d28256bba56eab1ca052b744f" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ON</b> 3</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g31e7b1de3a2d43284c580be46120d796"></a><!-- doxytag: member="pfleury_lcd::LCD_ON_DISPLAY" ref="g31e7b1de3a2d43284c580be46120d796" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ON_DISPLAY</b> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g5e026efe1f4b830b1b300a3c2c84d8f5"></a><!-- doxytag: member="pfleury_lcd::LCD_ON_CURSOR" ref="g5e026efe1f4b830b1b300a3c2c84d8f5" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ON_CURSOR</b> 1</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gdb8db7b10a3d88b3ed3a751ec12f1eca"></a><!-- doxytag: member="pfleury_lcd::LCD_ON_BLINK" ref="gdb8db7b10a3d88b3ed3a751ec12f1eca" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ON_BLINK</b> 0</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf252c05493bd664537aaa51bf87814ec"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE" ref="gf252c05493bd664537aaa51bf87814ec" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE</b> 4</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g20ea24786f22d84ba9c55554656906c5"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_DISP" ref="g20ea24786f22d84ba9c55554656906c5" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_DISP</b> 3</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1ab47ab95dd06eaccf3e9e86af71c3ac"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_RIGHT" ref="g1ab47ab95dd06eaccf3e9e86af71c3ac" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_RIGHT</b> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g0dccc76f0fdb0ca0e92a27957be7508a"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION" ref="g0dccc76f0fdb0ca0e92a27957be7508a" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION</b> 5</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g53db2a601db03c8f1744ef409de195e3"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_8BIT" ref="g53db2a601db03c8f1744ef409de195e3" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_8BIT</b> 4</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9df9d601b91e8dd1c8e32cc0502fa18d"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_2LINES" ref="g9df9d601b91e8dd1c8e32cc0502fa18d" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_2LINES</b> 3</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g24097bc7d02a539b90143681a1d8f75b"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_10DOTS" ref="g24097bc7d02a539b90143681a1d8f75b" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_10DOTS</b> 2</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge5fa6d906e12c59745a752025562f10f"></a><!-- doxytag: member="pfleury_lcd::LCD_CGRAM" ref="ge5fa6d906e12c59745a752025562f10f" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_CGRAM</b> 6</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8151d4f3782bf89da0c02763a5338b17"></a><!-- doxytag: member="pfleury_lcd::LCD_DDRAM" ref="g8151d4f3782bf89da0c02763a5338b17" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DDRAM</b> 7</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g49711195a2017d6c172207b062c7b73e"></a><!-- doxytag: member="pfleury_lcd::LCD_BUSY" ref="g49711195a2017d6c172207b062c7b73e" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_BUSY</b> 7</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g0218e18af67bef527a29f1cdacf6ed23"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_DEC" ref="g0218e18af67bef527a29f1cdacf6ed23" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_DEC</b> 0x04</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g11b45d9f793a2140fd0ee4fce7a0ee22"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_DEC_SHIFT" ref="g11b45d9f793a2140fd0ee4fce7a0ee22" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_DEC_SHIFT</b> 0x05</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge3aa1687fedc3b8bc430b4cd62c2b65f"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_INC_" ref="ge3aa1687fedc3b8bc430b4cd62c2b65f" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_INC_</b> 0x06</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7bea23e46d4d98baa5a6a6025f42b6a4"></a><!-- doxytag: member="pfleury_lcd::LCD_ENTRY_INC_SHIFT" ref="g7bea23e46d4d98baa5a6a6025f42b6a4" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_ENTRY_INC_SHIFT</b> 0x07</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g70be76fe01084c867429994240faa1f6"></a><!-- doxytag: member="pfleury_lcd::LCD_DISP_OFF" ref="g70be76fe01084c867429994240faa1f6" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DISP_OFF</b> 0x08</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf0363f2f2b78a61362f26ffa36082185"></a><!-- doxytag: member="pfleury_lcd::LCD_DISP_ON" ref="gf0363f2f2b78a61362f26ffa36082185" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DISP_ON</b> 0x0C</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6b85df16a93c2d89f1710b143a868396"></a><!-- doxytag: member="pfleury_lcd::LCD_DISP_ON_BLINK" ref="g6b85df16a93c2d89f1710b143a868396" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DISP_ON_BLINK</b> 0x0D</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge6fa09e0ec80308708e64a47b6e280d2"></a><!-- doxytag: member="pfleury_lcd::LCD_DISP_ON_CURSOR" ref="ge6fa09e0ec80308708e64a47b6e280d2" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DISP_ON_CURSOR</b> 0x0E</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3780da6ba5a65681b1387aa848cffa55"></a><!-- doxytag: member="pfleury_lcd::LCD_DISP_ON_CURSOR_BLINK" ref="g3780da6ba5a65681b1387aa848cffa55" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_DISP_ON_CURSOR_BLINK</b> 0x0F</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gfe51acc36fd10fa81e99decbba5bb43e"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_CURSOR_LEFT" ref="gfe51acc36fd10fa81e99decbba5bb43e" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_CURSOR_LEFT</b> 0x10</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf06593b9d62c0a089da3be7ece318924"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_CURSOR_RIGHT" ref="gf06593b9d62c0a089da3be7ece318924" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_CURSOR_RIGHT</b> 0x14</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g31f91b811a964c619651d3411a8d3d06"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_DISP_LEFT" ref="g31f91b811a964c619651d3411a8d3d06" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_DISP_LEFT</b> 0x18</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g938816ca2abf6e8dc905ac68f14519f3"></a><!-- doxytag: member="pfleury_lcd::LCD_MOVE_DISP_RIGHT" ref="g938816ca2abf6e8dc905ac68f14519f3" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MOVE_DISP_RIGHT</b> 0x1C</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gc125eb9d5126f90422ea742d8734e4f8"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_4BIT_1LINE" ref="gc125eb9d5126f90422ea742d8734e4f8" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_4BIT_1LINE</b> 0x20</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2d2e1f64c83dba34822c089cd819634d"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_4BIT_2LINES" ref="g2d2e1f64c83dba34822c089cd819634d" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_4BIT_2LINES</b> 0x28</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8a2a4b7457b1677bbc12d4f182f5ee62"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_8BIT_1LINE" ref="g8a2a4b7457b1677bbc12d4f182f5ee62" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_8BIT_1LINE</b> 0x30</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g13ba9324b1abe30dcbadf52ee33e1e12"></a><!-- doxytag: member="pfleury_lcd::LCD_FUNCTION_8BIT_2LINES" ref="g13ba9324b1abe30dcbadf52ee33e1e12" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_FUNCTION_8BIT_2LINES</b> 0x38</td></tr>
+
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2bc1f4b4aa9d922621728695154608e8"></a><!-- doxytag: member="pfleury_lcd::LCD_MODE_DEFAULT" ref="g2bc1f4b4aa9d922621728695154608e8" args="" -->
+#define </td><td class="memItemRight" valign="bottom"><b>LCD_MODE_DEFAULT</b> ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )</td></tr>
+
+<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd33c0d74b983e3f2c36f3278a462be15"></a><!-- doxytag: member="pfleury_lcd::lcd_puts_P" ref="gd33c0d74b983e3f2c36f3278a462be15" args="(__s)" -->
+#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gd33c0d74b983e3f2c36f3278a462be15">lcd_puts_P</a>(__s) lcd_puts_p(PSTR(__s))</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">macros for automatically storing string constant in program memory <br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gedadae82796028f0eb4877c2633a2093">lcd_init</a> (uint8_t dispAttr)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize display and select type of cursor. <a href="#gedadae82796028f0eb4877c2633a2093"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g8ce9a86fc5c8256c69bd46bf3400db82">lcd_clrscr</a> (void)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Clear display and set cursor to home position. <a href="#g8ce9a86fc5c8256c69bd46bf3400db82"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#ge8c9b2ccaad9f50e5470c0884d34b60e">lcd_home</a> (void)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Set cursor to home position. <a href="#ge8c9b2ccaad9f50e5470c0884d34b60e"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g73662ce31ffdf2949971f47d61fbf67f">lcd_gotoxy</a> (uint8_t x, uint8_t y)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Set cursor to specified position. <a href="#g73662ce31ffdf2949971f47d61fbf67f"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g38d1e9ef5cebc368b96f5a3173b1a8a6">lcd_putc</a> (char c)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Display character at current cursor position. <a href="#g38d1e9ef5cebc368b96f5a3173b1a8a6"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g72e72f6b31f53d9ceb9246286223599a">lcd_puts</a> (const char *s)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Display string without auto linefeed. <a href="#g72e72f6b31f53d9ceb9246286223599a"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gd7760569f1a160fca1a29af711cab47b">lcd_puts_p</a> (const char *progmem_s)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Display string from program memory without auto linefeed. <a href="#gd7760569f1a160fca1a29af711cab47b"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#gc6aa7e0d522b4c013ebeae1ccd23d510">lcd_command</a> (uint8_t cmd)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Send LCD controller instruction command. <a href="#gc6aa7e0d522b4c013ebeae1ccd23d510"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pfleury__lcd.html#g5558061811c21afc4fe3992a45e43844">lcd_data</a> (uint8_t data)</td></tr>
+
+<tr><td class="mdescLeft"> </td><td class="mdescRight">Send data byte to LCD controller. <a href="#g5558061811c21afc4fe3992a45e43844"></a><br></td></tr>
+</table>
+<hr><h2>Define Documentation</h2>
+<a class="anchor" name="gec4e68f6eb4f2cd1a3d52a391e97a48e"></a><!-- doxytag: member="lcd.h::XTAL" ref="gec4e68f6eb4f2cd1a3d52a391e97a48e" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define XTAL 4000000 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+clock frequency in Hz, used to calculate delay timer </td>
+ </tr>
+</table>
+<a class="anchor" name="ga06e40df758f5c4ef912269bada3e02e"></a><!-- doxytag: member="lcd.h::LCD_CONTROLLER_KS0073" ref="ga06e40df758f5c4ef912269bada3e02e" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_CONTROLLER_KS0073 0 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Use 0 for HD44780 controller, 1 for KS0073 controller </td>
+ </tr>
+</table>
+<a class="anchor" name="gdd844875f979e4be3fe10f6157fb1000"></a><!-- doxytag: member="lcd.h::LCD_LINES" ref="gdd844875f979e4be3fe10f6157fb1000" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_LINES 2 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+number of visible lines of the display </td>
+ </tr>
+</table>
+<a class="anchor" name="gf43f4243eab72a4f63404ef79c4628b4"></a><!-- doxytag: member="lcd.h::LCD_DISP_LENGTH" ref="gf43f4243eab72a4f63404ef79c4628b4" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DISP_LENGTH 16 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+visibles characters per line of the display </td>
+ </tr>
+</table>
+<a class="anchor" name="g9c510a31cc0da22f1ed6796c182e5ae9"></a><!-- doxytag: member="lcd.h::LCD_LINE_LENGTH" ref="g9c510a31cc0da22f1ed6796c182e5ae9" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_LINE_LENGTH 0x40 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+internal line length of the display </td>
+ </tr>
+</table>
+<a class="anchor" name="g0f8269b98efeb53a53e31ad5b2671e60"></a><!-- doxytag: member="lcd.h::LCD_START_LINE1" ref="g0f8269b98efeb53a53e31ad5b2671e60" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_START_LINE1 0x00 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+DDRAM address of first char of line 1 </td>
+ </tr>
+</table>
+<a class="anchor" name="g41302f6ca93d24281422eb6b21d29ead"></a><!-- doxytag: member="lcd.h::LCD_START_LINE2" ref="g41302f6ca93d24281422eb6b21d29ead" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_START_LINE2 0x40 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+DDRAM address of first char of line 2 </td>
+ </tr>
+</table>
+<a class="anchor" name="g71379f62a63fec1d3548572efb619b25"></a><!-- doxytag: member="lcd.h::LCD_START_LINE3" ref="g71379f62a63fec1d3548572efb619b25" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_START_LINE3 0x14 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+DDRAM address of first char of line 3 </td>
+ </tr>
+</table>
+<a class="anchor" name="g73e09d62eefad16f08b66ee39e9c2a92"></a><!-- doxytag: member="lcd.h::LCD_START_LINE4" ref="g73e09d62eefad16f08b66ee39e9c2a92" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_START_LINE4 0x54 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+DDRAM address of first char of line 4 </td>
+ </tr>
+</table>
+<a class="anchor" name="g9edda67caf57a323972fa8442863dd5f"></a><!-- doxytag: member="lcd.h::LCD_WRAP_LINES" ref="g9edda67caf57a323972fa8442863dd5f" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_WRAP_LINES 0 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+0: no wrap, 1: wrap at end of visibile line </td>
+ </tr>
+</table>
+<a class="anchor" name="g03ce9159a9bc9263b65926df0e542769"></a><!-- doxytag: member="lcd.h::LCD_IO_MODE" ref="g03ce9159a9bc9263b65926df0e542769" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_IO_MODE 1 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+0: memory mapped mode, 1: IO port mode </td>
+ </tr>
+</table>
+<a class="anchor" name="ge794cd77f52c76793895fb9f0ddde790"></a><!-- doxytag: member="lcd.h::LCD_PORT" ref="ge794cd77f52c76793895fb9f0ddde790" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_PORT PORTA </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for the LCD lines </td>
+ </tr>
+</table>
+<a class="anchor" name="gea0b0c8e6f06c7978b062f9b64c65b17"></a><!-- doxytag: member="lcd.h::LCD_DATA0_PORT" ref="gea0b0c8e6f06c7978b062f9b64c65b17" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA0_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for 4bit data bit 0 </td>
+ </tr>
+</table>
+<a class="anchor" name="g4804194d2e51913e96a18540ecc37438"></a><!-- doxytag: member="lcd.h::LCD_DATA1_PORT" ref="g4804194d2e51913e96a18540ecc37438" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA1_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for 4bit data bit 1 </td>
+ </tr>
+</table>
+<a class="anchor" name="g457dfaa137d806b907824c5addff463b"></a><!-- doxytag: member="lcd.h::LCD_DATA2_PORT" ref="g457dfaa137d806b907824c5addff463b" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA2_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for 4bit data bit 2 </td>
+ </tr>
+</table>
+<a class="anchor" name="gb83bd18a43ac793d7f83251664b76102"></a><!-- doxytag: member="lcd.h::LCD_DATA3_PORT" ref="gb83bd18a43ac793d7f83251664b76102" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA3_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for 4bit data bit 3 </td>
+ </tr>
+</table>
+<a class="anchor" name="g1bd9e368dd03e4e4022e2fe4349b4a89"></a><!-- doxytag: member="lcd.h::LCD_DATA0_PIN" ref="g1bd9e368dd03e4e4022e2fe4349b4a89" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA0_PIN 0 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for 4bit data bit 0 </td>
+ </tr>
+</table>
+<a class="anchor" name="gc22ea9521de145ada64c9ac4a24a0d57"></a><!-- doxytag: member="lcd.h::LCD_DATA1_PIN" ref="gc22ea9521de145ada64c9ac4a24a0d57" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA1_PIN 1 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for 4bit data bit 1 </td>
+ </tr>
+</table>
+<a class="anchor" name="gef2c79ad5069e1dbcf99129953fef99f"></a><!-- doxytag: member="lcd.h::LCD_DATA2_PIN" ref="gef2c79ad5069e1dbcf99129953fef99f" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA2_PIN 2 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for 4bit data bit 2 </td>
+ </tr>
+</table>
+<a class="anchor" name="g2b7c15d3b71de014dffbed911999e93e"></a><!-- doxytag: member="lcd.h::LCD_DATA3_PIN" ref="g2b7c15d3b71de014dffbed911999e93e" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_DATA3_PIN 3 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for 4bit data bit 3 </td>
+ </tr>
+</table>
+<a class="anchor" name="gfa2314e7d8033e0aca5769380a3e50d0"></a><!-- doxytag: member="lcd.h::LCD_RS_PORT" ref="gfa2314e7d8033e0aca5769380a3e50d0" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_RS_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for RS line </td>
+ </tr>
+</table>
+<a class="anchor" name="g59c1b674dce414b68c455f1ac2b4b6fc"></a><!-- doxytag: member="lcd.h::LCD_RS_PIN" ref="g59c1b674dce414b68c455f1ac2b4b6fc" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_RS_PIN 4 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for RS line </td>
+ </tr>
+</table>
+<a class="anchor" name="gd73977cd6182ec6efadc7798792a65f5"></a><!-- doxytag: member="lcd.h::LCD_RW_PORT" ref="gd73977cd6182ec6efadc7798792a65f5" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_RW_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for RW line </td>
+ </tr>
+</table>
+<a class="anchor" name="g8ab664d4eccaeb33a3cad2ae59c04f8c"></a><!-- doxytag: member="lcd.h::LCD_RW_PIN" ref="g8ab664d4eccaeb33a3cad2ae59c04f8c" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_RW_PIN 5 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for RW line </td>
+ </tr>
+</table>
+<a class="anchor" name="g0e04d67ce381ed95c8589838110c1654"></a><!-- doxytag: member="lcd.h::LCD_E_PORT" ref="g0e04d67ce381ed95c8589838110c1654" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_E_PORT LCD_PORT </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+port for Enable line </td>
+ </tr>
+</table>
+<a class="anchor" name="gb3c58eb57ae653b281826d6e694d9be6"></a><!-- doxytag: member="lcd.h::LCD_E_PIN" ref="gb3c58eb57ae653b281826d6e694d9be6" args="" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">#define LCD_E_PIN 6 </td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+pin for Enable line </td>
+ </tr>
+</table>
+<hr><h2>Function Documentation</h2>
+<a class="anchor" name="gedadae82796028f0eb4877c2633a2093"></a><!-- doxytag: member="lcd.h::lcd_init" ref="gedadae82796028f0eb4877c2633a2093" args="(uint8_t dispAttr)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_init </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">uint8_t </td>
+ <td class="mdname1" valign="top" nowrap> <em>dispAttr</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Initialize display and select type of cursor.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>dispAttr</em> </td><td><b>LCD_DISP_OFF</b> display off<br>
+ <b>LCD_DISP_ON</b> display on, cursor off<br>
+ <b>LCD_DISP_ON_CURSOR</b> display on, cursor on<br>
+ <b>LCD_DISP_ON_CURSOR_BLINK</b> display on, cursor on flashing </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="g8ce9a86fc5c8256c69bd46bf3400db82"></a><!-- doxytag: member="lcd.h::lcd_clrscr" ref="g8ce9a86fc5c8256c69bd46bf3400db82" args="(void)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_clrscr </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">void </td>
+ <td class="mdname1" valign="top" nowrap> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Clear display and set cursor to home position.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>void</em> </td><td></td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="ge8c9b2ccaad9f50e5470c0884d34b60e"></a><!-- doxytag: member="lcd.h::lcd_home" ref="ge8c9b2ccaad9f50e5470c0884d34b60e" args="(void)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_home </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">void </td>
+ <td class="mdname1" valign="top" nowrap> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Set cursor to home position.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>void</em> </td><td></td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="g73662ce31ffdf2949971f47d61fbf67f"></a><!-- doxytag: member="lcd.h::lcd_gotoxy" ref="g73662ce31ffdf2949971f47d61fbf67f" args="(uint8_t x, uint8_t y)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_gotoxy </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">uint8_t </td>
+ <td class="mdname" nowrap> <em>x</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td class="md"></td>
+ <td class="md" nowrap>uint8_t </td>
+ <td class="mdname" nowrap> <em>y</em></td>
+ </tr>
+ <tr>
+ <td class="md"></td>
+ <td class="md">) </td>
+ <td class="md" colspan="2"></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Set cursor to specified position.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>x</em> </td><td>horizontal position<br>
+ (0: left most position) </td></tr>
+ <tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>vertical position<br>
+ (0: first line) </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="g38d1e9ef5cebc368b96f5a3173b1a8a6"></a><!-- doxytag: member="lcd.h::lcd_putc" ref="g38d1e9ef5cebc368b96f5a3173b1a8a6" args="(char c)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_putc </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">char </td>
+ <td class="mdname1" valign="top" nowrap> <em>c</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Display character at current cursor position.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>c</em> </td><td>character to be displayed </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="g72e72f6b31f53d9ceb9246286223599a"></a><!-- doxytag: member="lcd.h::lcd_puts" ref="g72e72f6b31f53d9ceb9246286223599a" args="(const char *s)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_puts </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">const char * </td>
+ <td class="mdname1" valign="top" nowrap> <em>s</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Display string without auto linefeed.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>string to be displayed </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="gd7760569f1a160fca1a29af711cab47b"></a><!-- doxytag: member="lcd.h::lcd_puts_p" ref="gd7760569f1a160fca1a29af711cab47b" args="(const char *progmem_s)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_puts_p </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">const char * </td>
+ <td class="mdname1" valign="top" nowrap> <em>progmem_s</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Display string from program memory without auto linefeed.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>string from program memory be be displayed </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__pfleury__lcd.html#gd33c0d74b983e3f2c36f3278a462be15">lcd_puts_P</a> </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="gc6aa7e0d522b4c013ebeae1ccd23d510"></a><!-- doxytag: member="lcd.h::lcd_command" ref="gc6aa7e0d522b4c013ebeae1ccd23d510" args="(uint8_t cmd)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_command </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">uint8_t </td>
+ <td class="mdname1" valign="top" nowrap> <em>cmd</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Send LCD controller instruction command.
+<p>
+<dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>cmd</em> </td><td>instruction to send to LCD controller, see HD44780 data sheet </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<a class="anchor" name="g5558061811c21afc4fe3992a45e43844"></a><!-- doxytag: member="lcd.h::lcd_data" ref="g5558061811c21afc4fe3992a45e43844" args="(uint8_t data)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" nowrap valign="top">void lcd_data </td>
+ <td class="md" valign="top">( </td>
+ <td class="md" nowrap valign="top">uint8_t </td>
+ <td class="mdname1" valign="top" nowrap> <em>data</em> </td>
+ <td class="md" valign="top"> ) </td>
+ <td class="md" nowrap></td>
+ </tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+ <tr>
+ <td>
+
+ </td>
+ <td>
+
+<p>
+Send data byte to LCD controller.
+<p>
+Similar to <a class="el" href="group__pfleury__lcd.html#g38d1e9ef5cebc368b96f5a3173b1a8a6">lcd_putc()</a>, but without interpreting LF <dl compact><dt><b>Parameters:</b></dt><dd>
+ <table border="0" cellspacing="2" cellpadding="0">
+ <tr><td valign="top"></td><td valign="top"><em>data</em> </td><td>byte to send to LCD controller, see HD44780 data sheet </td></tr>
+ </table>
+</dl>
+<dl compact><dt><b>Returns:</b></dt><dd>none </dd></dl>
+ </td>
+ </tr>
+</table>
+<hr size="1"><address style="align: right;"><small>Generated on Mon Jan 30 20:50:15 2006 for AVR-GCC libraries by
+<a href="http://www.doxygen.org/index.html">
+<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address>
+</body>
+</html>
--- /dev/null
+/****************************************************************************\r
+ Title : HD44780U LCD library\r
+ Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury\r
+ File: $Id: lcd.c,v 1.14.2.1 2006/01/29 12:16:41 peter Exp $\r
+ Software: AVR-GCC 3.3 \r
+ Target: any AVR device, memory mapped mode only for AT90S4414/8515/Mega\r
+\r
+ DESCRIPTION\r
+ Basic routines for interfacing a HD44780U-based text lcd display\r
+\r
+ Originally based on Volker Oth's lcd library,\r
+ changed lcd_init(), added additional constants for lcd_command(),\r
+ added 4-bit I/O mode, improved and optimized code.\r
+\r
+ Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in \r
+ 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.\r
+ \r
+ Memory mapped mode compatible with Kanda STK200, but supports also\r
+ generation of R/W signal through A8 address line.\r
+\r
+ USAGE\r
+ See the C include lcd.h file for a description of each function\r
+ \r
+*****************************************************************************/\r
+#include <inttypes.h>\r
+#include <avr/io.h>\r
+#include <avr/pgmspace.h>\r
+#include "lcd.h"\r
+\r
+\r
+\r
+/* \r
+** constants/macros \r
+*/\r
+#define DDR(x) (*(&x - 1)) /* address of data direction register of port x */\r
+#if defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)\r
+ /* on ATmega64/128 PINF is on port 0x00 and not 0x60 */\r
+ #define PIN(x) ( &PORTF==&(x) ? _SFR_IO8(0x00) : (*(&x - 2)) )\r
+#else\r
+ #define PIN(x) (*(&x - 2)) /* address of input register of port x */\r
+#endif\r
+\r
+\r
+#if LCD_IO_MODE\r
+#define lcd_e_delay() __asm__ __volatile__( "rjmp 1f\n 1:" );\r
+#define lcd_e_high() LCD_E_PORT |= _BV(LCD_E_PIN);\r
+#define lcd_e_low() LCD_E_PORT &= ~_BV(LCD_E_PIN);\r
+#define lcd_e_toggle() toggle_e()\r
+#define lcd_rw_high() LCD_RW_PORT |= _BV(LCD_RW_PIN)\r
+#define lcd_rw_low() LCD_RW_PORT &= ~_BV(LCD_RW_PIN)\r
+#define lcd_rs_high() LCD_RS_PORT |= _BV(LCD_RS_PIN)\r
+#define lcd_rs_low() LCD_RS_PORT &= ~_BV(LCD_RS_PIN)\r
+#endif\r
+\r
+#if LCD_IO_MODE\r
+#if LCD_LINES==1\r
+#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_1LINE \r
+#else\r
+#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_2LINES \r
+#endif\r
+#else\r
+#if LCD_LINES==1\r
+#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_1LINE\r
+#else\r
+#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_2LINES\r
+#endif\r
+#endif\r
+\r
+#if LCD_CONTROLLER_KS0073\r
+#if LCD_LINES==4\r
+\r
+#define KS0073_EXTENDED_FUNCTION_REGISTER_ON 0x24 /* |0|010|0100 4-bit mode extension-bit RE = 1 */\r
+#define KS0073_EXTENDED_FUNCTION_REGISTER_OFF 0x20 /* |0|000|1001 4 lines mode */\r
+#define KS0073_4LINES_MODE 0x09 /* |0|001|0000 4-bit mode, extension-bit RE = 0 */\r
+\r
+#endif\r
+#endif\r
+\r
+/* \r
+** function prototypes \r
+*/\r
+#if LCD_IO_MODE\r
+static void toggle_e(void);\r
+#endif\r
+\r
+/*\r
+** local functions\r
+*/\r
+\r
+\r
+\r
+/*************************************************************************\r
+ delay loop for small accurate delays: 16-bit counter, 4 cycles/loop\r
+*************************************************************************/\r
+static inline void _delayFourCycles(unsigned int __count)\r
+{\r
+ if ( __count == 0 ) \r
+ __asm__ __volatile__( "rjmp 1f\n 1:" ); // 2 cycles\r
+ else\r
+ __asm__ __volatile__ (\r
+ "1: sbiw %0,1" "\n\t" \r
+ "brne 1b" // 4 cycles/loop\r
+ : "=w" (__count)\r
+ : "0" (__count)\r
+ );\r
+}\r
+\r
+\r
+/************************************************************************* \r
+delay for a minimum of <us> microseconds\r
+the number of loops is calculated at compile-time from MCU clock frequency\r
+*************************************************************************/\r
+#define delay(us) _delayFourCycles( ( ( 1*(XTAL/4000) )*us)/1000 )\r
+\r
+\r
+#if LCD_IO_MODE\r
+/* toggle Enable Pin to initiate write */\r
+static void toggle_e(void)\r
+{\r
+ lcd_e_high();\r
+ lcd_e_delay();\r
+ lcd_e_low();\r
+}\r
+#endif\r
+\r
+\r
+/*************************************************************************\r
+Low-level function to write byte to LCD controller\r
+Input: data byte to write to LCD\r
+ rs 1: write data \r
+ 0: write instruction\r
+Returns: none\r
+*************************************************************************/\r
+#if LCD_IO_MODE\r
+static void lcd_write(uint8_t data,uint8_t rs) \r
+{\r
+ unsigned char dataBits ;\r
+\r
+\r
+ if (rs) { /* write data (RS=1, RW=0) */\r
+ lcd_rs_high();\r
+ } else { /* write instruction (RS=0, RW=0) */\r
+ lcd_rs_low();\r
+ }\r
+ lcd_rw_low();\r
+\r
+ if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )\r
+ && (LCD_DATA0_PIN == 0) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )\r
+ {\r
+ /* configure data pins as output */\r
+ DDR(LCD_DATA0_PORT) |= 0x0F;\r
+\r
+ /* output high nibble first */\r
+ dataBits = LCD_DATA0_PORT & 0xF0;\r
+ LCD_DATA0_PORT = dataBits |((data>>4)&0x0F);\r
+ lcd_e_toggle();\r
+\r
+ /* output low nibble */\r
+ LCD_DATA0_PORT = dataBits | (data&0x0F);\r
+ lcd_e_toggle();\r
+\r
+ /* all data pins high (inactive) */\r
+ LCD_DATA0_PORT = dataBits | 0x0F;\r
+ }\r
+ else\r
+ {\r
+ /* configure data pins as output */\r
+ DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN);\r
+ DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN);\r
+ DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN);\r
+ DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN);\r
+ \r
+ /* output high nibble first */\r
+ LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);\r
+ LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);\r
+ LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);\r
+ LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);\r
+ if(data & 0x80) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);\r
+ if(data & 0x40) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);\r
+ if(data & 0x20) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);\r
+ if(data & 0x10) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); \r
+ lcd_e_toggle();\r
+ \r
+ /* output low nibble */\r
+ LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);\r
+ LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);\r
+ LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);\r
+ LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);\r
+ if(data & 0x08) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);\r
+ if(data & 0x04) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);\r
+ if(data & 0x02) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);\r
+ if(data & 0x01) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);\r
+ lcd_e_toggle(); \r
+ \r
+ /* all data pins high (inactive) */\r
+ LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);\r
+ LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);\r
+ LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);\r
+ LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);\r
+ }\r
+}\r
+#else\r
+#define lcd_write(d,rs) if (rs) *(volatile uint8_t*)(LCD_IO_DATA) = d; else *(volatile uint8_t*)(LCD_IO_FUNCTION) = d;\r
+/* rs==0 -> write instruction to LCD_IO_FUNCTION */\r
+/* rs==1 -> write data to LCD_IO_DATA */\r
+#endif\r
+\r
+\r
+/*************************************************************************\r
+Low-level function to read byte from LCD controller\r
+Input: rs 1: read data \r
+ 0: read busy flag / address counter\r
+Returns: byte read from LCD controller\r
+*************************************************************************/\r
+#if LCD_IO_MODE\r
+static uint8_t lcd_read(uint8_t rs) \r
+{\r
+ uint8_t data;\r
+ \r
+ \r
+ if (rs)\r
+ lcd_rs_high(); /* RS=1: read data */\r
+ else\r
+ lcd_rs_low(); /* RS=0: read busy flag */\r
+ lcd_rw_high(); /* RW=1 read mode */\r
+ \r
+ if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )\r
+ && ( LCD_DATA0_PIN == 0 )&& (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )\r
+ {\r
+ DDR(LCD_DATA0_PORT) &= 0xF0; /* configure data pins as input */\r
+ \r
+ lcd_e_high();\r
+ lcd_e_delay(); \r
+ data = PIN(LCD_DATA0_PORT) << 4; /* read high nibble first */\r
+ lcd_e_low();\r
+ \r
+ lcd_e_delay(); /* Enable 500ns low */\r
+ \r
+ lcd_e_high();\r
+ lcd_e_delay();\r
+ data |= PIN(LCD_DATA0_PORT)&0x0F; /* read low nibble */\r
+ lcd_e_low();\r
+ }\r
+ else\r
+ {\r
+ /* configure data pins as input */\r
+ DDR(LCD_DATA0_PORT) &= ~_BV(LCD_DATA0_PIN);\r
+ DDR(LCD_DATA1_PORT) &= ~_BV(LCD_DATA1_PIN);\r
+ DDR(LCD_DATA2_PORT) &= ~_BV(LCD_DATA2_PIN);\r
+ DDR(LCD_DATA3_PORT) &= ~_BV(LCD_DATA3_PIN);\r
+ \r
+ /* read high nibble first */\r
+ lcd_e_high();\r
+ lcd_e_delay(); \r
+ data = 0;\r
+ if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x10;\r
+ if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x20;\r
+ if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x40;\r
+ if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x80;\r
+ lcd_e_low();\r
+\r
+ lcd_e_delay(); /* Enable 500ns low */\r
+ \r
+ /* read low nibble */ \r
+ lcd_e_high();\r
+ lcd_e_delay();\r
+ if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x01;\r
+ if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x02;\r
+ if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x04;\r
+ if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x08; \r
+ lcd_e_low();\r
+ }\r
+ return data;\r
+}\r
+#else\r
+#define lcd_read(rs) (rs) ? *(volatile uint8_t*)(LCD_IO_DATA+LCD_IO_READ) : *(volatile uint8_t*)(LCD_IO_FUNCTION+LCD_IO_READ)\r
+/* rs==0 -> read instruction from LCD_IO_FUNCTION */\r
+/* rs==1 -> read data from LCD_IO_DATA */\r
+#endif\r
+\r
+\r
+/*************************************************************************\r
+loops while lcd is busy, returns address counter\r
+*************************************************************************/\r
+static uint8_t lcd_waitbusy(void)\r
+\r
+{\r
+ register uint8_t c;\r
+ \r
+ /* wait until busy flag is cleared */\r
+ while ( (c=lcd_read(0)) & (1<<LCD_BUSY)) {}\r
+ \r
+ /* the address counter is updated 4us after the busy flag is cleared */\r
+ delay(2);\r
+\r
+ /* now read the address counter */\r
+ return (lcd_read(0)); // return address counter\r
+ \r
+}/* lcd_waitbusy */\r
+\r
+\r
+/*************************************************************************\r
+Move cursor to the start of next line or to the first line if the cursor \r
+is already on the last line.\r
+*************************************************************************/\r
+static inline void lcd_newline(uint8_t pos)\r
+{\r
+ register uint8_t addressCounter;\r
+\r
+\r
+#if LCD_LINES==1\r
+ addressCounter = 0;\r
+#endif\r
+#if LCD_LINES==2\r
+ if ( pos < (LCD_START_LINE2) )\r
+ addressCounter = LCD_START_LINE2;\r
+ else\r
+ addressCounter = LCD_START_LINE1;\r
+#endif\r
+#if LCD_LINES==4\r
+#if KS0073_4LINES_MODE\r
+ if ( pos < LCD_START_LINE2 )\r
+ addressCounter = LCD_START_LINE2;\r
+ else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE3) )\r
+ addressCounter = LCD_START_LINE3;\r
+ else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE4) )\r
+ addressCounter = LCD_START_LINE4;\r
+ else \r
+ addressCounter = LCD_START_LINE1;\r
+#else\r
+ if ( pos < LCD_START_LINE3 )\r
+ addressCounter = LCD_START_LINE2;\r
+ else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) )\r
+ addressCounter = LCD_START_LINE3;\r
+ else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) )\r
+ addressCounter = LCD_START_LINE4;\r
+ else \r
+ addressCounter = LCD_START_LINE1;\r
+#endif\r
+#endif\r
+ lcd_command((1<<LCD_DDRAM)+addressCounter);\r
+\r
+}/* lcd_newline */\r
+\r
+\r
+/*\r
+** PUBLIC FUNCTIONS \r
+*/\r
+\r
+/*************************************************************************\r
+Send LCD controller instruction command\r
+Input: instruction to send to LCD controller, see HD44780 data sheet\r
+Returns: none\r
+*************************************************************************/\r
+void lcd_command(uint8_t cmd)\r
+{\r
+ lcd_waitbusy();\r
+ lcd_write(cmd,0);\r
+}\r
+\r
+\r
+/*************************************************************************\r
+Send data byte to LCD controller \r
+Input: data to send to LCD controller, see HD44780 data sheet\r
+Returns: none\r
+*************************************************************************/\r
+void lcd_data(uint8_t data)\r
+{\r
+ lcd_waitbusy();\r
+ lcd_write(data,1);\r
+}\r
+\r
+\r
+\r
+/*************************************************************************\r
+Set cursor to specified position\r
+Input: x horizontal position (0: left most position)\r
+ y vertical position (0: first line)\r
+Returns: none\r
+*************************************************************************/\r
+void lcd_gotoxy(uint8_t x, uint8_t y)\r
+{\r
+#if LCD_LINES==1\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);\r
+#endif\r
+#if LCD_LINES==2\r
+ if ( y==0 ) \r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);\r
+ else\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);\r
+#endif\r
+#if LCD_LINES==4\r
+ if ( y==0 )\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);\r
+ else if ( y==1)\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);\r
+ else if ( y==2)\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE3+x);\r
+ else /* y==3 */\r
+ lcd_command((1<<LCD_DDRAM)+LCD_START_LINE4+x);\r
+#endif\r
+\r
+}/* lcd_gotoxy */\r
+\r
+\r
+/*************************************************************************\r
+*************************************************************************/\r
+int lcd_getxy(void)\r
+{\r
+ return lcd_waitbusy();\r
+}\r
+\r
+\r
+/*************************************************************************\r
+Clear display and set cursor to home position\r
+*************************************************************************/\r
+void lcd_clrscr(void)\r
+{\r
+ lcd_command(1<<LCD_CLR);\r
+}\r
+\r
+\r
+/*************************************************************************\r
+Set cursor to home position\r
+*************************************************************************/\r
+void lcd_home(void)\r
+{\r
+ lcd_command(1<<LCD_HOME);\r
+}\r
+\r
+\r
+/*************************************************************************\r
+Display character at current cursor position \r
+Input: character to be displayed \r
+Returns: none\r
+*************************************************************************/\r
+void lcd_putc(char c)\r
+{\r
+ uint8_t pos;\r
+\r
+\r
+ pos = lcd_waitbusy(); // read busy-flag and address counter\r
+ if (c=='\n')\r
+ {\r
+ lcd_newline(pos);\r
+ }\r
+ else\r
+ {\r
+#if LCD_WRAP_LINES==1\r
+#if LCD_LINES==1\r
+ if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);\r
+ }\r
+#elif LCD_LINES==2\r
+ if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0); \r
+ }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ){\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);\r
+ }\r
+#elif LCD_LINES==4\r
+ if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0); \r
+ }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE3,0);\r
+ }else if ( pos == LCD_START_LINE3+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE4,0);\r
+ }else if ( pos == LCD_START_LINE4+LCD_DISP_LENGTH ) {\r
+ lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);\r
+ }\r
+#endif\r
+ lcd_waitbusy();\r
+#endif\r
+ lcd_write(c, 1);\r
+ }\r
+\r
+}/* lcd_putc */\r
+\r
+\r
+/*************************************************************************\r
+Display string without auto linefeed \r
+Input: string to be displayed\r
+Returns: none\r
+*************************************************************************/\r
+void lcd_puts(const char *s)\r
+/* print string on lcd (no auto linefeed) */\r
+{\r
+ register char c;\r
+\r
+ while ( (c = *s++) ) {\r
+ lcd_putc(c);\r
+ }\r
+\r
+}/* lcd_puts */\r
+\r
+\r
+/*************************************************************************\r
+Display string from program memory without auto linefeed \r
+Input: string from program memory be be displayed \r
+Returns: none\r
+*************************************************************************/\r
+void lcd_puts_p(const char *progmem_s)\r
+/* print string from program memory on lcd (no auto linefeed) */\r
+{\r
+ register char c;\r
+\r
+ while ( (c = pgm_read_byte(progmem_s++)) ) {\r
+ lcd_putc(c);\r
+ }\r
+\r
+}/* lcd_puts_p */\r
+\r
+\r
+/*************************************************************************\r
+Initialize display and select type of cursor \r
+Input: dispAttr LCD_DISP_OFF display off\r
+ LCD_DISP_ON display on, cursor off\r
+ LCD_DISP_ON_CURSOR display on, cursor on\r
+ LCD_DISP_CURSOR_BLINK display on, cursor on flashing\r
+Returns: none\r
+*************************************************************************/\r
+void lcd_init(uint8_t dispAttr)\r
+{\r
+#if LCD_IO_MODE\r
+ /*\r
+ * Initialize LCD to 4 bit I/O mode\r
+ */\r
+ \r
+ if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )\r
+ && ( &LCD_RS_PORT == &LCD_DATA0_PORT) && ( &LCD_RW_PORT == &LCD_DATA0_PORT) && (&LCD_E_PORT == &LCD_DATA0_PORT)\r
+ && (LCD_DATA0_PIN == 0 ) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) \r
+ && (LCD_RS_PIN == 4 ) && (LCD_RW_PIN == 5) && (LCD_E_PIN == 6 ) )\r
+ {\r
+ /* configure all port bits as output (all LCD lines on same port) */\r
+ DDR(LCD_DATA0_PORT) |= 0x7F;\r
+ }\r
+ else if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )\r
+ && (LCD_DATA0_PIN == 0 ) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )\r
+ {\r
+ /* configure all port bits as output (all LCD data lines on same port, but control lines on different ports) */\r
+ DDR(LCD_DATA0_PORT) |= 0x0F;\r
+ DDR(LCD_RS_PORT) |= _BV(LCD_RS_PIN);\r
+ DDR(LCD_RW_PORT) |= _BV(LCD_RW_PIN);\r
+ DDR(LCD_E_PORT) |= _BV(LCD_E_PIN);\r
+ }\r
+ else\r
+ {\r
+ /* configure all port bits as output (LCD data and control lines on different ports */\r
+ DDR(LCD_RS_PORT) |= _BV(LCD_RS_PIN);\r
+ DDR(LCD_RW_PORT) |= _BV(LCD_RW_PIN);\r
+ DDR(LCD_E_PORT) |= _BV(LCD_E_PIN);\r
+ DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN);\r
+ DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN);\r
+ DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN);\r
+ DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN);\r
+ }\r
+ delay(16000); /* wait 16ms or more after power-on */\r
+ \r
+ /* initial write to lcd is 8bit */\r
+ LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN); // _BV(LCD_FUNCTION)>>4;\r
+ LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); // _BV(LCD_FUNCTION_8BIT)>>4;\r
+ lcd_e_toggle();\r
+ delay(4992); /* delay, busy flag can't be checked here */\r
+ \r
+ /* repeat last command */ \r
+ lcd_e_toggle(); \r
+ delay(64); /* delay, busy flag can't be checked here */\r
+ \r
+ /* repeat last command a third time */\r
+ lcd_e_toggle(); \r
+ delay(64); /* delay, busy flag can't be checked here */\r
+\r
+ /* now configure for 4bit mode */\r
+ LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN); // LCD_FUNCTION_4BIT_1LINE>>4\r
+ lcd_e_toggle();\r
+ delay(64); /* some displays need this additional delay */\r
+ \r
+ /* from now the LCD only accepts 4 bit I/O, we can use lcd_command() */ \r
+#else\r
+ /*\r
+ * Initialize LCD to 8 bit memory mapped mode\r
+ */\r
+ \r
+ /* enable external SRAM (memory mapped lcd) and one wait state */ \r
+ MCUCR = _BV(SRE) | _BV(SRW);\r
+\r
+ /* reset LCD */\r
+ delay(16000); /* wait 16ms after power-on */\r
+ lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ \r
+ delay(4992); /* wait 5ms */\r
+ lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ \r
+ delay(64); /* wait 64us */\r
+ lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ \r
+ delay(64); /* wait 64us */\r
+#endif\r
+\r
+#if KS0073_4LINES_MODE\r
+ /* Display with KS0073 controller requires special commands for enabling 4 line mode */\r
+ lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_ON);\r
+ lcd_command(KS0073_4LINES_MODE);\r
+ lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_OFF);\r
+#else\r
+ lcd_command(LCD_FUNCTION_DEFAULT); /* function set: display lines */\r
+#endif\r
+ lcd_command(LCD_DISP_OFF); /* display off */\r
+ lcd_clrscr(); /* display clear */ \r
+ lcd_command(LCD_MODE_DEFAULT); /* set entry mode */\r
+ lcd_command(dispAttr); /* display/cursor control */\r
+\r
+}/* lcd_init */\r
--- /dev/null
+#ifndef LCD_H\r
+#define LCD_H\r
+/*************************************************************************\r
+ Title : C include file for the HD44780U LCD library (lcd.c)\r
+ Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury\r
+ File: $Id: lcd.h,v 1.13.2.2 2006/01/30 19:51:33 peter Exp $\r
+ Software: AVR-GCC 3.3\r
+ Hardware: any AVR device, memory mapped mode only for AT90S4414/8515/Mega\r
+***************************************************************************/\r
+\r
+/**\r
+ @defgroup pfleury_lcd LCD library\r
+ @code #include <lcd.h> @endcode\r
+ \r
+ @brief Basic routines for interfacing a HD44780U-based text LCD display\r
+\r
+ Originally based on Volker Oth's LCD library,\r
+ changed lcd_init(), added additional constants for lcd_command(), \r
+ added 4-bit I/O mode, improved and optimized code.\r
+ \r
+ Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in \r
+ 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.\r
+\r
+ Memory mapped mode compatible with Kanda STK200, but supports also \r
+ generation of R/W signal through A8 address line.\r
+ \r
+ @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury\r
+ \r
+ @see The chapter <a href="http://homepage.sunrise.ch/mysunrise/peterfleury/avr-lcd44780.html" target="_blank">Interfacing a HD44780 Based LCD to an AVR</a>\r
+ on my home page.\r
+\r
+*/\r
+\r
+/*@{*/\r
+\r
+#if (__GNUC__ * 100 + __GNUC_MINOR__) < 303\r
+#error "This library requires AVR-GCC 3.3 or later, update to newer AVR-GCC compiler !"\r
+#endif\r
+\r
+#include <inttypes.h>\r
+#include <avr/pgmspace.h>\r
+\r
+/** \r
+ * @name Definitions for MCU Clock Frequency\r
+ * Adapt the MCU clock frequency in Hz to your target. \r
+ */\r
+#define XTAL 4000000 /**< clock frequency in Hz, used to calculate delay timer */\r
+\r
+\r
+/**\r
+ * @name Definition for LCD controller type\r
+ * Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller.\r
+ */\r
+#define LCD_CONTROLLER_KS0073 0 /**< Use 0 for HD44780 controller, 1 for KS0073 controller */\r
+\r
+/** \r
+ * @name Definitions for Display Size \r
+ * Change these definitions to adapt setting to your display\r
+ */\r
+#define LCD_LINES 4 /**< number of visible lines of the display */\r
+#define LCD_DISP_LENGTH 20 /**< visibles characters per line of the display */\r
+#define LCD_LINE_LENGTH 0x40 /**< internal line length of the display */\r
+#define LCD_START_LINE1 0x00 /**< DDRAM address of first char of line 1 */\r
+#define LCD_START_LINE2 0x40 /**< DDRAM address of first char of line 2 */\r
+#define LCD_START_LINE3 0x14 /**< DDRAM address of first char of line 3 */\r
+#define LCD_START_LINE4 0x54 /**< DDRAM address of first char of line 4 */\r
+#define LCD_WRAP_LINES 0 /**< 0: no wrap, 1: wrap at end of visibile line */\r
+\r
+\r
+#define LCD_IO_MODE 1 /**< 0: memory mapped mode, 1: IO port mode */\r
+#if LCD_IO_MODE\r
+/**\r
+ * @name Definitions for 4-bit IO mode\r
+ * Change LCD_PORT if you want to use a different port for the LCD pins.\r
+ *\r
+ * The four LCD data lines and the three control lines RS, RW, E can be on the \r
+ * same port or on different ports. \r
+ * Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on\r
+ * different ports. \r
+ *\r
+ * Normally the four data lines should be mapped to bit 0..3 on one port, but it\r
+ * is possible to connect these data lines in different order or even on different\r
+ * ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions.\r
+ * \r
+ */\r
+#define LCD_PORT PORTD /**< port for the LCD lines */\r
+#define LCD_DATA0_PORT LCD_PORT /**< port for 4bit data bit 0 */\r
+#define LCD_DATA1_PORT LCD_PORT /**< port for 4bit data bit 1 */\r
+#define LCD_DATA2_PORT LCD_PORT /**< port for 4bit data bit 2 */\r
+#define LCD_DATA3_PORT LCD_PORT /**< port for 4bit data bit 3 */\r
+#define LCD_DATA0_PIN 0 /**< pin for 4bit data bit 0 */\r
+#define LCD_DATA1_PIN 1 /**< pin for 4bit data bit 1 */\r
+#define LCD_DATA2_PIN 2 /**< pin for 4bit data bit 2 */\r
+#define LCD_DATA3_PIN 3 /**< pin for 4bit data bit 3 */\r
+#define LCD_RS_PORT LCD_PORT /**< port for RS line */\r
+#define LCD_RS_PIN 5 /**< pin for RS line */\r
+#define LCD_RW_PORT LCD_PORT /**< port for RW line */\r
+#define LCD_RW_PIN 7 /**< pin for RW line */\r
+#define LCD_E_PORT LCD_PORT /**< port for Enable line */\r
+#define LCD_E_PIN 4 /**< pin for Enable line */\r
+\r
+#elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || defined(__AVR_ATmega64__) || \\r
+ defined(__AVR_ATmega8515__)|| defined(__AVR_ATmega103__) || defined(__AVR_ATmega128__) || \\r
+ defined(__AVR_ATmega161__) || defined(__AVR_ATmega162__)\r
+/*\r
+ * memory mapped mode is only supported when the device has an external data memory interface\r
+ */\r
+#define LCD_IO_DATA 0xC000 /* A15=E=1, A14=RS=1 */\r
+#define LCD_IO_FUNCTION 0x8000 /* A15=E=1, A14=RS=0 */\r
+#define LCD_IO_READ 0x0100 /* A8 =R/W=1 (R/W: 1=Read, 0=Write */\r
+#else\r
+#error "external data memory interface not available for this device, use 4-bit IO port mode"\r
+\r
+#endif\r
+\r
+\r
+/**\r
+ * @name Definitions for LCD command instructions\r
+ * The constants define the various LCD controller instructions which can be passed to the \r
+ * function lcd_command(), see HD44780 data sheet for a complete description.\r
+ */\r
+\r
+/* instruction register bit positions, see HD44780U data sheet */\r
+#define LCD_CLR 0 /* DB0: clear display */\r
+#define LCD_HOME 1 /* DB1: return to home position */\r
+#define LCD_ENTRY_MODE 2 /* DB2: set entry mode */\r
+#define LCD_ENTRY_INC 1 /* DB1: 1=increment, 0=decrement */\r
+#define LCD_ENTRY_SHIFT 0 /* DB2: 1=display shift on */\r
+#define LCD_ON 3 /* DB3: turn lcd/cursor on */\r
+#define LCD_ON_DISPLAY 2 /* DB2: turn display on */\r
+#define LCD_ON_CURSOR 1 /* DB1: turn cursor on */\r
+#define LCD_ON_BLINK 0 /* DB0: blinking cursor ? */\r
+#define LCD_MOVE 4 /* DB4: move cursor/display */\r
+#define LCD_MOVE_DISP 3 /* DB3: move display (0-> cursor) ? */\r
+#define LCD_MOVE_RIGHT 2 /* DB2: move right (0-> left) ? */\r
+#define LCD_FUNCTION 5 /* DB5: function set */\r
+#define LCD_FUNCTION_8BIT 4 /* DB4: set 8BIT mode (0->4BIT mode) */\r
+#define LCD_FUNCTION_2LINES 3 /* DB3: two lines (0->one line) */\r
+#define LCD_FUNCTION_10DOTS 2 /* DB2: 5x10 font (0->5x7 font) */\r
+#define LCD_CGRAM 6 /* DB6: set CG RAM address */\r
+#define LCD_DDRAM 7 /* DB7: set DD RAM address */\r
+#define LCD_BUSY 7 /* DB7: LCD is busy */\r
+\r
+/* set entry mode: display shift on/off, dec/inc cursor move direction */\r
+#define LCD_ENTRY_DEC 0x04 /* display shift off, dec cursor move dir */\r
+#define LCD_ENTRY_DEC_SHIFT 0x05 /* display shift on, dec cursor move dir */\r
+#define LCD_ENTRY_INC_ 0x06 /* display shift off, inc cursor move dir */\r
+#define LCD_ENTRY_INC_SHIFT 0x07 /* display shift on, inc cursor move dir */\r
+\r
+/* display on/off, cursor on/off, blinking char at cursor position */\r
+#define LCD_DISP_OFF 0x08 /* display off */\r
+#define LCD_DISP_ON 0x0C /* display on, cursor off */\r
+#define LCD_DISP_ON_BLINK 0x0D /* display on, cursor off, blink char */\r
+#define LCD_DISP_ON_CURSOR 0x0E /* display on, cursor on */\r
+#define LCD_DISP_ON_CURSOR_BLINK 0x0F /* display on, cursor on, blink char */\r
+\r
+/* move cursor/shift display */\r
+#define LCD_MOVE_CURSOR_LEFT 0x10 /* move cursor left (decrement) */\r
+#define LCD_MOVE_CURSOR_RIGHT 0x14 /* move cursor right (increment) */\r
+#define LCD_MOVE_DISP_LEFT 0x18 /* shift display left */\r
+#define LCD_MOVE_DISP_RIGHT 0x1C /* shift display right */\r
+\r
+/* function set: set interface data length and number of display lines */\r
+#define LCD_FUNCTION_4BIT_1LINE 0x20 /* 4-bit interface, single line, 5x7 dots */\r
+#define LCD_FUNCTION_4BIT_2LINES 0x28 /* 4-bit interface, dual line, 5x7 dots */\r
+#define LCD_FUNCTION_8BIT_1LINE 0x30 /* 8-bit interface, single line, 5x7 dots */\r
+#define LCD_FUNCTION_8BIT_2LINES 0x38 /* 8-bit interface, dual line, 5x7 dots */\r
+\r
+\r
+#define LCD_MODE_DEFAULT ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )\r
+\r
+\r
+\r
+/** \r
+ * @name Functions\r
+ */\r
+\r
+\r
+/**\r
+ @brief Initialize display and select type of cursor\r
+ @param dispAttr \b LCD_DISP_OFF display off\n\r
+ \b LCD_DISP_ON display on, cursor off\n\r
+ \b LCD_DISP_ON_CURSOR display on, cursor on\n\r
+ \b LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing \r
+ @return none\r
+*/\r
+extern void lcd_init(uint8_t dispAttr);\r
+\r
+\r
+/**\r
+ @brief Clear display and set cursor to home position\r
+ @param void \r
+ @return none\r
+*/\r
+extern void lcd_clrscr(void);\r
+\r
+\r
+/**\r
+ @brief Set cursor to home position\r
+ @param void \r
+ @return none\r
+*/\r
+extern void lcd_home(void);\r
+\r
+\r
+/**\r
+ @brief Set cursor to specified position\r
+ \r
+ @param x horizontal position\n (0: left most position)\r
+ @param y vertical position\n (0: first line)\r
+ @return none\r
+*/\r
+extern void lcd_gotoxy(uint8_t x, uint8_t y);\r
+\r
+\r
+/**\r
+ @brief Display character at current cursor position\r
+ @param c character to be displayed \r
+ @return none\r
+*/\r
+extern void lcd_putc(char c);\r
+\r
+\r
+/**\r
+ @brief Display string without auto linefeed\r
+ @param s string to be displayed \r
+ @return none\r
+*/\r
+extern void lcd_puts(const char *s);\r
+\r
+\r
+/**\r
+ @brief Display string from program memory without auto linefeed\r
+ @param s string from program memory be be displayed \r
+ @return none\r
+ @see lcd_puts_P\r
+*/\r
+extern void lcd_puts_p(const char *progmem_s);\r
+\r
+\r
+/**\r
+ @brief Send LCD controller instruction command\r
+ @param cmd instruction to send to LCD controller, see HD44780 data sheet\r
+ @return none\r
+*/\r
+extern void lcd_command(uint8_t cmd);\r
+\r
+\r
+/**\r
+ @brief Send data byte to LCD controller \r
+ \r
+ Similar to lcd_putc(), but without interpreting LF\r
+ @param data byte to send to LCD controller, see HD44780 data sheet\r
+ @return none\r
+*/\r
+extern void lcd_data(uint8_t data);\r
+\r
+\r
+/**\r
+ @brief macros for automatically storing string constant in program memory\r
+*/\r
+#define lcd_puts_P(__s) lcd_puts_p(PSTR(__s))\r
+\r
+/*@}*/\r
+#endif //LCD_H\r
--- /dev/null
+# Hey Emacs, this is a -*- makefile -*-
+#
+# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.
+# Released to the Public Domain
+# Please read the make user manual!
+#
+# Additional material for this makefile was submitted by:
+# Tim Henigan
+# Peter Fleury
+# Reiner Patommel
+# Sander Pool
+# Frederik Rouleau
+# Markus Pfaff
+#
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
+#
+# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
+# 4.07 or greater).
+#
+# make program = Download the hex file to the device, using avrdude. Please
+# customize the avrdude settings below first!
+#
+# make filename.s = Just compile filename.c into the assembler code only
+#
+# To rebuild project do "make clean" then "make all".
+#
+
+
+# MCU name
+MCU = attiny48
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+# Target file name (without extension).
+TARGET = test_lcd
+
+
+# List C source files here. (C dependencies are automatically generated.)
+SRC = $(TARGET).c lcd.c
+
+
+# List Assembler source files here.
+# Make them always end in a capital .S. Files ending in a lowercase .s
+# will not be considered source files but generated files (assembler
+# output from the compiler), and will be deleted upon "make clean"!
+# Even though the DOS/Win* filesystem matches both .s and .S the same,
+# it will preserve the spelling of the filenames, and gcc itself does
+# care about how the name is spelled on its command-line.
+ASRC =
+
+
+
+# Optimization level, can be [0, 1, 2, 3, s].
+# 0 = turn off optimization. s = optimize for size.
+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+# Debugging format.
+# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
+# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
+DEBUG = dwarf-2
+
+# List any extra directories to look for include files here.
+# Each directory must be seperated by a space.
+EXTRAINCDIRS =
+
+
+# Compiler flag to set the C Standard level.
+# c89 - "ANSI" C
+# gnu89 - c89 plus GCC extensions
+# c99 - ISO C99 standard (not yet fully implemented)
+# gnu99 - c99 plus GCC extensions
+CSTANDARD = -std=gnu99
+
+# Place -D or -U options here
+CDEFS =
+
+# Place -I options here
+CINCS =
+
+
+# Compiler flags.
+# -g*: generate debugging information
+# -O*: optimization level
+# -f...: tuning, see GCC manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns...: create assembler listing
+CFLAGS = -g$(DEBUG)
+CFLAGS += $(CDEFS) $(CINCS)
+CFLAGS += -O$(OPT)
+CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
+CFLAGS += -Wall -Wstrict-prototypes
+CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+CFLAGS += $(CSTANDARD)
+
+
+
+# Assembler flags.
+# -Wa,...: tell GCC to pass this to the assembler.
+# -ahlms: create listing
+# -gstabs: have the assembler create line number information; note that
+# for use in COFF files, additional information about filenames
+# and function names needs to be present in the assembler source
+# files -- see avr-libc docs [FIXME: not yet described there]
+ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
+
+
+
+#Additional libraries.
+
+# Minimalistic printf version
+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires MATH_LIB = -lm below)
+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
+
+PRINTF_LIB =
+
+# Minimalistic scanf version
+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
+
+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
+
+SCANF_LIB =
+
+MATH_LIB = -lm
+
+# External memory options
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# used for variables (.data/.bss) and heap (malloc()).
+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# only used for heap (malloc()).
+#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
+
+EXTMEMOPTS =
+
+# Linker flags.
+# -Wl,...: tell GCC to pass this to linker.
+# -Map: create map file
+# --cref: add cross reference to map file
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
+LDFLAGS += $(EXTMEMOPTS)
+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
+
+
+
+
+# Programming support using avrdude. Settings and variables.
+
+# Programming hardware: alf avr910 avrisp bascom bsd
+# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
+#
+# Type: avrdude -c ?
+# to get a full listing.
+#
+AVRDUDE_PROGRAMMER = usbtiny
+
+# com1 = serial port. Use lpt1 to connect to parallel port.
+#AVRDUDE_PORT = com1 # programmer connected to serial device
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+
+# Uncomment the following if you want avrdude's erase cycle counter.
+# Note that this counter needs to be initialized first using -Yn,
+# see avrdude manual.
+#AVRDUDE_ERASE_COUNTER = -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_NO_VERIFY = -V
+
+# Increase verbosity level. Please use this when submitting bug
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
+# to submit bug reports.
+#AVRDUDE_VERBOSE = -v -v
+
+AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
+
+
+
+# ---------------------------------------------------------------------------
+
+# Define directories, if needed.
+#DIRAVR = c:/winavr
+#DIRAVRBIN = $(DIRAVR)/bin
+#DIRAVRUTILS = $(DIRAVR)/utils/bin
+#DIRINC = .
+#DIRLIB = $(DIRAVR)/avr/lib
+
+
+# Define programs and commands.
+SHELL = sh
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+NM = avr-nm
+AVRDUDE = avrdude
+REMOVE = rm -f
+COPY = cp
+
+
+
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = -------- end --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+
+
+
+
+# Define all object files.
+OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
+
+# Define all listing files.
+LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
+
+
+# Compiler flags to generate dependency files.
+GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d
+
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+
+
+# Default target.
+all: begin gccversion sizebefore build sizeafter finished end
+
+build: elf hex eep lss sym
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+ @echo
+ @echo $(MSG_BEGIN)
+
+finished:
+ @echo $(MSG_ERRORS_NONE)
+
+end:
+ @echo $(MSG_END)
+ @echo
+
+
+# Display size of file.
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+ELFSIZE = $(SIZE) -A $(TARGET).elf
+sizebefore:
+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
+
+sizeafter:
+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+ @$(CC) --version
+
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+
+
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
+COFFCONVERT=$(OBJCOPY) --debugging \
+--change-section-address .data-0x800000 \
+--change-section-address .bss-0x800000 \
+--change-section-address .noinit-0x800000 \
+--change-section-address .eeprom-0x810000
+
+
+coff: $(TARGET).elf
+ @echo
+ @echo $(MSG_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+ @echo
+ @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+ @echo
+ @echo $(MSG_FLASH) $@
+ $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
+
+%.eep: %.elf
+ @echo
+ @echo $(MSG_EEPROM) $@
+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+ --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+ @echo
+ @echo $(MSG_EXTENDED_LISTING) $@
+ $(OBJDUMP) -h -S $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+ @echo
+ @echo $(MSG_SYMBOL_TABLE) $@
+ $(NM) -n $< > $@
+
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+ @echo
+ @echo $(MSG_LINKING) $@
+ $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+%.o : %.c
+ @echo
+ @echo $(MSG_COMPILING) $<
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+%.o : %.S
+ @echo
+ @echo $(MSG_ASSEMBLING) $<
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+
+# Target: clean project.
+clean: begin clean_list finished end
+
+clean_list :
+ @echo
+ @echo $(MSG_CLEANING)
+ $(REMOVE) $(TARGET).hex
+ $(REMOVE) $(TARGET).eep
+ $(REMOVE) $(TARGET).obj
+ $(REMOVE) $(TARGET).cof
+ $(REMOVE) $(TARGET).elf
+ $(REMOVE) $(TARGET).map
+ $(REMOVE) $(TARGET).obj
+ $(REMOVE) $(TARGET).a90
+ $(REMOVE) $(TARGET).sym
+ $(REMOVE) $(TARGET).lnk
+ $(REMOVE) $(TARGET).lss
+ $(REMOVE) $(OBJ)
+ $(REMOVE) $(LST)
+ $(REMOVE) $(SRC:.c=.s)
+ $(REMOVE) $(SRC:.c=.d)
+ $(REMOVE) .dep/*
+
+
+
+# Include the dependency files.
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff \
+clean clean_list program
+
--- /dev/null
+/*************************************************************************\r
+Title: testing output to a HD44780 based LCD display.\r
+Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury\r
+File: $Id: test_lcd.c,v 1.6 2004/12/10 13:53:59 peter Exp $\r
+Software: AVR-GCC 3.3\r
+Hardware: HD44780 compatible LCD text display\r
+ ATS90S8515/ATmega if memory-mapped LCD interface is used\r
+ any AVR with 7 free I/O pins if 4-bit IO port mode is used\r
+**************************************************************************/\r
+#include <stdlib.h>\r
+#include <avr/io.h>\r
+#include <avr/pgmspace.h>\r
+#include "lcd.h"\r
+\r
+\r
+/*\r
+** constant definitions\r
+*/\r
+static const PROGMEM unsigned char copyRightChar[] =\r
+{\r
+ 0x07, 0x08, 0x13, 0x14, 0x14, 0x13, 0x08, 0x07,\r
+ 0x00, 0x10, 0x08, 0x08, 0x08, 0x08, 0x10, 0x00\r
+};\r
+\r
+\r
+/*\r
+** function prototypes\r
+*/ \r
+void wait_until_key_pressed(void);\r
+\r
+\r
+void wait_until_key_pressed(void)\r
+{\r
+ unsigned char temp1, temp2;\r
+ unsigned int i;\r
+ \r
+ do {\r
+ temp1 = PINC; // read input\r
+ for(i=0;i<65535;i++);\r
+ temp2 = PINC; // read input\r
+ temp1 = (temp1 & temp2); // debounce input\r
+ } while ( temp1 & _BV(PINC4) );\r
+ \r
+ loop_until_bit_is_set(PINC,PINC4); /* wait until key is released */\r
+}\r
+\r
+\r
+int main(void)\r
+{\r
+ char buffer[7];\r
+ int num=134;\r
+ unsigned char i;\r
+ \r
+ \r
+ DDRD &=~ (1 << PC4); /* Pin PC4 input */\r
+ PORTD |= (1 << PC4); /* Pin PC4 pull-up enabled */\r
+\r
+\r
+ /* initialize display, cursor off */\r
+ lcd_init(LCD_DISP_ON);\r
+\r
+ for (;;) { /* loop forever */\r
+ /* \r
+ * Test 1: write text to display\r
+ */\r
+\r
+ /* clear display and home cursor */\r
+ lcd_clrscr();\r
+ \r
+ /* put string to display (line 1) with linefeed */\r
+ lcd_puts("LCD Test Line 1\n");\r
+\r
+ /* cursor is now on second line, write second line */\r
+ lcd_puts("Line 2");\r
+ \r
+ /* move cursor to position 8 on line 2 */\r
+ lcd_gotoxy(7,1); \r
+ \r
+ /* write single char to display */\r
+ lcd_putc(':');\r
+ \r
+ /* wait until push button PD2 (INT0) is pressed */\r
+ wait_until_key_pressed();\r
+ \r
+ \r
+ /*\r
+ * Test 2: use lcd_command() to turn on cursor\r
+ */\r
+ \r
+ /* turn on cursor */\r
+ lcd_command(LCD_DISP_ON_CURSOR);\r
+\r
+ /* put string */\r
+ lcd_puts( "CurOn");\r
+ \r
+ /* wait until push button PD2 (INT0) is pressed */\r
+ wait_until_key_pressed();\r
+\r
+\r
+ /*\r
+ * Test 3: display shift\r
+ */\r
+ \r
+ lcd_clrscr(); /* clear display home cursor */\r
+\r
+ /* put string from program memory to display */\r
+ lcd_puts_P( "Line 1 longer than 14 characters\n" );\r
+ lcd_puts_P( "Line 2 longer than 14 characters" );\r
+ \r
+ /* move BOTH lines one position to the left */\r
+ lcd_command(LCD_MOVE_DISP_LEFT);\r
+ \r
+ /* wait until push button PD2 (INT0) is pressed */\r
+ wait_until_key_pressed();\r
+\r
+ /* turn off cursor */\r
+ lcd_command(LCD_DISP_ON);\r
+ \r
+ \r
+ /*\r
+ * Test: Display integer values\r
+ */\r
+ \r
+ lcd_clrscr(); /* clear display home cursor */\r
+ \r
+ /* convert interger into string */\r
+ itoa( num , buffer, 10);\r
+ \r
+ /* put converted string to display */\r
+ lcd_puts(buffer);\r
+ \r
+ /* wait until push button PD2 (INT0) is pressed */\r
+ wait_until_key_pressed();\r
+ \r
+ \r
+ /*\r
+ * Test: Display userdefined characters\r
+ */\r
+\r
+ lcd_clrscr(); /* clear display home cursor */\r
+ \r
+ lcd_puts("Copyright: ");\r
+ \r
+ /*\r
+ * load two userdefined characters from program memory\r
+ * into LCD controller CG RAM location 0 and 1\r
+ */\r
+ lcd_command(_BV(LCD_CGRAM)); /* set CG RAM start address 0 */\r
+ for(i=0; i<16; i++)\r
+ {\r
+ lcd_data(pgm_read_byte_near(©RightChar[i]));\r
+ }\r
+ \r
+ /* move cursor to position 0 on line 2 */\r
+ /* Note: this switched back to DD RAM adresses */\r
+ lcd_gotoxy(0,1);\r
+ \r
+ /* display user defined (c), built using two user defined chars */\r
+ lcd_putc(0);\r
+ lcd_putc(1);\r
+ \r
+\r
+ /* wait until push button PD2 (INT0) is pressed */\r
+ wait_until_key_pressed();\r
+ \r
+ }\r
+}\r
--- /dev/null
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/sleep.h>
+
+void wait_until_key_pressed(void)
+{
+ unsigned char temp1, temp2;
+ unsigned int i;
+
+ do {
+ temp1 = PINC; // read input
+ for(i=0;i<65535;i++);
+ temp2 = PINC; // read input
+ temp1 = (temp1 & temp2); // debounce input
+ } while ( temp1 & _BV(PINC4) );
+
+ loop_until_bit_is_set(PINC,PINC4); /* wait until key is released */
+}
+
+int main (void)
+{
+ // configure to read center press on joy switch
+ DDRC &=~ (1 << PC4); /* Pin PC4 input */
+ PORTC |= (1 << PC4); /* Pin PC4 pull-up enabled */
+
+ for (;;) { /* loop forever */
+ // turn on LCD backlight LED
+ PORTD = 0xff;
+ wait_until_key_pressed();
+ PORTD = 0;
+ wait_until_key_pressed();
+ }
+ return 0;
+}
projects / fw / altos / commitdiff
