Added new SerialToLCD user project contributed by Simon Foster.

[pub/lufa.git] / Projects / SerialToLCD / Lib / HD44780.h

diff --git a/Projects/SerialToLCD/Lib/HD44780.h b/Projects/SerialToLCD/Lib/HD44780.h
new file mode 100644 (file)
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+++ b/Projects/SerialToLCD/Lib/HD44780.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  Simon Foster (simon.foster [at] inbox [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Header file for HD44780.c.
+ */
+
+#ifndef _HD44780_H_
+#define _HD44780_H_
+       
+       /* Includes: */
+               #include <avr/io.h>
+               #include <util/delay.h>
+               #include <avr/power.h>
+
+       /* Macros: */
+               #define RS                  (0x10)      // PD4
+               #define ENABLE              (0x80)      // PD7
+
+               #define HI4_MASK            (0xF0)
+               #define LO4_MASK            (0x0F)      // PD0..3
+
+               #define ALL_BITS            (RS|ENABLE|LO4_MASK)
+
+               #define HI4( c )            (( c & HI4_MASK ) >> 4 )
+               #define LO4( c )            (( c & LO4_MASK ) >> 0 )
+
+               #define CMD_DISPLAY_ON      0x0C
+
+       /* Function Prototypes: */
+               void HD44780_Initialise(void);
+               void HD44780_WriteData(const uint8_t c);
+               void HD44780_WriteCommand(const uint8_t c);
+
+#endif