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author | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
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committer | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
commit | d311fd8d1a0af3b767d26b520d399bf0db22f058 (patch) | |
tree | b9de5704143ac205b4e26222f9d7551e9b161924 /tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h | |
parent | a766918d5c48204375f4c207b30bbbf1389df14f (diff) | |
parent | 6f3141965e88c4ee0ebf7c18a243e4c2d9c5021b (diff) |
Merge pull request #34 from jackhumbert/tmk-master
merging from tmk, new_project script and template
Diffstat (limited to 'tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h')
-rw-r--r-- | tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h b/tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h new file mode 100644 index 0000000000..b6dbe905e0 --- /dev/null +++ b/tmk_core/protocol/lufa/LUFA-git/Projects/SerialToLCD/Lib/HD44780.h @@ -0,0 +1,64 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 disclaims 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 (1 << 4) /* PD4 */ + #define ENABLE (1 << 7) /* PD7 */ + + #define HI4_MASK 0xF0 + #define LO4_MASK 0x0F /* PD0-PD3 */ + + #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_Initialize(void); + void HD44780_WriteData(const uint8_t c); + void HD44780_WriteCommand(const uint8_t c); + +#endif |