diff options
Diffstat (limited to 'lib/lufa/Projects/SerialToLCD/Lib/HD44780.h')
| -rw-r--r-- | lib/lufa/Projects/SerialToLCD/Lib/HD44780.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h new file mode 100644 index 000000000..012803785 --- /dev/null +++ b/lib/lufa/Projects/SerialToLCD/Lib/HD44780.h | |||
| @@ -0,0 +1,64 @@ | |||
| 1 | /* | ||
| 2 | LUFA Library | ||
| 3 | Copyright (C) Dean Camera, 2017. | ||
| 4 | |||
| 5 | dean [at] fourwalledcubicle [dot] com | ||
| 6 | www.lufa-lib.org | ||
| 7 | */ | ||
| 8 | |||
| 9 | /* | ||
| 10 | Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) | ||
| 11 | Copyright 2012 Simon Foster (simon.foster [at] inbox [dot] com) | ||
| 12 | |||
| 13 | Permission to use, copy, modify, distribute, and sell this | ||
| 14 | software and its documentation for any purpose is hereby granted | ||
| 15 | without fee, provided that the above copyright notice appear in | ||
| 16 | all copies and that both that the copyright notice and this | ||
| 17 | permission notice and warranty disclaimer appear in supporting | ||
| 18 | documentation, and that the name of the author not be used in | ||
| 19 | advertising or publicity pertaining to distribution of the | ||
| 20 | software without specific, written prior permission. | ||
| 21 | |||
| 22 | The author disclaims all warranties with regard to this | ||
| 23 | software, including all implied warranties of merchantability | ||
| 24 | and fitness. In no event shall the author be liable for any | ||
| 25 | special, indirect or consequential damages or any damages | ||
| 26 | whatsoever resulting from loss of use, data or profits, whether | ||
| 27 | in an action of contract, negligence or other tortious action, | ||
| 28 | arising out of or in connection with the use or performance of | ||
| 29 | this software. | ||
| 30 | */ | ||
| 31 | |||
| 32 | /** \file | ||
| 33 | * | ||
| 34 | * Header file for HD44780.c. | ||
| 35 | */ | ||
| 36 | |||
| 37 | #ifndef _HD44780_H_ | ||
| 38 | #define _HD44780_H_ | ||
| 39 | |||
| 40 | /* Includes: */ | ||
| 41 | #include <avr/io.h> | ||
| 42 | #include <util/delay.h> | ||
| 43 | #include <avr/power.h> | ||
| 44 | |||
| 45 | /* Macros: */ | ||
| 46 | #define RS (1 << 4) /* PD4 */ | ||
| 47 | #define ENABLE (1 << 7) /* PD7 */ | ||
| 48 | |||
| 49 | #define HI4_MASK 0xF0 | ||
| 50 | #define LO4_MASK 0x0F /* PD0-PD3 */ | ||
| 51 | |||
| 52 | #define ALL_BITS (RS | ENABLE | LO4_MASK) | ||
| 53 | |||
| 54 | #define HI4(c) ((c & HI4_MASK) >> 4) | ||
| 55 | #define LO4(c) ((c & LO4_MASK) >> 0) | ||
| 56 | |||
| 57 | #define CMD_DISPLAY_ON 0x0C | ||
| 58 | |||
| 59 | /* Function Prototypes: */ | ||
| 60 | void HD44780_Initialize(void); | ||
| 61 | void HD44780_WriteData(const uint8_t c); | ||
| 62 | void HD44780_WriteCommand(const uint8_t c); | ||
| 63 | |||
| 64 | #endif | ||
