hd44780_internal.h
2.49 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
/*
* Copyright (C) 2017 HAW Hamburg
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_hd44780
*
* @{
* @file
* @brief Internal config and parameters for the HD44780 display
*
* @author Sebastian Meiling <s@mlng.net>
*/
#ifndef HD44780_INTERNAL_H
#define HD44780_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name HD44780 LCD commands
* @{
*/
#define HD44780_CLEARDISPLAY (0x01)
#define HD44780_RETURNHOME (0x02)
#define HD44780_ENTRYMODESET (0x04)
#define HD44780_DISPLAYCONTROL (0x08)
#define HD44780_CURSORSHIFT (0x10)
#define HD44780_FUNCTIONSET (0x20)
#define HD44780_SETCGRAMADDR (0x40)
#define HD44780_SETDDRAMADDR (0x80)
/** @} */
/**
* @name HD44780 LCD entry modes flags
* @{
*/
#define HD44780_ENTRYRIGHT (0x00)
#define HD44780_ENTRYLEFT (0x02)
#define HD44780_ENTRYSHIFTINCREMENT (0x01)
#define HD44780_ENTRYSHIFTDECREMENT (0x00)
/** @} */
/**
* @name HD44780 LCD control flags
* @{
*/
#define HD44780_DISPLAYON (0x04)
#define HD44780_DISPLAYOFF (0x00)
#define HD44780_CURSORON (0x02)
#define HD44780_CURSOROFF (0x00)
#define HD44780_BLINKON (0x01)
#define HD44780_BLINKOFF (0x00)
/** @} */
/**
* @name HD44780 display and cursor shift flags
* @{
*/
#define HD44780_DISPLAYMOVE (0x08)
#define HD44780_CURSORMOVE (0x00)
#define HD44780_MOVERIGHT (0x04)
#define HD44780_MOVELEFT (0x00)
/**@}*/
/**
* @name HD44780 LCD functional flags
* @{
*/
#define HD44780_8BITMODE (0x10)
#define HD44780_4BITMODE (0x00)
#define HD44780_2LINE (0x08)
#define HD44780_1LINE (0x00)
#define HD44780_5x10DOTS (0x04)
#define HD44780_5x8DOTS (0x00)
/** @} */
/**
* @name HD44780 LCD timings
* @{
*/
#define HD44780_CMD_WAIT (2000U)
#define HD44780_INIT_WAIT_XXL (50000U)
#define HD44780_INIT_WAIT_LONG (4500U)
#define HD44780_INIT_WAIT_SHORT (150U)
#define HD44780_PULSE_WAIT_SHORT (1U)
#define HD44780_PULSE_WAIT_LONG (100U)
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* HD44780_INTERNAL_H */
/** @} */