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hd44780_params.h
Go to the documentation of this file.
1/*
2 * Copyright (C) 2017 HAW Hamburg
3 *
4 * This file is subject to the terms and conditions of the GNU Lesser
5 * General Public License v2.1. See the file LICENSE in the top level
6 * directory for more details.
7 */
8
18#ifndef HD44780_PARAMS_H
19#define HD44780_PARAMS_H
20
21#include "board.h"
22#ifdef MODULE_PCF857X
23#include "pcf857x.h"
24#else
25#include "periph/gpio.h"
26#endif
27
28#ifdef __cplusplus
29extern "C"
30{
31#endif
32
33/* The default pins corresponds to Arduino pins on the Arduino Zero board. */
34
35#ifndef HD44780_PARAM_COLS
36#define HD44780_PARAM_COLS (16U)
37#endif
38#ifndef HD44780_PARAM_ROWS
39#define HD44780_PARAM_ROWS (2U)
40#endif
41
42#ifndef MODULE_PCF857X
43
44#ifndef HD44780_PARAM_PIN_RS
45#define HD44780_PARAM_PIN_RS GPIO_PIN(0, 14) /* Arduino D2 */
46#endif
47#ifndef HD44780_PARAM_PIN_RW
48#define HD44780_PARAM_PIN_RW GPIO_UNDEF
49#endif
50#ifndef HD44780_PARAM_PIN_ENABLE
51#define HD44780_PARAM_PIN_ENABLE GPIO_PIN(0, 9) /* Arduino D3 */
52#endif
53#ifndef HD44780_PARAM_PINS_DATA
54#define HD44780_PARAM_PINS_DATA { GPIO_PIN(0, 8), /* Arduino D4 */ \
55 GPIO_PIN(0, 15), /* Arduino D5 */ \
56 GPIO_PIN(0, 20), /* Arduino D6 */ \
57 GPIO_PIN(0, 21), /* Arduino D7 */ \
58 GPIO_UNDEF, \
59 GPIO_UNDEF, \
60 GPIO_UNDEF, \
61 GPIO_UNDEF }
62#endif
63
64#else /* !MODULE_PCF857X */
65
66#ifndef HD44780_PARAM_PIN_RS
67#define HD44780_PARAM_PIN_RS PCF857X_GPIO_PIN(0, 0) /* Bit 0 */
68#endif
69#ifndef HD44780_PARAM_PIN_RW
70#define HD44780_PARAM_PIN_RW PCF857X_GPIO_PIN(0, 1) /* Bit 1 */
71#endif
72#ifndef HD44780_PARAM_PIN_ENABLE
73#define HD44780_PARAM_PIN_ENABLE PCF857X_GPIO_PIN(0, 2) /* Bit 2 */
74#endif
75#ifndef HD44780_PARAM_PINS_DATA
76#define HD44780_PARAM_PINS_DATA { PCF857X_GPIO_PIN(0, 4), /* Bit 4 */ \
77 PCF857X_GPIO_PIN(0, 5), /* Bit 5 */ \
78 PCF857X_GPIO_PIN(0, 6), /* Bit 6 */ \
79 PCF857X_GPIO_PIN(0, 7), /* Bit 7 */ \
80 GPIO_UNDEF, \
81 GPIO_UNDEF, \
82 GPIO_UNDEF, \
83 GPIO_UNDEF }
84#endif
85
86#endif /* !MODULE_PCF857X */
87
88#ifndef HD44780_PARAMS
89#define HD44780_PARAMS { .cols = HD44780_PARAM_COLS, \
90 .rows = HD44780_PARAM_ROWS, \
91 .rs = HD44780_PARAM_PIN_RS, \
92 .rw = HD44780_PARAM_PIN_RW, \
93 .enable = HD44780_PARAM_PIN_ENABLE, \
94 .data = HD44780_PARAM_PINS_DATA }
95#endif
96
100static const hd44780_params_t hd44780_params[] =
101{
102 HD44780_PARAMS,
103};
104
105#ifdef __cplusplus
106}
107#endif
108
109#endif /* HD44780_PARAMS_H */
gpio.h
Low-level GPIO peripheral driver interface definitions.
hd44780_params
static const hd44780_params_t hd44780_params[]
LCM1602C configuration.
Definition hd44780_params.h:100
hd44780_params_t
Parameters needed for device initialization.
Definition hd44780.h:60