libopencm3
A free/libre/open-source firmware library for various ARM Cortex-M3 microcontrollers.
l4/gpio.h
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1/** @defgroup gpio_defines GPIO Defines
2 *
3 * @brief <b>Defined Constants and Types for the STM32L4xx General Purpose I/O</b>
4 *
5 * @ingroup STM32L4xx_defines
6 *
7 * @version 1.0.0
8 *
9 * @date 12 November 2015
10 *
11 * LGPL License Terms @ref lgpl_license
12 */
13
14/*
15 * This file is part of the libopencm3 project.
16 *
17 * This library is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU Lesser General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
21 *
22 * This library is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU Lesser General Public License for more details.
26 *
27 * You should have received a copy of the GNU Lesser General Public License
28 * along with this library. If not, see <http://www.gnu.org/licenses/>.
29 */
30
31/**@{*/
32#ifndef LIBOPENCM3_GPIO_H
33#define LIBOPENCM3_GPIO_H
34
36
37/*****************************************************************************/
38/* Module definitions */
39/*****************************************************************************/
40
41/*****************************************************************************/
42/* Register definitions */
43/*****************************************************************************/
44
45#define GPIO_BRR(port) MMIO32((port) + 0x28)
46#define GPIOA_BRR GPIO_BRR(GPIOA)
47#define GPIOB_BRR GPIO_BRR(GPIOB)
48#define GPIOC_BRR GPIO_BRR(GPIOC)
49#define GPIOD_BRR GPIO_BRR(GPIOD)
50#define GPIOE_BRR GPIO_BRR(GPIOE)
51#define GPIOF_BRR GPIO_BRR(GPIOF)
52#define GPIOG_BRR GPIO_BRR(GPIOG)
53#define GPIOH_BRR GPIO_BRR(GPIOH)
54
55/* Analog Switch Control Register */
56#define GPIO_ASCR(port) MMIO32((port) + 0x2c)
57#define GPIOA_ASCR GPIO_ASCR(GPIOA)
58#define GPIOB_ASCR GPIO_ASCR(GPIOB)
59#define GPIOC_ASCR GPIO_ASCR(GPIOC)
60#define GPIOD_ASCR GPIO_ASCR(GPIOD)
61#define GPIOE_ASCR GPIO_ASCR(GPIOE)
62#define GPIOF_ASCR GPIO_ASCR(GPIOF)
63#define GPIOG_ASCR GPIO_ASCR(GPIOG)
64#define GPIOH_ASCR GPIO_ASCR(GPIOH)
65
66/*****************************************************************************/
67/* Register values */
68/*****************************************************************************/
69
70/** @defgroup gpio_speed GPIO Output Pin Speed
71@ingroup gpio_defines
72@{*/
73#define GPIO_OSPEED_LOW 0x0
74#define GPIO_OSPEED_MED 0x1
75#define GPIO_OSPEED_HIGH 0x2
76#define GPIO_OSPEED_VERYHIGH 0x3
77/**@}*/
78
79/*****************************************************************************/
80/* API definitions */
81/*****************************************************************************/
82
83/*****************************************************************************/
84/* API Functions */
85/*****************************************************************************/
86
88
90
91#endif
92/**@}*/
#define END_DECLS
Definition: common.h:34
#define BEGIN_DECLS
Definition: common.h:33