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mbed w/ spi bug fig

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targets/cmsis/TARGET_STM/TARGET_DISCO_F407VG/stm32f4xx_hal_gpio.c@242:7074e42da0b2, 2014-06-27 (annotated)

Committer:
mbed_official
Date:
Fri Jun 27 07:30:09 2014 +0100
Revision:
242:7074e42da0b2
Parent:
133:d4dda5c437f0 
Synchronized with git revision 124ef5e3add9e74a3221347a3fbeea7c8b3cf353



Full URL: https://github.com/mbedmicro/mbed/commit/124ef5e3add9e74a3221347a3fbeea7c8b3cf353/



[DISCO_F407VG] HAL update.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 133:d4dda5c437f0 1 /**
mbed_official 133:d4dda5c437f0 2 ******************************************************************************
mbed_official 133:d4dda5c437f0 3 * @file stm32f4xx_hal_gpio.c
mbed_official 133:d4dda5c437f0 4 * @author MCD Application Team
mbed_official 242:7074e42da0b2 5 * @version V1.1.0RC2
mbed_official 242:7074e42da0b2 6 * @date 14-May-2014
mbed_official 133:d4dda5c437f0 7 * @brief GPIO HAL module driver.
mbed_official 133:d4dda5c437f0 8 * This file provides firmware functions to manage the following
mbed_official 133:d4dda5c437f0 9 * functionalities of the General Purpose Input/Output (GPIO) peripheral:
mbed_official 133:d4dda5c437f0 10 * + Initialization and de-initialization functions
mbed_official 133:d4dda5c437f0 11 * + IO operation functions
mbed_official 242:7074e42da0b2 12 *
mbed_official 133:d4dda5c437f0 13 @verbatim
mbed_official 133:d4dda5c437f0 14 ==============================================================================
mbed_official 133:d4dda5c437f0 15 ##### GPIO Peripheral features #####
mbed_official 242:7074e42da0b2 16 ==============================================================================
mbed_official 133:d4dda5c437f0 17 [..]
mbed_official 133:d4dda5c437f0 18 (+) Each port bit of the general-purpose I/O (GPIO) ports can be individually
mbed_official 133:d4dda5c437f0 19 configured by software in several modes:
mbed_official 133:d4dda5c437f0 20 (++) Input mode
mbed_official 133:d4dda5c437f0 21 (++) Analog mode
mbed_official 133:d4dda5c437f0 22 (++) Output mode
mbed_official 133:d4dda5c437f0 23 (++) Alternate function mode
mbed_official 133:d4dda5c437f0 24 (++) External interrupt/event lines
mbed_official 242:7074e42da0b2 25
mbed_official 133:d4dda5c437f0 26 (+) During and just after reset, the alternate functions and external interrupt
mbed_official 133:d4dda5c437f0 27 lines are not active and the I/O ports are configured in input floating mode.
mbed_official 133:d4dda5c437f0 28
mbed_official 133:d4dda5c437f0 29 (+) All GPIO pins have weak internal pull-up and pull-down resistors, which can be
mbed_official 133:d4dda5c437f0 30 activated or not.
mbed_official 133:d4dda5c437f0 31
mbed_official 133:d4dda5c437f0 32 (+) In Output or Alternate mode, each IO can be configured on open-drain or push-pull
mbed_official 133:d4dda5c437f0 33 type and the IO speed can be selected depending on the VDD value.
mbed_official 242:7074e42da0b2 34
mbed_official 133:d4dda5c437f0 35 (+) The microcontroller IO pins are connected to onboard peripherals/modules through a
mbed_official 133:d4dda5c437f0 36 multiplexer that allows only one peripheral alternate function (AF) connected
mbed_official 133:d4dda5c437f0 37 to an IO pin at a time. In this way, there can be no conflict between peripherals
mbed_official 133:d4dda5c437f0 38 sharing the same IO pin.
mbed_official 242:7074e42da0b2 39
mbed_official 133:d4dda5c437f0 40 (+) All ports have external interrupt/event capability. To use external interrupt
mbed_official 133:d4dda5c437f0 41 lines, the port must be configured in input mode. All available GPIO pins are
mbed_official 133:d4dda5c437f0 42 connected to the 16 external interrupt/event lines from EXTI0 to EXTI15.
mbed_official 242:7074e42da0b2 43
mbed_official 133:d4dda5c437f0 44 (+) The external interrupt/event controller consists of up to 23 edge detectors
mbed_official 133:d4dda5c437f0 45 (16 lines are connected to GPIO) for generating event/interrupt requests (each
mbed_official 133:d4dda5c437f0 46 input line can be independently configured to select the type (interrupt or event)
mbed_official 133:d4dda5c437f0 47 and the corresponding trigger event (rising or falling or both). Each line can
mbed_official 133:d4dda5c437f0 48 also be masked independently.
mbed_official 242:7074e42da0b2 49
mbed_official 133:d4dda5c437f0 50 ##### How to use this driver #####
mbed_official 133:d4dda5c437f0 51 ==============================================================================
mbed_official 242:7074e42da0b2 52 [..]
mbed_official 133:d4dda5c437f0 53 (#) Enable the GPIO AHB clock using the following function: __GPIOx_CLK_ENABLE().
mbed_official 242:7074e42da0b2 54
mbed_official 133:d4dda5c437f0 55 (#) Configure the GPIO pin(s) using HAL_GPIO_Init().
mbed_official 133:d4dda5c437f0 56 (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure
mbed_official 133:d4dda5c437f0 57 (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef
mbed_official 133:d4dda5c437f0 58 structure.
mbed_official 133:d4dda5c437f0 59 (++) In case of Output or alternate function mode selection: the speed is
mbed_official 133:d4dda5c437f0 60 configured through "Speed" member from GPIO_InitTypeDef structure.
mbed_official 133:d4dda5c437f0 61 (++) In alternate mode is selection, the alternate function connected to the IO
mbed_official 133:d4dda5c437f0 62 is configured through "Alternate" member from GPIO_InitTypeDef structure.
mbed_official 133:d4dda5c437f0 63 (++) Analog mode is required when a pin is to be used as ADC channel
mbed_official 133:d4dda5c437f0 64 or DAC output.
mbed_official 133:d4dda5c437f0 65 (++) In case of external interrupt/event selection the "Mode" member from
mbed_official 133:d4dda5c437f0 66 GPIO_InitTypeDef structure select the type (interrupt or event) and
mbed_official 133:d4dda5c437f0 67 the corresponding trigger event (rising or falling or both).
mbed_official 242:7074e42da0b2 68
mbed_official 133:d4dda5c437f0 69 (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority
mbed_official 133:d4dda5c437f0 70 mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using
mbed_official 133:d4dda5c437f0 71 HAL_NVIC_EnableIRQ().
mbed_official 133:d4dda5c437f0 72
mbed_official 133:d4dda5c437f0 73 (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin().
mbed_official 133:d4dda5c437f0 74
mbed_official 133:d4dda5c437f0 75 (#) To set/reset the level of a pin configured in output mode use
mbed_official 133:d4dda5c437f0 76 HAL_GPIO_WritePin()/HAL_GPIO_TogglePin().
mbed_official 133:d4dda5c437f0 77
mbed_official 133:d4dda5c437f0 78 (#) During and just after reset, the alternate functions are not
mbed_official 133:d4dda5c437f0 79 active and the GPIO pins are configured in input floating mode (except JTAG
mbed_official 133:d4dda5c437f0 80 pins).
mbed_official 133:d4dda5c437f0 81
mbed_official 133:d4dda5c437f0 82 (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose
mbed_official 133:d4dda5c437f0 83 (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has
mbed_official 133:d4dda5c437f0 84 priority over the GPIO function.
mbed_official 133:d4dda5c437f0 85
mbed_official 133:d4dda5c437f0 86 (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as
mbed_official 133:d4dda5c437f0 87 general purpose PH0 and PH1, respectively, when the HSE oscillator is off.
mbed_official 133:d4dda5c437f0 88 The HSE has priority over the GPIO function.
mbed_official 133:d4dda5c437f0 89
mbed_official 133:d4dda5c437f0 90 @endverbatim
mbed_official 133:d4dda5c437f0 91 ******************************************************************************
mbed_official 133:d4dda5c437f0 92 * @attention
mbed_official 133:d4dda5c437f0 93 *
mbed_official 133:d4dda5c437f0 94 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 133:d4dda5c437f0 95 *
mbed_official 133:d4dda5c437f0 96 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 133:d4dda5c437f0 97 * are permitted provided that the following conditions are met:
mbed_official 133:d4dda5c437f0 98 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 133:d4dda5c437f0 99 * this list of conditions and the following disclaimer.
mbed_official 133:d4dda5c437f0 100 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 133:d4dda5c437f0 101 * this list of conditions and the following disclaimer in the documentation
mbed_official 133:d4dda5c437f0 102 * and/or other materials provided with the distribution.
mbed_official 133:d4dda5c437f0 103 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 133:d4dda5c437f0 104 * may be used to endorse or promote products derived from this software
mbed_official 133:d4dda5c437f0 105 * without specific prior written permission.
mbed_official 133:d4dda5c437f0 106 *
mbed_official 133:d4dda5c437f0 107 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 133:d4dda5c437f0 108 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 133:d4dda5c437f0 109 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 133:d4dda5c437f0 110 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 133:d4dda5c437f0 111 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 133:d4dda5c437f0 112 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 133:d4dda5c437f0 113 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 133:d4dda5c437f0 114 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 133:d4dda5c437f0 115 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 133:d4dda5c437f0 116 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 133:d4dda5c437f0 117 *
mbed_official 133:d4dda5c437f0 118 ******************************************************************************
mbed_official 133:d4dda5c437f0 119 */
mbed_official 133:d4dda5c437f0 120
mbed_official 133:d4dda5c437f0 121 /* Includes ------------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 122 #include "stm32f4xx_hal.h"
mbed_official 133:d4dda5c437f0 123
mbed_official 133:d4dda5c437f0 124 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 133:d4dda5c437f0 125 * @{
mbed_official 133:d4dda5c437f0 126 */
mbed_official 133:d4dda5c437f0 127
mbed_official 133:d4dda5c437f0 128 /** @defgroup GPIO
mbed_official 133:d4dda5c437f0 129 * @brief GPIO HAL module driver
mbed_official 133:d4dda5c437f0 130 * @{
mbed_official 133:d4dda5c437f0 131 */
mbed_official 133:d4dda5c437f0 132
mbed_official 133:d4dda5c437f0 133 #ifdef HAL_GPIO_MODULE_ENABLED
mbed_official 133:d4dda5c437f0 134
mbed_official 133:d4dda5c437f0 135 /* Private typedef -----------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 136 /* Private define ------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 137 /* Private macro -------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 138 #define __HAL_GET_GPIO_SOURCE(__GPIOx__) \
mbed_official 133:d4dda5c437f0 139 (((uint32_t)(__GPIOx__) == ((uint32_t)GPIOA_BASE))? (uint32_t)0 :\
mbed_official 133:d4dda5c437f0 140 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x0400)))? (uint32_t)1 :\
mbed_official 133:d4dda5c437f0 141 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x0800)))? (uint32_t)2 :\
mbed_official 133:d4dda5c437f0 142 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x0C00)))? (uint32_t)3 :\
mbed_official 133:d4dda5c437f0 143 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x1000)))? (uint32_t)4 :\
mbed_official 133:d4dda5c437f0 144 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x1400)))? (uint32_t)5 :\
mbed_official 133:d4dda5c437f0 145 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x1800)))? (uint32_t)6 :\
mbed_official 133:d4dda5c437f0 146 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x1C00)))? (uint32_t)7 :\
mbed_official 133:d4dda5c437f0 147 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x2000)))? (uint32_t)8 :\
mbed_official 133:d4dda5c437f0 148 ((uint32_t)(__GPIOx__) == ((uint32_t)(GPIOA_BASE + 0x2400)))? (uint32_t)9 : (uint32_t)10)
mbed_official 133:d4dda5c437f0 149
mbed_official 133:d4dda5c437f0 150 #define GPIO_MODE ((uint32_t)0x00000003)
mbed_official 133:d4dda5c437f0 151 #define EXTI_MODE ((uint32_t)0x10000000)
mbed_official 133:d4dda5c437f0 152 #define GPIO_MODE_IT ((uint32_t)0x00010000)
mbed_official 133:d4dda5c437f0 153 #define GPIO_MODE_EVT ((uint32_t)0x00020000)
mbed_official 133:d4dda5c437f0 154 #define RISING_EDGE ((uint32_t)0x00100000)
mbed_official 133:d4dda5c437f0 155 #define FALLING_EDGE ((uint32_t)0x00200000)
mbed_official 133:d4dda5c437f0 156 #define GPIO_OUTPUT_TYPE ((uint32_t)0x00000010)
mbed_official 133:d4dda5c437f0 157
mbed_official 133:d4dda5c437f0 158 #define GPIO_NUMBER ((uint32_t)16)
mbed_official 133:d4dda5c437f0 159 /* Private variables ---------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 160 /* Private function prototypes -----------------------------------------------*/
mbed_official 133:d4dda5c437f0 161 /* Private functions ---------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 162
mbed_official 133:d4dda5c437f0 163 /** @defgroup GPIO_Private_Functions
mbed_official 133:d4dda5c437f0 164 * @{
mbed_official 133:d4dda5c437f0 165 */
mbed_official 133:d4dda5c437f0 166
mbed_official 133:d4dda5c437f0 167 /** @defgroup GPIO_Group1 Initialization and de-initialization functions
mbed_official 133:d4dda5c437f0 168 * @brief Initialization and Configuration functions
mbed_official 133:d4dda5c437f0 169 *
mbed_official 133:d4dda5c437f0 170 @verbatim
mbed_official 133:d4dda5c437f0 171 ===============================================================================
mbed_official 133:d4dda5c437f0 172 ##### Initialization and de-initialization functions #####
mbed_official 133:d4dda5c437f0 173 ===============================================================================
mbed_official 133:d4dda5c437f0 174
mbed_official 133:d4dda5c437f0 175 @endverbatim
mbed_official 133:d4dda5c437f0 176 * @{
mbed_official 133:d4dda5c437f0 177 */
mbed_official 133:d4dda5c437f0 178
mbed_official 133:d4dda5c437f0 179 /**
mbed_official 133:d4dda5c437f0 180 * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init.
mbed_official 133:d4dda5c437f0 181 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
mbed_official 133:d4dda5c437f0 182 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
mbed_official 133:d4dda5c437f0 183 * @param GPIO_Init: pointer to a GPIO_InitTypeDef structure that contains
mbed_official 133:d4dda5c437f0 184 * the configuration information for the specified GPIO peripheral.
mbed_official 133:d4dda5c437f0 185 * @retval None
mbed_official 133:d4dda5c437f0 186 */
mbed_official 133:d4dda5c437f0 187 void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init)
mbed_official 133:d4dda5c437f0 188 {
mbed_official 133:d4dda5c437f0 189 uint32_t position;
mbed_official 133:d4dda5c437f0 190 uint32_t ioposition = 0x00;
mbed_official 133:d4dda5c437f0 191 uint32_t iocurrent = 0x00;
mbed_official 133:d4dda5c437f0 192 uint32_t temp = 0x00;
mbed_official 133:d4dda5c437f0 193
mbed_official 133:d4dda5c437f0 194 /* Check the parameters */
mbed_official 133:d4dda5c437f0 195 assert_param(IS_GPIO_PIN(GPIO_Init->Pin));
mbed_official 133:d4dda5c437f0 196 assert_param(IS_GPIO_MODE(GPIO_Init->Mode));
mbed_official 133:d4dda5c437f0 197 assert_param(IS_GPIO_PULL(GPIO_Init->Pull));
mbed_official 133:d4dda5c437f0 198
mbed_official 133:d4dda5c437f0 199 /* Configure the port pins */
mbed_official 133:d4dda5c437f0 200 for(position = 0; position < GPIO_NUMBER; position++)
mbed_official 133:d4dda5c437f0 201 {
mbed_official 133:d4dda5c437f0 202 /* Get the IO position */
mbed_official 133:d4dda5c437f0 203 ioposition = ((uint32_t)0x01) << position;
mbed_official 133:d4dda5c437f0 204 /* Get the current IO position */
mbed_official 133:d4dda5c437f0 205 iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition;
mbed_official 133:d4dda5c437f0 206
mbed_official 133:d4dda5c437f0 207 if(iocurrent == ioposition)
mbed_official 133:d4dda5c437f0 208 {
mbed_official 133:d4dda5c437f0 209 /*--------------------- GPIO Mode Configuration ------------------------*/
mbed_official 133:d4dda5c437f0 210 /* In case of Alternate function mode selection */
mbed_official 133:d4dda5c437f0 211 if((GPIO_Init->Mode == GPIO_MODE_AF_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_OD))
mbed_official 133:d4dda5c437f0 212 {
mbed_official 133:d4dda5c437f0 213 /* Check the Alternate function parameter */
mbed_official 133:d4dda5c437f0 214 assert_param(IS_GPIO_AF(GPIO_Init->Alternate));
mbed_official 133:d4dda5c437f0 215 /* Configure Alternate function mapped with the current IO */
mbed_official 242:7074e42da0b2 216 temp = GPIOx->AFR[position >> 3];
mbed_official 242:7074e42da0b2 217 temp &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
mbed_official 242:7074e42da0b2 218 temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & (uint32_t)0x07) * 4));
mbed_official 242:7074e42da0b2 219 GPIOx->AFR[position >> 3] = temp;
mbed_official 133:d4dda5c437f0 220 }
mbed_official 133:d4dda5c437f0 221
mbed_official 133:d4dda5c437f0 222 /* Configure IO Direction mode (Input, Output, Alternate or Analog) */
mbed_official 242:7074e42da0b2 223 temp = GPIOx->MODER;
mbed_official 242:7074e42da0b2 224 temp &= ~(GPIO_MODER_MODER0 << (position * 2));
mbed_official 242:7074e42da0b2 225 temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2));
mbed_official 242:7074e42da0b2 226 GPIOx->MODER = temp;
mbed_official 133:d4dda5c437f0 227
mbed_official 133:d4dda5c437f0 228 /* In case of Output or Alternate function mode selection */
mbed_official 133:d4dda5c437f0 229 if((GPIO_Init->Mode == GPIO_MODE_OUTPUT_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_PP) ||
mbed_official 133:d4dda5c437f0 230 (GPIO_Init->Mode == GPIO_MODE_OUTPUT_OD) || (GPIO_Init->Mode == GPIO_MODE_AF_OD))
mbed_official 133:d4dda5c437f0 231 {
mbed_official 133:d4dda5c437f0 232 /* Check the Speed parameter */
mbed_official 133:d4dda5c437f0 233 assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
mbed_official 133:d4dda5c437f0 234 /* Configure the IO Speed */
mbed_official 242:7074e42da0b2 235 temp = GPIOx->OSPEEDR;
mbed_official 242:7074e42da0b2 236 temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
mbed_official 242:7074e42da0b2 237 temp |= (GPIO_Init->Speed << (position * 2));
mbed_official 242:7074e42da0b2 238 GPIOx->OSPEEDR = temp;
mbed_official 133:d4dda5c437f0 239
mbed_official 133:d4dda5c437f0 240 /* Configure the IO Output Type */
mbed_official 242:7074e42da0b2 241 temp = GPIOx->OTYPER;
mbed_official 242:7074e42da0b2 242 temp &= ~(GPIO_OTYPER_OT_0 << position) ;
mbed_official 242:7074e42da0b2 243 temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4) << position);
mbed_official 242:7074e42da0b2 244 GPIOx->OTYPER = temp;
mbed_official 133:d4dda5c437f0 245 }
mbed_official 133:d4dda5c437f0 246
mbed_official 133:d4dda5c437f0 247 /* Activate the Pull-up or Pull down resistor for the current IO */
mbed_official 242:7074e42da0b2 248 temp = GPIOx->PUPDR;
mbed_official 242:7074e42da0b2 249 temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
mbed_official 242:7074e42da0b2 250 temp |= ((GPIO_Init->Pull) << (position * 2));
mbed_official 242:7074e42da0b2 251 GPIOx->PUPDR = temp;
mbed_official 133:d4dda5c437f0 252
mbed_official 133:d4dda5c437f0 253 /*--------------------- EXTI Mode Configuration ------------------------*/
mbed_official 133:d4dda5c437f0 254 /* Configure the External Interrupt or event for the current IO */
mbed_official 133:d4dda5c437f0 255 if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE)
mbed_official 133:d4dda5c437f0 256 {
mbed_official 133:d4dda5c437f0 257 /* Enable SYSCFG Clock */
mbed_official 133:d4dda5c437f0 258 __SYSCFG_CLK_ENABLE();
mbed_official 133:d4dda5c437f0 259
mbed_official 242:7074e42da0b2 260 temp = SYSCFG->EXTICR[position >> 2];
mbed_official 242:7074e42da0b2 261 temp &= ~(((uint32_t)0x0F) << (4 * (position & 0x03)));
mbed_official 242:7074e42da0b2 262 temp |= ((uint32_t)(__HAL_GET_GPIO_SOURCE(GPIOx)) << (4 * (position & 0x03)));
mbed_official 242:7074e42da0b2 263 SYSCFG->EXTICR[position >> 2] = temp;
mbed_official 242:7074e42da0b2 264
mbed_official 133:d4dda5c437f0 265 /* Clear EXTI line configuration */
mbed_official 242:7074e42da0b2 266 temp = EXTI->IMR;
mbed_official 242:7074e42da0b2 267 temp &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 268 if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
mbed_official 133:d4dda5c437f0 269 {
mbed_official 242:7074e42da0b2 270 temp |= iocurrent;
mbed_official 133:d4dda5c437f0 271 }
mbed_official 242:7074e42da0b2 272 EXTI->IMR = temp;
mbed_official 242:7074e42da0b2 273
mbed_official 242:7074e42da0b2 274 temp = EXTI->EMR;
mbed_official 242:7074e42da0b2 275 temp &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 276 if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT)
mbed_official 133:d4dda5c437f0 277 {
mbed_official 242:7074e42da0b2 278 temp |= iocurrent;
mbed_official 133:d4dda5c437f0 279 }
mbed_official 242:7074e42da0b2 280 EXTI->EMR = temp;
mbed_official 133:d4dda5c437f0 281
mbed_official 133:d4dda5c437f0 282 /* Clear Rising Falling edge configuration */
mbed_official 242:7074e42da0b2 283 temp = EXTI->RTSR;
mbed_official 242:7074e42da0b2 284 temp &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 285 if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE)
mbed_official 133:d4dda5c437f0 286 {
mbed_official 242:7074e42da0b2 287 temp |= iocurrent;
mbed_official 133:d4dda5c437f0 288 }
mbed_official 242:7074e42da0b2 289 EXTI->RTSR = temp;
mbed_official 242:7074e42da0b2 290
mbed_official 242:7074e42da0b2 291 temp = EXTI->FTSR;
mbed_official 242:7074e42da0b2 292 temp &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 293 if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE)
mbed_official 133:d4dda5c437f0 294 {
mbed_official 242:7074e42da0b2 295 temp |= iocurrent;
mbed_official 133:d4dda5c437f0 296 }
mbed_official 242:7074e42da0b2 297 EXTI->FTSR = temp;
mbed_official 133:d4dda5c437f0 298 }
mbed_official 133:d4dda5c437f0 299 }
mbed_official 133:d4dda5c437f0 300 }
mbed_official 133:d4dda5c437f0 301 }
mbed_official 133:d4dda5c437f0 302
mbed_official 133:d4dda5c437f0 303 /**
mbed_official 133:d4dda5c437f0 304 * @brief De-initializes the GPIOx peripheral registers to their default reset values.
mbed_official 133:d4dda5c437f0 305 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
mbed_official 133:d4dda5c437f0 306 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
mbed_official 133:d4dda5c437f0 307 * @param GPIO_Pin: specifies the port bit to be written.
mbed_official 133:d4dda5c437f0 308 * This parameter can be one of GPIO_PIN_x where x can be (0..15).
mbed_official 133:d4dda5c437f0 309 * @retval None
mbed_official 133:d4dda5c437f0 310 */
mbed_official 133:d4dda5c437f0 311 void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin)
mbed_official 133:d4dda5c437f0 312 {
mbed_official 133:d4dda5c437f0 313 uint32_t position;
mbed_official 133:d4dda5c437f0 314 uint32_t ioposition = 0x00;
mbed_official 133:d4dda5c437f0 315 uint32_t iocurrent = 0x00;
mbed_official 133:d4dda5c437f0 316 uint32_t tmp = 0x00;
mbed_official 133:d4dda5c437f0 317
mbed_official 133:d4dda5c437f0 318 /* Configure the port pins */
mbed_official 133:d4dda5c437f0 319 for(position = 0; position < GPIO_NUMBER; position++)
mbed_official 133:d4dda5c437f0 320 {
mbed_official 133:d4dda5c437f0 321 /* Get the IO position */
mbed_official 133:d4dda5c437f0 322 ioposition = ((uint32_t)0x01) << position;
mbed_official 133:d4dda5c437f0 323 /* Get the current IO position */
mbed_official 133:d4dda5c437f0 324 iocurrent = (GPIO_Pin) & ioposition;
mbed_official 133:d4dda5c437f0 325
mbed_official 133:d4dda5c437f0 326 if(iocurrent == ioposition)
mbed_official 133:d4dda5c437f0 327 {
mbed_official 133:d4dda5c437f0 328 /*------------------------- GPIO Mode Configuration --------------------*/
mbed_official 133:d4dda5c437f0 329 /* Configure IO Direction in Input Floting Mode */
mbed_official 133:d4dda5c437f0 330 GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2));
mbed_official 133:d4dda5c437f0 331
mbed_official 133:d4dda5c437f0 332 /* Configure the default Alternate Function in current IO */
mbed_official 133:d4dda5c437f0 333 GPIOx->AFR[position >> 3] &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
mbed_official 133:d4dda5c437f0 334
mbed_official 133:d4dda5c437f0 335 /* Configure the default value for IO Speed */
mbed_official 133:d4dda5c437f0 336 GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
mbed_official 133:d4dda5c437f0 337
mbed_official 133:d4dda5c437f0 338 /* Configure the default value IO Output Type */
mbed_official 133:d4dda5c437f0 339 GPIOx->OTYPER &= ~(GPIO_OTYPER_OT_0 << position) ;
mbed_official 133:d4dda5c437f0 340
mbed_official 133:d4dda5c437f0 341 /* Deactivate the Pull-up oand Pull-down resistor for the current IO */
mbed_official 133:d4dda5c437f0 342 GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
mbed_official 133:d4dda5c437f0 343
mbed_official 133:d4dda5c437f0 344 /*------------------------- EXTI Mode Configuration --------------------*/
mbed_official 133:d4dda5c437f0 345 /* Configure the External Interrupt or event for the current IO */
mbed_official 133:d4dda5c437f0 346 tmp = ((uint32_t)0x0F) << (4 * (position & 0x03));
mbed_official 133:d4dda5c437f0 347 SYSCFG->EXTICR[position >> 2] &= ~tmp;
mbed_official 133:d4dda5c437f0 348
mbed_official 133:d4dda5c437f0 349 /* Clear EXTI line configuration */
mbed_official 133:d4dda5c437f0 350 EXTI->IMR &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 351 EXTI->EMR &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 352
mbed_official 133:d4dda5c437f0 353 /* Clear Rising Falling edge configuration */
mbed_official 133:d4dda5c437f0 354 EXTI->RTSR &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 355 EXTI->FTSR &= ~((uint32_t)iocurrent);
mbed_official 133:d4dda5c437f0 356 }
mbed_official 133:d4dda5c437f0 357 }
mbed_official 133:d4dda5c437f0 358 }
mbed_official 133:d4dda5c437f0 359
mbed_official 133:d4dda5c437f0 360 /**
mbed_official 133:d4dda5c437f0 361 * @}
mbed_official 133:d4dda5c437f0 362 */
mbed_official 133:d4dda5c437f0 363
mbed_official 133:d4dda5c437f0 364 /** @defgroup GPIO_Group2 IO operation functions
mbed_official 133:d4dda5c437f0 365 * @brief GPIO Read and Write
mbed_official 133:d4dda5c437f0 366 *
mbed_official 133:d4dda5c437f0 367 @verbatim
mbed_official 133:d4dda5c437f0 368 ===============================================================================
mbed_official 133:d4dda5c437f0 369 ##### IO operation functions #####
mbed_official 133:d4dda5c437f0 370 ===============================================================================
mbed_official 133:d4dda5c437f0 371
mbed_official 133:d4dda5c437f0 372 @endverbatim
mbed_official 133:d4dda5c437f0 373 * @{
mbed_official 133:d4dda5c437f0 374 */
mbed_official 133:d4dda5c437f0 375
mbed_official 133:d4dda5c437f0 376 /**
mbed_official 133:d4dda5c437f0 377 * @brief Reads the specified input port pin.
mbed_official 133:d4dda5c437f0 378 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
mbed_official 133:d4dda5c437f0 379 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
mbed_official 133:d4dda5c437f0 380 * @param GPIO_Pin: specifies the port bit to read.
mbed_official 133:d4dda5c437f0 381 * This parameter can be GPIO_PIN_x where x can be (0..15).
mbed_official 133:d4dda5c437f0 382 * @retval The input port pin value.
mbed_official 133:d4dda5c437f0 383 */
mbed_official 133:d4dda5c437f0 384 GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 133:d4dda5c437f0 385 {
mbed_official 133:d4dda5c437f0 386 GPIO_PinState bitstatus;
mbed_official 133:d4dda5c437f0 387
mbed_official 133:d4dda5c437f0 388 /* Check the parameters */
mbed_official 133:d4dda5c437f0 389 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 133:d4dda5c437f0 390
mbed_official 133:d4dda5c437f0 391 if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET)
mbed_official 133:d4dda5c437f0 392 {
mbed_official 133:d4dda5c437f0 393 bitstatus = GPIO_PIN_SET;
mbed_official 133:d4dda5c437f0 394 }
mbed_official 133:d4dda5c437f0 395 else
mbed_official 133:d4dda5c437f0 396 {
mbed_official 133:d4dda5c437f0 397 bitstatus = GPIO_PIN_RESET;
mbed_official 133:d4dda5c437f0 398 }
mbed_official 133:d4dda5c437f0 399 return bitstatus;
mbed_official 133:d4dda5c437f0 400 }
mbed_official 133:d4dda5c437f0 401
mbed_official 133:d4dda5c437f0 402 /**
mbed_official 133:d4dda5c437f0 403 * @brief Sets or clears the selected data port bit.
mbed_official 133:d4dda5c437f0 404 *
mbed_official 133:d4dda5c437f0 405 * @note This function uses GPIOx_BSRR register to allow atomic read/modify
mbed_official 133:d4dda5c437f0 406 * accesses. In this way, there is no risk of an IRQ occurring between
mbed_official 133:d4dda5c437f0 407 * the read and the modify access.
mbed_official 133:d4dda5c437f0 408 *
mbed_official 133:d4dda5c437f0 409 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
mbed_official 133:d4dda5c437f0 410 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
mbed_official 133:d4dda5c437f0 411 * @param GPIO_Pin: specifies the port bit to be written.
mbed_official 133:d4dda5c437f0 412 * This parameter can be one of GPIO_PIN_x where x can be (0..15).
mbed_official 133:d4dda5c437f0 413 * @param PinState: specifies the value to be written to the selected bit.
mbed_official 133:d4dda5c437f0 414 * This parameter can be one of the GPIO_PinState enum values:
mbed_official 242:7074e42da0b2 415 * @arg GPIO_PIN_RESET: to clear the port pin
mbed_official 242:7074e42da0b2 416 * @arg GPIO_PIN_SET: to set the port pin
mbed_official 133:d4dda5c437f0 417 * @retval None
mbed_official 133:d4dda5c437f0 418 */
mbed_official 133:d4dda5c437f0 419 void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
mbed_official 133:d4dda5c437f0 420 {
mbed_official 133:d4dda5c437f0 421 /* Check the parameters */
mbed_official 133:d4dda5c437f0 422 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 133:d4dda5c437f0 423 assert_param(IS_GPIO_PIN_ACTION(PinState));
mbed_official 133:d4dda5c437f0 424
mbed_official 133:d4dda5c437f0 425 if(PinState != GPIO_PIN_RESET)
mbed_official 133:d4dda5c437f0 426 {
mbed_official 133:d4dda5c437f0 427 GPIOx->BSRRL = GPIO_Pin;
mbed_official 133:d4dda5c437f0 428 }
mbed_official 133:d4dda5c437f0 429 else
mbed_official 133:d4dda5c437f0 430 {
mbed_official 133:d4dda5c437f0 431 GPIOx->BSRRH = GPIO_Pin ;
mbed_official 133:d4dda5c437f0 432 }
mbed_official 133:d4dda5c437f0 433 }
mbed_official 133:d4dda5c437f0 434
mbed_official 133:d4dda5c437f0 435 /**
mbed_official 133:d4dda5c437f0 436 * @brief Toggles the specified GPIO pins.
mbed_official 133:d4dda5c437f0 437 * @param GPIOx: Where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
mbed_official 133:d4dda5c437f0 438 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
mbed_official 133:d4dda5c437f0 439 * @param GPIO_Pin: Specifies the pins to be toggled.
mbed_official 133:d4dda5c437f0 440 * @retval None
mbed_official 133:d4dda5c437f0 441 */
mbed_official 133:d4dda5c437f0 442 void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 133:d4dda5c437f0 443 {
mbed_official 133:d4dda5c437f0 444 /* Check the parameters */
mbed_official 133:d4dda5c437f0 445 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 133:d4dda5c437f0 446
mbed_official 133:d4dda5c437f0 447 GPIOx->ODR ^= GPIO_Pin;
mbed_official 133:d4dda5c437f0 448 }
mbed_official 133:d4dda5c437f0 449
mbed_official 133:d4dda5c437f0 450 /**
mbed_official 242:7074e42da0b2 451 * @brief Locks GPIO Pins configuration registers.
mbed_official 242:7074e42da0b2 452 * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
mbed_official 242:7074e42da0b2 453 * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
mbed_official 242:7074e42da0b2 454 * @note The configuration of the locked GPIO pins can no longer be modified
mbed_official 242:7074e42da0b2 455 * until the next reset.
mbed_official 242:7074e42da0b2 456 * @param GPIOx: where x can be (A..F) to select the GPIO peripheral for STM32F4 family
mbed_official 242:7074e42da0b2 457 * @param GPIO_Pin: specifies the port bit to be locked.
mbed_official 242:7074e42da0b2 458 * This parameter can be any combination of GPIO_PIN_x where x can be (0..15).
mbed_official 242:7074e42da0b2 459 * @retval None
mbed_official 242:7074e42da0b2 460 */
mbed_official 242:7074e42da0b2 461 HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 242:7074e42da0b2 462 {
mbed_official 242:7074e42da0b2 463 __IO uint32_t tmp = GPIO_LCKR_LCKK;
mbed_official 242:7074e42da0b2 464
mbed_official 242:7074e42da0b2 465 /* Check the parameters */
mbed_official 242:7074e42da0b2 466 assert_param(IS_GPIO_PIN(GPIO_Pin));
mbed_official 242:7074e42da0b2 467
mbed_official 242:7074e42da0b2 468 /* Apply lock key write sequence */
mbed_official 242:7074e42da0b2 469 tmp |= GPIO_Pin;
mbed_official 242:7074e42da0b2 470 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
mbed_official 242:7074e42da0b2 471 GPIOx->LCKR = tmp;
mbed_official 242:7074e42da0b2 472 /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */
mbed_official 242:7074e42da0b2 473 GPIOx->LCKR = GPIO_Pin;
mbed_official 242:7074e42da0b2 474 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
mbed_official 242:7074e42da0b2 475 GPIOx->LCKR = tmp;
mbed_official 242:7074e42da0b2 476 /* Read LCKK bit*/
mbed_official 242:7074e42da0b2 477 tmp = GPIOx->LCKR;
mbed_official 242:7074e42da0b2 478
mbed_official 242:7074e42da0b2 479 if(GPIOx->LCKR & GPIO_LCKR_LCKK)
mbed_official 242:7074e42da0b2 480 {
mbed_official 242:7074e42da0b2 481 return HAL_OK;
mbed_official 242:7074e42da0b2 482 }
mbed_official 242:7074e42da0b2 483 else
mbed_official 242:7074e42da0b2 484 {
mbed_official 242:7074e42da0b2 485 return HAL_ERROR;
mbed_official 242:7074e42da0b2 486 }
mbed_official 242:7074e42da0b2 487 }
mbed_official 242:7074e42da0b2 488
mbed_official 242:7074e42da0b2 489 /**
mbed_official 133:d4dda5c437f0 490 * @brief This function handles EXTI interrupt request.
mbed_official 133:d4dda5c437f0 491 * @param GPIO_Pin: Specifies the pins connected EXTI line
mbed_official 133:d4dda5c437f0 492 * @retval None
mbed_official 133:d4dda5c437f0 493 */
mbed_official 133:d4dda5c437f0 494 void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin)
mbed_official 133:d4dda5c437f0 495 {
mbed_official 133:d4dda5c437f0 496 /* EXTI line interrupt detected */
mbed_official 133:d4dda5c437f0 497 if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET)
mbed_official 133:d4dda5c437f0 498 {
mbed_official 133:d4dda5c437f0 499 __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
mbed_official 133:d4dda5c437f0 500 HAL_GPIO_EXTI_Callback(GPIO_Pin);
mbed_official 133:d4dda5c437f0 501 }
mbed_official 133:d4dda5c437f0 502 }
mbed_official 133:d4dda5c437f0 503
mbed_official 133:d4dda5c437f0 504 /**
mbed_official 133:d4dda5c437f0 505 * @brief EXTI line detection callbacks.
mbed_official 133:d4dda5c437f0 506 * @param GPIO_Pin: Specifies the pins connected EXTI line
mbed_official 133:d4dda5c437f0 507 * @retval None
mbed_official 133:d4dda5c437f0 508 */
mbed_official 133:d4dda5c437f0 509 __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
mbed_official 133:d4dda5c437f0 510 {
mbed_official 133:d4dda5c437f0 511 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 133:d4dda5c437f0 512 the HAL_GPIO_EXTI_Callback could be implemented in the user file
mbed_official 133:d4dda5c437f0 513 */
mbed_official 133:d4dda5c437f0 514 }
mbed_official 133:d4dda5c437f0 515
mbed_official 133:d4dda5c437f0 516 /**
mbed_official 133:d4dda5c437f0 517 * @}
mbed_official 133:d4dda5c437f0 518 */
mbed_official 133:d4dda5c437f0 519
mbed_official 133:d4dda5c437f0 520
mbed_official 133:d4dda5c437f0 521 /**
mbed_official 133:d4dda5c437f0 522 * @}
mbed_official 133:d4dda5c437f0 523 */
mbed_official 133:d4dda5c437f0 524
mbed_official 133:d4dda5c437f0 525 #endif /* HAL_GPIO_MODULE_ENABLED */
mbed_official 133:d4dda5c437f0 526 /**
mbed_official 133:d4dda5c437f0 527 * @}
mbed_official 133:d4dda5c437f0 528 */
mbed_official 133:d4dda5c437f0 529
mbed_official 133:d4dda5c437f0 530 /**
mbed_official 133:d4dda5c437f0 531 * @}
mbed_official 133:d4dda5c437f0 532 */
mbed_official 133:d4dda5c437f0 533
mbed_official 133:d4dda5c437f0 534 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/