en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_gpio.c@19:112740acecfa, 2015-11-10 (annotated)

Committer:
mbed_official
Date:
Tue Nov 10 09:30:11 2015 +0000
Revision:
19:112740acecfa
Parent:
0:9b334a45a8ff 
Synchronized with git revision 7218418919aeaf775fb8d386ea7ee0dfc0c80ff9



Full URL: https://github.com/mbedmicro/mbed/commit/7218418919aeaf775fb8d386ea7ee0dfc0c80ff9/



DISCO_F469NI - add disco F469NI support

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f4xx_hal_gpio.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 19:112740acecfa 5 * @version V1.4.1
mbed_official 19:112740acecfa 6 * @date 09-October-2015
bogdanm 0:9b334a45a8ff 7 * @brief GPIO HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the General Purpose Input/Output (GPIO) peripheral:
bogdanm 0:9b334a45a8ff 10 * + Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 11 * + IO operation functions
bogdanm 0:9b334a45a8ff 12 *
bogdanm 0:9b334a45a8ff 13 @verbatim
bogdanm 0:9b334a45a8ff 14 ==============================================================================
bogdanm 0:9b334a45a8ff 15 ##### GPIO Peripheral features #####
bogdanm 0:9b334a45a8ff 16 ==============================================================================
bogdanm 0:9b334a45a8ff 17 [..]
bogdanm 0:9b334a45a8ff 18 Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each
bogdanm 0:9b334a45a8ff 19 port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software
bogdanm 0:9b334a45a8ff 20 in several modes:
bogdanm 0:9b334a45a8ff 21 (+) Input mode
bogdanm 0:9b334a45a8ff 22 (+) Analog mode
bogdanm 0:9b334a45a8ff 23 (+) Output mode
bogdanm 0:9b334a45a8ff 24 (+) Alternate function mode
bogdanm 0:9b334a45a8ff 25 (+) External interrupt/event lines
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 [..]
bogdanm 0:9b334a45a8ff 28 During and just after reset, the alternate functions and external interrupt
bogdanm 0:9b334a45a8ff 29 lines are not active and the I/O ports are configured in input floating mode.
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 [..]
bogdanm 0:9b334a45a8ff 32 All GPIO pins have weak internal pull-up and pull-down resistors, which can be
bogdanm 0:9b334a45a8ff 33 activated or not.
bogdanm 0:9b334a45a8ff 34
bogdanm 0:9b334a45a8ff 35 [..]
bogdanm 0:9b334a45a8ff 36 In Output or Alternate mode, each IO can be configured on open-drain or push-pull
bogdanm 0:9b334a45a8ff 37 type and the IO speed can be selected depending on the VDD value.
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 [..]
bogdanm 0:9b334a45a8ff 40 All ports have external interrupt/event capability. To use external interrupt
bogdanm 0:9b334a45a8ff 41 lines, the port must be configured in input mode. All available GPIO pins are
bogdanm 0:9b334a45a8ff 42 connected to the 16 external interrupt/event lines from EXTI0 to EXTI15.
bogdanm 0:9b334a45a8ff 43
bogdanm 0:9b334a45a8ff 44 [..]
bogdanm 0:9b334a45a8ff 45 The external interrupt/event controller consists of up to 23 edge detectors
bogdanm 0:9b334a45a8ff 46 (16 lines are connected to GPIO) for generating event/interrupt requests (each
bogdanm 0:9b334a45a8ff 47 input line can be independently configured to select the type (interrupt or event)
bogdanm 0:9b334a45a8ff 48 and the corresponding trigger event (rising or falling or both). Each line can
bogdanm 0:9b334a45a8ff 49 also be masked independently.
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 52 ==============================================================================
bogdanm 0:9b334a45a8ff 53 [..]
bogdanm 0:9b334a45a8ff 54 (#) Enable the GPIO AHB clock using the following function: __HAL_RCC_GPIOx_CLK_ENABLE().
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 (#) Configure the GPIO pin(s) using HAL_GPIO_Init().
bogdanm 0:9b334a45a8ff 57 (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure
bogdanm 0:9b334a45a8ff 58 (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef
bogdanm 0:9b334a45a8ff 59 structure.
bogdanm 0:9b334a45a8ff 60 (++) In case of Output or alternate function mode selection: the speed is
bogdanm 0:9b334a45a8ff 61 configured through "Speed" member from GPIO_InitTypeDef structure.
bogdanm 0:9b334a45a8ff 62 (++) In alternate mode is selection, the alternate function connected to the IO
bogdanm 0:9b334a45a8ff 63 is configured through "Alternate" member from GPIO_InitTypeDef structure.
bogdanm 0:9b334a45a8ff 64 (++) Analog mode is required when a pin is to be used as ADC channel
bogdanm 0:9b334a45a8ff 65 or DAC output.
bogdanm 0:9b334a45a8ff 66 (++) In case of external interrupt/event selection the "Mode" member from
bogdanm 0:9b334a45a8ff 67 GPIO_InitTypeDef structure select the type (interrupt or event) and
bogdanm 0:9b334a45a8ff 68 the corresponding trigger event (rising or falling or both).
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority
bogdanm 0:9b334a45a8ff 71 mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using
bogdanm 0:9b334a45a8ff 72 HAL_NVIC_EnableIRQ().
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin().
bogdanm 0:9b334a45a8ff 75
bogdanm 0:9b334a45a8ff 76 (#) To set/reset the level of a pin configured in output mode use
bogdanm 0:9b334a45a8ff 77 HAL_GPIO_WritePin()/HAL_GPIO_TogglePin().
bogdanm 0:9b334a45a8ff 78
bogdanm 0:9b334a45a8ff 79 (#) To lock pin configuration until next reset use HAL_GPIO_LockPin().
bogdanm 0:9b334a45a8ff 80
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 (#) During and just after reset, the alternate functions are not
bogdanm 0:9b334a45a8ff 83 active and the GPIO pins are configured in input floating mode (except JTAG
bogdanm 0:9b334a45a8ff 84 pins).
bogdanm 0:9b334a45a8ff 85
bogdanm 0:9b334a45a8ff 86 (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose
bogdanm 0:9b334a45a8ff 87 (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has
bogdanm 0:9b334a45a8ff 88 priority over the GPIO function.
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as
bogdanm 0:9b334a45a8ff 91 general purpose PH0 and PH1, respectively, when the HSE oscillator is off.
bogdanm 0:9b334a45a8ff 92 The HSE has priority over the GPIO function.
bogdanm 0:9b334a45a8ff 93
bogdanm 0:9b334a45a8ff 94 @endverbatim
bogdanm 0:9b334a45a8ff 95 ******************************************************************************
bogdanm 0:9b334a45a8ff 96 * @attention
bogdanm 0:9b334a45a8ff 97 *
bogdanm 0:9b334a45a8ff 98 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 99 *
bogdanm 0:9b334a45a8ff 100 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 101 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 102 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 103 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 104 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 105 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 106 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 107 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 108 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 109 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 110 *
bogdanm 0:9b334a45a8ff 111 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 112 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 113 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 114 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 115 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 116 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 117 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 118 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 119 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 120 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 121 *
bogdanm 0:9b334a45a8ff 122 ******************************************************************************
bogdanm 0:9b334a45a8ff 123 */
bogdanm 0:9b334a45a8ff 124
bogdanm 0:9b334a45a8ff 125 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 126 #include "stm32f4xx_hal.h"
bogdanm 0:9b334a45a8ff 127
bogdanm 0:9b334a45a8ff 128 /** @addtogroup STM32F4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 129 * @{
bogdanm 0:9b334a45a8ff 130 */
bogdanm 0:9b334a45a8ff 131
bogdanm 0:9b334a45a8ff 132 /** @defgroup GPIO GPIO
bogdanm 0:9b334a45a8ff 133 * @brief GPIO HAL module driver
bogdanm 0:9b334a45a8ff 134 * @{
bogdanm 0:9b334a45a8ff 135 */
bogdanm 0:9b334a45a8ff 136
bogdanm 0:9b334a45a8ff 137 #ifdef HAL_GPIO_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 138
bogdanm 0:9b334a45a8ff 139 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 140 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 141 /** @addtogroup GPIO_Private_Constants GPIO Private Constants
bogdanm 0:9b334a45a8ff 142 * @{
bogdanm 0:9b334a45a8ff 143 */
bogdanm 0:9b334a45a8ff 144 #define GPIO_MODE ((uint32_t)0x00000003)
bogdanm 0:9b334a45a8ff 145 #define EXTI_MODE ((uint32_t)0x10000000)
bogdanm 0:9b334a45a8ff 146 #define GPIO_MODE_IT ((uint32_t)0x00010000)
bogdanm 0:9b334a45a8ff 147 #define GPIO_MODE_EVT ((uint32_t)0x00020000)
bogdanm 0:9b334a45a8ff 148 #define RISING_EDGE ((uint32_t)0x00100000)
bogdanm 0:9b334a45a8ff 149 #define FALLING_EDGE ((uint32_t)0x00200000)
bogdanm 0:9b334a45a8ff 150 #define GPIO_OUTPUT_TYPE ((uint32_t)0x00000010)
bogdanm 0:9b334a45a8ff 151
bogdanm 0:9b334a45a8ff 152 #define GPIO_NUMBER ((uint32_t)16)
bogdanm 0:9b334a45a8ff 153 /**
bogdanm 0:9b334a45a8ff 154 * @}
bogdanm 0:9b334a45a8ff 155 */
bogdanm 0:9b334a45a8ff 156 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 157 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 158 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 159 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 160 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 161 /** @defgroup GPIO_Exported_Functions GPIO Exported Functions
bogdanm 0:9b334a45a8ff 162 * @{
bogdanm 0:9b334a45a8ff 163 */
bogdanm 0:9b334a45a8ff 164
bogdanm 0:9b334a45a8ff 165 /** @defgroup GPIO_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 166 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 167 *
bogdanm 0:9b334a45a8ff 168 @verbatim
bogdanm 0:9b334a45a8ff 169 ===============================================================================
bogdanm 0:9b334a45a8ff 170 ##### Initialization and de-initialization functions #####
bogdanm 0:9b334a45a8ff 171 ===============================================================================
bogdanm 0:9b334a45a8ff 172 [..]
bogdanm 0:9b334a45a8ff 173 This section provides functions allowing to initialize and de-initialize the GPIOs
bogdanm 0:9b334a45a8ff 174 to be ready for use.
bogdanm 0:9b334a45a8ff 175
bogdanm 0:9b334a45a8ff 176 @endverbatim
bogdanm 0:9b334a45a8ff 177 * @{
bogdanm 0:9b334a45a8ff 178 */
bogdanm 0:9b334a45a8ff 179
bogdanm 0:9b334a45a8ff 180
bogdanm 0:9b334a45a8ff 181 /**
bogdanm 0:9b334a45a8ff 182 * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init.
bogdanm 0:9b334a45a8ff 183 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
bogdanm 0:9b334a45a8ff 184 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
bogdanm 0:9b334a45a8ff 185 * @param GPIO_Init: pointer to a GPIO_InitTypeDef structure that contains
bogdanm 0:9b334a45a8ff 186 * the configuration information for the specified GPIO peripheral.
bogdanm 0:9b334a45a8ff 187 * @retval None
bogdanm 0:9b334a45a8ff 188 */
bogdanm 0:9b334a45a8ff 189 void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init)
bogdanm 0:9b334a45a8ff 190 {
bogdanm 0:9b334a45a8ff 191 uint32_t position;
bogdanm 0:9b334a45a8ff 192 uint32_t ioposition = 0x00;
bogdanm 0:9b334a45a8ff 193 uint32_t iocurrent = 0x00;
bogdanm 0:9b334a45a8ff 194 uint32_t temp = 0x00;
bogdanm 0:9b334a45a8ff 195
bogdanm 0:9b334a45a8ff 196 /* Check the parameters */
bogdanm 0:9b334a45a8ff 197 assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
bogdanm 0:9b334a45a8ff 198 assert_param(IS_GPIO_PIN(GPIO_Init->Pin));
bogdanm 0:9b334a45a8ff 199 assert_param(IS_GPIO_MODE(GPIO_Init->Mode));
bogdanm 0:9b334a45a8ff 200 assert_param(IS_GPIO_PULL(GPIO_Init->Pull));
bogdanm 0:9b334a45a8ff 201
bogdanm 0:9b334a45a8ff 202 /* Configure the port pins */
bogdanm 0:9b334a45a8ff 203 for(position = 0; position < GPIO_NUMBER; position++)
bogdanm 0:9b334a45a8ff 204 {
bogdanm 0:9b334a45a8ff 205 /* Get the IO position */
bogdanm 0:9b334a45a8ff 206 ioposition = ((uint32_t)0x01) << position;
bogdanm 0:9b334a45a8ff 207 /* Get the current IO position */
bogdanm 0:9b334a45a8ff 208 iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition;
bogdanm 0:9b334a45a8ff 209
bogdanm 0:9b334a45a8ff 210 if(iocurrent == ioposition)
bogdanm 0:9b334a45a8ff 211 {
bogdanm 0:9b334a45a8ff 212 /*--------------------- GPIO Mode Configuration ------------------------*/
bogdanm 0:9b334a45a8ff 213 /* In case of Alternate function mode selection */
bogdanm 0:9b334a45a8ff 214 if((GPIO_Init->Mode == GPIO_MODE_AF_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_OD))
bogdanm 0:9b334a45a8ff 215 {
bogdanm 0:9b334a45a8ff 216 /* Check the Alternate function parameter */
bogdanm 0:9b334a45a8ff 217 assert_param(IS_GPIO_AF(GPIO_Init->Alternate));
bogdanm 0:9b334a45a8ff 218 /* Configure Alternate function mapped with the current IO */
bogdanm 0:9b334a45a8ff 219 temp = GPIOx->AFR[position >> 3];
bogdanm 0:9b334a45a8ff 220 temp &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
bogdanm 0:9b334a45a8ff 221 temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & (uint32_t)0x07) * 4));
bogdanm 0:9b334a45a8ff 222 GPIOx->AFR[position >> 3] = temp;
bogdanm 0:9b334a45a8ff 223 }
bogdanm 0:9b334a45a8ff 224
bogdanm 0:9b334a45a8ff 225 /* Configure IO Direction mode (Input, Output, Alternate or Analog) */
bogdanm 0:9b334a45a8ff 226 temp = GPIOx->MODER;
bogdanm 0:9b334a45a8ff 227 temp &= ~(GPIO_MODER_MODER0 << (position * 2));
bogdanm 0:9b334a45a8ff 228 temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2));
bogdanm 0:9b334a45a8ff 229 GPIOx->MODER = temp;
bogdanm 0:9b334a45a8ff 230
bogdanm 0:9b334a45a8ff 231 /* In case of Output or Alternate function mode selection */
bogdanm 0:9b334a45a8ff 232 if((GPIO_Init->Mode == GPIO_MODE_OUTPUT_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_PP) ||
bogdanm 0:9b334a45a8ff 233 (GPIO_Init->Mode == GPIO_MODE_OUTPUT_OD) || (GPIO_Init->Mode == GPIO_MODE_AF_OD))
bogdanm 0:9b334a45a8ff 234 {
bogdanm 0:9b334a45a8ff 235 /* Check the Speed parameter */
bogdanm 0:9b334a45a8ff 236 assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
bogdanm 0:9b334a45a8ff 237 /* Configure the IO Speed */
bogdanm 0:9b334a45a8ff 238 temp = GPIOx->OSPEEDR;
bogdanm 0:9b334a45a8ff 239 temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
bogdanm 0:9b334a45a8ff 240 temp |= (GPIO_Init->Speed << (position * 2));
bogdanm 0:9b334a45a8ff 241 GPIOx->OSPEEDR = temp;
bogdanm 0:9b334a45a8ff 242
bogdanm 0:9b334a45a8ff 243 /* Configure the IO Output Type */
bogdanm 0:9b334a45a8ff 244 temp = GPIOx->OTYPER;
bogdanm 0:9b334a45a8ff 245 temp &= ~(GPIO_OTYPER_OT_0 << position) ;
bogdanm 0:9b334a45a8ff 246 temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4) << position);
bogdanm 0:9b334a45a8ff 247 GPIOx->OTYPER = temp;
bogdanm 0:9b334a45a8ff 248 }
bogdanm 0:9b334a45a8ff 249
bogdanm 0:9b334a45a8ff 250 /* Activate the Pull-up or Pull down resistor for the current IO */
bogdanm 0:9b334a45a8ff 251 temp = GPIOx->PUPDR;
bogdanm 0:9b334a45a8ff 252 temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
bogdanm 0:9b334a45a8ff 253 temp |= ((GPIO_Init->Pull) << (position * 2));
bogdanm 0:9b334a45a8ff 254 GPIOx->PUPDR = temp;
bogdanm 0:9b334a45a8ff 255
bogdanm 0:9b334a45a8ff 256 /*--------------------- EXTI Mode Configuration ------------------------*/
bogdanm 0:9b334a45a8ff 257 /* Configure the External Interrupt or event for the current IO */
bogdanm 0:9b334a45a8ff 258 if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE)
bogdanm 0:9b334a45a8ff 259 {
bogdanm 0:9b334a45a8ff 260 /* Enable SYSCFG Clock */
bogdanm 0:9b334a45a8ff 261 __HAL_RCC_SYSCFG_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 262
bogdanm 0:9b334a45a8ff 263 temp = SYSCFG->EXTICR[position >> 2];
bogdanm 0:9b334a45a8ff 264 temp &= ~(((uint32_t)0x0F) << (4 * (position & 0x03)));
bogdanm 0:9b334a45a8ff 265 temp |= ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03)));
bogdanm 0:9b334a45a8ff 266 SYSCFG->EXTICR[position >> 2] = temp;
bogdanm 0:9b334a45a8ff 267
bogdanm 0:9b334a45a8ff 268 /* Clear EXTI line configuration */
bogdanm 0:9b334a45a8ff 269 temp = EXTI->IMR;
bogdanm 0:9b334a45a8ff 270 temp &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 271 if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
bogdanm 0:9b334a45a8ff 272 {
bogdanm 0:9b334a45a8ff 273 temp |= iocurrent;
bogdanm 0:9b334a45a8ff 274 }
bogdanm 0:9b334a45a8ff 275 EXTI->IMR = temp;
bogdanm 0:9b334a45a8ff 276
bogdanm 0:9b334a45a8ff 277 temp = EXTI->EMR;
bogdanm 0:9b334a45a8ff 278 temp &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 279 if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT)
bogdanm 0:9b334a45a8ff 280 {
bogdanm 0:9b334a45a8ff 281 temp |= iocurrent;
bogdanm 0:9b334a45a8ff 282 }
bogdanm 0:9b334a45a8ff 283 EXTI->EMR = temp;
bogdanm 0:9b334a45a8ff 284
bogdanm 0:9b334a45a8ff 285 /* Clear Rising Falling edge configuration */
bogdanm 0:9b334a45a8ff 286 temp = EXTI->RTSR;
bogdanm 0:9b334a45a8ff 287 temp &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 288 if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE)
bogdanm 0:9b334a45a8ff 289 {
bogdanm 0:9b334a45a8ff 290 temp |= iocurrent;
bogdanm 0:9b334a45a8ff 291 }
bogdanm 0:9b334a45a8ff 292 EXTI->RTSR = temp;
bogdanm 0:9b334a45a8ff 293
bogdanm 0:9b334a45a8ff 294 temp = EXTI->FTSR;
bogdanm 0:9b334a45a8ff 295 temp &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 296 if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE)
bogdanm 0:9b334a45a8ff 297 {
bogdanm 0:9b334a45a8ff 298 temp |= iocurrent;
bogdanm 0:9b334a45a8ff 299 }
bogdanm 0:9b334a45a8ff 300 EXTI->FTSR = temp;
bogdanm 0:9b334a45a8ff 301 }
bogdanm 0:9b334a45a8ff 302 }
bogdanm 0:9b334a45a8ff 303 }
bogdanm 0:9b334a45a8ff 304 }
bogdanm 0:9b334a45a8ff 305
bogdanm 0:9b334a45a8ff 306 /**
bogdanm 0:9b334a45a8ff 307 * @brief De-initializes the GPIOx peripheral registers to their default reset values.
bogdanm 0:9b334a45a8ff 308 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
bogdanm 0:9b334a45a8ff 309 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
bogdanm 0:9b334a45a8ff 310 * @param GPIO_Pin: specifies the port bit to be written.
bogdanm 0:9b334a45a8ff 311 * This parameter can be one of GPIO_PIN_x where x can be (0..15).
bogdanm 0:9b334a45a8ff 312 * @retval None
bogdanm 0:9b334a45a8ff 313 */
bogdanm 0:9b334a45a8ff 314 void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 315 {
bogdanm 0:9b334a45a8ff 316 uint32_t position;
bogdanm 0:9b334a45a8ff 317 uint32_t ioposition = 0x00;
bogdanm 0:9b334a45a8ff 318 uint32_t iocurrent = 0x00;
bogdanm 0:9b334a45a8ff 319 uint32_t tmp = 0x00;
bogdanm 0:9b334a45a8ff 320
bogdanm 0:9b334a45a8ff 321 /* Check the parameters */
bogdanm 0:9b334a45a8ff 322 assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 /* Configure the port pins */
bogdanm 0:9b334a45a8ff 325 for(position = 0; position < GPIO_NUMBER; position++)
bogdanm 0:9b334a45a8ff 326 {
bogdanm 0:9b334a45a8ff 327 /* Get the IO position */
bogdanm 0:9b334a45a8ff 328 ioposition = ((uint32_t)0x01) << position;
bogdanm 0:9b334a45a8ff 329 /* Get the current IO position */
bogdanm 0:9b334a45a8ff 330 iocurrent = (GPIO_Pin) & ioposition;
bogdanm 0:9b334a45a8ff 331
bogdanm 0:9b334a45a8ff 332 if(iocurrent == ioposition)
bogdanm 0:9b334a45a8ff 333 {
bogdanm 0:9b334a45a8ff 334 /*------------------------- GPIO Mode Configuration --------------------*/
bogdanm 0:9b334a45a8ff 335 /* Configure IO Direction in Input Floating Mode */
bogdanm 0:9b334a45a8ff 336 GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2));
bogdanm 0:9b334a45a8ff 337
bogdanm 0:9b334a45a8ff 338 /* Configure the default Alternate Function in current IO */
bogdanm 0:9b334a45a8ff 339 GPIOx->AFR[position >> 3] &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
bogdanm 0:9b334a45a8ff 340
bogdanm 0:9b334a45a8ff 341 /* Configure the default value for IO Speed */
bogdanm 0:9b334a45a8ff 342 GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
bogdanm 0:9b334a45a8ff 343
bogdanm 0:9b334a45a8ff 344 /* Configure the default value IO Output Type */
bogdanm 0:9b334a45a8ff 345 GPIOx->OTYPER &= ~(GPIO_OTYPER_OT_0 << position) ;
bogdanm 0:9b334a45a8ff 346
bogdanm 0:9b334a45a8ff 347 /* Deactivate the Pull-up and Pull-down resistor for the current IO */
bogdanm 0:9b334a45a8ff 348 GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
bogdanm 0:9b334a45a8ff 349
bogdanm 0:9b334a45a8ff 350 /*------------------------- EXTI Mode Configuration --------------------*/
bogdanm 0:9b334a45a8ff 351 tmp = SYSCFG->EXTICR[position >> 2];
bogdanm 0:9b334a45a8ff 352 tmp &= (((uint32_t)0x0F) << (4 * (position & 0x03)));
bogdanm 0:9b334a45a8ff 353 if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03))))
bogdanm 0:9b334a45a8ff 354 {
bogdanm 0:9b334a45a8ff 355 /* Configure the External Interrupt or event for the current IO */
bogdanm 0:9b334a45a8ff 356 tmp = ((uint32_t)0x0F) << (4 * (position & 0x03));
bogdanm 0:9b334a45a8ff 357 SYSCFG->EXTICR[position >> 2] &= ~tmp;
bogdanm 0:9b334a45a8ff 358
bogdanm 0:9b334a45a8ff 359 /* Clear EXTI line configuration */
bogdanm 0:9b334a45a8ff 360 EXTI->IMR &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 361 EXTI->EMR &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 362
bogdanm 0:9b334a45a8ff 363 /* Clear Rising Falling edge configuration */
bogdanm 0:9b334a45a8ff 364 EXTI->RTSR &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 365 EXTI->FTSR &= ~((uint32_t)iocurrent);
bogdanm 0:9b334a45a8ff 366 }
bogdanm 0:9b334a45a8ff 367 }
bogdanm 0:9b334a45a8ff 368 }
bogdanm 0:9b334a45a8ff 369 }
bogdanm 0:9b334a45a8ff 370
bogdanm 0:9b334a45a8ff 371 /**
bogdanm 0:9b334a45a8ff 372 * @}
bogdanm 0:9b334a45a8ff 373 */
bogdanm 0:9b334a45a8ff 374
bogdanm 0:9b334a45a8ff 375 /** @defgroup GPIO_Exported_Functions_Group2 IO operation functions
bogdanm 0:9b334a45a8ff 376 * @brief GPIO Read and Write
bogdanm 0:9b334a45a8ff 377 *
bogdanm 0:9b334a45a8ff 378 @verbatim
bogdanm 0:9b334a45a8ff 379 ===============================================================================
bogdanm 0:9b334a45a8ff 380 ##### IO operation functions #####
bogdanm 0:9b334a45a8ff 381 ===============================================================================
bogdanm 0:9b334a45a8ff 382
bogdanm 0:9b334a45a8ff 383 @endverbatim
bogdanm 0:9b334a45a8ff 384 * @{
bogdanm 0:9b334a45a8ff 385 */
bogdanm 0:9b334a45a8ff 386
bogdanm 0:9b334a45a8ff 387 /**
bogdanm 0:9b334a45a8ff 388 * @brief Reads the specified input port pin.
bogdanm 0:9b334a45a8ff 389 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
bogdanm 0:9b334a45a8ff 390 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
bogdanm 0:9b334a45a8ff 391 * @param GPIO_Pin: specifies the port bit to read.
bogdanm 0:9b334a45a8ff 392 * This parameter can be GPIO_PIN_x where x can be (0..15).
bogdanm 0:9b334a45a8ff 393 * @retval The input port pin value.
bogdanm 0:9b334a45a8ff 394 */
bogdanm 0:9b334a45a8ff 395 GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 396 {
bogdanm 0:9b334a45a8ff 397 GPIO_PinState bitstatus;
bogdanm 0:9b334a45a8ff 398
bogdanm 0:9b334a45a8ff 399 /* Check the parameters */
bogdanm 0:9b334a45a8ff 400 assert_param(IS_GPIO_PIN(GPIO_Pin));
bogdanm 0:9b334a45a8ff 401
bogdanm 0:9b334a45a8ff 402 if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET)
bogdanm 0:9b334a45a8ff 403 {
bogdanm 0:9b334a45a8ff 404 bitstatus = GPIO_PIN_SET;
bogdanm 0:9b334a45a8ff 405 }
bogdanm 0:9b334a45a8ff 406 else
bogdanm 0:9b334a45a8ff 407 {
bogdanm 0:9b334a45a8ff 408 bitstatus = GPIO_PIN_RESET;
bogdanm 0:9b334a45a8ff 409 }
bogdanm 0:9b334a45a8ff 410 return bitstatus;
bogdanm 0:9b334a45a8ff 411 }
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 /**
bogdanm 0:9b334a45a8ff 414 * @brief Sets or clears the selected data port bit.
bogdanm 0:9b334a45a8ff 415 *
bogdanm 0:9b334a45a8ff 416 * @note This function uses GPIOx_BSRR register to allow atomic read/modify
bogdanm 0:9b334a45a8ff 417 * accesses. In this way, there is no risk of an IRQ occurring between
bogdanm 0:9b334a45a8ff 418 * the read and the modify access.
bogdanm 0:9b334a45a8ff 419 *
bogdanm 0:9b334a45a8ff 420 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
bogdanm 0:9b334a45a8ff 421 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
bogdanm 0:9b334a45a8ff 422 * @param GPIO_Pin: specifies the port bit to be written.
bogdanm 0:9b334a45a8ff 423 * This parameter can be one of GPIO_PIN_x where x can be (0..15).
bogdanm 0:9b334a45a8ff 424 * @param PinState: specifies the value to be written to the selected bit.
bogdanm 0:9b334a45a8ff 425 * This parameter can be one of the GPIO_PinState enum values:
bogdanm 0:9b334a45a8ff 426 * @arg GPIO_PIN_RESET: to clear the port pin
bogdanm 0:9b334a45a8ff 427 * @arg GPIO_PIN_SET: to set the port pin
bogdanm 0:9b334a45a8ff 428 * @retval None
bogdanm 0:9b334a45a8ff 429 */
bogdanm 0:9b334a45a8ff 430 void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
bogdanm 0:9b334a45a8ff 431 {
bogdanm 0:9b334a45a8ff 432 /* Check the parameters */
bogdanm 0:9b334a45a8ff 433 assert_param(IS_GPIO_PIN(GPIO_Pin));
bogdanm 0:9b334a45a8ff 434 assert_param(IS_GPIO_PIN_ACTION(PinState));
bogdanm 0:9b334a45a8ff 435
bogdanm 0:9b334a45a8ff 436 if(PinState != GPIO_PIN_RESET)
bogdanm 0:9b334a45a8ff 437 {
bogdanm 0:9b334a45a8ff 438 GPIOx->BSRR = GPIO_Pin;
bogdanm 0:9b334a45a8ff 439 }
bogdanm 0:9b334a45a8ff 440 else
bogdanm 0:9b334a45a8ff 441 {
bogdanm 0:9b334a45a8ff 442 GPIOx->BSRR = (uint32_t)GPIO_Pin << 16;
bogdanm 0:9b334a45a8ff 443 }
bogdanm 0:9b334a45a8ff 444 }
bogdanm 0:9b334a45a8ff 445
bogdanm 0:9b334a45a8ff 446 /**
bogdanm 0:9b334a45a8ff 447 * @brief Toggles the specified GPIO pins.
bogdanm 0:9b334a45a8ff 448 * @param GPIOx: Where x can be (A..K) to select the GPIO peripheral for STM32F429X device or
bogdanm 0:9b334a45a8ff 449 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices.
bogdanm 0:9b334a45a8ff 450 * @param GPIO_Pin: Specifies the pins to be toggled.
bogdanm 0:9b334a45a8ff 451 * @retval None
bogdanm 0:9b334a45a8ff 452 */
bogdanm 0:9b334a45a8ff 453 void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 454 {
bogdanm 0:9b334a45a8ff 455 /* Check the parameters */
bogdanm 0:9b334a45a8ff 456 assert_param(IS_GPIO_PIN(GPIO_Pin));
bogdanm 0:9b334a45a8ff 457
bogdanm 0:9b334a45a8ff 458 GPIOx->ODR ^= GPIO_Pin;
bogdanm 0:9b334a45a8ff 459 }
bogdanm 0:9b334a45a8ff 460
bogdanm 0:9b334a45a8ff 461 /**
bogdanm 0:9b334a45a8ff 462 * @brief Locks GPIO Pins configuration registers.
bogdanm 0:9b334a45a8ff 463 * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
bogdanm 0:9b334a45a8ff 464 * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
bogdanm 0:9b334a45a8ff 465 * @note The configuration of the locked GPIO pins can no longer be modified
bogdanm 0:9b334a45a8ff 466 * until the next reset.
bogdanm 0:9b334a45a8ff 467 * @param GPIOx: where x can be (A..F) to select the GPIO peripheral for STM32F4 family
bogdanm 0:9b334a45a8ff 468 * @param GPIO_Pin: specifies the port bit to be locked.
bogdanm 0:9b334a45a8ff 469 * This parameter can be any combination of GPIO_PIN_x where x can be (0..15).
bogdanm 0:9b334a45a8ff 470 * @retval None
bogdanm 0:9b334a45a8ff 471 */
bogdanm 0:9b334a45a8ff 472 HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 473 {
bogdanm 0:9b334a45a8ff 474 __IO uint32_t tmp = GPIO_LCKR_LCKK;
bogdanm 0:9b334a45a8ff 475
bogdanm 0:9b334a45a8ff 476 /* Check the parameters */
bogdanm 0:9b334a45a8ff 477 assert_param(IS_GPIO_PIN(GPIO_Pin));
bogdanm 0:9b334a45a8ff 478
bogdanm 0:9b334a45a8ff 479 /* Apply lock key write sequence */
bogdanm 0:9b334a45a8ff 480 tmp |= GPIO_Pin;
bogdanm 0:9b334a45a8ff 481 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
bogdanm 0:9b334a45a8ff 482 GPIOx->LCKR = tmp;
bogdanm 0:9b334a45a8ff 483 /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */
bogdanm 0:9b334a45a8ff 484 GPIOx->LCKR = GPIO_Pin;
bogdanm 0:9b334a45a8ff 485 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
bogdanm 0:9b334a45a8ff 486 GPIOx->LCKR = tmp;
bogdanm 0:9b334a45a8ff 487 /* Read LCKK bit*/
bogdanm 0:9b334a45a8ff 488 tmp = GPIOx->LCKR;
bogdanm 0:9b334a45a8ff 489
bogdanm 0:9b334a45a8ff 490 if((GPIOx->LCKR & GPIO_LCKR_LCKK) != RESET)
bogdanm 0:9b334a45a8ff 491 {
bogdanm 0:9b334a45a8ff 492 return HAL_OK;
bogdanm 0:9b334a45a8ff 493 }
bogdanm 0:9b334a45a8ff 494 else
bogdanm 0:9b334a45a8ff 495 {
bogdanm 0:9b334a45a8ff 496 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 497 }
bogdanm 0:9b334a45a8ff 498 }
bogdanm 0:9b334a45a8ff 499
bogdanm 0:9b334a45a8ff 500 /**
bogdanm 0:9b334a45a8ff 501 * @brief This function handles EXTI interrupt request.
bogdanm 0:9b334a45a8ff 502 * @param GPIO_Pin: Specifies the pins connected EXTI line
bogdanm 0:9b334a45a8ff 503 * @retval None
bogdanm 0:9b334a45a8ff 504 */
bogdanm 0:9b334a45a8ff 505 void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 506 {
bogdanm 0:9b334a45a8ff 507 /* EXTI line interrupt detected */
bogdanm 0:9b334a45a8ff 508 if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET)
bogdanm 0:9b334a45a8ff 509 {
bogdanm 0:9b334a45a8ff 510 __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
bogdanm 0:9b334a45a8ff 511 HAL_GPIO_EXTI_Callback(GPIO_Pin);
bogdanm 0:9b334a45a8ff 512 }
bogdanm 0:9b334a45a8ff 513 }
bogdanm 0:9b334a45a8ff 514
bogdanm 0:9b334a45a8ff 515 /**
bogdanm 0:9b334a45a8ff 516 * @brief EXTI line detection callbacks.
bogdanm 0:9b334a45a8ff 517 * @param GPIO_Pin: Specifies the pins connected EXTI line
bogdanm 0:9b334a45a8ff 518 * @retval None
bogdanm 0:9b334a45a8ff 519 */
bogdanm 0:9b334a45a8ff 520 __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
bogdanm 0:9b334a45a8ff 521 {
bogdanm 0:9b334a45a8ff 522 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 523 the HAL_GPIO_EXTI_Callback could be implemented in the user file
bogdanm 0:9b334a45a8ff 524 */
bogdanm 0:9b334a45a8ff 525 }
bogdanm 0:9b334a45a8ff 526
bogdanm 0:9b334a45a8ff 527 /**
bogdanm 0:9b334a45a8ff 528 * @}
bogdanm 0:9b334a45a8ff 529 */
bogdanm 0:9b334a45a8ff 530
bogdanm 0:9b334a45a8ff 531
bogdanm 0:9b334a45a8ff 532 /**
bogdanm 0:9b334a45a8ff 533 * @}
bogdanm 0:9b334a45a8ff 534 */
bogdanm 0:9b334a45a8ff 535
bogdanm 0:9b334a45a8ff 536 #endif /* HAL_GPIO_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 537 /**
bogdanm 0:9b334a45a8ff 538 * @}
bogdanm 0:9b334a45a8ff 539 */
bogdanm 0:9b334a45a8ff 540
bogdanm 0:9b334a45a8ff 541 /**
bogdanm 0:9b334a45a8ff 542 * @}
bogdanm 0:9b334a45a8ff 543 */
bogdanm 0:9b334a45a8ff 544
bogdanm 0:9b334a45a8ff 545 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/