Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_exti.c@106:ced8cbb51063, 2014-02-26 (annotated)

Committer:
mbed_official
Date:
Wed Feb 26 09:45:12 2014 +0000
Revision:
106:ced8cbb51063
Parent:
80:66393a7b209d 
Synchronized with git revision 4222735eff5868389433f0e9271976b39c8115cd



Full URL: https://github.com/mbedmicro/mbed/commit/4222735eff5868389433f0e9271976b39c8115cd/



[NUCLEO_xxx] Update STM32CubeF4 driver V1.0.0 + update license

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /**
mbed_official 76:aeb1df146756 2 ******************************************************************************
mbed_official 76:aeb1df146756 3 * @file stm32l1xx_exti.c
mbed_official 76:aeb1df146756 4 * @author MCD Application Team
mbed_official 80:66393a7b209d 5 * @version V1.3.0
mbed_official 80:66393a7b209d 6 * @date 31-January-2014
mbed_official 76:aeb1df146756 7 * @brief This file provides firmware functions to manage the following
mbed_official 76:aeb1df146756 8 * functionalities of the EXTI peripheral:
mbed_official 76:aeb1df146756 9 * + Initialization and Configuration
mbed_official 76:aeb1df146756 10 * + Interrupts and flags management
mbed_official 76:aeb1df146756 11 *
mbed_official 76:aeb1df146756 12 * @verbatim
mbed_official 76:aeb1df146756 13 ==============================================================================
mbed_official 76:aeb1df146756 14 ##### EXTI features #####
mbed_official 76:aeb1df146756 15 ==============================================================================
mbed_official 76:aeb1df146756 16 [..] External interrupt/event lines are mapped as following:
mbed_official 76:aeb1df146756 17 (#) All available GPIO pins are connected to the 16 external
mbed_official 76:aeb1df146756 18 interrupt/event lines from EXTI0 to EXTI15.
mbed_official 76:aeb1df146756 19 (#) EXTI line 16 is connected to the PVD output.
mbed_official 76:aeb1df146756 20 (#) EXTI line 17 is connected to the RTC Alarm event.
mbed_official 76:aeb1df146756 21 (#) EXTI line 18 is connected to the USB Device FS wakeup event.
mbed_official 76:aeb1df146756 22 (#) EXTI line 19 is connected to the RTC Tamper and TimeStamp events.
mbed_official 76:aeb1df146756 23 (#) EXTI line 20 is connected to the RTC Wakeup event.
mbed_official 76:aeb1df146756 24 (#) EXTI line 21 is connected to the Comparator 1 wakeup event.
mbed_official 76:aeb1df146756 25 (#) EXTI line 22 is connected to the Comparator 2 wakeup event.
mbed_official 76:aeb1df146756 26 (#) EXTI line 23 is connected to the Comparator channel acquisition wakeup event.
mbed_official 76:aeb1df146756 27
mbed_official 76:aeb1df146756 28
mbed_official 76:aeb1df146756 29 ##### How to use this driver #####
mbed_official 76:aeb1df146756 30 ==============================================================================
mbed_official 76:aeb1df146756 31 [..] In order to use an I/O pin as an external interrupt source, follow
mbed_official 76:aeb1df146756 32 steps below:
mbed_official 76:aeb1df146756 33 (#) Configure the I/O in input mode using GPIO_Init()
mbed_official 76:aeb1df146756 34 (#) Select the input source pin for the EXTI line using
mbed_official 76:aeb1df146756 35 SYSCFG_EXTILineConfig()
mbed_official 76:aeb1df146756 36 (#) Select the mode(interrupt, event) and configure the trigger
mbed_official 76:aeb1df146756 37 selection (Rising, falling or both) using EXTI_Init()
mbed_official 76:aeb1df146756 38 (#) Configure NVIC IRQ channel mapped to the EXTI line using NVIC_Init()
mbed_official 76:aeb1df146756 39 [..]
mbed_official 76:aeb1df146756 40 (@) SYSCFG APB clock must be enabled to get write access to SYSCFG_EXTICRx
mbed_official 76:aeb1df146756 41 registers using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
mbed_official 76:aeb1df146756 42
mbed_official 76:aeb1df146756 43 * @endverbatim
mbed_official 76:aeb1df146756 44 *
mbed_official 76:aeb1df146756 45 ******************************************************************************
mbed_official 76:aeb1df146756 46 * @attention
mbed_official 76:aeb1df146756 47 *
mbed_official 106:ced8cbb51063 48 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 49 *
mbed_official 106:ced8cbb51063 50 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 106:ced8cbb51063 51 * are permitted provided that the following conditions are met:
mbed_official 106:ced8cbb51063 52 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 106:ced8cbb51063 53 * this list of conditions and the following disclaimer.
mbed_official 106:ced8cbb51063 54 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 106:ced8cbb51063 55 * this list of conditions and the following disclaimer in the documentation
mbed_official 106:ced8cbb51063 56 * and/or other materials provided with the distribution.
mbed_official 106:ced8cbb51063 57 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 106:ced8cbb51063 58 * may be used to endorse or promote products derived from this software
mbed_official 106:ced8cbb51063 59 * without specific prior written permission.
mbed_official 76:aeb1df146756 60 *
mbed_official 106:ced8cbb51063 61 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 106:ced8cbb51063 62 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 106:ced8cbb51063 63 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 106:ced8cbb51063 64 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 106:ced8cbb51063 65 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 106:ced8cbb51063 66 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 106:ced8cbb51063 67 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 106:ced8cbb51063 68 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 106:ced8cbb51063 69 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 106:ced8cbb51063 70 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 71 *
mbed_official 76:aeb1df146756 72 ******************************************************************************
mbed_official 76:aeb1df146756 73 */
mbed_official 76:aeb1df146756 74
mbed_official 76:aeb1df146756 75 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 76 #include "stm32l1xx_exti.h"
mbed_official 76:aeb1df146756 77
mbed_official 76:aeb1df146756 78 /** @addtogroup STM32L1xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 79 * @{
mbed_official 76:aeb1df146756 80 */
mbed_official 76:aeb1df146756 81
mbed_official 76:aeb1df146756 82 /** @defgroup EXTI
mbed_official 76:aeb1df146756 83 * @brief EXTI driver modules
mbed_official 76:aeb1df146756 84 * @{
mbed_official 76:aeb1df146756 85 */
mbed_official 76:aeb1df146756 86
mbed_official 76:aeb1df146756 87 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 88 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 89 #define EXTI_LINENONE ((uint32_t)0x00000) /* No interrupt selected */
mbed_official 76:aeb1df146756 90
mbed_official 76:aeb1df146756 91 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 92 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 93 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 94 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 95
mbed_official 76:aeb1df146756 96 /** @defgroup EXTI_Private_Functions
mbed_official 76:aeb1df146756 97 * @{
mbed_official 76:aeb1df146756 98 */
mbed_official 76:aeb1df146756 99
mbed_official 76:aeb1df146756 100 /** @defgroup EXTI_Group1 Initialization and Configuration functions
mbed_official 76:aeb1df146756 101 * @brief Initialization and Configuration functions
mbed_official 76:aeb1df146756 102 *
mbed_official 76:aeb1df146756 103 @verbatim
mbed_official 76:aeb1df146756 104 ==============================================================================
mbed_official 76:aeb1df146756 105 ##### Initialization and Configuration functions #####
mbed_official 76:aeb1df146756 106 ==============================================================================
mbed_official 76:aeb1df146756 107
mbed_official 76:aeb1df146756 108 @endverbatim
mbed_official 76:aeb1df146756 109 * @{
mbed_official 76:aeb1df146756 110 */
mbed_official 76:aeb1df146756 111
mbed_official 76:aeb1df146756 112 /**
mbed_official 76:aeb1df146756 113 * @brief Deinitializes the EXTI peripheral registers to their default reset values.
mbed_official 76:aeb1df146756 114 * @param None
mbed_official 76:aeb1df146756 115 * @retval None
mbed_official 76:aeb1df146756 116 */
mbed_official 76:aeb1df146756 117 void EXTI_DeInit(void)
mbed_official 76:aeb1df146756 118 {
mbed_official 76:aeb1df146756 119 EXTI->IMR = 0x00000000;
mbed_official 76:aeb1df146756 120 EXTI->EMR = 0x00000000;
mbed_official 76:aeb1df146756 121 EXTI->RTSR = 0x00000000;
mbed_official 76:aeb1df146756 122 EXTI->FTSR = 0x00000000;
mbed_official 76:aeb1df146756 123 EXTI->PR = 0x00FFFFFF;
mbed_official 76:aeb1df146756 124 }
mbed_official 76:aeb1df146756 125
mbed_official 76:aeb1df146756 126 /**
mbed_official 76:aeb1df146756 127 * @brief Initializes the EXTI peripheral according to the specified
mbed_official 76:aeb1df146756 128 * parameters in the EXTI_InitStruct.
mbed_official 76:aeb1df146756 129 * EXTI_Line specifies the EXTI line (EXTI0....EXTI23).
mbed_official 76:aeb1df146756 130 * EXTI_Mode specifies which EXTI line is used as interrupt or an event.
mbed_official 76:aeb1df146756 131 * EXTI_Trigger selects the trigger. When the trigger occurs, interrupt
mbed_official 76:aeb1df146756 132 * pending bit will be set.
mbed_official 76:aeb1df146756 133 * EXTI_LineCmd controls (Enable/Disable) the EXTI line.
mbed_official 76:aeb1df146756 134 * @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure
mbed_official 76:aeb1df146756 135 * that contains the configuration information for the EXTI peripheral.
mbed_official 76:aeb1df146756 136 * @retval None
mbed_official 76:aeb1df146756 137 */
mbed_official 76:aeb1df146756 138 void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct)
mbed_official 76:aeb1df146756 139 {
mbed_official 76:aeb1df146756 140 uint32_t tmp = 0;
mbed_official 76:aeb1df146756 141
mbed_official 76:aeb1df146756 142 /* Check the parameters */
mbed_official 76:aeb1df146756 143 assert_param(IS_EXTI_MODE(EXTI_InitStruct->EXTI_Mode));
mbed_official 76:aeb1df146756 144 assert_param(IS_EXTI_TRIGGER(EXTI_InitStruct->EXTI_Trigger));
mbed_official 76:aeb1df146756 145 assert_param(IS_EXTI_LINE(EXTI_InitStruct->EXTI_Line));
mbed_official 76:aeb1df146756 146 assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->EXTI_LineCmd));
mbed_official 76:aeb1df146756 147
mbed_official 76:aeb1df146756 148 tmp = (uint32_t)EXTI_BASE;
mbed_official 76:aeb1df146756 149
mbed_official 76:aeb1df146756 150 if (EXTI_InitStruct->EXTI_LineCmd != DISABLE)
mbed_official 76:aeb1df146756 151 {
mbed_official 76:aeb1df146756 152 /* Clear EXTI line configuration */
mbed_official 76:aeb1df146756 153 EXTI->IMR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 154 EXTI->EMR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 155
mbed_official 76:aeb1df146756 156 tmp += EXTI_InitStruct->EXTI_Mode;
mbed_official 76:aeb1df146756 157
mbed_official 76:aeb1df146756 158 *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 159
mbed_official 76:aeb1df146756 160 /* Clear Rising Falling edge configuration */
mbed_official 76:aeb1df146756 161 EXTI->RTSR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 162 EXTI->FTSR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 163
mbed_official 76:aeb1df146756 164 /* Select the trigger for the selected external interrupts */
mbed_official 76:aeb1df146756 165 if (EXTI_InitStruct->EXTI_Trigger == EXTI_Trigger_Rising_Falling)
mbed_official 76:aeb1df146756 166 {
mbed_official 76:aeb1df146756 167 /* Rising Falling edge */
mbed_official 76:aeb1df146756 168 EXTI->RTSR |= EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 169 EXTI->FTSR |= EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 170 }
mbed_official 76:aeb1df146756 171 else
mbed_official 76:aeb1df146756 172 {
mbed_official 76:aeb1df146756 173 tmp = (uint32_t)EXTI_BASE;
mbed_official 76:aeb1df146756 174 tmp += EXTI_InitStruct->EXTI_Trigger;
mbed_official 76:aeb1df146756 175
mbed_official 76:aeb1df146756 176 *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 177 }
mbed_official 76:aeb1df146756 178 }
mbed_official 76:aeb1df146756 179 else
mbed_official 76:aeb1df146756 180 {
mbed_official 76:aeb1df146756 181 tmp += EXTI_InitStruct->EXTI_Mode;
mbed_official 76:aeb1df146756 182
mbed_official 76:aeb1df146756 183 /* Disable the selected external lines */
mbed_official 76:aeb1df146756 184 *(__IO uint32_t *) tmp &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 76:aeb1df146756 185 }
mbed_official 76:aeb1df146756 186 }
mbed_official 76:aeb1df146756 187
mbed_official 76:aeb1df146756 188 /**
mbed_official 76:aeb1df146756 189 * @brief Fills each EXTI_InitStruct member with its reset value.
mbed_official 76:aeb1df146756 190 * @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure which will
mbed_official 76:aeb1df146756 191 * be initialized.
mbed_official 76:aeb1df146756 192 * @retval None
mbed_official 76:aeb1df146756 193 */
mbed_official 76:aeb1df146756 194 void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct)
mbed_official 76:aeb1df146756 195 {
mbed_official 76:aeb1df146756 196 EXTI_InitStruct->EXTI_Line = EXTI_LINENONE;
mbed_official 76:aeb1df146756 197 EXTI_InitStruct->EXTI_Mode = EXTI_Mode_Interrupt;
mbed_official 76:aeb1df146756 198 EXTI_InitStruct->EXTI_Trigger = EXTI_Trigger_Falling;
mbed_official 76:aeb1df146756 199 EXTI_InitStruct->EXTI_LineCmd = DISABLE;
mbed_official 76:aeb1df146756 200 }
mbed_official 76:aeb1df146756 201
mbed_official 76:aeb1df146756 202 /**
mbed_official 76:aeb1df146756 203 * @brief Generates a Software interrupt on selected EXTI line.
mbed_official 76:aeb1df146756 204 * @param EXTI_Line: specifies the EXTI line on which the software interrupt
mbed_official 76:aeb1df146756 205 * will be generated.
mbed_official 76:aeb1df146756 206 * This parameter can be any combination of EXTI_Linex where x can be (0..23).
mbed_official 76:aeb1df146756 207 * @retval None
mbed_official 76:aeb1df146756 208 */
mbed_official 76:aeb1df146756 209 void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line)
mbed_official 76:aeb1df146756 210 {
mbed_official 76:aeb1df146756 211 /* Check the parameters */
mbed_official 76:aeb1df146756 212 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 76:aeb1df146756 213
mbed_official 76:aeb1df146756 214 EXTI->SWIER |= EXTI_Line;
mbed_official 76:aeb1df146756 215 }
mbed_official 76:aeb1df146756 216
mbed_official 76:aeb1df146756 217 /**
mbed_official 76:aeb1df146756 218 * @}
mbed_official 76:aeb1df146756 219 */
mbed_official 76:aeb1df146756 220
mbed_official 76:aeb1df146756 221 /** @defgroup EXTI_Group2 Interrupts and flags management functions
mbed_official 76:aeb1df146756 222 * @brief Interrupts and flags management functions
mbed_official 76:aeb1df146756 223 *
mbed_official 76:aeb1df146756 224 @verbatim
mbed_official 76:aeb1df146756 225 ==============================================================================
mbed_official 76:aeb1df146756 226 ##### Interrupts and flags management functions #####
mbed_official 76:aeb1df146756 227 ==============================================================================
mbed_official 76:aeb1df146756 228
mbed_official 76:aeb1df146756 229 @endverbatim
mbed_official 76:aeb1df146756 230 * @{
mbed_official 76:aeb1df146756 231 */
mbed_official 76:aeb1df146756 232
mbed_official 76:aeb1df146756 233 /**
mbed_official 76:aeb1df146756 234 * @brief Checks whether the specified EXTI line flag is set or not.
mbed_official 76:aeb1df146756 235 * @param EXTI_Line: specifies the EXTI line flag to check.
mbed_official 76:aeb1df146756 236 * This parameter can be:
mbed_official 76:aeb1df146756 237 * EXTI_Linex: External interrupt line x where x(0..23).
mbed_official 76:aeb1df146756 238 * @retval The new state of EXTI_Line (SET or RESET).
mbed_official 76:aeb1df146756 239 */
mbed_official 76:aeb1df146756 240 FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line)
mbed_official 76:aeb1df146756 241 {
mbed_official 76:aeb1df146756 242 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 243 /* Check the parameters */
mbed_official 76:aeb1df146756 244 assert_param(IS_GET_EXTI_LINE(EXTI_Line));
mbed_official 76:aeb1df146756 245
mbed_official 76:aeb1df146756 246 if ((EXTI->PR & EXTI_Line) != (uint32_t)RESET)
mbed_official 76:aeb1df146756 247 {
mbed_official 76:aeb1df146756 248 bitstatus = SET;
mbed_official 76:aeb1df146756 249 }
mbed_official 76:aeb1df146756 250 else
mbed_official 76:aeb1df146756 251 {
mbed_official 76:aeb1df146756 252 bitstatus = RESET;
mbed_official 76:aeb1df146756 253 }
mbed_official 76:aeb1df146756 254 return bitstatus;
mbed_official 76:aeb1df146756 255 }
mbed_official 76:aeb1df146756 256
mbed_official 76:aeb1df146756 257 /**
mbed_official 76:aeb1df146756 258 * @brief Clears the EXTI's line pending flags.
mbed_official 76:aeb1df146756 259 * @param EXTI_Line: specifies the EXTI lines flags to clear.
mbed_official 76:aeb1df146756 260 * This parameter can be any combination of EXTI_Linex where x can be (0..23).
mbed_official 76:aeb1df146756 261 * @retval None
mbed_official 76:aeb1df146756 262 */
mbed_official 76:aeb1df146756 263 void EXTI_ClearFlag(uint32_t EXTI_Line)
mbed_official 76:aeb1df146756 264 {
mbed_official 76:aeb1df146756 265 /* Check the parameters */
mbed_official 76:aeb1df146756 266 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 76:aeb1df146756 267
mbed_official 76:aeb1df146756 268 EXTI->PR = EXTI_Line;
mbed_official 76:aeb1df146756 269 }
mbed_official 76:aeb1df146756 270
mbed_official 76:aeb1df146756 271 /**
mbed_official 76:aeb1df146756 272 * @brief Checks whether the specified EXTI line is asserted or not.
mbed_official 76:aeb1df146756 273 * @param EXTI_Line: specifies the EXTI line to check.
mbed_official 76:aeb1df146756 274 * This parameter can be:
mbed_official 76:aeb1df146756 275 * EXTI_Linex: External interrupt line x where x(0..23).
mbed_official 76:aeb1df146756 276 * @retval The new state of EXTI_Line (SET or RESET).
mbed_official 76:aeb1df146756 277 */
mbed_official 76:aeb1df146756 278 ITStatus EXTI_GetITStatus(uint32_t EXTI_Line)
mbed_official 76:aeb1df146756 279 {
mbed_official 76:aeb1df146756 280 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 281 /* Check the parameters */
mbed_official 76:aeb1df146756 282 assert_param(IS_GET_EXTI_LINE(EXTI_Line));
mbed_official 76:aeb1df146756 283
mbed_official 76:aeb1df146756 284 if ((EXTI->PR & EXTI_Line) != (uint32_t)RESET)
mbed_official 76:aeb1df146756 285 {
mbed_official 76:aeb1df146756 286 bitstatus = SET;
mbed_official 76:aeb1df146756 287 }
mbed_official 76:aeb1df146756 288 else
mbed_official 76:aeb1df146756 289 {
mbed_official 76:aeb1df146756 290 bitstatus = RESET;
mbed_official 76:aeb1df146756 291 }
mbed_official 76:aeb1df146756 292 return bitstatus;
mbed_official 76:aeb1df146756 293 }
mbed_official 76:aeb1df146756 294
mbed_official 76:aeb1df146756 295 /**
mbed_official 76:aeb1df146756 296 * @brief Clears the EXTI's line pending bits.
mbed_official 76:aeb1df146756 297 * @param EXTI_Line: specifies the EXTI lines to clear.
mbed_official 76:aeb1df146756 298 * This parameter can be any combination of EXTI_Linex where x can be (0..23).
mbed_official 76:aeb1df146756 299 * @retval None
mbed_official 76:aeb1df146756 300 */
mbed_official 76:aeb1df146756 301 void EXTI_ClearITPendingBit(uint32_t EXTI_Line)
mbed_official 76:aeb1df146756 302 {
mbed_official 76:aeb1df146756 303 /* Check the parameters */
mbed_official 76:aeb1df146756 304 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 76:aeb1df146756 305
mbed_official 76:aeb1df146756 306 EXTI->PR = EXTI_Line;
mbed_official 76:aeb1df146756 307 }
mbed_official 76:aeb1df146756 308
mbed_official 76:aeb1df146756 309 /**
mbed_official 76:aeb1df146756 310 * @}
mbed_official 76:aeb1df146756 311 */
mbed_official 76:aeb1df146756 312
mbed_official 76:aeb1df146756 313 /**
mbed_official 76:aeb1df146756 314 * @}
mbed_official 76:aeb1df146756 315 */
mbed_official 76:aeb1df146756 316
mbed_official 76:aeb1df146756 317 /**
mbed_official 76:aeb1df146756 318 * @}
mbed_official 76:aeb1df146756 319 */
mbed_official 76:aeb1df146756 320
mbed_official 76:aeb1df146756 321 /**
mbed_official 76:aeb1df146756 322 * @}
mbed_official 76:aeb1df146756 323 */
mbed_official 76:aeb1df146756 324
mbed_official 76:aeb1df146756 325 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/