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_F103RB/stm32f10x_exti.c@70:c1fbde68b492, 2014-01-07 (annotated)

Committer:
mbed_official
Date:
Tue Jan 07 11:00:05 2014 +0000
Revision:
70:c1fbde68b492
Parent:
52:a51c77007319
Child:
84:f54042cbc282
Synchronized with git revision 3f438a307904431f2782db3c8fa49946b9fc1d85



Full URL: https://github.com/mbedmicro/mbed/commit/3f438a307904431f2782db3c8fa49946b9fc1d85/



[NUCLEO_F103RB] license text changed + sleep hal updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /**
mbed_official 52:a51c77007319 2 ******************************************************************************
mbed_official 52:a51c77007319 3 * @file stm32f10x_exti.c
mbed_official 52:a51c77007319 4 * @author MCD Application Team
mbed_official 52:a51c77007319 5 * @version V3.5.0
mbed_official 52:a51c77007319 6 * @date 11-March-2011
mbed_official 52:a51c77007319 7 * @brief This file provides all the EXTI firmware functions.
mbed_official 70:c1fbde68b492 8 *******************************************************************************
mbed_official 70:c1fbde68b492 9 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 10 * All rights reserved.
mbed_official 70:c1fbde68b492 11 *
mbed_official 70:c1fbde68b492 12 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 13 * modification, are permitted provided that the following conditions are met:
mbed_official 70:c1fbde68b492 14 *
mbed_official 70:c1fbde68b492 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 16 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 18 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 19 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 21 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 22 * without specific prior written permission.
mbed_official 70:c1fbde68b492 23 *
mbed_official 70:c1fbde68b492 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 34 *******************************************************************************
mbed_official 70:c1fbde68b492 35 */
mbed_official 52:a51c77007319 36
mbed_official 52:a51c77007319 37 /* Includes ------------------------------------------------------------------*/
mbed_official 52:a51c77007319 38 #include "stm32f10x_exti.h"
mbed_official 52:a51c77007319 39
mbed_official 52:a51c77007319 40 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 52:a51c77007319 41 * @{
mbed_official 52:a51c77007319 42 */
mbed_official 52:a51c77007319 43
mbed_official 52:a51c77007319 44 /** @defgroup EXTI
mbed_official 52:a51c77007319 45 * @brief EXTI driver modules
mbed_official 52:a51c77007319 46 * @{
mbed_official 52:a51c77007319 47 */
mbed_official 52:a51c77007319 48
mbed_official 52:a51c77007319 49 /** @defgroup EXTI_Private_TypesDefinitions
mbed_official 52:a51c77007319 50 * @{
mbed_official 52:a51c77007319 51 */
mbed_official 52:a51c77007319 52
mbed_official 52:a51c77007319 53 /**
mbed_official 52:a51c77007319 54 * @}
mbed_official 52:a51c77007319 55 */
mbed_official 52:a51c77007319 56
mbed_official 52:a51c77007319 57 /** @defgroup EXTI_Private_Defines
mbed_official 52:a51c77007319 58 * @{
mbed_official 52:a51c77007319 59 */
mbed_official 52:a51c77007319 60
mbed_official 52:a51c77007319 61 #define EXTI_LINENONE ((uint32_t)0x00000) /* No interrupt selected */
mbed_official 52:a51c77007319 62
mbed_official 52:a51c77007319 63 /**
mbed_official 52:a51c77007319 64 * @}
mbed_official 52:a51c77007319 65 */
mbed_official 52:a51c77007319 66
mbed_official 52:a51c77007319 67 /** @defgroup EXTI_Private_Macros
mbed_official 52:a51c77007319 68 * @{
mbed_official 52:a51c77007319 69 */
mbed_official 52:a51c77007319 70
mbed_official 52:a51c77007319 71 /**
mbed_official 52:a51c77007319 72 * @}
mbed_official 52:a51c77007319 73 */
mbed_official 52:a51c77007319 74
mbed_official 52:a51c77007319 75 /** @defgroup EXTI_Private_Variables
mbed_official 52:a51c77007319 76 * @{
mbed_official 52:a51c77007319 77 */
mbed_official 52:a51c77007319 78
mbed_official 52:a51c77007319 79 /**
mbed_official 52:a51c77007319 80 * @}
mbed_official 52:a51c77007319 81 */
mbed_official 52:a51c77007319 82
mbed_official 52:a51c77007319 83 /** @defgroup EXTI_Private_FunctionPrototypes
mbed_official 52:a51c77007319 84 * @{
mbed_official 52:a51c77007319 85 */
mbed_official 52:a51c77007319 86
mbed_official 52:a51c77007319 87 /**
mbed_official 52:a51c77007319 88 * @}
mbed_official 52:a51c77007319 89 */
mbed_official 52:a51c77007319 90
mbed_official 52:a51c77007319 91 /** @defgroup EXTI_Private_Functions
mbed_official 52:a51c77007319 92 * @{
mbed_official 52:a51c77007319 93 */
mbed_official 52:a51c77007319 94
mbed_official 52:a51c77007319 95 /**
mbed_official 52:a51c77007319 96 * @brief Deinitializes the EXTI peripheral registers to their default reset values.
mbed_official 52:a51c77007319 97 * @param None
mbed_official 52:a51c77007319 98 * @retval None
mbed_official 52:a51c77007319 99 */
mbed_official 52:a51c77007319 100 void EXTI_DeInit(void)
mbed_official 52:a51c77007319 101 {
mbed_official 52:a51c77007319 102 EXTI->IMR = 0x00000000;
mbed_official 52:a51c77007319 103 EXTI->EMR = 0x00000000;
mbed_official 52:a51c77007319 104 EXTI->RTSR = 0x00000000;
mbed_official 52:a51c77007319 105 EXTI->FTSR = 0x00000000;
mbed_official 52:a51c77007319 106 EXTI->PR = 0x000FFFFF;
mbed_official 52:a51c77007319 107 }
mbed_official 52:a51c77007319 108
mbed_official 52:a51c77007319 109 /**
mbed_official 52:a51c77007319 110 * @brief Initializes the EXTI peripheral according to the specified
mbed_official 52:a51c77007319 111 * parameters in the EXTI_InitStruct.
mbed_official 52:a51c77007319 112 * @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure
mbed_official 52:a51c77007319 113 * that contains the configuration information for the EXTI peripheral.
mbed_official 52:a51c77007319 114 * @retval None
mbed_official 52:a51c77007319 115 */
mbed_official 52:a51c77007319 116 void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct)
mbed_official 52:a51c77007319 117 {
mbed_official 52:a51c77007319 118 uint32_t tmp = 0;
mbed_official 52:a51c77007319 119
mbed_official 52:a51c77007319 120 /* Check the parameters */
mbed_official 52:a51c77007319 121 assert_param(IS_EXTI_MODE(EXTI_InitStruct->EXTI_Mode));
mbed_official 52:a51c77007319 122 assert_param(IS_EXTI_TRIGGER(EXTI_InitStruct->EXTI_Trigger));
mbed_official 52:a51c77007319 123 assert_param(IS_EXTI_LINE(EXTI_InitStruct->EXTI_Line));
mbed_official 52:a51c77007319 124 assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->EXTI_LineCmd));
mbed_official 52:a51c77007319 125
mbed_official 52:a51c77007319 126 tmp = (uint32_t)EXTI_BASE;
mbed_official 52:a51c77007319 127
mbed_official 52:a51c77007319 128 if (EXTI_InitStruct->EXTI_LineCmd != DISABLE)
mbed_official 52:a51c77007319 129 {
mbed_official 52:a51c77007319 130 /* Clear EXTI line configuration */
mbed_official 52:a51c77007319 131 EXTI->IMR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 132 EXTI->EMR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 133
mbed_official 52:a51c77007319 134 tmp += EXTI_InitStruct->EXTI_Mode;
mbed_official 52:a51c77007319 135
mbed_official 52:a51c77007319 136 *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 137
mbed_official 52:a51c77007319 138 /* Clear Rising Falling edge configuration */
mbed_official 52:a51c77007319 139 EXTI->RTSR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 140 EXTI->FTSR &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 141
mbed_official 52:a51c77007319 142 /* Select the trigger for the selected external interrupts */
mbed_official 52:a51c77007319 143 if (EXTI_InitStruct->EXTI_Trigger == EXTI_Trigger_Rising_Falling)
mbed_official 52:a51c77007319 144 {
mbed_official 52:a51c77007319 145 /* Rising Falling edge */
mbed_official 52:a51c77007319 146 EXTI->RTSR |= EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 147 EXTI->FTSR |= EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 148 }
mbed_official 52:a51c77007319 149 else
mbed_official 52:a51c77007319 150 {
mbed_official 52:a51c77007319 151 tmp = (uint32_t)EXTI_BASE;
mbed_official 52:a51c77007319 152 tmp += EXTI_InitStruct->EXTI_Trigger;
mbed_official 52:a51c77007319 153
mbed_official 52:a51c77007319 154 *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 155 }
mbed_official 52:a51c77007319 156 }
mbed_official 52:a51c77007319 157 else
mbed_official 52:a51c77007319 158 {
mbed_official 52:a51c77007319 159 tmp += EXTI_InitStruct->EXTI_Mode;
mbed_official 52:a51c77007319 160
mbed_official 52:a51c77007319 161 /* Disable the selected external lines */
mbed_official 52:a51c77007319 162 *(__IO uint32_t *) tmp &= ~EXTI_InitStruct->EXTI_Line;
mbed_official 52:a51c77007319 163 }
mbed_official 52:a51c77007319 164 }
mbed_official 52:a51c77007319 165
mbed_official 52:a51c77007319 166 /**
mbed_official 52:a51c77007319 167 * @brief Fills each EXTI_InitStruct member with its reset value.
mbed_official 52:a51c77007319 168 * @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure which will
mbed_official 52:a51c77007319 169 * be initialized.
mbed_official 52:a51c77007319 170 * @retval None
mbed_official 52:a51c77007319 171 */
mbed_official 52:a51c77007319 172 void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct)
mbed_official 52:a51c77007319 173 {
mbed_official 52:a51c77007319 174 EXTI_InitStruct->EXTI_Line = EXTI_LINENONE;
mbed_official 52:a51c77007319 175 EXTI_InitStruct->EXTI_Mode = EXTI_Mode_Interrupt;
mbed_official 52:a51c77007319 176 EXTI_InitStruct->EXTI_Trigger = EXTI_Trigger_Falling;
mbed_official 52:a51c77007319 177 EXTI_InitStruct->EXTI_LineCmd = DISABLE;
mbed_official 52:a51c77007319 178 }
mbed_official 52:a51c77007319 179
mbed_official 52:a51c77007319 180 /**
mbed_official 52:a51c77007319 181 * @brief Generates a Software interrupt.
mbed_official 52:a51c77007319 182 * @param EXTI_Line: specifies the EXTI lines to be enabled or disabled.
mbed_official 52:a51c77007319 183 * This parameter can be any combination of EXTI_Linex where x can be (0..19).
mbed_official 52:a51c77007319 184 * @retval None
mbed_official 52:a51c77007319 185 */
mbed_official 52:a51c77007319 186 void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line)
mbed_official 52:a51c77007319 187 {
mbed_official 52:a51c77007319 188 /* Check the parameters */
mbed_official 52:a51c77007319 189 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 52:a51c77007319 190
mbed_official 52:a51c77007319 191 EXTI->SWIER |= EXTI_Line;
mbed_official 52:a51c77007319 192 }
mbed_official 52:a51c77007319 193
mbed_official 52:a51c77007319 194 /**
mbed_official 52:a51c77007319 195 * @brief Checks whether the specified EXTI line flag is set or not.
mbed_official 52:a51c77007319 196 * @param EXTI_Line: specifies the EXTI line flag to check.
mbed_official 52:a51c77007319 197 * This parameter can be:
mbed_official 52:a51c77007319 198 * @arg EXTI_Linex: External interrupt line x where x(0..19)
mbed_official 52:a51c77007319 199 * @retval The new state of EXTI_Line (SET or RESET).
mbed_official 52:a51c77007319 200 */
mbed_official 52:a51c77007319 201 FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line)
mbed_official 52:a51c77007319 202 {
mbed_official 52:a51c77007319 203 FlagStatus bitstatus = RESET;
mbed_official 52:a51c77007319 204 /* Check the parameters */
mbed_official 52:a51c77007319 205 assert_param(IS_GET_EXTI_LINE(EXTI_Line));
mbed_official 52:a51c77007319 206
mbed_official 52:a51c77007319 207 if ((EXTI->PR & EXTI_Line) != (uint32_t)RESET)
mbed_official 52:a51c77007319 208 {
mbed_official 52:a51c77007319 209 bitstatus = SET;
mbed_official 52:a51c77007319 210 }
mbed_official 52:a51c77007319 211 else
mbed_official 52:a51c77007319 212 {
mbed_official 52:a51c77007319 213 bitstatus = RESET;
mbed_official 52:a51c77007319 214 }
mbed_official 52:a51c77007319 215 return bitstatus;
mbed_official 52:a51c77007319 216 }
mbed_official 52:a51c77007319 217
mbed_official 52:a51c77007319 218 /**
mbed_official 52:a51c77007319 219 * @brief Clears the EXTI's line pending flags.
mbed_official 52:a51c77007319 220 * @param EXTI_Line: specifies the EXTI lines flags to clear.
mbed_official 52:a51c77007319 221 * This parameter can be any combination of EXTI_Linex where x can be (0..19).
mbed_official 52:a51c77007319 222 * @retval None
mbed_official 52:a51c77007319 223 */
mbed_official 52:a51c77007319 224 void EXTI_ClearFlag(uint32_t EXTI_Line)
mbed_official 52:a51c77007319 225 {
mbed_official 52:a51c77007319 226 /* Check the parameters */
mbed_official 52:a51c77007319 227 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 52:a51c77007319 228
mbed_official 52:a51c77007319 229 EXTI->PR = EXTI_Line;
mbed_official 52:a51c77007319 230 }
mbed_official 52:a51c77007319 231
mbed_official 52:a51c77007319 232 /**
mbed_official 52:a51c77007319 233 * @brief Checks whether the specified EXTI line is asserted or not.
mbed_official 52:a51c77007319 234 * @param EXTI_Line: specifies the EXTI line to check.
mbed_official 52:a51c77007319 235 * This parameter can be:
mbed_official 52:a51c77007319 236 * @arg EXTI_Linex: External interrupt line x where x(0..19)
mbed_official 52:a51c77007319 237 * @retval The new state of EXTI_Line (SET or RESET).
mbed_official 52:a51c77007319 238 */
mbed_official 52:a51c77007319 239 ITStatus EXTI_GetITStatus(uint32_t EXTI_Line)
mbed_official 52:a51c77007319 240 {
mbed_official 52:a51c77007319 241 ITStatus bitstatus = RESET;
mbed_official 52:a51c77007319 242 uint32_t enablestatus = 0;
mbed_official 52:a51c77007319 243 /* Check the parameters */
mbed_official 52:a51c77007319 244 assert_param(IS_GET_EXTI_LINE(EXTI_Line));
mbed_official 52:a51c77007319 245
mbed_official 52:a51c77007319 246 enablestatus = EXTI->IMR & EXTI_Line;
mbed_official 52:a51c77007319 247 if (((EXTI->PR & EXTI_Line) != (uint32_t)RESET) && (enablestatus != (uint32_t)RESET))
mbed_official 52:a51c77007319 248 {
mbed_official 52:a51c77007319 249 bitstatus = SET;
mbed_official 52:a51c77007319 250 }
mbed_official 52:a51c77007319 251 else
mbed_official 52:a51c77007319 252 {
mbed_official 52:a51c77007319 253 bitstatus = RESET;
mbed_official 52:a51c77007319 254 }
mbed_official 52:a51c77007319 255 return bitstatus;
mbed_official 52:a51c77007319 256 }
mbed_official 52:a51c77007319 257
mbed_official 52:a51c77007319 258 /**
mbed_official 52:a51c77007319 259 * @brief Clears the EXTI's line pending bits.
mbed_official 52:a51c77007319 260 * @param EXTI_Line: specifies the EXTI lines to clear.
mbed_official 52:a51c77007319 261 * This parameter can be any combination of EXTI_Linex where x can be (0..19).
mbed_official 52:a51c77007319 262 * @retval None
mbed_official 52:a51c77007319 263 */
mbed_official 52:a51c77007319 264 void EXTI_ClearITPendingBit(uint32_t EXTI_Line)
mbed_official 52:a51c77007319 265 {
mbed_official 52:a51c77007319 266 /* Check the parameters */
mbed_official 52:a51c77007319 267 assert_param(IS_EXTI_LINE(EXTI_Line));
mbed_official 52:a51c77007319 268
mbed_official 52:a51c77007319 269 EXTI->PR = EXTI_Line;
mbed_official 52:a51c77007319 270 }
mbed_official 52:a51c77007319 271
mbed_official 52:a51c77007319 272 /**
mbed_official 52:a51c77007319 273 * @}
mbed_official 52:a51c77007319 274 */
mbed_official 52:a51c77007319 275
mbed_official 52:a51c77007319 276 /**
mbed_official 52:a51c77007319 277 * @}
mbed_official 52:a51c77007319 278 */
mbed_official 52:a51c77007319 279
mbed_official 52:a51c77007319 280 /**
mbed_official 52:a51c77007319 281 * @}
mbed_official 52:a51c77007319 282 */
mbed_official 52:a51c77007319 283
mbed_official 52:a51c77007319 284 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/