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_F401RE/stm32f4xx_hal_rng.c@106:ced8cbb51063, 2014-02-26 (annotated)

Committer:
mbed_official
Date:
Wed Feb 26 09:45:12 2014 +0000
Revision:
106:ced8cbb51063
Parent:
87:085cde657901 
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 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_rng.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 106:ced8cbb51063 5 * @version V1.0.0
mbed_official 106:ced8cbb51063 6 * @date 18-February-2014
mbed_official 87:085cde657901 7 * @brief RNG HAL module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of the Random Number Generator (RNG) peripheral:
mbed_official 87:085cde657901 10 * + Initialization/de-initialization functions
mbed_official 87:085cde657901 11 * + Peripheral Control functions
mbed_official 87:085cde657901 12 * + Peripheral State functions
mbed_official 87:085cde657901 13 *
mbed_official 87:085cde657901 14 @verbatim
mbed_official 87:085cde657901 15 ==============================================================================
mbed_official 87:085cde657901 16 ##### How to use this driver #####
mbed_official 87:085cde657901 17 ==============================================================================
mbed_official 87:085cde657901 18 [..]
mbed_official 87:085cde657901 19 The RNG HAL driver can be used as follows:
mbed_official 87:085cde657901 20
mbed_official 87:085cde657901 21 (#) Enable the RNG controller clock using __RNG_CLK_ENABLE() macro.
mbed_official 87:085cde657901 22 (#) Activate the RNG peripheral using __HAL_RNG_ENABLE() macro.
mbed_official 87:085cde657901 23 (#) Wait until the 32 bit Random Number Generator contains a valid
mbed_official 87:085cde657901 24 random data using (polling/interrupt) mode.
mbed_official 87:085cde657901 25 (#) Get the 32 bit random number using HAL_RNG_GetRandomNumber() function.
mbed_official 87:085cde657901 26
mbed_official 87:085cde657901 27 @endverbatim
mbed_official 87:085cde657901 28 ******************************************************************************
mbed_official 87:085cde657901 29 * @attention
mbed_official 87:085cde657901 30 *
mbed_official 87:085cde657901 31 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 32 *
mbed_official 87:085cde657901 33 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 34 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 35 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 36 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 37 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 38 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 39 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 40 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 41 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 42 * without specific prior written permission.
mbed_official 87:085cde657901 43 *
mbed_official 87:085cde657901 44 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 45 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 47 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 50 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 51 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 52 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 54 *
mbed_official 87:085cde657901 55 ******************************************************************************
mbed_official 87:085cde657901 56 */
mbed_official 87:085cde657901 57
mbed_official 87:085cde657901 58 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 59 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 60
mbed_official 87:085cde657901 61 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 62 * @{
mbed_official 87:085cde657901 63 */
mbed_official 87:085cde657901 64
mbed_official 87:085cde657901 65 /** @defgroup RNG
mbed_official 87:085cde657901 66 * @brief RNG HAL module driver.
mbed_official 87:085cde657901 67 * @{
mbed_official 87:085cde657901 68 */
mbed_official 87:085cde657901 69
mbed_official 87:085cde657901 70 #ifdef HAL_RNG_MODULE_ENABLED
mbed_official 87:085cde657901 71
mbed_official 87:085cde657901 72 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 73 /* Private define ------------------------------------------------------------*/
mbed_official 87:085cde657901 74 #define RNG_TIMEOUT_VALUE 1000
mbed_official 87:085cde657901 75 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 76 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 77 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 78 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 79
mbed_official 87:085cde657901 80 /** @defgroup RNG_Private_Functions
mbed_official 87:085cde657901 81 * @{
mbed_official 87:085cde657901 82 */
mbed_official 87:085cde657901 83
mbed_official 87:085cde657901 84 /** @defgroup RNG_Group1 Initialization and de-initialization functions
mbed_official 87:085cde657901 85 * @brief Initialization and Configuration functions.
mbed_official 87:085cde657901 86 *
mbed_official 87:085cde657901 87 @verbatim
mbed_official 87:085cde657901 88 ===============================================================================
mbed_official 87:085cde657901 89 ##### Initialization and de-initialization functions #####
mbed_official 87:085cde657901 90 ===============================================================================
mbed_official 87:085cde657901 91 [..] This section provides functions allowing to:
mbed_official 87:085cde657901 92 (+) Initialize the RNG according to the specified parameters
mbed_official 87:085cde657901 93 in the RNG_InitTypeDef and create the associated handle
mbed_official 87:085cde657901 94 (+) DeInitialize the RNG peripheral
mbed_official 87:085cde657901 95 (+) Initialize the RNG MSP
mbed_official 87:085cde657901 96 (+) DeInitialize RNG MSP
mbed_official 87:085cde657901 97
mbed_official 87:085cde657901 98 @endverbatim
mbed_official 87:085cde657901 99 * @{
mbed_official 87:085cde657901 100 */
mbed_official 87:085cde657901 101
mbed_official 87:085cde657901 102 /**
mbed_official 87:085cde657901 103 * @brief Initializes the RNG according to the specified
mbed_official 87:085cde657901 104 * parameters in the RNG_InitTypeDef and creates the associated handle.
mbed_official 87:085cde657901 105 * @param hrng: RNG handle
mbed_official 87:085cde657901 106 * @retval HAL status
mbed_official 87:085cde657901 107 */
mbed_official 87:085cde657901 108 HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 109 {
mbed_official 87:085cde657901 110 /* Check the RNG handle allocation */
mbed_official 87:085cde657901 111 if(hrng == NULL)
mbed_official 87:085cde657901 112 {
mbed_official 87:085cde657901 113 return HAL_ERROR;
mbed_official 87:085cde657901 114 }
mbed_official 87:085cde657901 115
mbed_official 87:085cde657901 116 if(hrng->State == HAL_RNG_STATE_RESET)
mbed_official 87:085cde657901 117 {
mbed_official 87:085cde657901 118 /* Init the low level hardware */
mbed_official 87:085cde657901 119 HAL_RNG_MspInit(hrng);
mbed_official 87:085cde657901 120 }
mbed_official 87:085cde657901 121
mbed_official 87:085cde657901 122 /* Enable the RNG Peripheral */
mbed_official 87:085cde657901 123 __HAL_RNG_ENABLE(hrng);
mbed_official 87:085cde657901 124
mbed_official 87:085cde657901 125 /* Initialize the RNG state */
mbed_official 87:085cde657901 126 hrng->State = HAL_RNG_STATE_READY;
mbed_official 87:085cde657901 127
mbed_official 87:085cde657901 128 /* Return function status */
mbed_official 87:085cde657901 129 return HAL_OK;
mbed_official 87:085cde657901 130 }
mbed_official 87:085cde657901 131
mbed_official 87:085cde657901 132 /**
mbed_official 87:085cde657901 133 * @brief DeInitializes the RNG peripheral.
mbed_official 87:085cde657901 134 * @param hrng: RNG handle
mbed_official 87:085cde657901 135 * @retval HAL status
mbed_official 87:085cde657901 136 */
mbed_official 87:085cde657901 137 HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 138 {
mbed_official 87:085cde657901 139 /* Check the RNG peripheral state */
mbed_official 87:085cde657901 140 if(hrng->State == HAL_RNG_STATE_BUSY)
mbed_official 87:085cde657901 141 {
mbed_official 87:085cde657901 142 return HAL_BUSY;
mbed_official 87:085cde657901 143 }
mbed_official 87:085cde657901 144
mbed_official 87:085cde657901 145 /* Update the RNG state */
mbed_official 87:085cde657901 146 hrng->State = HAL_RNG_STATE_BUSY;
mbed_official 87:085cde657901 147
mbed_official 87:085cde657901 148 /* Disable the RNG Peripheral */
mbed_official 87:085cde657901 149 __HAL_RNG_DISABLE(hrng);
mbed_official 87:085cde657901 150
mbed_official 87:085cde657901 151 /* Set the RNG registers to their reset values */
mbed_official 87:085cde657901 152 hrng->Instance->CR &= 0xFFFFFFF3;
mbed_official 87:085cde657901 153 hrng->Instance->SR &= 0xFFFFFF98;
mbed_official 87:085cde657901 154 hrng->Instance->DR &= 0x0;
mbed_official 87:085cde657901 155
mbed_official 87:085cde657901 156 /* DeInit the low level hardware */
mbed_official 87:085cde657901 157 HAL_RNG_MspDeInit(hrng);
mbed_official 87:085cde657901 158
mbed_official 106:ced8cbb51063 159 /* Update the RNG state */
mbed_official 87:085cde657901 160 hrng->State = HAL_RNG_STATE_RESET;
mbed_official 87:085cde657901 161
mbed_official 106:ced8cbb51063 162 /* Release Lock */
mbed_official 106:ced8cbb51063 163 __HAL_UNLOCK(hrng);
mbed_official 106:ced8cbb51063 164
mbed_official 106:ced8cbb51063 165 /* Return the function status */
mbed_official 87:085cde657901 166 return HAL_OK;
mbed_official 87:085cde657901 167 }
mbed_official 87:085cde657901 168
mbed_official 87:085cde657901 169 /**
mbed_official 87:085cde657901 170 * @brief Initializes the RNG MSP.
mbed_official 87:085cde657901 171 * @param hrng: RNG handle
mbed_official 87:085cde657901 172 * @retval None
mbed_official 87:085cde657901 173 */
mbed_official 87:085cde657901 174 __weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 175 {
mbed_official 87:085cde657901 176 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 177 the HAL_RNG_MspInit could be implemented in the user file
mbed_official 87:085cde657901 178 */
mbed_official 87:085cde657901 179 }
mbed_official 87:085cde657901 180
mbed_official 87:085cde657901 181 /**
mbed_official 87:085cde657901 182 * @brief DeInitializes the RNG MSP.
mbed_official 87:085cde657901 183 * @param hrng: RNG handle
mbed_official 87:085cde657901 184 * @retval None
mbed_official 87:085cde657901 185 */
mbed_official 87:085cde657901 186 __weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 187 {
mbed_official 87:085cde657901 188 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 189 the HAL_RNG_MspDeInit could be implemented in the user file
mbed_official 87:085cde657901 190 */
mbed_official 87:085cde657901 191 }
mbed_official 87:085cde657901 192
mbed_official 87:085cde657901 193 /**
mbed_official 87:085cde657901 194 * @}
mbed_official 87:085cde657901 195 */
mbed_official 87:085cde657901 196
mbed_official 87:085cde657901 197 /** @defgroup RNG_Group2 Peripheral Control functions
mbed_official 87:085cde657901 198 * @brief management functions.
mbed_official 87:085cde657901 199 *
mbed_official 87:085cde657901 200 @verbatim
mbed_official 87:085cde657901 201 ===============================================================================
mbed_official 87:085cde657901 202 ##### Peripheral Control functions #####
mbed_official 87:085cde657901 203 ===============================================================================
mbed_official 87:085cde657901 204 [..] This section provides functions allowing to:
mbed_official 87:085cde657901 205 (+) Get the 32 bit Random number
mbed_official 87:085cde657901 206 (+) Get the 32 bit Random number with interrupt enabled
mbed_official 87:085cde657901 207 (+) Handle RNG interrupt request
mbed_official 87:085cde657901 208
mbed_official 87:085cde657901 209
mbed_official 87:085cde657901 210 @endverbatim
mbed_official 87:085cde657901 211 * @{
mbed_official 87:085cde657901 212 */
mbed_official 87:085cde657901 213
mbed_official 87:085cde657901 214 /**
mbed_official 87:085cde657901 215 * @brief Returns a 32-bit random number.
mbed_official 87:085cde657901 216 * @note Each time the random number data is read the RNG_FLAG_DRDY flag
mbed_official 87:085cde657901 217 * is automatically cleared.
mbed_official 87:085cde657901 218 * @param hrng: RNG handle
mbed_official 87:085cde657901 219 * @retval 32-bit random number
mbed_official 87:085cde657901 220 */
mbed_official 87:085cde657901 221 uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 222 {
mbed_official 87:085cde657901 223 uint32_t random32bit = 0;
mbed_official 87:085cde657901 224 uint32_t timeout = 0;
mbed_official 87:085cde657901 225
mbed_official 87:085cde657901 226 /* Process Locked */
mbed_official 87:085cde657901 227 __HAL_LOCK(hrng);
mbed_official 87:085cde657901 228
mbed_official 87:085cde657901 229 timeout = HAL_GetTick() + RNG_TIMEOUT_VALUE;
mbed_official 87:085cde657901 230
mbed_official 87:085cde657901 231 /* Check if data register contains valid random data */
mbed_official 87:085cde657901 232 while(__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET)
mbed_official 87:085cde657901 233 {
mbed_official 87:085cde657901 234 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 235 {
mbed_official 87:085cde657901 236 return HAL_TIMEOUT;
mbed_official 87:085cde657901 237 }
mbed_official 87:085cde657901 238 }
mbed_official 87:085cde657901 239
mbed_official 87:085cde657901 240 /* Get a 32bit Random number */
mbed_official 87:085cde657901 241 random32bit = hrng->Instance->DR;
mbed_official 87:085cde657901 242
mbed_official 87:085cde657901 243 /* Process Unlocked */
mbed_official 87:085cde657901 244 __HAL_UNLOCK(hrng);
mbed_official 87:085cde657901 245
mbed_official 87:085cde657901 246 /* Return the 32 bit random number */
mbed_official 87:085cde657901 247 return random32bit;
mbed_official 87:085cde657901 248 }
mbed_official 87:085cde657901 249
mbed_official 87:085cde657901 250 /**
mbed_official 87:085cde657901 251 * @brief Returns a 32-bit random number with interrupt enabled.
mbed_official 87:085cde657901 252 * @param hrng: RNG handle
mbed_official 87:085cde657901 253 * @retval 32-bit random number
mbed_official 87:085cde657901 254 */
mbed_official 87:085cde657901 255 uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 256 {
mbed_official 87:085cde657901 257 uint32_t random32bit = 0;
mbed_official 87:085cde657901 258
mbed_official 87:085cde657901 259 /* Process Locked */
mbed_official 87:085cde657901 260 __HAL_LOCK(hrng);
mbed_official 87:085cde657901 261
mbed_official 87:085cde657901 262 /* Change RNG peripheral state */
mbed_official 87:085cde657901 263 hrng->State = HAL_RNG_STATE_BUSY;
mbed_official 87:085cde657901 264
mbed_official 87:085cde657901 265 /* Get a 32bit Random number */
mbed_official 87:085cde657901 266 random32bit = hrng->Instance->DR;
mbed_official 87:085cde657901 267
mbed_official 87:085cde657901 268 /* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */
mbed_official 87:085cde657901 269 __HAL_RNG_ENABLE_IT(hrng);
mbed_official 87:085cde657901 270
mbed_official 87:085cde657901 271 /* Return the 32 bit random number */
mbed_official 87:085cde657901 272 return random32bit;
mbed_official 87:085cde657901 273 }
mbed_official 87:085cde657901 274
mbed_official 87:085cde657901 275 /**
mbed_official 87:085cde657901 276 * @brief Handles RNG interrupt request.
mbed_official 87:085cde657901 277 * @note In the case of a clock error, the RNG is no more able to generate
mbed_official 87:085cde657901 278 * random numbers because the PLL48CLK clock is not correct. User has
mbed_official 87:085cde657901 279 * to check that the clock controller is correctly configured to provide
mbed_official 87:085cde657901 280 * the RNG clock and clear the CEIS bit using __HAL_RNG_CLEAR_FLAG().
mbed_official 87:085cde657901 281 * The clock error has no impact on the previously generated
mbed_official 87:085cde657901 282 * random numbers, and the RNG_DR register contents can be used.
mbed_official 87:085cde657901 283 * @note In the case of a seed error, the generation of random numbers is
mbed_official 87:085cde657901 284 * interrupted as long as the SECS bit is '1'. If a number is
mbed_official 87:085cde657901 285 * available in the RNG_DR register, it must not be used because it may
mbed_official 87:085cde657901 286 * not have enough entropy. In this case, it is recommended to clear the
mbed_official 87:085cde657901 287 * SEIS bit using __HAL_RNG_CLEAR_FLAG(), then disable and enable
mbed_official 87:085cde657901 288 * the RNG peripheral to reinitialize and restart the RNG.
mbed_official 87:085cde657901 289 * @param hrng: RNG handle
mbed_official 87:085cde657901 290 * @retval None
mbed_official 87:085cde657901 291
mbed_official 87:085cde657901 292 */
mbed_official 87:085cde657901 293 void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 294 {
mbed_official 87:085cde657901 295 /* RNG clock error interrupt occured */
mbed_official 87:085cde657901 296 if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_CEI) != RESET)
mbed_official 87:085cde657901 297 {
mbed_official 87:085cde657901 298 HAL_RNG_ErrorCallback(hrng);
mbed_official 87:085cde657901 299
mbed_official 87:085cde657901 300 /* Clear the clock error flag */
mbed_official 87:085cde657901 301 __HAL_RNG_CLEAR_FLAG(hrng, RNG_IT_CEI);
mbed_official 87:085cde657901 302
mbed_official 87:085cde657901 303 /* Change RNG peripheral state */
mbed_official 87:085cde657901 304 hrng->State = HAL_RNG_STATE_ERROR;
mbed_official 87:085cde657901 305
mbed_official 87:085cde657901 306 /* Process Unlocked */
mbed_official 87:085cde657901 307 __HAL_UNLOCK(hrng);
mbed_official 87:085cde657901 308 }
mbed_official 87:085cde657901 309
mbed_official 87:085cde657901 310 /* RNG seed error interrupt occured */
mbed_official 87:085cde657901 311 if(__HAL_RNG_GET_FLAG(hrng, RNG_IT_SEI) != RESET)
mbed_official 87:085cde657901 312 {
mbed_official 87:085cde657901 313 HAL_RNG_ErrorCallback(hrng);
mbed_official 87:085cde657901 314
mbed_official 87:085cde657901 315 /* Clear the seed error flag */
mbed_official 87:085cde657901 316 __HAL_RNG_CLEAR_FLAG(hrng, RNG_IT_SEI);
mbed_official 87:085cde657901 317
mbed_official 87:085cde657901 318 /* Change RNG peripheral state */
mbed_official 87:085cde657901 319 hrng->State = HAL_RNG_STATE_ERROR;
mbed_official 87:085cde657901 320
mbed_official 87:085cde657901 321 /* Process Unlocked */
mbed_official 87:085cde657901 322 __HAL_UNLOCK(hrng);
mbed_official 87:085cde657901 323 }
mbed_official 87:085cde657901 324
mbed_official 87:085cde657901 325 /* Check RNG data ready flag */
mbed_official 87:085cde657901 326 if(__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) != RESET)
mbed_official 87:085cde657901 327 {
mbed_official 87:085cde657901 328 /* Data Ready callback */
mbed_official 87:085cde657901 329 HAL_RNG_ReadyCallback(hrng);
mbed_official 87:085cde657901 330
mbed_official 87:085cde657901 331 /* Change RNG peripheral state */
mbed_official 87:085cde657901 332 hrng->State = HAL_RNG_STATE_READY;
mbed_official 87:085cde657901 333
mbed_official 87:085cde657901 334 /* Clear the RNG Data Ready flag */
mbed_official 87:085cde657901 335 __HAL_RNG_CLEAR_FLAG(hrng, RNG_FLAG_DRDY);
mbed_official 87:085cde657901 336
mbed_official 87:085cde657901 337 /* Process Unlocked */
mbed_official 87:085cde657901 338 __HAL_UNLOCK(hrng);
mbed_official 87:085cde657901 339 }
mbed_official 87:085cde657901 340 }
mbed_official 87:085cde657901 341
mbed_official 87:085cde657901 342 /**
mbed_official 87:085cde657901 343 * @brief Data Ready callback in non-blocking mode.
mbed_official 87:085cde657901 344 * @param hrng: RNG handle
mbed_official 87:085cde657901 345 * @retval None
mbed_official 87:085cde657901 346 */
mbed_official 87:085cde657901 347
mbed_official 87:085cde657901 348 __weak void HAL_RNG_ReadyCallback(RNG_HandleTypeDef* hrng)
mbed_official 87:085cde657901 349 {
mbed_official 87:085cde657901 350 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 351 the HAL_RNG_ReadyCallback could be implemented in the user file
mbed_official 87:085cde657901 352 */
mbed_official 87:085cde657901 353 }
mbed_official 87:085cde657901 354
mbed_official 87:085cde657901 355 /**
mbed_official 87:085cde657901 356 * @brief RNG error callbacks.
mbed_official 87:085cde657901 357 * @param hrng: RNG handle
mbed_official 87:085cde657901 358 * @retval None
mbed_official 87:085cde657901 359 */
mbed_official 87:085cde657901 360 __weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 361 {
mbed_official 87:085cde657901 362 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 363 the HAL_RNG_ErrorCallback could be implemented in the user file
mbed_official 87:085cde657901 364 */
mbed_official 87:085cde657901 365 }
mbed_official 87:085cde657901 366
mbed_official 87:085cde657901 367 /**
mbed_official 87:085cde657901 368 * @}
mbed_official 87:085cde657901 369 */
mbed_official 87:085cde657901 370
mbed_official 87:085cde657901 371 /** @defgroup RNG_Group3 Peripheral State functions
mbed_official 87:085cde657901 372 * @brief Peripheral State functions.
mbed_official 87:085cde657901 373 *
mbed_official 87:085cde657901 374 @verbatim
mbed_official 87:085cde657901 375 ===============================================================================
mbed_official 87:085cde657901 376 ##### Peripheral State functions #####
mbed_official 87:085cde657901 377 ===============================================================================
mbed_official 87:085cde657901 378 [..]
mbed_official 87:085cde657901 379 This subsection permits to get in run-time the status of the peripheral
mbed_official 87:085cde657901 380 and the data flow.
mbed_official 87:085cde657901 381
mbed_official 87:085cde657901 382 @endverbatim
mbed_official 87:085cde657901 383 * @{
mbed_official 87:085cde657901 384 */
mbed_official 87:085cde657901 385
mbed_official 87:085cde657901 386 /**
mbed_official 87:085cde657901 387 * @brief Returns the RNG state.
mbed_official 87:085cde657901 388 * @param hrng: RNG handle
mbed_official 87:085cde657901 389 * @retval HAL state
mbed_official 87:085cde657901 390 */
mbed_official 87:085cde657901 391 HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
mbed_official 87:085cde657901 392 {
mbed_official 87:085cde657901 393 return hrng->State;
mbed_official 87:085cde657901 394 }
mbed_official 87:085cde657901 395
mbed_official 87:085cde657901 396 /**
mbed_official 87:085cde657901 397 * @}
mbed_official 87:085cde657901 398 */
mbed_official 87:085cde657901 399
mbed_official 87:085cde657901 400 /**
mbed_official 87:085cde657901 401 * @}
mbed_official 87:085cde657901 402 */
mbed_official 87:085cde657901 403
mbed_official 87:085cde657901 404 #endif /* HAL_RNG_MODULE_ENABLED */
mbed_official 87:085cde657901 405 /**
mbed_official 87:085cde657901 406 * @}
mbed_official 87:085cde657901 407 */
mbed_official 87:085cde657901 408
mbed_official 87:085cde657901 409 /**
mbed_official 87:085cde657901 410 * @}
mbed_official 87:085cde657901 411 */
mbed_official 87:085cde657901 412
mbed_official 87:085cde657901 413 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
mbed_official 87:085cde657901 414