mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F411RE/stm32f4xx_hal_sram.c@235:685d5f11838f, 2014-06-23 (annotated)

Committer:
mbed_official
Date:
Mon Jun 23 14:00:09 2014 +0100
Revision:
235:685d5f11838f
Synchronized with git revision 9728c76667962b289ee9c4c687ef9f115db48cd3



Full URL: https://github.com/mbedmicro/mbed/commit/9728c76667962b289ee9c4c687ef9f115db48cd3/



[NUCLEO_F411RE] Add all target files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /**
mbed_official 235:685d5f11838f 2 ******************************************************************************
mbed_official 235:685d5f11838f 3 * @file stm32f4xx_hal_sram.c
mbed_official 235:685d5f11838f 4 * @author MCD Application Team
mbed_official 235:685d5f11838f 5 * @version V1.1.0
mbed_official 235:685d5f11838f 6 * @date 19-June-2014
mbed_official 235:685d5f11838f 7 * @brief SRAM HAL module driver.
mbed_official 235:685d5f11838f 8 * This file provides a generic firmware to drive SRAM memories
mbed_official 235:685d5f11838f 9 * mounted as external device.
mbed_official 235:685d5f11838f 10 *
mbed_official 235:685d5f11838f 11 @verbatim
mbed_official 235:685d5f11838f 12 ==============================================================================
mbed_official 235:685d5f11838f 13 ##### How to use this driver #####
mbed_official 235:685d5f11838f 14 ==============================================================================
mbed_official 235:685d5f11838f 15 [..]
mbed_official 235:685d5f11838f 16 This driver is a generic layered driver which contains a set of APIs used to
mbed_official 235:685d5f11838f 17 control SRAM memories. It uses the FMC layer functions to interface
mbed_official 235:685d5f11838f 18 with SRAM devices.
mbed_official 235:685d5f11838f 19 The following sequence should be followed to configure the FMC/FSMC to interface
mbed_official 235:685d5f11838f 20 with SRAM/PSRAM memories:
mbed_official 235:685d5f11838f 21
mbed_official 235:685d5f11838f 22 (#) Declare a SRAM_HandleTypeDef handle structure, for example:
mbed_official 235:685d5f11838f 23 SRAM_HandleTypeDef hsram; and:
mbed_official 235:685d5f11838f 24
mbed_official 235:685d5f11838f 25 (++) Fill the SRAM_HandleTypeDef handle "Init" field with the allowed
mbed_official 235:685d5f11838f 26 values of the structure member.
mbed_official 235:685d5f11838f 27
mbed_official 235:685d5f11838f 28 (++) Fill the SRAM_HandleTypeDef handle "Instance" field with a predefined
mbed_official 235:685d5f11838f 29 base register instance for NOR or SRAM device
mbed_official 235:685d5f11838f 30
mbed_official 235:685d5f11838f 31 (++) Fill the SRAM_HandleTypeDef handle "Extended" field with a predefined
mbed_official 235:685d5f11838f 32 base register instance for NOR or SRAM extended mode
mbed_official 235:685d5f11838f 33
mbed_official 235:685d5f11838f 34 (#) Declare two FMC_NORSRAM_TimingTypeDef structures, for both normal and extended
mbed_official 235:685d5f11838f 35 mode timings; for example:
mbed_official 235:685d5f11838f 36 FMC_NORSRAM_TimingTypeDef Timing and FMC_NORSRAM_TimingTypeDef ExTiming;
mbed_official 235:685d5f11838f 37 and fill its fields with the allowed values of the structure member.
mbed_official 235:685d5f11838f 38
mbed_official 235:685d5f11838f 39 (#) Initialize the SRAM Controller by calling the function HAL_SRAM_Init(). This function
mbed_official 235:685d5f11838f 40 performs the following sequence:
mbed_official 235:685d5f11838f 41
mbed_official 235:685d5f11838f 42 (##) MSP hardware layer configuration using the function HAL_SRAM_MspInit()
mbed_official 235:685d5f11838f 43 (##) Control register configuration using the FMC NORSRAM interface function
mbed_official 235:685d5f11838f 44 FMC_NORSRAM_Init()
mbed_official 235:685d5f11838f 45 (##) Timing register configuration using the FMC NORSRAM interface function
mbed_official 235:685d5f11838f 46 FMC_NORSRAM_Timing_Init()
mbed_official 235:685d5f11838f 47 (##) Extended mode Timing register configuration using the FMC NORSRAM interface function
mbed_official 235:685d5f11838f 48 FMC_NORSRAM_Extended_Timing_Init()
mbed_official 235:685d5f11838f 49 (##) Enable the SRAM device using the macro __FMC_NORSRAM_ENABLE()
mbed_official 235:685d5f11838f 50
mbed_official 235:685d5f11838f 51 (#) At this stage you can perform read/write accesses from/to the memory connected
mbed_official 235:685d5f11838f 52 to the NOR/SRAM Bank. You can perform either polling or DMA transfer using the
mbed_official 235:685d5f11838f 53 following APIs:
mbed_official 235:685d5f11838f 54 (++) HAL_SRAM_Read()/HAL_SRAM_Write() for polling read/write access
mbed_official 235:685d5f11838f 55 (++) HAL_SRAM_Read_DMA()/HAL_SRAM_Write_DMA() for DMA read/write transfer
mbed_official 235:685d5f11838f 56
mbed_official 235:685d5f11838f 57 (#) You can also control the SRAM device by calling the control APIs HAL_SRAM_WriteOperation_Enable()/
mbed_official 235:685d5f11838f 58 HAL_SRAM_WriteOperation_Disable() to respectively enable/disable the SRAM write operation
mbed_official 235:685d5f11838f 59
mbed_official 235:685d5f11838f 60 (#) You can continuously monitor the SRAM device HAL state by calling the function
mbed_official 235:685d5f11838f 61 HAL_SRAM_GetState()
mbed_official 235:685d5f11838f 62
mbed_official 235:685d5f11838f 63 @endverbatim
mbed_official 235:685d5f11838f 64 ******************************************************************************
mbed_official 235:685d5f11838f 65 * @attention
mbed_official 235:685d5f11838f 66 *
mbed_official 235:685d5f11838f 67 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 235:685d5f11838f 68 *
mbed_official 235:685d5f11838f 69 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 235:685d5f11838f 70 * are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 71 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 72 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 73 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 74 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 75 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 76 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 77 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 78 * without specific prior written permission.
mbed_official 235:685d5f11838f 79 *
mbed_official 235:685d5f11838f 80 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 81 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 82 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 83 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 84 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 85 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 86 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 87 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 88 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 89 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 90 *
mbed_official 235:685d5f11838f 91 ******************************************************************************
mbed_official 235:685d5f11838f 92 */
mbed_official 235:685d5f11838f 93
mbed_official 235:685d5f11838f 94 /* Includes ------------------------------------------------------------------*/
mbed_official 235:685d5f11838f 95 #include "stm32f4xx_hal.h"
mbed_official 235:685d5f11838f 96
mbed_official 235:685d5f11838f 97 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 235:685d5f11838f 98 * @{
mbed_official 235:685d5f11838f 99 */
mbed_official 235:685d5f11838f 100
mbed_official 235:685d5f11838f 101 /** @defgroup SRAM
mbed_official 235:685d5f11838f 102 * @brief SRAM driver modules
mbed_official 235:685d5f11838f 103 * @{
mbed_official 235:685d5f11838f 104 */
mbed_official 235:685d5f11838f 105 #ifdef HAL_SRAM_MODULE_ENABLED
mbed_official 235:685d5f11838f 106
mbed_official 235:685d5f11838f 107 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
mbed_official 235:685d5f11838f 108
mbed_official 235:685d5f11838f 109 /* Private typedef -----------------------------------------------------------*/
mbed_official 235:685d5f11838f 110 /* Private define ------------------------------------------------------------*/
mbed_official 235:685d5f11838f 111 /* Private macro -------------------------------------------------------------*/
mbed_official 235:685d5f11838f 112 /* Private variables ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 113 /* Private function prototypes -----------------------------------------------*/
mbed_official 235:685d5f11838f 114
mbed_official 235:685d5f11838f 115 /* Private functions ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 116
mbed_official 235:685d5f11838f 117 /** @defgroup SRAM_Private_Functions
mbed_official 235:685d5f11838f 118 * @{
mbed_official 235:685d5f11838f 119 */
mbed_official 235:685d5f11838f 120
mbed_official 235:685d5f11838f 121 /** @defgroup SRAM_Group1 Initialization and de-initialization functions
mbed_official 235:685d5f11838f 122 * @brief Initialization and Configuration functions
mbed_official 235:685d5f11838f 123 *
mbed_official 235:685d5f11838f 124 @verbatim
mbed_official 235:685d5f11838f 125 ==============================================================================
mbed_official 235:685d5f11838f 126 ##### SRAM Initialization and de_initialization functions #####
mbed_official 235:685d5f11838f 127 ==============================================================================
mbed_official 235:685d5f11838f 128 [..] This section provides functions allowing to initialize/de-initialize
mbed_official 235:685d5f11838f 129 the SRAM memory
mbed_official 235:685d5f11838f 130
mbed_official 235:685d5f11838f 131 @endverbatim
mbed_official 235:685d5f11838f 132 * @{
mbed_official 235:685d5f11838f 133 */
mbed_official 235:685d5f11838f 134
mbed_official 235:685d5f11838f 135 /**
mbed_official 235:685d5f11838f 136 * @brief Performs the SRAM device initialization sequence
mbed_official 235:685d5f11838f 137 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 138 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 139 * @param Timing: Pointer to SRAM control timing structure
mbed_official 235:685d5f11838f 140 * @param ExtTiming: Pointer to SRAM extended mode timing structure
mbed_official 235:685d5f11838f 141 * @retval HAL status
mbed_official 235:685d5f11838f 142 */
mbed_official 235:685d5f11838f 143 HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming)
mbed_official 235:685d5f11838f 144 {
mbed_official 235:685d5f11838f 145 /* Check the SRAM handle parameter */
mbed_official 235:685d5f11838f 146 if(hsram == NULL)
mbed_official 235:685d5f11838f 147 {
mbed_official 235:685d5f11838f 148 return HAL_ERROR;
mbed_official 235:685d5f11838f 149 }
mbed_official 235:685d5f11838f 150
mbed_official 235:685d5f11838f 151 if(hsram->State == HAL_SRAM_STATE_RESET)
mbed_official 235:685d5f11838f 152 {
mbed_official 235:685d5f11838f 153 /* Initialize the low level hardware (MSP) */
mbed_official 235:685d5f11838f 154 HAL_SRAM_MspInit(hsram);
mbed_official 235:685d5f11838f 155 }
mbed_official 235:685d5f11838f 156
mbed_official 235:685d5f11838f 157 /* Initialize SRAM control Interface */
mbed_official 235:685d5f11838f 158 FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));
mbed_official 235:685d5f11838f 159
mbed_official 235:685d5f11838f 160 /* Initialize SRAM timing Interface */
mbed_official 235:685d5f11838f 161 FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 162
mbed_official 235:685d5f11838f 163 /* Initialize SRAM extended mode timing Interface */
mbed_official 235:685d5f11838f 164 FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
mbed_official 235:685d5f11838f 165
mbed_official 235:685d5f11838f 166 /* Enable the NORSRAM device */
mbed_official 235:685d5f11838f 167 __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 168
mbed_official 235:685d5f11838f 169 return HAL_OK;
mbed_official 235:685d5f11838f 170 }
mbed_official 235:685d5f11838f 171
mbed_official 235:685d5f11838f 172 /**
mbed_official 235:685d5f11838f 173 * @brief Performs the SRAM device De-initialization sequence.
mbed_official 235:685d5f11838f 174 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 175 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 176 * @retval HAL status
mbed_official 235:685d5f11838f 177 */
mbed_official 235:685d5f11838f 178 HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 179 {
mbed_official 235:685d5f11838f 180 /* De-Initialize the low level hardware (MSP) */
mbed_official 235:685d5f11838f 181 HAL_SRAM_MspDeInit(hsram);
mbed_official 235:685d5f11838f 182
mbed_official 235:685d5f11838f 183 /* Configure the SRAM registers with their reset values */
mbed_official 235:685d5f11838f 184 FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 185
mbed_official 235:685d5f11838f 186 hsram->State = HAL_SRAM_STATE_RESET;
mbed_official 235:685d5f11838f 187
mbed_official 235:685d5f11838f 188 /* Release Lock */
mbed_official 235:685d5f11838f 189 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 190
mbed_official 235:685d5f11838f 191 return HAL_OK;
mbed_official 235:685d5f11838f 192 }
mbed_official 235:685d5f11838f 193
mbed_official 235:685d5f11838f 194 /**
mbed_official 235:685d5f11838f 195 * @brief SRAM MSP Init.
mbed_official 235:685d5f11838f 196 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 197 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 198 * @retval None
mbed_official 235:685d5f11838f 199 */
mbed_official 235:685d5f11838f 200 __weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 201 {
mbed_official 235:685d5f11838f 202 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 203 the HAL_SRAM_MspInit could be implemented in the user file
mbed_official 235:685d5f11838f 204 */
mbed_official 235:685d5f11838f 205 }
mbed_official 235:685d5f11838f 206
mbed_official 235:685d5f11838f 207 /**
mbed_official 235:685d5f11838f 208 * @brief SRAM MSP DeInit.
mbed_official 235:685d5f11838f 209 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 210 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 211 * @retval None
mbed_official 235:685d5f11838f 212 */
mbed_official 235:685d5f11838f 213 __weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 214 {
mbed_official 235:685d5f11838f 215 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 216 the HAL_SRAM_MspDeInit could be implemented in the user file
mbed_official 235:685d5f11838f 217 */
mbed_official 235:685d5f11838f 218 }
mbed_official 235:685d5f11838f 219
mbed_official 235:685d5f11838f 220 /**
mbed_official 235:685d5f11838f 221 * @brief DMA transfer complete callback.
mbed_official 235:685d5f11838f 222 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 223 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 224 * @retval None
mbed_official 235:685d5f11838f 225 */
mbed_official 235:685d5f11838f 226 __weak void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
mbed_official 235:685d5f11838f 227 {
mbed_official 235:685d5f11838f 228 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 229 the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
mbed_official 235:685d5f11838f 230 */
mbed_official 235:685d5f11838f 231 }
mbed_official 235:685d5f11838f 232
mbed_official 235:685d5f11838f 233 /**
mbed_official 235:685d5f11838f 234 * @brief DMA transfer complete error callback.
mbed_official 235:685d5f11838f 235 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 236 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 237 * @retval None
mbed_official 235:685d5f11838f 238 */
mbed_official 235:685d5f11838f 239 __weak void HAL_SRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
mbed_official 235:685d5f11838f 240 {
mbed_official 235:685d5f11838f 241 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 242 the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
mbed_official 235:685d5f11838f 243 */
mbed_official 235:685d5f11838f 244 }
mbed_official 235:685d5f11838f 245
mbed_official 235:685d5f11838f 246 /**
mbed_official 235:685d5f11838f 247 * @}
mbed_official 235:685d5f11838f 248 */
mbed_official 235:685d5f11838f 249
mbed_official 235:685d5f11838f 250 /** @defgroup SRAM_Group2 Input and Output functions
mbed_official 235:685d5f11838f 251 * @brief Input Output and memory control functions
mbed_official 235:685d5f11838f 252 *
mbed_official 235:685d5f11838f 253 @verbatim
mbed_official 235:685d5f11838f 254 ==============================================================================
mbed_official 235:685d5f11838f 255 ##### SRAM Input and Output functions #####
mbed_official 235:685d5f11838f 256 ==============================================================================
mbed_official 235:685d5f11838f 257 [..]
mbed_official 235:685d5f11838f 258 This section provides functions allowing to use and control the SRAM memory
mbed_official 235:685d5f11838f 259
mbed_official 235:685d5f11838f 260 @endverbatim
mbed_official 235:685d5f11838f 261 * @{
mbed_official 235:685d5f11838f 262 */
mbed_official 235:685d5f11838f 263
mbed_official 235:685d5f11838f 264 /**
mbed_official 235:685d5f11838f 265 * @brief Reads 8-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 266 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 267 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 268 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 269 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 270 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 271 * @retval HAL status
mbed_official 235:685d5f11838f 272 */
mbed_official 235:685d5f11838f 273 HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 274 {
mbed_official 235:685d5f11838f 275 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
mbed_official 235:685d5f11838f 276
mbed_official 235:685d5f11838f 277 /* Process Locked */
mbed_official 235:685d5f11838f 278 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 279
mbed_official 235:685d5f11838f 280 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 281 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 282
mbed_official 235:685d5f11838f 283 /* Read data from memory */
mbed_official 235:685d5f11838f 284 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 285 {
mbed_official 235:685d5f11838f 286 *pDstBuffer = *(__IO uint8_t *)pSramAddress;
mbed_official 235:685d5f11838f 287 pDstBuffer++;
mbed_official 235:685d5f11838f 288 pSramAddress++;
mbed_official 235:685d5f11838f 289 }
mbed_official 235:685d5f11838f 290
mbed_official 235:685d5f11838f 291 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 292 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 293
mbed_official 235:685d5f11838f 294 /* Process unlocked */
mbed_official 235:685d5f11838f 295 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 296
mbed_official 235:685d5f11838f 297 return HAL_OK;
mbed_official 235:685d5f11838f 298 }
mbed_official 235:685d5f11838f 299
mbed_official 235:685d5f11838f 300 /**
mbed_official 235:685d5f11838f 301 * @brief Writes 8-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 302 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 303 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 304 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 305 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 306 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 307 * @retval HAL status
mbed_official 235:685d5f11838f 308 */
mbed_official 235:685d5f11838f 309 HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 310 {
mbed_official 235:685d5f11838f 311 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
mbed_official 235:685d5f11838f 312
mbed_official 235:685d5f11838f 313 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 314 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 315 {
mbed_official 235:685d5f11838f 316 return HAL_ERROR;
mbed_official 235:685d5f11838f 317 }
mbed_official 235:685d5f11838f 318
mbed_official 235:685d5f11838f 319 /* Process Locked */
mbed_official 235:685d5f11838f 320 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 321
mbed_official 235:685d5f11838f 322 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 323 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 324
mbed_official 235:685d5f11838f 325 /* Write data to memory */
mbed_official 235:685d5f11838f 326 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 327 {
mbed_official 235:685d5f11838f 328 *(__IO uint8_t *)pSramAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 329 pSrcBuffer++;
mbed_official 235:685d5f11838f 330 pSramAddress++;
mbed_official 235:685d5f11838f 331 }
mbed_official 235:685d5f11838f 332
mbed_official 235:685d5f11838f 333 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 334 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 335
mbed_official 235:685d5f11838f 336 /* Process unlocked */
mbed_official 235:685d5f11838f 337 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 338
mbed_official 235:685d5f11838f 339 return HAL_OK;
mbed_official 235:685d5f11838f 340 }
mbed_official 235:685d5f11838f 341
mbed_official 235:685d5f11838f 342 /**
mbed_official 235:685d5f11838f 343 * @brief Reads 16-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 344 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 345 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 346 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 347 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 348 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 349 * @retval HAL status
mbed_official 235:685d5f11838f 350 */
mbed_official 235:685d5f11838f 351 HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 352 {
mbed_official 235:685d5f11838f 353 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
mbed_official 235:685d5f11838f 354
mbed_official 235:685d5f11838f 355 /* Process Locked */
mbed_official 235:685d5f11838f 356 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 357
mbed_official 235:685d5f11838f 358 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 359 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 360
mbed_official 235:685d5f11838f 361 /* Read data from memory */
mbed_official 235:685d5f11838f 362 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 363 {
mbed_official 235:685d5f11838f 364 *pDstBuffer = *(__IO uint16_t *)pSramAddress;
mbed_official 235:685d5f11838f 365 pDstBuffer++;
mbed_official 235:685d5f11838f 366 pSramAddress++;
mbed_official 235:685d5f11838f 367 }
mbed_official 235:685d5f11838f 368
mbed_official 235:685d5f11838f 369 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 370 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 371
mbed_official 235:685d5f11838f 372 /* Process unlocked */
mbed_official 235:685d5f11838f 373 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 374
mbed_official 235:685d5f11838f 375 return HAL_OK;
mbed_official 235:685d5f11838f 376 }
mbed_official 235:685d5f11838f 377
mbed_official 235:685d5f11838f 378 /**
mbed_official 235:685d5f11838f 379 * @brief Writes 16-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 380 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 381 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 382 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 383 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 384 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 385 * @retval HAL status
mbed_official 235:685d5f11838f 386 */
mbed_official 235:685d5f11838f 387 HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 388 {
mbed_official 235:685d5f11838f 389 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
mbed_official 235:685d5f11838f 390
mbed_official 235:685d5f11838f 391 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 392 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 393 {
mbed_official 235:685d5f11838f 394 return HAL_ERROR;
mbed_official 235:685d5f11838f 395 }
mbed_official 235:685d5f11838f 396
mbed_official 235:685d5f11838f 397 /* Process Locked */
mbed_official 235:685d5f11838f 398 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 399
mbed_official 235:685d5f11838f 400 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 401 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 402
mbed_official 235:685d5f11838f 403 /* Write data to memory */
mbed_official 235:685d5f11838f 404 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 405 {
mbed_official 235:685d5f11838f 406 *(__IO uint16_t *)pSramAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 407 pSrcBuffer++;
mbed_official 235:685d5f11838f 408 pSramAddress++;
mbed_official 235:685d5f11838f 409 }
mbed_official 235:685d5f11838f 410
mbed_official 235:685d5f11838f 411 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 412 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 413
mbed_official 235:685d5f11838f 414 /* Process unlocked */
mbed_official 235:685d5f11838f 415 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 416
mbed_official 235:685d5f11838f 417 return HAL_OK;
mbed_official 235:685d5f11838f 418 }
mbed_official 235:685d5f11838f 419
mbed_official 235:685d5f11838f 420 /**
mbed_official 235:685d5f11838f 421 * @brief Reads 32-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 422 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 423 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 424 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 425 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 426 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 427 * @retval HAL status
mbed_official 235:685d5f11838f 428 */
mbed_official 235:685d5f11838f 429 HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 430 {
mbed_official 235:685d5f11838f 431 /* Process Locked */
mbed_official 235:685d5f11838f 432 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 433
mbed_official 235:685d5f11838f 434 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 435 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 436
mbed_official 235:685d5f11838f 437 /* Read data from memory */
mbed_official 235:685d5f11838f 438 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 439 {
mbed_official 235:685d5f11838f 440 *pDstBuffer = *(__IO uint32_t *)pAddress;
mbed_official 235:685d5f11838f 441 pDstBuffer++;
mbed_official 235:685d5f11838f 442 pAddress++;
mbed_official 235:685d5f11838f 443 }
mbed_official 235:685d5f11838f 444
mbed_official 235:685d5f11838f 445 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 446 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 447
mbed_official 235:685d5f11838f 448 /* Process unlocked */
mbed_official 235:685d5f11838f 449 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 450
mbed_official 235:685d5f11838f 451 return HAL_OK;
mbed_official 235:685d5f11838f 452 }
mbed_official 235:685d5f11838f 453
mbed_official 235:685d5f11838f 454 /**
mbed_official 235:685d5f11838f 455 * @brief Writes 32-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 456 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 457 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 458 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 459 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 460 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 461 * @retval HAL status
mbed_official 235:685d5f11838f 462 */
mbed_official 235:685d5f11838f 463 HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 464 {
mbed_official 235:685d5f11838f 465 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 466 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 467 {
mbed_official 235:685d5f11838f 468 return HAL_ERROR;
mbed_official 235:685d5f11838f 469 }
mbed_official 235:685d5f11838f 470
mbed_official 235:685d5f11838f 471 /* Process Locked */
mbed_official 235:685d5f11838f 472 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 473
mbed_official 235:685d5f11838f 474 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 475 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 476
mbed_official 235:685d5f11838f 477 /* Write data to memory */
mbed_official 235:685d5f11838f 478 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 479 {
mbed_official 235:685d5f11838f 480 *(__IO uint32_t *)pAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 481 pSrcBuffer++;
mbed_official 235:685d5f11838f 482 pAddress++;
mbed_official 235:685d5f11838f 483 }
mbed_official 235:685d5f11838f 484
mbed_official 235:685d5f11838f 485 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 486 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 487
mbed_official 235:685d5f11838f 488 /* Process unlocked */
mbed_official 235:685d5f11838f 489 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 490
mbed_official 235:685d5f11838f 491 return HAL_OK;
mbed_official 235:685d5f11838f 492 }
mbed_official 235:685d5f11838f 493
mbed_official 235:685d5f11838f 494 /**
mbed_official 235:685d5f11838f 495 * @brief Reads a Words data from the SRAM memory using DMA transfer.
mbed_official 235:685d5f11838f 496 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 497 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 498 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 499 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 500 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 501 * @retval HAL status
mbed_official 235:685d5f11838f 502 */
mbed_official 235:685d5f11838f 503 HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 504 {
mbed_official 235:685d5f11838f 505 /* Process Locked */
mbed_official 235:685d5f11838f 506 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 507
mbed_official 235:685d5f11838f 508 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 509 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 510
mbed_official 235:685d5f11838f 511 /* Configure DMA user callbacks */
mbed_official 235:685d5f11838f 512 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 235:685d5f11838f 513 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 235:685d5f11838f 514
mbed_official 235:685d5f11838f 515 /* Enable the DMA Stream */
mbed_official 235:685d5f11838f 516 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
mbed_official 235:685d5f11838f 517
mbed_official 235:685d5f11838f 518 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 519 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 520
mbed_official 235:685d5f11838f 521 /* Process unlocked */
mbed_official 235:685d5f11838f 522 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 523
mbed_official 235:685d5f11838f 524 return HAL_OK;
mbed_official 235:685d5f11838f 525 }
mbed_official 235:685d5f11838f 526
mbed_official 235:685d5f11838f 527 /**
mbed_official 235:685d5f11838f 528 * @brief Writes a Words data buffer to SRAM memory using DMA transfer.
mbed_official 235:685d5f11838f 529 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 530 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 531 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 532 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 533 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 534 * @retval HAL status
mbed_official 235:685d5f11838f 535 */
mbed_official 235:685d5f11838f 536 HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 537 {
mbed_official 235:685d5f11838f 538 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 539 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 540 {
mbed_official 235:685d5f11838f 541 return HAL_ERROR;
mbed_official 235:685d5f11838f 542 }
mbed_official 235:685d5f11838f 543
mbed_official 235:685d5f11838f 544 /* Process Locked */
mbed_official 235:685d5f11838f 545 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 546
mbed_official 235:685d5f11838f 547 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 548 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 549
mbed_official 235:685d5f11838f 550 /* Configure DMA user callbacks */
mbed_official 235:685d5f11838f 551 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 235:685d5f11838f 552 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 235:685d5f11838f 553
mbed_official 235:685d5f11838f 554 /* Enable the DMA Stream */
mbed_official 235:685d5f11838f 555 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
mbed_official 235:685d5f11838f 556
mbed_official 235:685d5f11838f 557 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 558 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 559
mbed_official 235:685d5f11838f 560 /* Process unlocked */
mbed_official 235:685d5f11838f 561 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 562
mbed_official 235:685d5f11838f 563 return HAL_OK;
mbed_official 235:685d5f11838f 564 }
mbed_official 235:685d5f11838f 565
mbed_official 235:685d5f11838f 566 /**
mbed_official 235:685d5f11838f 567 * @}
mbed_official 235:685d5f11838f 568 */
mbed_official 235:685d5f11838f 569
mbed_official 235:685d5f11838f 570 /** @defgroup SRAM_Group3 Control functions
mbed_official 235:685d5f11838f 571 * @brief management functions
mbed_official 235:685d5f11838f 572 *
mbed_official 235:685d5f11838f 573 @verbatim
mbed_official 235:685d5f11838f 574 ==============================================================================
mbed_official 235:685d5f11838f 575 ##### SRAM Control functions #####
mbed_official 235:685d5f11838f 576 ==============================================================================
mbed_official 235:685d5f11838f 577 [..]
mbed_official 235:685d5f11838f 578 This subsection provides a set of functions allowing to control dynamically
mbed_official 235:685d5f11838f 579 the SRAM interface.
mbed_official 235:685d5f11838f 580
mbed_official 235:685d5f11838f 581 @endverbatim
mbed_official 235:685d5f11838f 582 * @{
mbed_official 235:685d5f11838f 583 */
mbed_official 235:685d5f11838f 584
mbed_official 235:685d5f11838f 585 /**
mbed_official 235:685d5f11838f 586 * @brief Enables dynamically SRAM write operation.
mbed_official 235:685d5f11838f 587 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 588 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 589 * @retval HAL status
mbed_official 235:685d5f11838f 590 */
mbed_official 235:685d5f11838f 591 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 592 {
mbed_official 235:685d5f11838f 593 /* Process Locked */
mbed_official 235:685d5f11838f 594 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 595
mbed_official 235:685d5f11838f 596 /* Enable write operation */
mbed_official 235:685d5f11838f 597 FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 598
mbed_official 235:685d5f11838f 599 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 600 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 601
mbed_official 235:685d5f11838f 602 /* Process unlocked */
mbed_official 235:685d5f11838f 603 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 604
mbed_official 235:685d5f11838f 605 return HAL_OK;
mbed_official 235:685d5f11838f 606 }
mbed_official 235:685d5f11838f 607
mbed_official 235:685d5f11838f 608 /**
mbed_official 235:685d5f11838f 609 * @brief Disables dynamically SRAM write operation.
mbed_official 235:685d5f11838f 610 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 611 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 612 * @retval HAL status
mbed_official 235:685d5f11838f 613 */
mbed_official 235:685d5f11838f 614 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 615 {
mbed_official 235:685d5f11838f 616 /* Process Locked */
mbed_official 235:685d5f11838f 617 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 618
mbed_official 235:685d5f11838f 619 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 620 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 621
mbed_official 235:685d5f11838f 622 /* Disable write operation */
mbed_official 235:685d5f11838f 623 FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 624
mbed_official 235:685d5f11838f 625 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 626 hsram->State = HAL_SRAM_STATE_PROTECTED;
mbed_official 235:685d5f11838f 627
mbed_official 235:685d5f11838f 628 /* Process unlocked */
mbed_official 235:685d5f11838f 629 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 630
mbed_official 235:685d5f11838f 631 return HAL_OK;
mbed_official 235:685d5f11838f 632 }
mbed_official 235:685d5f11838f 633
mbed_official 235:685d5f11838f 634 /**
mbed_official 235:685d5f11838f 635 * @}
mbed_official 235:685d5f11838f 636 */
mbed_official 235:685d5f11838f 637
mbed_official 235:685d5f11838f 638 /** @defgroup SRAM_Group4 State functions
mbed_official 235:685d5f11838f 639 * @brief Peripheral State functions
mbed_official 235:685d5f11838f 640 *
mbed_official 235:685d5f11838f 641 @verbatim
mbed_official 235:685d5f11838f 642 ==============================================================================
mbed_official 235:685d5f11838f 643 ##### SRAM State functions #####
mbed_official 235:685d5f11838f 644 ==============================================================================
mbed_official 235:685d5f11838f 645 [..]
mbed_official 235:685d5f11838f 646 This subsection permits to get in run-time the status of the SRAM controller
mbed_official 235:685d5f11838f 647 and the data flow.
mbed_official 235:685d5f11838f 648
mbed_official 235:685d5f11838f 649 @endverbatim
mbed_official 235:685d5f11838f 650 * @{
mbed_official 235:685d5f11838f 651 */
mbed_official 235:685d5f11838f 652
mbed_official 235:685d5f11838f 653 /**
mbed_official 235:685d5f11838f 654 * @brief Returns the SRAM controller state
mbed_official 235:685d5f11838f 655 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 656 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 657 * @retval HAL state
mbed_official 235:685d5f11838f 658 */
mbed_official 235:685d5f11838f 659 HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 660 {
mbed_official 235:685d5f11838f 661 return hsram->State;
mbed_official 235:685d5f11838f 662 }
mbed_official 235:685d5f11838f 663
mbed_official 235:685d5f11838f 664 /**
mbed_official 235:685d5f11838f 665 * @}
mbed_official 235:685d5f11838f 666 */
mbed_official 235:685d5f11838f 667
mbed_official 235:685d5f11838f 668 /**
mbed_official 235:685d5f11838f 669 * @}
mbed_official 235:685d5f11838f 670 */
mbed_official 235:685d5f11838f 671 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
mbed_official 235:685d5f11838f 672 #endif /* HAL_SRAM_MODULE_ENABLED */
mbed_official 235:685d5f11838f 673 /**
mbed_official 235:685d5f11838f 674 * @}
mbed_official 235:685d5f11838f 675 */
mbed_official 235:685d5f11838f 676
mbed_official 235:685d5f11838f 677 /**
mbed_official 235:685d5f11838f 678 * @}
mbed_official 235:685d5f11838f 679 */
mbed_official 235:685d5f11838f 680
mbed_official 235:685d5f11838f 681 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/