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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

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

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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_sram.c@613:bc40b8d2aec4, 2015-08-20 (annotated)

Committer:
mbed_official
Date:
Thu Aug 20 10:45:13 2015 +0100
Revision:
613:bc40b8d2aec4
Parent:
532:fe11edbda85c 
Synchronized with git revision 92ca8c7b60a283b6bb60eb65b183dac1599f0ade



Full URL: https://github.com/mbedmicro/mbed/commit/92ca8c7b60a283b6bb60eb65b183dac1599f0ade/



Nordic: update application start address in GCC linker script

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 613:bc40b8d2aec4 5 * @version V1.3.2
mbed_official 613:bc40b8d2aec4 6 * @date 26-June-2015
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 532:fe11edbda85c 67 * <h2><center>&copy; COPYRIGHT(c) 2015 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 532:fe11edbda85c 101 /** @defgroup SRAM 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 532:fe11edbda85c 107 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\
mbed_official 532:fe11edbda85c 108 defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
mbed_official 532:fe11edbda85c 109 defined(STM32F446xx)
mbed_official 235:685d5f11838f 110
mbed_official 235:685d5f11838f 111 /* Private typedef -----------------------------------------------------------*/
mbed_official 235:685d5f11838f 112 /* Private define ------------------------------------------------------------*/
mbed_official 235:685d5f11838f 113 /* Private macro -------------------------------------------------------------*/
mbed_official 235:685d5f11838f 114 /* Private variables ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 115 /* Private functions ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 116
mbed_official 532:fe11edbda85c 117 /* Exported functions --------------------------------------------------------*/
mbed_official 532:fe11edbda85c 118 /** @defgroup SRAM_Exported_Functions SRAM Exported Functions
mbed_official 235:685d5f11838f 119 * @{
mbed_official 235:685d5f11838f 120 */
mbed_official 532:fe11edbda85c 121 /** @defgroup SRAM_Exported_Functions_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 613:bc40b8d2aec4 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 532:fe11edbda85c 153 /* Allocate lock resource and initialize it */
mbed_official 532:fe11edbda85c 154 hsram->Lock = HAL_UNLOCKED;
mbed_official 235:685d5f11838f 155 /* Initialize the low level hardware (MSP) */
mbed_official 235:685d5f11838f 156 HAL_SRAM_MspInit(hsram);
mbed_official 235:685d5f11838f 157 }
mbed_official 235:685d5f11838f 158
mbed_official 235:685d5f11838f 159 /* Initialize SRAM control Interface */
mbed_official 235:685d5f11838f 160 FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));
mbed_official 235:685d5f11838f 161
mbed_official 235:685d5f11838f 162 /* Initialize SRAM timing Interface */
mbed_official 235:685d5f11838f 163 FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 164
mbed_official 235:685d5f11838f 165 /* Initialize SRAM extended mode timing Interface */
mbed_official 235:685d5f11838f 166 FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
mbed_official 235:685d5f11838f 167
mbed_official 235:685d5f11838f 168 /* Enable the NORSRAM device */
mbed_official 235:685d5f11838f 169 __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 170
mbed_official 235:685d5f11838f 171 return HAL_OK;
mbed_official 235:685d5f11838f 172 }
mbed_official 235:685d5f11838f 173
mbed_official 235:685d5f11838f 174 /**
mbed_official 235:685d5f11838f 175 * @brief Performs the SRAM device De-initialization sequence.
mbed_official 235:685d5f11838f 176 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 177 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 178 * @retval HAL status
mbed_official 235:685d5f11838f 179 */
mbed_official 235:685d5f11838f 180 HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 181 {
mbed_official 235:685d5f11838f 182 /* De-Initialize the low level hardware (MSP) */
mbed_official 235:685d5f11838f 183 HAL_SRAM_MspDeInit(hsram);
mbed_official 235:685d5f11838f 184
mbed_official 235:685d5f11838f 185 /* Configure the SRAM registers with their reset values */
mbed_official 235:685d5f11838f 186 FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 187
mbed_official 235:685d5f11838f 188 hsram->State = HAL_SRAM_STATE_RESET;
mbed_official 235:685d5f11838f 189
mbed_official 235:685d5f11838f 190 /* Release Lock */
mbed_official 235:685d5f11838f 191 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 192
mbed_official 235:685d5f11838f 193 return HAL_OK;
mbed_official 235:685d5f11838f 194 }
mbed_official 235:685d5f11838f 195
mbed_official 235:685d5f11838f 196 /**
mbed_official 235:685d5f11838f 197 * @brief SRAM MSP Init.
mbed_official 235:685d5f11838f 198 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 199 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 200 * @retval None
mbed_official 235:685d5f11838f 201 */
mbed_official 235:685d5f11838f 202 __weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 203 {
mbed_official 235:685d5f11838f 204 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 205 the HAL_SRAM_MspInit could be implemented in the user file
mbed_official 235:685d5f11838f 206 */
mbed_official 235:685d5f11838f 207 }
mbed_official 235:685d5f11838f 208
mbed_official 235:685d5f11838f 209 /**
mbed_official 235:685d5f11838f 210 * @brief SRAM MSP DeInit.
mbed_official 235:685d5f11838f 211 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 212 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 213 * @retval None
mbed_official 235:685d5f11838f 214 */
mbed_official 235:685d5f11838f 215 __weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 216 {
mbed_official 235:685d5f11838f 217 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 218 the HAL_SRAM_MspDeInit could be implemented in the user file
mbed_official 235:685d5f11838f 219 */
mbed_official 235:685d5f11838f 220 }
mbed_official 235:685d5f11838f 221
mbed_official 235:685d5f11838f 222 /**
mbed_official 235:685d5f11838f 223 * @brief DMA transfer complete callback.
mbed_official 532:fe11edbda85c 224 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 225 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 226 * @retval None
mbed_official 235:685d5f11838f 227 */
mbed_official 235:685d5f11838f 228 __weak void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
mbed_official 235:685d5f11838f 229 {
mbed_official 235:685d5f11838f 230 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 231 the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
mbed_official 235:685d5f11838f 232 */
mbed_official 235:685d5f11838f 233 }
mbed_official 235:685d5f11838f 234
mbed_official 235:685d5f11838f 235 /**
mbed_official 235:685d5f11838f 236 * @brief DMA transfer complete error callback.
mbed_official 532:fe11edbda85c 237 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 238 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 239 * @retval None
mbed_official 235:685d5f11838f 240 */
mbed_official 235:685d5f11838f 241 __weak void HAL_SRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
mbed_official 235:685d5f11838f 242 {
mbed_official 235:685d5f11838f 243 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 244 the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
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 */
mbed_official 235:685d5f11838f 251
mbed_official 532:fe11edbda85c 252 /** @defgroup SRAM_Exported_Functions_Group2 Input and Output functions
mbed_official 235:685d5f11838f 253 * @brief Input Output and memory control functions
mbed_official 235:685d5f11838f 254 *
mbed_official 235:685d5f11838f 255 @verbatim
mbed_official 235:685d5f11838f 256 ==============================================================================
mbed_official 235:685d5f11838f 257 ##### SRAM Input and Output functions #####
mbed_official 235:685d5f11838f 258 ==============================================================================
mbed_official 235:685d5f11838f 259 [..]
mbed_official 235:685d5f11838f 260 This section provides functions allowing to use and control the SRAM memory
mbed_official 235:685d5f11838f 261
mbed_official 235:685d5f11838f 262 @endverbatim
mbed_official 235:685d5f11838f 263 * @{
mbed_official 235:685d5f11838f 264 */
mbed_official 235:685d5f11838f 265
mbed_official 235:685d5f11838f 266 /**
mbed_official 235:685d5f11838f 267 * @brief Reads 8-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 268 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 269 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 270 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 271 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 272 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 273 * @retval HAL status
mbed_official 235:685d5f11838f 274 */
mbed_official 235:685d5f11838f 275 HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 276 {
mbed_official 235:685d5f11838f 277 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
mbed_official 235:685d5f11838f 278
mbed_official 235:685d5f11838f 279 /* Process Locked */
mbed_official 235:685d5f11838f 280 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 281
mbed_official 235:685d5f11838f 282 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 283 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 284
mbed_official 235:685d5f11838f 285 /* Read data from memory */
mbed_official 235:685d5f11838f 286 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 287 {
mbed_official 235:685d5f11838f 288 *pDstBuffer = *(__IO uint8_t *)pSramAddress;
mbed_official 235:685d5f11838f 289 pDstBuffer++;
mbed_official 235:685d5f11838f 290 pSramAddress++;
mbed_official 235:685d5f11838f 291 }
mbed_official 235:685d5f11838f 292
mbed_official 235:685d5f11838f 293 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 294 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 295
mbed_official 235:685d5f11838f 296 /* Process unlocked */
mbed_official 235:685d5f11838f 297 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 298
mbed_official 235:685d5f11838f 299 return HAL_OK;
mbed_official 235:685d5f11838f 300 }
mbed_official 235:685d5f11838f 301
mbed_official 235:685d5f11838f 302 /**
mbed_official 235:685d5f11838f 303 * @brief Writes 8-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 304 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 305 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 306 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 307 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 308 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 309 * @retval HAL status
mbed_official 235:685d5f11838f 310 */
mbed_official 235:685d5f11838f 311 HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 312 {
mbed_official 235:685d5f11838f 313 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
mbed_official 235:685d5f11838f 314
mbed_official 235:685d5f11838f 315 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 316 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 317 {
mbed_official 235:685d5f11838f 318 return HAL_ERROR;
mbed_official 235:685d5f11838f 319 }
mbed_official 235:685d5f11838f 320
mbed_official 235:685d5f11838f 321 /* Process Locked */
mbed_official 235:685d5f11838f 322 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 323
mbed_official 235:685d5f11838f 324 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 325 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 326
mbed_official 235:685d5f11838f 327 /* Write data to memory */
mbed_official 235:685d5f11838f 328 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 329 {
mbed_official 235:685d5f11838f 330 *(__IO uint8_t *)pSramAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 331 pSrcBuffer++;
mbed_official 235:685d5f11838f 332 pSramAddress++;
mbed_official 235:685d5f11838f 333 }
mbed_official 235:685d5f11838f 334
mbed_official 235:685d5f11838f 335 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 336 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 337
mbed_official 235:685d5f11838f 338 /* Process unlocked */
mbed_official 235:685d5f11838f 339 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 340
mbed_official 235:685d5f11838f 341 return HAL_OK;
mbed_official 235:685d5f11838f 342 }
mbed_official 235:685d5f11838f 343
mbed_official 235:685d5f11838f 344 /**
mbed_official 235:685d5f11838f 345 * @brief Reads 16-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 346 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 347 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 348 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 349 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 350 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 351 * @retval HAL status
mbed_official 235:685d5f11838f 352 */
mbed_official 235:685d5f11838f 353 HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 354 {
mbed_official 235:685d5f11838f 355 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
mbed_official 235:685d5f11838f 356
mbed_official 235:685d5f11838f 357 /* Process Locked */
mbed_official 235:685d5f11838f 358 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 359
mbed_official 235:685d5f11838f 360 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 361 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 362
mbed_official 235:685d5f11838f 363 /* Read data from memory */
mbed_official 235:685d5f11838f 364 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 365 {
mbed_official 235:685d5f11838f 366 *pDstBuffer = *(__IO uint16_t *)pSramAddress;
mbed_official 235:685d5f11838f 367 pDstBuffer++;
mbed_official 235:685d5f11838f 368 pSramAddress++;
mbed_official 235:685d5f11838f 369 }
mbed_official 235:685d5f11838f 370
mbed_official 235:685d5f11838f 371 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 372 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 373
mbed_official 235:685d5f11838f 374 /* Process unlocked */
mbed_official 235:685d5f11838f 375 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 376
mbed_official 235:685d5f11838f 377 return HAL_OK;
mbed_official 235:685d5f11838f 378 }
mbed_official 235:685d5f11838f 379
mbed_official 235:685d5f11838f 380 /**
mbed_official 235:685d5f11838f 381 * @brief Writes 16-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 382 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 383 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 384 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 385 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 386 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 387 * @retval HAL status
mbed_official 235:685d5f11838f 388 */
mbed_official 235:685d5f11838f 389 HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 390 {
mbed_official 235:685d5f11838f 391 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
mbed_official 235:685d5f11838f 392
mbed_official 235:685d5f11838f 393 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 394 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 395 {
mbed_official 235:685d5f11838f 396 return HAL_ERROR;
mbed_official 235:685d5f11838f 397 }
mbed_official 235:685d5f11838f 398
mbed_official 235:685d5f11838f 399 /* Process Locked */
mbed_official 235:685d5f11838f 400 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 401
mbed_official 235:685d5f11838f 402 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 403 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 404
mbed_official 235:685d5f11838f 405 /* Write data to memory */
mbed_official 235:685d5f11838f 406 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 407 {
mbed_official 235:685d5f11838f 408 *(__IO uint16_t *)pSramAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 409 pSrcBuffer++;
mbed_official 235:685d5f11838f 410 pSramAddress++;
mbed_official 235:685d5f11838f 411 }
mbed_official 235:685d5f11838f 412
mbed_official 235:685d5f11838f 413 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 414 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 415
mbed_official 235:685d5f11838f 416 /* Process unlocked */
mbed_official 235:685d5f11838f 417 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 418
mbed_official 235:685d5f11838f 419 return HAL_OK;
mbed_official 235:685d5f11838f 420 }
mbed_official 235:685d5f11838f 421
mbed_official 235:685d5f11838f 422 /**
mbed_official 235:685d5f11838f 423 * @brief Reads 32-bit buffer from SRAM memory.
mbed_official 235:685d5f11838f 424 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 425 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 426 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 427 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 428 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 429 * @retval HAL status
mbed_official 235:685d5f11838f 430 */
mbed_official 235:685d5f11838f 431 HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 432 {
mbed_official 235:685d5f11838f 433 /* Process Locked */
mbed_official 235:685d5f11838f 434 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 435
mbed_official 235:685d5f11838f 436 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 437 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 438
mbed_official 235:685d5f11838f 439 /* Read data from memory */
mbed_official 235:685d5f11838f 440 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 441 {
mbed_official 235:685d5f11838f 442 *pDstBuffer = *(__IO uint32_t *)pAddress;
mbed_official 235:685d5f11838f 443 pDstBuffer++;
mbed_official 235:685d5f11838f 444 pAddress++;
mbed_official 235:685d5f11838f 445 }
mbed_official 235:685d5f11838f 446
mbed_official 235:685d5f11838f 447 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 448 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 449
mbed_official 235:685d5f11838f 450 /* Process unlocked */
mbed_official 235:685d5f11838f 451 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 452
mbed_official 235:685d5f11838f 453 return HAL_OK;
mbed_official 235:685d5f11838f 454 }
mbed_official 235:685d5f11838f 455
mbed_official 235:685d5f11838f 456 /**
mbed_official 235:685d5f11838f 457 * @brief Writes 32-bit buffer to SRAM memory.
mbed_official 235:685d5f11838f 458 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 459 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 460 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 461 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 462 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 463 * @retval HAL status
mbed_official 235:685d5f11838f 464 */
mbed_official 235:685d5f11838f 465 HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 466 {
mbed_official 235:685d5f11838f 467 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 468 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 469 {
mbed_official 235:685d5f11838f 470 return HAL_ERROR;
mbed_official 235:685d5f11838f 471 }
mbed_official 235:685d5f11838f 472
mbed_official 235:685d5f11838f 473 /* Process Locked */
mbed_official 235:685d5f11838f 474 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 475
mbed_official 235:685d5f11838f 476 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 477 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 478
mbed_official 235:685d5f11838f 479 /* Write data to memory */
mbed_official 235:685d5f11838f 480 for(; BufferSize != 0; BufferSize--)
mbed_official 235:685d5f11838f 481 {
mbed_official 235:685d5f11838f 482 *(__IO uint32_t *)pAddress = *pSrcBuffer;
mbed_official 235:685d5f11838f 483 pSrcBuffer++;
mbed_official 235:685d5f11838f 484 pAddress++;
mbed_official 235:685d5f11838f 485 }
mbed_official 235:685d5f11838f 486
mbed_official 235:685d5f11838f 487 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 488 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 489
mbed_official 235:685d5f11838f 490 /* Process unlocked */
mbed_official 235:685d5f11838f 491 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 492
mbed_official 235:685d5f11838f 493 return HAL_OK;
mbed_official 235:685d5f11838f 494 }
mbed_official 235:685d5f11838f 495
mbed_official 235:685d5f11838f 496 /**
mbed_official 235:685d5f11838f 497 * @brief Reads a Words data from the SRAM memory using DMA transfer.
mbed_official 235:685d5f11838f 498 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 499 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 500 * @param pAddress: Pointer to read start address
mbed_official 235:685d5f11838f 501 * @param pDstBuffer: Pointer to destination buffer
mbed_official 235:685d5f11838f 502 * @param BufferSize: Size of the buffer to read from memory
mbed_official 235:685d5f11838f 503 * @retval HAL status
mbed_official 235:685d5f11838f 504 */
mbed_official 235:685d5f11838f 505 HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 506 {
mbed_official 235:685d5f11838f 507 /* Process Locked */
mbed_official 235:685d5f11838f 508 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 509
mbed_official 235:685d5f11838f 510 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 511 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 512
mbed_official 235:685d5f11838f 513 /* Configure DMA user callbacks */
mbed_official 235:685d5f11838f 514 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 235:685d5f11838f 515 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 235:685d5f11838f 516
mbed_official 235:685d5f11838f 517 /* Enable the DMA Stream */
mbed_official 235:685d5f11838f 518 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
mbed_official 235:685d5f11838f 519
mbed_official 235:685d5f11838f 520 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 521 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 522
mbed_official 235:685d5f11838f 523 /* Process unlocked */
mbed_official 235:685d5f11838f 524 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 525
mbed_official 235:685d5f11838f 526 return HAL_OK;
mbed_official 235:685d5f11838f 527 }
mbed_official 235:685d5f11838f 528
mbed_official 235:685d5f11838f 529 /**
mbed_official 235:685d5f11838f 530 * @brief Writes a Words data buffer to SRAM memory using DMA transfer.
mbed_official 235:685d5f11838f 531 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 532 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 533 * @param pAddress: Pointer to write start address
mbed_official 235:685d5f11838f 534 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 235:685d5f11838f 535 * @param BufferSize: Size of the buffer to write to memory
mbed_official 235:685d5f11838f 536 * @retval HAL status
mbed_official 235:685d5f11838f 537 */
mbed_official 235:685d5f11838f 538 HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 235:685d5f11838f 539 {
mbed_official 235:685d5f11838f 540 /* Check the SRAM controller state */
mbed_official 235:685d5f11838f 541 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 235:685d5f11838f 542 {
mbed_official 235:685d5f11838f 543 return HAL_ERROR;
mbed_official 235:685d5f11838f 544 }
mbed_official 235:685d5f11838f 545
mbed_official 235:685d5f11838f 546 /* Process Locked */
mbed_official 235:685d5f11838f 547 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 548
mbed_official 235:685d5f11838f 549 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 550 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 551
mbed_official 235:685d5f11838f 552 /* Configure DMA user callbacks */
mbed_official 235:685d5f11838f 553 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 235:685d5f11838f 554 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 235:685d5f11838f 555
mbed_official 235:685d5f11838f 556 /* Enable the DMA Stream */
mbed_official 235:685d5f11838f 557 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
mbed_official 235:685d5f11838f 558
mbed_official 235:685d5f11838f 559 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 560 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 561
mbed_official 235:685d5f11838f 562 /* Process unlocked */
mbed_official 235:685d5f11838f 563 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 564
mbed_official 235:685d5f11838f 565 return HAL_OK;
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 */
mbed_official 235:685d5f11838f 571
mbed_official 532:fe11edbda85c 572 /** @defgroup SRAM_Exported_Functions_Group3 Control functions
mbed_official 235:685d5f11838f 573 * @brief management functions
mbed_official 235:685d5f11838f 574 *
mbed_official 235:685d5f11838f 575 @verbatim
mbed_official 235:685d5f11838f 576 ==============================================================================
mbed_official 235:685d5f11838f 577 ##### SRAM Control functions #####
mbed_official 235:685d5f11838f 578 ==============================================================================
mbed_official 235:685d5f11838f 579 [..]
mbed_official 235:685d5f11838f 580 This subsection provides a set of functions allowing to control dynamically
mbed_official 235:685d5f11838f 581 the SRAM interface.
mbed_official 235:685d5f11838f 582
mbed_official 235:685d5f11838f 583 @endverbatim
mbed_official 235:685d5f11838f 584 * @{
mbed_official 235:685d5f11838f 585 */
mbed_official 235:685d5f11838f 586
mbed_official 235:685d5f11838f 587 /**
mbed_official 235:685d5f11838f 588 * @brief Enables dynamically SRAM write operation.
mbed_official 235:685d5f11838f 589 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 590 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 591 * @retval HAL status
mbed_official 235:685d5f11838f 592 */
mbed_official 235:685d5f11838f 593 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 594 {
mbed_official 235:685d5f11838f 595 /* Process Locked */
mbed_official 235:685d5f11838f 596 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 597
mbed_official 235:685d5f11838f 598 /* Enable write operation */
mbed_official 235:685d5f11838f 599 FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 600
mbed_official 235:685d5f11838f 601 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 602 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 235:685d5f11838f 603
mbed_official 235:685d5f11838f 604 /* Process unlocked */
mbed_official 235:685d5f11838f 605 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 606
mbed_official 235:685d5f11838f 607 return HAL_OK;
mbed_official 235:685d5f11838f 608 }
mbed_official 235:685d5f11838f 609
mbed_official 235:685d5f11838f 610 /**
mbed_official 235:685d5f11838f 611 * @brief Disables dynamically SRAM write operation.
mbed_official 235:685d5f11838f 612 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 613 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 614 * @retval HAL status
mbed_official 235:685d5f11838f 615 */
mbed_official 235:685d5f11838f 616 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 617 {
mbed_official 235:685d5f11838f 618 /* Process Locked */
mbed_official 235:685d5f11838f 619 __HAL_LOCK(hsram);
mbed_official 235:685d5f11838f 620
mbed_official 235:685d5f11838f 621 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 622 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 235:685d5f11838f 623
mbed_official 235:685d5f11838f 624 /* Disable write operation */
mbed_official 235:685d5f11838f 625 FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank);
mbed_official 235:685d5f11838f 626
mbed_official 235:685d5f11838f 627 /* Update the SRAM controller state */
mbed_official 235:685d5f11838f 628 hsram->State = HAL_SRAM_STATE_PROTECTED;
mbed_official 235:685d5f11838f 629
mbed_official 235:685d5f11838f 630 /* Process unlocked */
mbed_official 235:685d5f11838f 631 __HAL_UNLOCK(hsram);
mbed_official 235:685d5f11838f 632
mbed_official 235:685d5f11838f 633 return HAL_OK;
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 */
mbed_official 235:685d5f11838f 639
mbed_official 532:fe11edbda85c 640 /** @defgroup SRAM_Exported_Functions_Group4 State functions
mbed_official 235:685d5f11838f 641 * @brief Peripheral State functions
mbed_official 235:685d5f11838f 642 *
mbed_official 235:685d5f11838f 643 @verbatim
mbed_official 235:685d5f11838f 644 ==============================================================================
mbed_official 235:685d5f11838f 645 ##### SRAM State functions #####
mbed_official 235:685d5f11838f 646 ==============================================================================
mbed_official 235:685d5f11838f 647 [..]
mbed_official 235:685d5f11838f 648 This subsection permits to get in run-time the status of the SRAM controller
mbed_official 235:685d5f11838f 649 and the data flow.
mbed_official 235:685d5f11838f 650
mbed_official 235:685d5f11838f 651 @endverbatim
mbed_official 235:685d5f11838f 652 * @{
mbed_official 235:685d5f11838f 653 */
mbed_official 235:685d5f11838f 654
mbed_official 235:685d5f11838f 655 /**
mbed_official 235:685d5f11838f 656 * @brief Returns the SRAM controller state
mbed_official 235:685d5f11838f 657 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 235:685d5f11838f 658 * the configuration information for SRAM module.
mbed_official 235:685d5f11838f 659 * @retval HAL state
mbed_official 235:685d5f11838f 660 */
mbed_official 235:685d5f11838f 661 HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram)
mbed_official 235:685d5f11838f 662 {
mbed_official 235:685d5f11838f 663 return hsram->State;
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 */
mbed_official 532:fe11edbda85c 672 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx */
mbed_official 235:685d5f11838f 673 #endif /* HAL_SRAM_MODULE_ENABLED */
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
mbed_official 235:685d5f11838f 682 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/