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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sram.c@610:813dcc80987e, 2015-08-14 (annotated)

Committer:
mbed_official
Date:
Fri Aug 14 13:15:17 2015 +0100
Revision:
610:813dcc80987e
Parent:
573:ad23fe03a082 
Synchronized with git revision 6d84db41c6833e0b9b024741eb0616a5f62d5599



Full URL: https://github.com/mbedmicro/mbed/commit/6d84db41c6833e0b9b024741eb0616a5f62d5599/



DISCO_F746NG - Improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 573:ad23fe03a082 1 /**
mbed_official 573:ad23fe03a082 2 ******************************************************************************
mbed_official 573:ad23fe03a082 3 * @file stm32f7xx_hal_sram.c
mbed_official 573:ad23fe03a082 4 * @author MCD Application Team
mbed_official 610:813dcc80987e 5 * @version V1.0.1
mbed_official 610:813dcc80987e 6 * @date 25-June-2015
mbed_official 573:ad23fe03a082 7 * @brief SRAM HAL module driver.
mbed_official 573:ad23fe03a082 8 * This file provides a generic firmware to drive SRAM memories
mbed_official 573:ad23fe03a082 9 * mounted as external device.
mbed_official 573:ad23fe03a082 10 *
mbed_official 573:ad23fe03a082 11 @verbatim
mbed_official 573:ad23fe03a082 12 ==============================================================================
mbed_official 573:ad23fe03a082 13 ##### How to use this driver #####
mbed_official 573:ad23fe03a082 14 ==============================================================================
mbed_official 573:ad23fe03a082 15 [..]
mbed_official 573:ad23fe03a082 16 This driver is a generic layered driver which contains a set of APIs used to
mbed_official 573:ad23fe03a082 17 control SRAM memories. It uses the FMC layer functions to interface
mbed_official 573:ad23fe03a082 18 with SRAM devices.
mbed_official 573:ad23fe03a082 19 The following sequence should be followed to configure the FMC to interface
mbed_official 573:ad23fe03a082 20 with SRAM/PSRAM memories:
mbed_official 573:ad23fe03a082 21
mbed_official 573:ad23fe03a082 22 (#) Declare a SRAM_HandleTypeDef handle structure, for example:
mbed_official 573:ad23fe03a082 23 SRAM_HandleTypeDef hsram; and:
mbed_official 573:ad23fe03a082 24
mbed_official 573:ad23fe03a082 25 (++) Fill the SRAM_HandleTypeDef handle "Init" field with the allowed
mbed_official 573:ad23fe03a082 26 values of the structure member.
mbed_official 573:ad23fe03a082 27
mbed_official 573:ad23fe03a082 28 (++) Fill the SRAM_HandleTypeDef handle "Instance" field with a predefined
mbed_official 573:ad23fe03a082 29 base register instance for NOR or SRAM device
mbed_official 573:ad23fe03a082 30
mbed_official 573:ad23fe03a082 31 (++) Fill the SRAM_HandleTypeDef handle "Extended" field with a predefined
mbed_official 573:ad23fe03a082 32 base register instance for NOR or SRAM extended mode
mbed_official 573:ad23fe03a082 33
mbed_official 573:ad23fe03a082 34 (#) Declare two FMC_NORSRAM_TimingTypeDef structures, for both normal and extended
mbed_official 573:ad23fe03a082 35 mode timings; for example:
mbed_official 573:ad23fe03a082 36 FMC_NORSRAM_TimingTypeDef Timing and FMC_NORSRAM_TimingTypeDef ExTiming;
mbed_official 573:ad23fe03a082 37 and fill its fields with the allowed values of the structure member.
mbed_official 573:ad23fe03a082 38
mbed_official 573:ad23fe03a082 39 (#) Initialize the SRAM Controller by calling the function HAL_SRAM_Init(). This function
mbed_official 573:ad23fe03a082 40 performs the following sequence:
mbed_official 573:ad23fe03a082 41
mbed_official 573:ad23fe03a082 42 (##) MSP hardware layer configuration using the function HAL_SRAM_MspInit()
mbed_official 573:ad23fe03a082 43 (##) Control register configuration using the FMC NORSRAM interface function
mbed_official 573:ad23fe03a082 44 FMC_NORSRAM_Init()
mbed_official 573:ad23fe03a082 45 (##) Timing register configuration using the FMC NORSRAM interface function
mbed_official 573:ad23fe03a082 46 FMC_NORSRAM_Timing_Init()
mbed_official 573:ad23fe03a082 47 (##) Extended mode Timing register configuration using the FMC NORSRAM interface function
mbed_official 573:ad23fe03a082 48 FMC_NORSRAM_Extended_Timing_Init()
mbed_official 573:ad23fe03a082 49 (##) Enable the SRAM device using the macro __FMC_NORSRAM_ENABLE()
mbed_official 573:ad23fe03a082 50
mbed_official 573:ad23fe03a082 51 (#) At this stage you can perform read/write accesses from/to the memory connected
mbed_official 573:ad23fe03a082 52 to the NOR/SRAM Bank. You can perform either polling or DMA transfer using the
mbed_official 573:ad23fe03a082 53 following APIs:
mbed_official 573:ad23fe03a082 54 (++) HAL_SRAM_Read()/HAL_SRAM_Write() for polling read/write access
mbed_official 573:ad23fe03a082 55 (++) HAL_SRAM_Read_DMA()/HAL_SRAM_Write_DMA() for DMA read/write transfer
mbed_official 573:ad23fe03a082 56
mbed_official 573:ad23fe03a082 57 (#) You can also control the SRAM device by calling the control APIs HAL_SRAM_WriteOperation_Enable()/
mbed_official 573:ad23fe03a082 58 HAL_SRAM_WriteOperation_Disable() to respectively enable/disable the SRAM write operation
mbed_official 573:ad23fe03a082 59
mbed_official 573:ad23fe03a082 60 (#) You can continuously monitor the SRAM device HAL state by calling the function
mbed_official 573:ad23fe03a082 61 HAL_SRAM_GetState()
mbed_official 573:ad23fe03a082 62
mbed_official 573:ad23fe03a082 63 @endverbatim
mbed_official 573:ad23fe03a082 64 ******************************************************************************
mbed_official 573:ad23fe03a082 65 * @attention
mbed_official 573:ad23fe03a082 66 *
mbed_official 573:ad23fe03a082 67 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 573:ad23fe03a082 68 *
mbed_official 573:ad23fe03a082 69 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 573:ad23fe03a082 70 * are permitted provided that the following conditions are met:
mbed_official 573:ad23fe03a082 71 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 573:ad23fe03a082 72 * this list of conditions and the following disclaimer.
mbed_official 573:ad23fe03a082 73 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 573:ad23fe03a082 74 * this list of conditions and the following disclaimer in the documentation
mbed_official 573:ad23fe03a082 75 * and/or other materials provided with the distribution.
mbed_official 573:ad23fe03a082 76 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 573:ad23fe03a082 77 * may be used to endorse or promote products derived from this software
mbed_official 573:ad23fe03a082 78 * without specific prior written permission.
mbed_official 573:ad23fe03a082 79 *
mbed_official 573:ad23fe03a082 80 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 573:ad23fe03a082 81 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 573:ad23fe03a082 82 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 573:ad23fe03a082 83 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 573:ad23fe03a082 84 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 573:ad23fe03a082 85 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 573:ad23fe03a082 86 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 573:ad23fe03a082 87 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 573:ad23fe03a082 88 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 573:ad23fe03a082 89 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 573:ad23fe03a082 90 *
mbed_official 573:ad23fe03a082 91 ******************************************************************************
mbed_official 573:ad23fe03a082 92 */
mbed_official 573:ad23fe03a082 93
mbed_official 573:ad23fe03a082 94 /* Includes ------------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 95 #include "stm32f7xx_hal.h"
mbed_official 573:ad23fe03a082 96
mbed_official 573:ad23fe03a082 97 /** @addtogroup STM32F7xx_HAL_Driver
mbed_official 573:ad23fe03a082 98 * @{
mbed_official 573:ad23fe03a082 99 */
mbed_official 573:ad23fe03a082 100
mbed_official 573:ad23fe03a082 101 /** @defgroup SRAM SRAM
mbed_official 573:ad23fe03a082 102 * @brief SRAM driver modules
mbed_official 573:ad23fe03a082 103 * @{
mbed_official 573:ad23fe03a082 104 */
mbed_official 573:ad23fe03a082 105 #ifdef HAL_SRAM_MODULE_ENABLED
mbed_official 573:ad23fe03a082 106 /* Private typedef -----------------------------------------------------------*/
mbed_official 573:ad23fe03a082 107 /* Private define ------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 108 /* Private macro -------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 109 /* Private variables ---------------------------------------------------------*/
mbed_official 573:ad23fe03a082 110 /* Private function prototypes -----------------------------------------------*/
mbed_official 573:ad23fe03a082 111 /* Exported functions --------------------------------------------------------*/
mbed_official 573:ad23fe03a082 112
mbed_official 573:ad23fe03a082 113 /** @defgroup SRAM_Exported_Functions SRAM Exported Functions
mbed_official 573:ad23fe03a082 114 * @{
mbed_official 573:ad23fe03a082 115 */
mbed_official 573:ad23fe03a082 116
mbed_official 573:ad23fe03a082 117 /** @defgroup SRAM_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official 573:ad23fe03a082 118 * @brief Initialization and Configuration functions.
mbed_official 573:ad23fe03a082 119 *
mbed_official 573:ad23fe03a082 120 @verbatim
mbed_official 573:ad23fe03a082 121 ==============================================================================
mbed_official 573:ad23fe03a082 122 ##### SRAM Initialization and de_initialization functions #####
mbed_official 573:ad23fe03a082 123 ==============================================================================
mbed_official 573:ad23fe03a082 124 [..] This section provides functions allowing to initialize/de-initialize
mbed_official 573:ad23fe03a082 125 the SRAM memory
mbed_official 573:ad23fe03a082 126
mbed_official 573:ad23fe03a082 127 @endverbatim
mbed_official 573:ad23fe03a082 128 * @{
mbed_official 573:ad23fe03a082 129 */
mbed_official 573:ad23fe03a082 130
mbed_official 573:ad23fe03a082 131 /**
mbed_official 573:ad23fe03a082 132 * @brief Performs the SRAM device initialization sequence
mbed_official 573:ad23fe03a082 133 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 134 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 135 * @param Timing: Pointer to SRAM control timing structure
mbed_official 573:ad23fe03a082 136 * @param ExtTiming: Pointer to SRAM extended mode timing structure
mbed_official 573:ad23fe03a082 137 * @retval HAL status
mbed_official 573:ad23fe03a082 138 */
mbed_official 573:ad23fe03a082 139 HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming)
mbed_official 573:ad23fe03a082 140 {
mbed_official 573:ad23fe03a082 141 /* Check the SRAM handle parameter */
mbed_official 573:ad23fe03a082 142 if(hsram == NULL)
mbed_official 573:ad23fe03a082 143 {
mbed_official 573:ad23fe03a082 144 return HAL_ERROR;
mbed_official 573:ad23fe03a082 145 }
mbed_official 573:ad23fe03a082 146
mbed_official 573:ad23fe03a082 147 if(hsram->State == HAL_SRAM_STATE_RESET)
mbed_official 573:ad23fe03a082 148 {
mbed_official 573:ad23fe03a082 149 /* Allocate lock resource and initialize it */
mbed_official 573:ad23fe03a082 150 hsram->Lock = HAL_UNLOCKED;
mbed_official 573:ad23fe03a082 151 /* Initialize the low level hardware (MSP) */
mbed_official 573:ad23fe03a082 152 HAL_SRAM_MspInit(hsram);
mbed_official 573:ad23fe03a082 153 }
mbed_official 573:ad23fe03a082 154
mbed_official 573:ad23fe03a082 155 /* Initialize SRAM control Interface */
mbed_official 573:ad23fe03a082 156 FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));
mbed_official 573:ad23fe03a082 157
mbed_official 573:ad23fe03a082 158 /* Initialize SRAM timing Interface */
mbed_official 573:ad23fe03a082 159 FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
mbed_official 573:ad23fe03a082 160
mbed_official 573:ad23fe03a082 161 /* Initialize SRAM extended mode timing Interface */
mbed_official 573:ad23fe03a082 162 FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
mbed_official 573:ad23fe03a082 163
mbed_official 573:ad23fe03a082 164 /* Enable the NORSRAM device */
mbed_official 573:ad23fe03a082 165 __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
mbed_official 573:ad23fe03a082 166
mbed_official 573:ad23fe03a082 167 return HAL_OK;
mbed_official 573:ad23fe03a082 168 }
mbed_official 573:ad23fe03a082 169
mbed_official 573:ad23fe03a082 170 /**
mbed_official 573:ad23fe03a082 171 * @brief Performs the SRAM device De-initialization sequence.
mbed_official 573:ad23fe03a082 172 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 173 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 174 * @retval HAL status
mbed_official 573:ad23fe03a082 175 */
mbed_official 573:ad23fe03a082 176 HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 177 {
mbed_official 573:ad23fe03a082 178 /* De-Initialize the low level hardware (MSP) */
mbed_official 573:ad23fe03a082 179 HAL_SRAM_MspDeInit(hsram);
mbed_official 573:ad23fe03a082 180
mbed_official 573:ad23fe03a082 181 /* Configure the SRAM registers with their reset values */
mbed_official 573:ad23fe03a082 182 FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);
mbed_official 573:ad23fe03a082 183
mbed_official 573:ad23fe03a082 184 hsram->State = HAL_SRAM_STATE_RESET;
mbed_official 573:ad23fe03a082 185
mbed_official 573:ad23fe03a082 186 /* Release Lock */
mbed_official 573:ad23fe03a082 187 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 188
mbed_official 573:ad23fe03a082 189 return HAL_OK;
mbed_official 573:ad23fe03a082 190 }
mbed_official 573:ad23fe03a082 191
mbed_official 573:ad23fe03a082 192 /**
mbed_official 573:ad23fe03a082 193 * @brief SRAM MSP Init.
mbed_official 573:ad23fe03a082 194 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 195 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 196 * @retval None
mbed_official 573:ad23fe03a082 197 */
mbed_official 573:ad23fe03a082 198 __weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 199 {
mbed_official 573:ad23fe03a082 200 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 573:ad23fe03a082 201 the HAL_SRAM_MspInit could be implemented in the user file
mbed_official 573:ad23fe03a082 202 */
mbed_official 573:ad23fe03a082 203 }
mbed_official 573:ad23fe03a082 204
mbed_official 573:ad23fe03a082 205 /**
mbed_official 573:ad23fe03a082 206 * @brief SRAM MSP DeInit.
mbed_official 573:ad23fe03a082 207 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 208 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 209 * @retval None
mbed_official 573:ad23fe03a082 210 */
mbed_official 573:ad23fe03a082 211 __weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 212 {
mbed_official 573:ad23fe03a082 213 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 573:ad23fe03a082 214 the HAL_SRAM_MspDeInit could be implemented in the user file
mbed_official 573:ad23fe03a082 215 */
mbed_official 573:ad23fe03a082 216 }
mbed_official 573:ad23fe03a082 217
mbed_official 573:ad23fe03a082 218 /**
mbed_official 573:ad23fe03a082 219 * @brief DMA transfer complete callback.
mbed_official 573:ad23fe03a082 220 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 221 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 222 * @retval None
mbed_official 573:ad23fe03a082 223 */
mbed_official 573:ad23fe03a082 224 __weak void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
mbed_official 573:ad23fe03a082 225 {
mbed_official 573:ad23fe03a082 226 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 573:ad23fe03a082 227 the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
mbed_official 573:ad23fe03a082 228 */
mbed_official 573:ad23fe03a082 229 }
mbed_official 573:ad23fe03a082 230
mbed_official 573:ad23fe03a082 231 /**
mbed_official 573:ad23fe03a082 232 * @brief DMA transfer complete error callback.
mbed_official 573:ad23fe03a082 233 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 234 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 235 * @retval None
mbed_official 573:ad23fe03a082 236 */
mbed_official 573:ad23fe03a082 237 __weak void HAL_SRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
mbed_official 573:ad23fe03a082 238 {
mbed_official 573:ad23fe03a082 239 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 573:ad23fe03a082 240 the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
mbed_official 573:ad23fe03a082 241 */
mbed_official 573:ad23fe03a082 242 }
mbed_official 573:ad23fe03a082 243
mbed_official 573:ad23fe03a082 244 /**
mbed_official 573:ad23fe03a082 245 * @}
mbed_official 573:ad23fe03a082 246 */
mbed_official 573:ad23fe03a082 247
mbed_official 573:ad23fe03a082 248 /** @defgroup SRAM_Exported_Functions_Group2 Input Output and memory control functions
mbed_official 573:ad23fe03a082 249 * @brief Input Output and memory control functions
mbed_official 573:ad23fe03a082 250 *
mbed_official 573:ad23fe03a082 251 @verbatim
mbed_official 573:ad23fe03a082 252 ==============================================================================
mbed_official 573:ad23fe03a082 253 ##### SRAM Input and Output functions #####
mbed_official 573:ad23fe03a082 254 ==============================================================================
mbed_official 573:ad23fe03a082 255 [..]
mbed_official 573:ad23fe03a082 256 This section provides functions allowing to use and control the SRAM memory
mbed_official 573:ad23fe03a082 257
mbed_official 573:ad23fe03a082 258 @endverbatim
mbed_official 573:ad23fe03a082 259 * @{
mbed_official 573:ad23fe03a082 260 */
mbed_official 573:ad23fe03a082 261
mbed_official 573:ad23fe03a082 262 /**
mbed_official 573:ad23fe03a082 263 * @brief Reads 8-bit buffer from SRAM memory.
mbed_official 573:ad23fe03a082 264 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 265 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 266 * @param pAddress: Pointer to read start address
mbed_official 573:ad23fe03a082 267 * @param pDstBuffer: Pointer to destination buffer
mbed_official 573:ad23fe03a082 268 * @param BufferSize: Size of the buffer to read from memory
mbed_official 573:ad23fe03a082 269 * @retval HAL status
mbed_official 573:ad23fe03a082 270 */
mbed_official 573:ad23fe03a082 271 HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 272 {
mbed_official 573:ad23fe03a082 273 __IO uint8_t * psramaddress = (uint8_t *)pAddress;
mbed_official 573:ad23fe03a082 274
mbed_official 573:ad23fe03a082 275 /* Process Locked */
mbed_official 573:ad23fe03a082 276 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 277
mbed_official 573:ad23fe03a082 278 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 279 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 280
mbed_official 573:ad23fe03a082 281 /* Read data from memory */
mbed_official 573:ad23fe03a082 282 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 283 {
mbed_official 573:ad23fe03a082 284 *pDstBuffer = *(__IO uint8_t *)psramaddress;
mbed_official 573:ad23fe03a082 285 pDstBuffer++;
mbed_official 573:ad23fe03a082 286 psramaddress++;
mbed_official 573:ad23fe03a082 287 }
mbed_official 573:ad23fe03a082 288
mbed_official 573:ad23fe03a082 289 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 290 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 291
mbed_official 573:ad23fe03a082 292 /* Process unlocked */
mbed_official 573:ad23fe03a082 293 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 294
mbed_official 573:ad23fe03a082 295 return HAL_OK;
mbed_official 573:ad23fe03a082 296 }
mbed_official 573:ad23fe03a082 297
mbed_official 573:ad23fe03a082 298 /**
mbed_official 573:ad23fe03a082 299 * @brief Writes 8-bit buffer to SRAM memory.
mbed_official 573:ad23fe03a082 300 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 301 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 302 * @param pAddress: Pointer to write start address
mbed_official 573:ad23fe03a082 303 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 573:ad23fe03a082 304 * @param BufferSize: Size of the buffer to write to memory
mbed_official 573:ad23fe03a082 305 * @retval HAL status
mbed_official 573:ad23fe03a082 306 */
mbed_official 573:ad23fe03a082 307 HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 308 {
mbed_official 573:ad23fe03a082 309 __IO uint8_t * psramaddress = (uint8_t *)pAddress;
mbed_official 573:ad23fe03a082 310
mbed_official 573:ad23fe03a082 311 /* Check the SRAM controller state */
mbed_official 573:ad23fe03a082 312 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 573:ad23fe03a082 313 {
mbed_official 573:ad23fe03a082 314 return HAL_ERROR;
mbed_official 573:ad23fe03a082 315 }
mbed_official 573:ad23fe03a082 316
mbed_official 573:ad23fe03a082 317 /* Process Locked */
mbed_official 573:ad23fe03a082 318 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 319
mbed_official 573:ad23fe03a082 320 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 321 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 322
mbed_official 573:ad23fe03a082 323 /* Write data to memory */
mbed_official 573:ad23fe03a082 324 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 325 {
mbed_official 573:ad23fe03a082 326 *(__IO uint8_t *)psramaddress = *pSrcBuffer;
mbed_official 573:ad23fe03a082 327 pSrcBuffer++;
mbed_official 573:ad23fe03a082 328 psramaddress++;
mbed_official 573:ad23fe03a082 329 }
mbed_official 573:ad23fe03a082 330
mbed_official 573:ad23fe03a082 331 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 332 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 333
mbed_official 573:ad23fe03a082 334 /* Process unlocked */
mbed_official 573:ad23fe03a082 335 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 336
mbed_official 573:ad23fe03a082 337 return HAL_OK;
mbed_official 573:ad23fe03a082 338 }
mbed_official 573:ad23fe03a082 339
mbed_official 573:ad23fe03a082 340 /**
mbed_official 573:ad23fe03a082 341 * @brief Reads 16-bit buffer from SRAM memory.
mbed_official 573:ad23fe03a082 342 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 343 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 344 * @param pAddress: Pointer to read start address
mbed_official 573:ad23fe03a082 345 * @param pDstBuffer: Pointer to destination buffer
mbed_official 573:ad23fe03a082 346 * @param BufferSize: Size of the buffer to read from memory
mbed_official 573:ad23fe03a082 347 * @retval HAL status
mbed_official 573:ad23fe03a082 348 */
mbed_official 573:ad23fe03a082 349 HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 350 {
mbed_official 573:ad23fe03a082 351 __IO uint16_t * psramaddress = (uint16_t *)pAddress;
mbed_official 573:ad23fe03a082 352
mbed_official 573:ad23fe03a082 353 /* Process Locked */
mbed_official 573:ad23fe03a082 354 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 355
mbed_official 573:ad23fe03a082 356 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 357 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 358
mbed_official 573:ad23fe03a082 359 /* Read data from memory */
mbed_official 573:ad23fe03a082 360 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 361 {
mbed_official 573:ad23fe03a082 362 *pDstBuffer = *(__IO uint16_t *)psramaddress;
mbed_official 573:ad23fe03a082 363 pDstBuffer++;
mbed_official 573:ad23fe03a082 364 psramaddress++;
mbed_official 573:ad23fe03a082 365 }
mbed_official 573:ad23fe03a082 366
mbed_official 573:ad23fe03a082 367 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 368 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 369
mbed_official 573:ad23fe03a082 370 /* Process unlocked */
mbed_official 573:ad23fe03a082 371 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 372
mbed_official 573:ad23fe03a082 373 return HAL_OK;
mbed_official 573:ad23fe03a082 374 }
mbed_official 573:ad23fe03a082 375
mbed_official 573:ad23fe03a082 376 /**
mbed_official 573:ad23fe03a082 377 * @brief Writes 16-bit buffer to SRAM memory.
mbed_official 573:ad23fe03a082 378 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 379 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 380 * @param pAddress: Pointer to write start address
mbed_official 573:ad23fe03a082 381 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 573:ad23fe03a082 382 * @param BufferSize: Size of the buffer to write to memory
mbed_official 573:ad23fe03a082 383 * @retval HAL status
mbed_official 573:ad23fe03a082 384 */
mbed_official 573:ad23fe03a082 385 HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 386 {
mbed_official 573:ad23fe03a082 387 __IO uint16_t * psramaddress = (uint16_t *)pAddress;
mbed_official 573:ad23fe03a082 388
mbed_official 573:ad23fe03a082 389 /* Check the SRAM controller state */
mbed_official 573:ad23fe03a082 390 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 573:ad23fe03a082 391 {
mbed_official 573:ad23fe03a082 392 return HAL_ERROR;
mbed_official 573:ad23fe03a082 393 }
mbed_official 573:ad23fe03a082 394
mbed_official 573:ad23fe03a082 395 /* Process Locked */
mbed_official 573:ad23fe03a082 396 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 397
mbed_official 573:ad23fe03a082 398 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 399 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 400
mbed_official 573:ad23fe03a082 401 /* Write data to memory */
mbed_official 573:ad23fe03a082 402 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 403 {
mbed_official 573:ad23fe03a082 404 *(__IO uint16_t *)psramaddress = *pSrcBuffer;
mbed_official 573:ad23fe03a082 405 pSrcBuffer++;
mbed_official 573:ad23fe03a082 406 psramaddress++;
mbed_official 573:ad23fe03a082 407 }
mbed_official 573:ad23fe03a082 408
mbed_official 573:ad23fe03a082 409 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 410 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 411
mbed_official 573:ad23fe03a082 412 /* Process unlocked */
mbed_official 573:ad23fe03a082 413 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 414
mbed_official 573:ad23fe03a082 415 return HAL_OK;
mbed_official 573:ad23fe03a082 416 }
mbed_official 573:ad23fe03a082 417
mbed_official 573:ad23fe03a082 418 /**
mbed_official 573:ad23fe03a082 419 * @brief Reads 32-bit buffer from SRAM memory.
mbed_official 573:ad23fe03a082 420 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 421 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 422 * @param pAddress: Pointer to read start address
mbed_official 573:ad23fe03a082 423 * @param pDstBuffer: Pointer to destination buffer
mbed_official 573:ad23fe03a082 424 * @param BufferSize: Size of the buffer to read from memory
mbed_official 573:ad23fe03a082 425 * @retval HAL status
mbed_official 573:ad23fe03a082 426 */
mbed_official 573:ad23fe03a082 427 HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 428 {
mbed_official 573:ad23fe03a082 429 /* Process Locked */
mbed_official 573:ad23fe03a082 430 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 431
mbed_official 573:ad23fe03a082 432 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 433 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 434
mbed_official 573:ad23fe03a082 435 /* Read data from memory */
mbed_official 573:ad23fe03a082 436 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 437 {
mbed_official 573:ad23fe03a082 438 *pDstBuffer = *(__IO uint32_t *)pAddress;
mbed_official 573:ad23fe03a082 439 pDstBuffer++;
mbed_official 573:ad23fe03a082 440 pAddress++;
mbed_official 573:ad23fe03a082 441 }
mbed_official 573:ad23fe03a082 442
mbed_official 573:ad23fe03a082 443 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 444 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 445
mbed_official 573:ad23fe03a082 446 /* Process unlocked */
mbed_official 573:ad23fe03a082 447 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 448
mbed_official 573:ad23fe03a082 449 return HAL_OK;
mbed_official 573:ad23fe03a082 450 }
mbed_official 573:ad23fe03a082 451
mbed_official 573:ad23fe03a082 452 /**
mbed_official 573:ad23fe03a082 453 * @brief Writes 32-bit buffer to SRAM memory.
mbed_official 573:ad23fe03a082 454 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 455 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 456 * @param pAddress: Pointer to write start address
mbed_official 573:ad23fe03a082 457 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 573:ad23fe03a082 458 * @param BufferSize: Size of the buffer to write to memory
mbed_official 573:ad23fe03a082 459 * @retval HAL status
mbed_official 573:ad23fe03a082 460 */
mbed_official 573:ad23fe03a082 461 HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 462 {
mbed_official 573:ad23fe03a082 463 /* Check the SRAM controller state */
mbed_official 573:ad23fe03a082 464 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 573:ad23fe03a082 465 {
mbed_official 573:ad23fe03a082 466 return HAL_ERROR;
mbed_official 573:ad23fe03a082 467 }
mbed_official 573:ad23fe03a082 468
mbed_official 573:ad23fe03a082 469 /* Process Locked */
mbed_official 573:ad23fe03a082 470 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 471
mbed_official 573:ad23fe03a082 472 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 473 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 474
mbed_official 573:ad23fe03a082 475 /* Write data to memory */
mbed_official 573:ad23fe03a082 476 for(; BufferSize != 0; BufferSize--)
mbed_official 573:ad23fe03a082 477 {
mbed_official 573:ad23fe03a082 478 *(__IO uint32_t *)pAddress = *pSrcBuffer;
mbed_official 573:ad23fe03a082 479 pSrcBuffer++;
mbed_official 573:ad23fe03a082 480 pAddress++;
mbed_official 573:ad23fe03a082 481 }
mbed_official 573:ad23fe03a082 482
mbed_official 573:ad23fe03a082 483 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 484 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 485
mbed_official 573:ad23fe03a082 486 /* Process unlocked */
mbed_official 573:ad23fe03a082 487 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 488
mbed_official 573:ad23fe03a082 489 return HAL_OK;
mbed_official 573:ad23fe03a082 490 }
mbed_official 573:ad23fe03a082 491
mbed_official 573:ad23fe03a082 492 /**
mbed_official 573:ad23fe03a082 493 * @brief Reads a Words data from the SRAM memory using DMA transfer.
mbed_official 573:ad23fe03a082 494 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 495 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 496 * @param pAddress: Pointer to read start address
mbed_official 573:ad23fe03a082 497 * @param pDstBuffer: Pointer to destination buffer
mbed_official 573:ad23fe03a082 498 * @param BufferSize: Size of the buffer to read from memory
mbed_official 573:ad23fe03a082 499 * @retval HAL status
mbed_official 573:ad23fe03a082 500 */
mbed_official 573:ad23fe03a082 501 HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 502 {
mbed_official 573:ad23fe03a082 503 /* Process Locked */
mbed_official 573:ad23fe03a082 504 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 505
mbed_official 573:ad23fe03a082 506 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 507 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 508
mbed_official 573:ad23fe03a082 509 /* Configure DMA user callbacks */
mbed_official 573:ad23fe03a082 510 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 573:ad23fe03a082 511 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 573:ad23fe03a082 512
mbed_official 573:ad23fe03a082 513 /* Enable the DMA Stream */
mbed_official 573:ad23fe03a082 514 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
mbed_official 573:ad23fe03a082 515
mbed_official 573:ad23fe03a082 516 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 517 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 518
mbed_official 573:ad23fe03a082 519 /* Process unlocked */
mbed_official 573:ad23fe03a082 520 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 521
mbed_official 573:ad23fe03a082 522 return HAL_OK;
mbed_official 573:ad23fe03a082 523 }
mbed_official 573:ad23fe03a082 524
mbed_official 573:ad23fe03a082 525 /**
mbed_official 573:ad23fe03a082 526 * @brief Writes a Words data buffer to SRAM memory using DMA transfer.
mbed_official 573:ad23fe03a082 527 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 528 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 529 * @param pAddress: Pointer to write start address
mbed_official 573:ad23fe03a082 530 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 573:ad23fe03a082 531 * @param BufferSize: Size of the buffer to write to memory
mbed_official 573:ad23fe03a082 532 * @retval HAL status
mbed_official 573:ad23fe03a082 533 */
mbed_official 573:ad23fe03a082 534 HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 573:ad23fe03a082 535 {
mbed_official 573:ad23fe03a082 536 /* Check the SRAM controller state */
mbed_official 573:ad23fe03a082 537 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 573:ad23fe03a082 538 {
mbed_official 573:ad23fe03a082 539 return HAL_ERROR;
mbed_official 573:ad23fe03a082 540 }
mbed_official 573:ad23fe03a082 541
mbed_official 573:ad23fe03a082 542 /* Process Locked */
mbed_official 573:ad23fe03a082 543 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 544
mbed_official 573:ad23fe03a082 545 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 546 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 547
mbed_official 573:ad23fe03a082 548 /* Configure DMA user callbacks */
mbed_official 573:ad23fe03a082 549 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 573:ad23fe03a082 550 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 573:ad23fe03a082 551
mbed_official 573:ad23fe03a082 552 /* Enable the DMA Stream */
mbed_official 573:ad23fe03a082 553 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
mbed_official 573:ad23fe03a082 554
mbed_official 573:ad23fe03a082 555 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 556 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 557
mbed_official 573:ad23fe03a082 558 /* Process unlocked */
mbed_official 573:ad23fe03a082 559 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 560
mbed_official 573:ad23fe03a082 561 return HAL_OK;
mbed_official 573:ad23fe03a082 562 }
mbed_official 573:ad23fe03a082 563
mbed_official 573:ad23fe03a082 564 /**
mbed_official 573:ad23fe03a082 565 * @}
mbed_official 573:ad23fe03a082 566 */
mbed_official 573:ad23fe03a082 567
mbed_official 573:ad23fe03a082 568 /** @defgroup SRAM_Exported_Functions_Group3 Control functions
mbed_official 573:ad23fe03a082 569 * @brief Control functions
mbed_official 573:ad23fe03a082 570 *
mbed_official 573:ad23fe03a082 571 @verbatim
mbed_official 573:ad23fe03a082 572 ==============================================================================
mbed_official 573:ad23fe03a082 573 ##### SRAM Control functions #####
mbed_official 573:ad23fe03a082 574 ==============================================================================
mbed_official 573:ad23fe03a082 575 [..]
mbed_official 573:ad23fe03a082 576 This subsection provides a set of functions allowing to control dynamically
mbed_official 573:ad23fe03a082 577 the SRAM interface.
mbed_official 573:ad23fe03a082 578
mbed_official 573:ad23fe03a082 579 @endverbatim
mbed_official 573:ad23fe03a082 580 * @{
mbed_official 573:ad23fe03a082 581 */
mbed_official 573:ad23fe03a082 582
mbed_official 573:ad23fe03a082 583 /**
mbed_official 573:ad23fe03a082 584 * @brief Enables dynamically SRAM write operation.
mbed_official 573:ad23fe03a082 585 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 586 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 587 * @retval HAL status
mbed_official 573:ad23fe03a082 588 */
mbed_official 573:ad23fe03a082 589 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 590 {
mbed_official 573:ad23fe03a082 591 /* Process Locked */
mbed_official 573:ad23fe03a082 592 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 593
mbed_official 573:ad23fe03a082 594 /* Enable write operation */
mbed_official 573:ad23fe03a082 595 FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank);
mbed_official 573:ad23fe03a082 596
mbed_official 573:ad23fe03a082 597 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 598 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 573:ad23fe03a082 599
mbed_official 573:ad23fe03a082 600 /* Process unlocked */
mbed_official 573:ad23fe03a082 601 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 602
mbed_official 573:ad23fe03a082 603 return HAL_OK;
mbed_official 573:ad23fe03a082 604 }
mbed_official 573:ad23fe03a082 605
mbed_official 573:ad23fe03a082 606 /**
mbed_official 573:ad23fe03a082 607 * @brief Disables dynamically SRAM write operation.
mbed_official 573:ad23fe03a082 608 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 609 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 610 * @retval HAL status
mbed_official 573:ad23fe03a082 611 */
mbed_official 573:ad23fe03a082 612 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 613 {
mbed_official 573:ad23fe03a082 614 /* Process Locked */
mbed_official 573:ad23fe03a082 615 __HAL_LOCK(hsram);
mbed_official 573:ad23fe03a082 616
mbed_official 573:ad23fe03a082 617 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 618 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 573:ad23fe03a082 619
mbed_official 573:ad23fe03a082 620 /* Disable write operation */
mbed_official 573:ad23fe03a082 621 FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank);
mbed_official 573:ad23fe03a082 622
mbed_official 573:ad23fe03a082 623 /* Update the SRAM controller state */
mbed_official 573:ad23fe03a082 624 hsram->State = HAL_SRAM_STATE_PROTECTED;
mbed_official 573:ad23fe03a082 625
mbed_official 573:ad23fe03a082 626 /* Process unlocked */
mbed_official 573:ad23fe03a082 627 __HAL_UNLOCK(hsram);
mbed_official 573:ad23fe03a082 628
mbed_official 573:ad23fe03a082 629 return HAL_OK;
mbed_official 573:ad23fe03a082 630 }
mbed_official 573:ad23fe03a082 631
mbed_official 573:ad23fe03a082 632 /**
mbed_official 573:ad23fe03a082 633 * @}
mbed_official 573:ad23fe03a082 634 */
mbed_official 573:ad23fe03a082 635
mbed_official 573:ad23fe03a082 636 /** @defgroup SRAM_Exported_Functions_Group4 Peripheral State functions
mbed_official 573:ad23fe03a082 637 * @brief Peripheral State functions
mbed_official 573:ad23fe03a082 638 *
mbed_official 573:ad23fe03a082 639 @verbatim
mbed_official 573:ad23fe03a082 640 ==============================================================================
mbed_official 573:ad23fe03a082 641 ##### SRAM State functions #####
mbed_official 573:ad23fe03a082 642 ==============================================================================
mbed_official 573:ad23fe03a082 643 [..]
mbed_official 573:ad23fe03a082 644 This subsection permits to get in run-time the status of the SRAM controller
mbed_official 573:ad23fe03a082 645 and the data flow.
mbed_official 573:ad23fe03a082 646
mbed_official 573:ad23fe03a082 647 @endverbatim
mbed_official 573:ad23fe03a082 648 * @{
mbed_official 573:ad23fe03a082 649 */
mbed_official 573:ad23fe03a082 650
mbed_official 573:ad23fe03a082 651 /**
mbed_official 573:ad23fe03a082 652 * @brief Returns the SRAM controller state
mbed_official 573:ad23fe03a082 653 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 654 * the configuration information for SRAM module.
mbed_official 573:ad23fe03a082 655 * @retval HAL state
mbed_official 573:ad23fe03a082 656 */
mbed_official 573:ad23fe03a082 657 HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram)
mbed_official 573:ad23fe03a082 658 {
mbed_official 573:ad23fe03a082 659 return hsram->State;
mbed_official 573:ad23fe03a082 660 }
mbed_official 573:ad23fe03a082 661
mbed_official 573:ad23fe03a082 662 /**
mbed_official 573:ad23fe03a082 663 * @}
mbed_official 573:ad23fe03a082 664 */
mbed_official 573:ad23fe03a082 665
mbed_official 573:ad23fe03a082 666 /**
mbed_official 573:ad23fe03a082 667 * @}
mbed_official 573:ad23fe03a082 668 */
mbed_official 573:ad23fe03a082 669 #endif /* HAL_SRAM_MODULE_ENABLED */
mbed_official 573:ad23fe03a082 670 /**
mbed_official 573:ad23fe03a082 671 * @}
mbed_official 573:ad23fe03a082 672 */
mbed_official 573:ad23fe03a082 673
mbed_official 573:ad23fe03a082 674 /**
mbed_official 573:ad23fe03a082 675 * @}
mbed_official 573:ad23fe03a082 676 */
mbed_official 573:ad23fe03a082 677
mbed_official 573:ad23fe03a082 678 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/