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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_sram.c@634:ac7d6880524d, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 20:15:09 2015 +0100
Revision:
634:ac7d6880524d
Parent:
632:7687fb9c4f91 
Synchronized with git revision 9b7d23d47153c298a6d24de9a415202705889d11



Full URL: https://github.com/mbedmicro/mbed/commit/9b7d23d47153c298a6d24de9a415202705889d11/



Revert "[NUCLEO_F303K8] add support of the STM32F303K8"

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 330:c80ac197fa6a 1 /**
mbed_official 330:c80ac197fa6a 2 ******************************************************************************
mbed_official 330:c80ac197fa6a 3 * @file stm32f3xx_hal_sram.c
mbed_official 330:c80ac197fa6a 4 * @author MCD Application Team
mbed_official 634:ac7d6880524d 5 * @version V1.1.0
mbed_official 634:ac7d6880524d 6 * @date 12-Sept-2014
mbed_official 330:c80ac197fa6a 7 * @brief SRAM HAL module driver.
mbed_official 330:c80ac197fa6a 8 * This file provides a generic firmware to drive SRAM memories
mbed_official 330:c80ac197fa6a 9 * mounted as external device.
mbed_official 330:c80ac197fa6a 10 *
mbed_official 330:c80ac197fa6a 11 @verbatim
mbed_official 330:c80ac197fa6a 12 ==============================================================================
mbed_official 330:c80ac197fa6a 13 ##### How to use this driver #####
mbed_official 330:c80ac197fa6a 14 ==============================================================================
mbed_official 330:c80ac197fa6a 15 [..]
mbed_official 330:c80ac197fa6a 16 This driver is a generic layered driver which contains a set of APIs used to
mbed_official 330:c80ac197fa6a 17 control SRAM memories. It uses the FMC layer functions to interface
mbed_official 330:c80ac197fa6a 18 with SRAM devices.
mbed_official 330:c80ac197fa6a 19 The following sequence should be followed to configure the FMC/FSMC to interface
mbed_official 330:c80ac197fa6a 20 with SRAM/PSRAM memories:
mbed_official 330:c80ac197fa6a 21
mbed_official 330:c80ac197fa6a 22 (#) Declare a SRAM_HandleTypeDef handle structure, for example:
mbed_official 330:c80ac197fa6a 23 SRAM_HandleTypeDef hsram; and:
mbed_official 330:c80ac197fa6a 24
mbed_official 330:c80ac197fa6a 25 (++) Fill the SRAM_HandleTypeDef handle "Init" field with the allowed
mbed_official 330:c80ac197fa6a 26 values of the structure member.
mbed_official 330:c80ac197fa6a 27
mbed_official 330:c80ac197fa6a 28 (++) Fill the SRAM_HandleTypeDef handle "Instance" field with a predefined
mbed_official 330:c80ac197fa6a 29 base register instance for NOR or SRAM device
mbed_official 330:c80ac197fa6a 30
mbed_official 330:c80ac197fa6a 31 (++) Fill the SRAM_HandleTypeDef handle "Extended" field with a predefined
mbed_official 330:c80ac197fa6a 32 base register instance for NOR or SRAM extended mode
mbed_official 330:c80ac197fa6a 33
mbed_official 330:c80ac197fa6a 34 (#) Declare two FMC_NORSRAM_TimingTypeDef structures, for both normal and extended
mbed_official 330:c80ac197fa6a 35 mode timings; for example:
mbed_official 330:c80ac197fa6a 36 FMC_NORSRAM_TimingTypeDef Timing and FMC_NORSRAM_TimingTypeDef ExTiming;
mbed_official 330:c80ac197fa6a 37 and fill its fields with the allowed values of the structure member.
mbed_official 330:c80ac197fa6a 38
mbed_official 330:c80ac197fa6a 39 (#) Initialize the SRAM Controller by calling the function HAL_SRAM_Init(). This function
mbed_official 330:c80ac197fa6a 40 performs the following sequence:
mbed_official 330:c80ac197fa6a 41
mbed_official 330:c80ac197fa6a 42 (##) MSP hardware layer configuration using the function HAL_SRAM_MspInit()
mbed_official 330:c80ac197fa6a 43 (##) Control register configuration using the FMC NORSRAM interface function
mbed_official 330:c80ac197fa6a 44 FMC_NORSRAM_Init()
mbed_official 330:c80ac197fa6a 45 (##) Timing register configuration using the FMC NORSRAM interface function
mbed_official 330:c80ac197fa6a 46 FMC_NORSRAM_Timing_Init()
mbed_official 330:c80ac197fa6a 47 (##) Extended mode Timing register configuration using the FMC NORSRAM interface function
mbed_official 330:c80ac197fa6a 48 FMC_NORSRAM_Extended_Timing_Init()
mbed_official 330:c80ac197fa6a 49 (##) Enable the SRAM device using the macro __FMC_NORSRAM_ENABLE()
mbed_official 330:c80ac197fa6a 50
mbed_official 330:c80ac197fa6a 51 (#) At this stage you can perform read/write accesses from/to the memory connected
mbed_official 330:c80ac197fa6a 52 to the NOR/SRAM Bank. You can perform either polling or DMA transfer using the
mbed_official 330:c80ac197fa6a 53 following APIs:
mbed_official 330:c80ac197fa6a 54 (++) HAL_SRAM_Read()/HAL_SRAM_Write() for polling read/write access
mbed_official 330:c80ac197fa6a 55 (++) HAL_SRAM_Read_DMA()/HAL_SRAM_Write_DMA() for DMA read/write transfer
mbed_official 330:c80ac197fa6a 56
mbed_official 330:c80ac197fa6a 57 (#) You can also control the SRAM device by calling the control APIs HAL_SRAM_WriteOperation_Enable()/
mbed_official 330:c80ac197fa6a 58 HAL_SRAM_WriteOperation_Disable() to respectively enable/disable the SRAM write operation
mbed_official 330:c80ac197fa6a 59
mbed_official 330:c80ac197fa6a 60 (#) You can continuously monitor the SRAM device HAL state by calling the function
mbed_official 330:c80ac197fa6a 61 HAL_SRAM_GetState()
mbed_official 330:c80ac197fa6a 62
mbed_official 330:c80ac197fa6a 63 @endverbatim
mbed_official 330:c80ac197fa6a 64 ******************************************************************************
mbed_official 330:c80ac197fa6a 65 * @attention
mbed_official 330:c80ac197fa6a 66 *
mbed_official 634:ac7d6880524d 67 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 330:c80ac197fa6a 68 *
mbed_official 330:c80ac197fa6a 69 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 330:c80ac197fa6a 70 * are permitted provided that the following conditions are met:
mbed_official 330:c80ac197fa6a 71 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 330:c80ac197fa6a 72 * this list of conditions and the following disclaimer.
mbed_official 330:c80ac197fa6a 73 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 330:c80ac197fa6a 74 * this list of conditions and the following disclaimer in the documentation
mbed_official 330:c80ac197fa6a 75 * and/or other materials provided with the distribution.
mbed_official 330:c80ac197fa6a 76 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 330:c80ac197fa6a 77 * may be used to endorse or promote products derived from this software
mbed_official 330:c80ac197fa6a 78 * without specific prior written permission.
mbed_official 330:c80ac197fa6a 79 *
mbed_official 330:c80ac197fa6a 80 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 330:c80ac197fa6a 81 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 330:c80ac197fa6a 82 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 330:c80ac197fa6a 83 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 330:c80ac197fa6a 84 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 330:c80ac197fa6a 85 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 330:c80ac197fa6a 86 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 330:c80ac197fa6a 87 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 330:c80ac197fa6a 88 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 330:c80ac197fa6a 89 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 330:c80ac197fa6a 90 *
mbed_official 330:c80ac197fa6a 91 ******************************************************************************
mbed_official 330:c80ac197fa6a 92 */
mbed_official 330:c80ac197fa6a 93
mbed_official 330:c80ac197fa6a 94 /* Includes ------------------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 95 #include "stm32f3xx_hal.h"
mbed_official 330:c80ac197fa6a 96
mbed_official 330:c80ac197fa6a 97 /** @addtogroup STM32F3xx_HAL_Driver
mbed_official 330:c80ac197fa6a 98 * @{
mbed_official 330:c80ac197fa6a 99 */
mbed_official 330:c80ac197fa6a 100
mbed_official 330:c80ac197fa6a 101 /** @defgroup SRAM SRAM HAL module driver.
mbed_official 330:c80ac197fa6a 102 * @brief SRAM HAL module driver.
mbed_official 330:c80ac197fa6a 103 * @{
mbed_official 330:c80ac197fa6a 104 */
mbed_official 330:c80ac197fa6a 105 #ifdef HAL_SRAM_MODULE_ENABLED
mbed_official 330:c80ac197fa6a 106
mbed_official 330:c80ac197fa6a 107 #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx)
mbed_official 330:c80ac197fa6a 108
mbed_official 330:c80ac197fa6a 109 /* Private typedef -----------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 110 /* Private define ------------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 111 /* Private macro -------------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 112 /* Private variables ---------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 113 /* Private function prototypes -----------------------------------------------*/
mbed_official 330:c80ac197fa6a 114 /* Exported functions ---------------------------------------------------------*/
mbed_official 330:c80ac197fa6a 115
mbed_official 330:c80ac197fa6a 116 /** @defgroup SRAM_Exported_Functions SRAM Exported Functions
mbed_official 330:c80ac197fa6a 117 * @{
mbed_official 330:c80ac197fa6a 118 */
mbed_official 330:c80ac197fa6a 119
mbed_official 330:c80ac197fa6a 120 /** @defgroup SRAM_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official 330:c80ac197fa6a 121 * @brief Initialization and Configuration functions.
mbed_official 330:c80ac197fa6a 122 *
mbed_official 330:c80ac197fa6a 123 @verbatim
mbed_official 330:c80ac197fa6a 124 ==============================================================================
mbed_official 330:c80ac197fa6a 125 ##### SRAM Initialization and de_initialization functions #####
mbed_official 330:c80ac197fa6a 126 ==============================================================================
mbed_official 330:c80ac197fa6a 127 [..] This section provides functions allowing to initialize/de-initialize
mbed_official 330:c80ac197fa6a 128 the SRAM memory
mbed_official 330:c80ac197fa6a 129
mbed_official 330:c80ac197fa6a 130 @endverbatim
mbed_official 330:c80ac197fa6a 131 * @{
mbed_official 330:c80ac197fa6a 132 */
mbed_official 330:c80ac197fa6a 133
mbed_official 330:c80ac197fa6a 134 /**
mbed_official 330:c80ac197fa6a 135 * @brief Performs the SRAM device initialization sequence
mbed_official 330:c80ac197fa6a 136 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 137 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 138 * @param Timing: Pointer to SRAM control timing structure
mbed_official 330:c80ac197fa6a 139 * @param ExtTiming: Pointer to SRAM extended mode timing structure
mbed_official 330:c80ac197fa6a 140 * @retval HAL status
mbed_official 330:c80ac197fa6a 141 */
mbed_official 330:c80ac197fa6a 142 HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming)
mbed_official 330:c80ac197fa6a 143 {
mbed_official 330:c80ac197fa6a 144 /* Check the SRAM handle parameter */
mbed_official 634:ac7d6880524d 145 if(hsram == HAL_NULL)
mbed_official 330:c80ac197fa6a 146 {
mbed_official 330:c80ac197fa6a 147 return HAL_ERROR;
mbed_official 330:c80ac197fa6a 148 }
mbed_official 330:c80ac197fa6a 149
mbed_official 330:c80ac197fa6a 150 if(hsram->State == HAL_SRAM_STATE_RESET)
mbed_official 330:c80ac197fa6a 151 {
mbed_official 330:c80ac197fa6a 152 /* Initialize the low level hardware (MSP) */
mbed_official 330:c80ac197fa6a 153 HAL_SRAM_MspInit(hsram);
mbed_official 330:c80ac197fa6a 154 }
mbed_official 330:c80ac197fa6a 155
mbed_official 330:c80ac197fa6a 156 /* Initialize SRAM control Interface */
mbed_official 330:c80ac197fa6a 157 FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));
mbed_official 330:c80ac197fa6a 158
mbed_official 330:c80ac197fa6a 159 /* Initialize SRAM timing Interface */
mbed_official 330:c80ac197fa6a 160 FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
mbed_official 330:c80ac197fa6a 161
mbed_official 330:c80ac197fa6a 162 /* Initialize SRAM extended mode timing Interface */
mbed_official 330:c80ac197fa6a 163 FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
mbed_official 330:c80ac197fa6a 164
mbed_official 330:c80ac197fa6a 165 /* Enable the NORSRAM device */
mbed_official 330:c80ac197fa6a 166 __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
mbed_official 330:c80ac197fa6a 167
mbed_official 330:c80ac197fa6a 168 return HAL_OK;
mbed_official 330:c80ac197fa6a 169 }
mbed_official 330:c80ac197fa6a 170
mbed_official 330:c80ac197fa6a 171 /**
mbed_official 330:c80ac197fa6a 172 * @brief Performs the SRAM device De-initialization sequence.
mbed_official 330:c80ac197fa6a 173 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 174 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 175 * @retval HAL status
mbed_official 330:c80ac197fa6a 176 */
mbed_official 330:c80ac197fa6a 177 HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 178 {
mbed_official 330:c80ac197fa6a 179 /* De-Initialize the low level hardware (MSP) */
mbed_official 330:c80ac197fa6a 180 HAL_SRAM_MspDeInit(hsram);
mbed_official 330:c80ac197fa6a 181
mbed_official 330:c80ac197fa6a 182 /* Configure the SRAM registers with their reset values */
mbed_official 330:c80ac197fa6a 183 FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);
mbed_official 330:c80ac197fa6a 184
mbed_official 330:c80ac197fa6a 185 hsram->State = HAL_SRAM_STATE_RESET;
mbed_official 330:c80ac197fa6a 186
mbed_official 330:c80ac197fa6a 187 /* Release Lock */
mbed_official 330:c80ac197fa6a 188 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 189
mbed_official 330:c80ac197fa6a 190 return HAL_OK;
mbed_official 330:c80ac197fa6a 191 }
mbed_official 330:c80ac197fa6a 192
mbed_official 330:c80ac197fa6a 193 /**
mbed_official 330:c80ac197fa6a 194 * @brief SRAM MSP Init.
mbed_official 330:c80ac197fa6a 195 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 196 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 197 * @retval None
mbed_official 330:c80ac197fa6a 198 */
mbed_official 330:c80ac197fa6a 199 __weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 200 {
mbed_official 330:c80ac197fa6a 201 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 330:c80ac197fa6a 202 the HAL_SRAM_MspInit could be implemented in the user file
mbed_official 330:c80ac197fa6a 203 */
mbed_official 330:c80ac197fa6a 204 }
mbed_official 330:c80ac197fa6a 205
mbed_official 330:c80ac197fa6a 206 /**
mbed_official 330:c80ac197fa6a 207 * @brief SRAM MSP DeInit.
mbed_official 330:c80ac197fa6a 208 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 209 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 210 * @retval None
mbed_official 330:c80ac197fa6a 211 */
mbed_official 330:c80ac197fa6a 212 __weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 213 {
mbed_official 330:c80ac197fa6a 214 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 330:c80ac197fa6a 215 the HAL_SRAM_MspDeInit could be implemented in the user file
mbed_official 330:c80ac197fa6a 216 */
mbed_official 330:c80ac197fa6a 217 }
mbed_official 330:c80ac197fa6a 218
mbed_official 330:c80ac197fa6a 219 /**
mbed_official 330:c80ac197fa6a 220 * @brief DMA transfer complete callback.
mbed_official 330:c80ac197fa6a 221 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 222 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 223 * @retval None
mbed_official 330:c80ac197fa6a 224 */
mbed_official 330:c80ac197fa6a 225 __weak void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
mbed_official 330:c80ac197fa6a 226 {
mbed_official 330:c80ac197fa6a 227 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 330:c80ac197fa6a 228 the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
mbed_official 330:c80ac197fa6a 229 */
mbed_official 330:c80ac197fa6a 230 }
mbed_official 330:c80ac197fa6a 231
mbed_official 330:c80ac197fa6a 232 /**
mbed_official 330:c80ac197fa6a 233 * @brief DMA transfer complete error callback.
mbed_official 330:c80ac197fa6a 234 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 235 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 236 * @retval None
mbed_official 330:c80ac197fa6a 237 */
mbed_official 330:c80ac197fa6a 238 __weak void HAL_SRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
mbed_official 330:c80ac197fa6a 239 {
mbed_official 330:c80ac197fa6a 240 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 330:c80ac197fa6a 241 the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
mbed_official 330:c80ac197fa6a 242 */
mbed_official 330:c80ac197fa6a 243 }
mbed_official 330:c80ac197fa6a 244
mbed_official 330:c80ac197fa6a 245 /**
mbed_official 330:c80ac197fa6a 246 * @}
mbed_official 330:c80ac197fa6a 247 */
mbed_official 330:c80ac197fa6a 248
mbed_official 330:c80ac197fa6a 249 /** @defgroup SRAM_Exported_Functions_Group2 Input Output and memory control functions
mbed_official 330:c80ac197fa6a 250 * @brief Input Output and memory control functions
mbed_official 330:c80ac197fa6a 251 *
mbed_official 330:c80ac197fa6a 252 @verbatim
mbed_official 330:c80ac197fa6a 253 ==============================================================================
mbed_official 330:c80ac197fa6a 254 ##### SRAM Input and Output functions #####
mbed_official 330:c80ac197fa6a 255 ==============================================================================
mbed_official 330:c80ac197fa6a 256 [..]
mbed_official 330:c80ac197fa6a 257 This section provides functions allowing to use and control the SRAM memory
mbed_official 330:c80ac197fa6a 258
mbed_official 330:c80ac197fa6a 259 @endverbatim
mbed_official 330:c80ac197fa6a 260 * @{
mbed_official 330:c80ac197fa6a 261 */
mbed_official 330:c80ac197fa6a 262
mbed_official 330:c80ac197fa6a 263 /**
mbed_official 330:c80ac197fa6a 264 * @brief Reads 8-bit buffer from SRAM memory.
mbed_official 330:c80ac197fa6a 265 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 266 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 267 * @param pAddress: Pointer to read start address
mbed_official 330:c80ac197fa6a 268 * @param pDstBuffer: Pointer to destination buffer
mbed_official 330:c80ac197fa6a 269 * @param BufferSize: Size of the buffer to read from memory
mbed_official 330:c80ac197fa6a 270 * @retval HAL status
mbed_official 330:c80ac197fa6a 271 */
mbed_official 330:c80ac197fa6a 272 HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 273 {
mbed_official 330:c80ac197fa6a 274 __IO uint8_t * psramaddress = (uint8_t *)pAddress;
mbed_official 330:c80ac197fa6a 275
mbed_official 330:c80ac197fa6a 276 /* Process Locked */
mbed_official 330:c80ac197fa6a 277 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 278
mbed_official 330:c80ac197fa6a 279 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 280 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 281
mbed_official 330:c80ac197fa6a 282 /* Read data from memory */
mbed_official 330:c80ac197fa6a 283 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 284 {
mbed_official 330:c80ac197fa6a 285 *pDstBuffer = *(__IO uint8_t *)psramaddress;
mbed_official 330:c80ac197fa6a 286 pDstBuffer++;
mbed_official 330:c80ac197fa6a 287 psramaddress++;
mbed_official 330:c80ac197fa6a 288 }
mbed_official 330:c80ac197fa6a 289
mbed_official 330:c80ac197fa6a 290 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 291 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 292
mbed_official 330:c80ac197fa6a 293 /* Process unlocked */
mbed_official 330:c80ac197fa6a 294 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 295
mbed_official 330:c80ac197fa6a 296 return HAL_OK;
mbed_official 330:c80ac197fa6a 297 }
mbed_official 330:c80ac197fa6a 298
mbed_official 330:c80ac197fa6a 299 /**
mbed_official 330:c80ac197fa6a 300 * @brief Writes 8-bit buffer to SRAM memory.
mbed_official 330:c80ac197fa6a 301 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 302 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 303 * @param pAddress: Pointer to write start address
mbed_official 330:c80ac197fa6a 304 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 330:c80ac197fa6a 305 * @param BufferSize: Size of the buffer to write to memory
mbed_official 330:c80ac197fa6a 306 * @retval HAL status
mbed_official 330:c80ac197fa6a 307 */
mbed_official 330:c80ac197fa6a 308 HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 309 {
mbed_official 330:c80ac197fa6a 310 __IO uint8_t * psramaddress = (uint8_t *)pAddress;
mbed_official 330:c80ac197fa6a 311
mbed_official 330:c80ac197fa6a 312 /* Check the SRAM controller state */
mbed_official 330:c80ac197fa6a 313 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 330:c80ac197fa6a 314 {
mbed_official 330:c80ac197fa6a 315 return HAL_ERROR;
mbed_official 330:c80ac197fa6a 316 }
mbed_official 330:c80ac197fa6a 317
mbed_official 330:c80ac197fa6a 318 /* Process Locked */
mbed_official 330:c80ac197fa6a 319 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 320
mbed_official 330:c80ac197fa6a 321 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 322 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 323
mbed_official 330:c80ac197fa6a 324 /* Write data to memory */
mbed_official 330:c80ac197fa6a 325 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 326 {
mbed_official 330:c80ac197fa6a 327 *(__IO uint8_t *)psramaddress = *pSrcBuffer;
mbed_official 330:c80ac197fa6a 328 pSrcBuffer++;
mbed_official 330:c80ac197fa6a 329 psramaddress++;
mbed_official 330:c80ac197fa6a 330 }
mbed_official 330:c80ac197fa6a 331
mbed_official 330:c80ac197fa6a 332 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 333 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 334
mbed_official 330:c80ac197fa6a 335 /* Process unlocked */
mbed_official 330:c80ac197fa6a 336 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 337
mbed_official 330:c80ac197fa6a 338 return HAL_OK;
mbed_official 330:c80ac197fa6a 339 }
mbed_official 330:c80ac197fa6a 340
mbed_official 330:c80ac197fa6a 341 /**
mbed_official 330:c80ac197fa6a 342 * @brief Reads 16-bit buffer from SRAM memory.
mbed_official 330:c80ac197fa6a 343 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 344 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 345 * @param pAddress: Pointer to read start address
mbed_official 330:c80ac197fa6a 346 * @param pDstBuffer: Pointer to destination buffer
mbed_official 330:c80ac197fa6a 347 * @param BufferSize: Size of the buffer to read from memory
mbed_official 330:c80ac197fa6a 348 * @retval HAL status
mbed_official 330:c80ac197fa6a 349 */
mbed_official 330:c80ac197fa6a 350 HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 351 {
mbed_official 330:c80ac197fa6a 352 __IO uint16_t * psramaddress = (uint16_t *)pAddress;
mbed_official 330:c80ac197fa6a 353
mbed_official 330:c80ac197fa6a 354 /* Process Locked */
mbed_official 330:c80ac197fa6a 355 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 356
mbed_official 330:c80ac197fa6a 357 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 358 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 359
mbed_official 330:c80ac197fa6a 360 /* Read data from memory */
mbed_official 330:c80ac197fa6a 361 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 362 {
mbed_official 330:c80ac197fa6a 363 *pDstBuffer = *(__IO uint16_t *)psramaddress;
mbed_official 330:c80ac197fa6a 364 pDstBuffer++;
mbed_official 330:c80ac197fa6a 365 psramaddress++;
mbed_official 330:c80ac197fa6a 366 }
mbed_official 330:c80ac197fa6a 367
mbed_official 330:c80ac197fa6a 368 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 369 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 370
mbed_official 330:c80ac197fa6a 371 /* Process unlocked */
mbed_official 330:c80ac197fa6a 372 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 373
mbed_official 330:c80ac197fa6a 374 return HAL_OK;
mbed_official 330:c80ac197fa6a 375 }
mbed_official 330:c80ac197fa6a 376
mbed_official 330:c80ac197fa6a 377 /**
mbed_official 330:c80ac197fa6a 378 * @brief Writes 16-bit buffer to SRAM memory.
mbed_official 330:c80ac197fa6a 379 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 380 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 381 * @param pAddress: Pointer to write start address
mbed_official 330:c80ac197fa6a 382 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 330:c80ac197fa6a 383 * @param BufferSize: Size of the buffer to write to memory
mbed_official 330:c80ac197fa6a 384 * @retval HAL status
mbed_official 330:c80ac197fa6a 385 */
mbed_official 330:c80ac197fa6a 386 HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 387 {
mbed_official 330:c80ac197fa6a 388 __IO uint16_t * psramaddress = (uint16_t *)pAddress;
mbed_official 330:c80ac197fa6a 389
mbed_official 330:c80ac197fa6a 390 /* Check the SRAM controller state */
mbed_official 330:c80ac197fa6a 391 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 330:c80ac197fa6a 392 {
mbed_official 330:c80ac197fa6a 393 return HAL_ERROR;
mbed_official 330:c80ac197fa6a 394 }
mbed_official 330:c80ac197fa6a 395
mbed_official 330:c80ac197fa6a 396 /* Process Locked */
mbed_official 330:c80ac197fa6a 397 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 398
mbed_official 330:c80ac197fa6a 399 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 400 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 401
mbed_official 330:c80ac197fa6a 402 /* Write data to memory */
mbed_official 330:c80ac197fa6a 403 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 404 {
mbed_official 330:c80ac197fa6a 405 *(__IO uint16_t *)psramaddress = *pSrcBuffer;
mbed_official 330:c80ac197fa6a 406 pSrcBuffer++;
mbed_official 330:c80ac197fa6a 407 psramaddress++;
mbed_official 330:c80ac197fa6a 408 }
mbed_official 330:c80ac197fa6a 409
mbed_official 330:c80ac197fa6a 410 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 411 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 412
mbed_official 330:c80ac197fa6a 413 /* Process unlocked */
mbed_official 330:c80ac197fa6a 414 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 415
mbed_official 330:c80ac197fa6a 416 return HAL_OK;
mbed_official 330:c80ac197fa6a 417 }
mbed_official 330:c80ac197fa6a 418
mbed_official 330:c80ac197fa6a 419 /**
mbed_official 330:c80ac197fa6a 420 * @brief Reads 32-bit buffer from SRAM memory.
mbed_official 330:c80ac197fa6a 421 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 422 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 423 * @param pAddress: Pointer to read start address
mbed_official 330:c80ac197fa6a 424 * @param pDstBuffer: Pointer to destination buffer
mbed_official 330:c80ac197fa6a 425 * @param BufferSize: Size of the buffer to read from memory
mbed_official 330:c80ac197fa6a 426 * @retval HAL status
mbed_official 330:c80ac197fa6a 427 */
mbed_official 330:c80ac197fa6a 428 HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 429 {
mbed_official 330:c80ac197fa6a 430 /* Process Locked */
mbed_official 330:c80ac197fa6a 431 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 432
mbed_official 330:c80ac197fa6a 433 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 434 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 435
mbed_official 330:c80ac197fa6a 436 /* Read data from memory */
mbed_official 330:c80ac197fa6a 437 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 438 {
mbed_official 330:c80ac197fa6a 439 *pDstBuffer = *(__IO uint32_t *)pAddress;
mbed_official 330:c80ac197fa6a 440 pDstBuffer++;
mbed_official 330:c80ac197fa6a 441 pAddress++;
mbed_official 330:c80ac197fa6a 442 }
mbed_official 330:c80ac197fa6a 443
mbed_official 330:c80ac197fa6a 444 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 445 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 446
mbed_official 330:c80ac197fa6a 447 /* Process unlocked */
mbed_official 330:c80ac197fa6a 448 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 449
mbed_official 330:c80ac197fa6a 450 return HAL_OK;
mbed_official 330:c80ac197fa6a 451 }
mbed_official 330:c80ac197fa6a 452
mbed_official 330:c80ac197fa6a 453 /**
mbed_official 330:c80ac197fa6a 454 * @brief Writes 32-bit buffer to SRAM memory.
mbed_official 330:c80ac197fa6a 455 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 456 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 457 * @param pAddress: Pointer to write start address
mbed_official 330:c80ac197fa6a 458 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 330:c80ac197fa6a 459 * @param BufferSize: Size of the buffer to write to memory
mbed_official 330:c80ac197fa6a 460 * @retval HAL status
mbed_official 330:c80ac197fa6a 461 */
mbed_official 330:c80ac197fa6a 462 HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 463 {
mbed_official 330:c80ac197fa6a 464 /* Check the SRAM controller state */
mbed_official 330:c80ac197fa6a 465 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 330:c80ac197fa6a 466 {
mbed_official 330:c80ac197fa6a 467 return HAL_ERROR;
mbed_official 330:c80ac197fa6a 468 }
mbed_official 330:c80ac197fa6a 469
mbed_official 330:c80ac197fa6a 470 /* Process Locked */
mbed_official 330:c80ac197fa6a 471 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 472
mbed_official 330:c80ac197fa6a 473 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 474 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 475
mbed_official 330:c80ac197fa6a 476 /* Write data to memory */
mbed_official 330:c80ac197fa6a 477 for(; BufferSize != 0; BufferSize--)
mbed_official 330:c80ac197fa6a 478 {
mbed_official 330:c80ac197fa6a 479 *(__IO uint32_t *)pAddress = *pSrcBuffer;
mbed_official 330:c80ac197fa6a 480 pSrcBuffer++;
mbed_official 330:c80ac197fa6a 481 pAddress++;
mbed_official 330:c80ac197fa6a 482 }
mbed_official 330:c80ac197fa6a 483
mbed_official 330:c80ac197fa6a 484 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 485 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 486
mbed_official 330:c80ac197fa6a 487 /* Process unlocked */
mbed_official 330:c80ac197fa6a 488 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 489
mbed_official 330:c80ac197fa6a 490 return HAL_OK;
mbed_official 330:c80ac197fa6a 491 }
mbed_official 330:c80ac197fa6a 492
mbed_official 330:c80ac197fa6a 493 /**
mbed_official 330:c80ac197fa6a 494 * @brief Reads a Words data from the SRAM memory using DMA transfer.
mbed_official 330:c80ac197fa6a 495 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 496 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 497 * @param pAddress: Pointer to read start address
mbed_official 330:c80ac197fa6a 498 * @param pDstBuffer: Pointer to destination buffer
mbed_official 330:c80ac197fa6a 499 * @param BufferSize: Size of the buffer to read from memory
mbed_official 330:c80ac197fa6a 500 * @retval HAL status
mbed_official 330:c80ac197fa6a 501 */
mbed_official 330:c80ac197fa6a 502 HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 503 {
mbed_official 330:c80ac197fa6a 504 /* Process Locked */
mbed_official 330:c80ac197fa6a 505 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 506
mbed_official 330:c80ac197fa6a 507 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 508 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 509
mbed_official 330:c80ac197fa6a 510 /* Configure DMA user callbacks */
mbed_official 330:c80ac197fa6a 511 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 330:c80ac197fa6a 512 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 330:c80ac197fa6a 513
mbed_official 330:c80ac197fa6a 514 /* Enable the DMA Stream */
mbed_official 330:c80ac197fa6a 515 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
mbed_official 330:c80ac197fa6a 516
mbed_official 330:c80ac197fa6a 517 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 518 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 519
mbed_official 330:c80ac197fa6a 520 /* Process unlocked */
mbed_official 330:c80ac197fa6a 521 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 522
mbed_official 330:c80ac197fa6a 523 return HAL_OK;
mbed_official 330:c80ac197fa6a 524 }
mbed_official 330:c80ac197fa6a 525
mbed_official 330:c80ac197fa6a 526 /**
mbed_official 330:c80ac197fa6a 527 * @brief Writes a Words data buffer to SRAM memory using DMA transfer.
mbed_official 330:c80ac197fa6a 528 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 529 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 530 * @param pAddress: Pointer to write start address
mbed_official 330:c80ac197fa6a 531 * @param pSrcBuffer: Pointer to source buffer to write
mbed_official 330:c80ac197fa6a 532 * @param BufferSize: Size of the buffer to write to memory
mbed_official 330:c80ac197fa6a 533 * @retval HAL status
mbed_official 330:c80ac197fa6a 534 */
mbed_official 330:c80ac197fa6a 535 HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
mbed_official 330:c80ac197fa6a 536 {
mbed_official 330:c80ac197fa6a 537 /* Check the SRAM controller state */
mbed_official 330:c80ac197fa6a 538 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
mbed_official 330:c80ac197fa6a 539 {
mbed_official 330:c80ac197fa6a 540 return HAL_ERROR;
mbed_official 330:c80ac197fa6a 541 }
mbed_official 330:c80ac197fa6a 542
mbed_official 330:c80ac197fa6a 543 /* Process Locked */
mbed_official 330:c80ac197fa6a 544 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 545
mbed_official 330:c80ac197fa6a 546 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 547 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 548
mbed_official 330:c80ac197fa6a 549 /* Configure DMA user callbacks */
mbed_official 330:c80ac197fa6a 550 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
mbed_official 330:c80ac197fa6a 551 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
mbed_official 330:c80ac197fa6a 552
mbed_official 330:c80ac197fa6a 553 /* Enable the DMA Stream */
mbed_official 330:c80ac197fa6a 554 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
mbed_official 330:c80ac197fa6a 555
mbed_official 330:c80ac197fa6a 556 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 557 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 558
mbed_official 330:c80ac197fa6a 559 /* Process unlocked */
mbed_official 330:c80ac197fa6a 560 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 561
mbed_official 330:c80ac197fa6a 562 return HAL_OK;
mbed_official 330:c80ac197fa6a 563 }
mbed_official 330:c80ac197fa6a 564
mbed_official 330:c80ac197fa6a 565 /**
mbed_official 330:c80ac197fa6a 566 * @}
mbed_official 330:c80ac197fa6a 567 */
mbed_official 330:c80ac197fa6a 568
mbed_official 330:c80ac197fa6a 569 /** @defgroup SRAM_Exported_Functions_Group3 Control functions
mbed_official 330:c80ac197fa6a 570 * @brief Control functions
mbed_official 330:c80ac197fa6a 571 *
mbed_official 330:c80ac197fa6a 572 @verbatim
mbed_official 330:c80ac197fa6a 573 ==============================================================================
mbed_official 330:c80ac197fa6a 574 ##### SRAM Control functions #####
mbed_official 330:c80ac197fa6a 575 ==============================================================================
mbed_official 330:c80ac197fa6a 576 [..]
mbed_official 330:c80ac197fa6a 577 This subsection provides a set of functions allowing to control dynamically
mbed_official 330:c80ac197fa6a 578 the SRAM interface.
mbed_official 330:c80ac197fa6a 579
mbed_official 330:c80ac197fa6a 580 @endverbatim
mbed_official 330:c80ac197fa6a 581 * @{
mbed_official 330:c80ac197fa6a 582 */
mbed_official 330:c80ac197fa6a 583
mbed_official 330:c80ac197fa6a 584 /**
mbed_official 330:c80ac197fa6a 585 * @brief Enables dynamically SRAM write operation.
mbed_official 330:c80ac197fa6a 586 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 587 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 588 * @retval HAL status
mbed_official 330:c80ac197fa6a 589 */
mbed_official 330:c80ac197fa6a 590 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 591 {
mbed_official 330:c80ac197fa6a 592 /* Process Locked */
mbed_official 330:c80ac197fa6a 593 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 594
mbed_official 330:c80ac197fa6a 595 /* Enable write operation */
mbed_official 330:c80ac197fa6a 596 FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank);
mbed_official 330:c80ac197fa6a 597
mbed_official 330:c80ac197fa6a 598 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 599 hsram->State = HAL_SRAM_STATE_READY;
mbed_official 330:c80ac197fa6a 600
mbed_official 330:c80ac197fa6a 601 /* Process unlocked */
mbed_official 330:c80ac197fa6a 602 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 603
mbed_official 330:c80ac197fa6a 604 return HAL_OK;
mbed_official 330:c80ac197fa6a 605 }
mbed_official 330:c80ac197fa6a 606
mbed_official 330:c80ac197fa6a 607 /**
mbed_official 330:c80ac197fa6a 608 * @brief Disables dynamically SRAM write operation.
mbed_official 330:c80ac197fa6a 609 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 610 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 611 * @retval HAL status
mbed_official 330:c80ac197fa6a 612 */
mbed_official 330:c80ac197fa6a 613 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 614 {
mbed_official 330:c80ac197fa6a 615 /* Process Locked */
mbed_official 330:c80ac197fa6a 616 __HAL_LOCK(hsram);
mbed_official 330:c80ac197fa6a 617
mbed_official 330:c80ac197fa6a 618 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 619 hsram->State = HAL_SRAM_STATE_BUSY;
mbed_official 330:c80ac197fa6a 620
mbed_official 330:c80ac197fa6a 621 /* Disable write operation */
mbed_official 330:c80ac197fa6a 622 FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank);
mbed_official 330:c80ac197fa6a 623
mbed_official 330:c80ac197fa6a 624 /* Update the SRAM controller state */
mbed_official 330:c80ac197fa6a 625 hsram->State = HAL_SRAM_STATE_PROTECTED;
mbed_official 330:c80ac197fa6a 626
mbed_official 330:c80ac197fa6a 627 /* Process unlocked */
mbed_official 330:c80ac197fa6a 628 __HAL_UNLOCK(hsram);
mbed_official 330:c80ac197fa6a 629
mbed_official 330:c80ac197fa6a 630 return HAL_OK;
mbed_official 330:c80ac197fa6a 631 }
mbed_official 330:c80ac197fa6a 632
mbed_official 330:c80ac197fa6a 633 /**
mbed_official 330:c80ac197fa6a 634 * @}
mbed_official 330:c80ac197fa6a 635 */
mbed_official 330:c80ac197fa6a 636
mbed_official 330:c80ac197fa6a 637 /** @defgroup SRAM_Exported_Functions_Group4 Peripheral State functions
mbed_official 330:c80ac197fa6a 638 * @brief Peripheral State functions
mbed_official 330:c80ac197fa6a 639 *
mbed_official 330:c80ac197fa6a 640 @verbatim
mbed_official 330:c80ac197fa6a 641 ==============================================================================
mbed_official 330:c80ac197fa6a 642 ##### SRAM State functions #####
mbed_official 330:c80ac197fa6a 643 ==============================================================================
mbed_official 330:c80ac197fa6a 644 [..]
mbed_official 330:c80ac197fa6a 645 This subsection permits to get in run-time the status of the SRAM controller
mbed_official 330:c80ac197fa6a 646 and the data flow.
mbed_official 330:c80ac197fa6a 647
mbed_official 330:c80ac197fa6a 648 @endverbatim
mbed_official 330:c80ac197fa6a 649 * @{
mbed_official 330:c80ac197fa6a 650 */
mbed_official 330:c80ac197fa6a 651
mbed_official 330:c80ac197fa6a 652 /**
mbed_official 330:c80ac197fa6a 653 * @brief Returns the SRAM controller state
mbed_official 330:c80ac197fa6a 654 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
mbed_official 330:c80ac197fa6a 655 * the configuration information for SRAM module.
mbed_official 330:c80ac197fa6a 656 * @retval HAL state
mbed_official 330:c80ac197fa6a 657 */
mbed_official 330:c80ac197fa6a 658 HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram)
mbed_official 330:c80ac197fa6a 659 {
mbed_official 330:c80ac197fa6a 660 return hsram->State;
mbed_official 330:c80ac197fa6a 661 }
mbed_official 330:c80ac197fa6a 662
mbed_official 330:c80ac197fa6a 663 /**
mbed_official 330:c80ac197fa6a 664 * @}
mbed_official 330:c80ac197fa6a 665 */
mbed_official 330:c80ac197fa6a 666
mbed_official 330:c80ac197fa6a 667 /**
mbed_official 330:c80ac197fa6a 668 * @}
mbed_official 330:c80ac197fa6a 669 */
mbed_official 330:c80ac197fa6a 670 #endif /* STM32F302xE || STM32F303xE || STM32F398xx */
mbed_official 330:c80ac197fa6a 671 #endif /* HAL_SRAM_MODULE_ENABLED */
mbed_official 330:c80ac197fa6a 672 /**
mbed_official 330:c80ac197fa6a 673 * @}
mbed_official 330:c80ac197fa6a 674 */
mbed_official 330:c80ac197fa6a 675
mbed_official 330:c80ac197fa6a 676 /**
mbed_official 330:c80ac197fa6a 677 * @}
mbed_official 330:c80ac197fa6a 678 */
mbed_official 330:c80ac197fa6a 679
mbed_official 330:c80ac197fa6a 680 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/