en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_sram.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
19:112740acecfa 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f4xx_hal_sram.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 19:112740acecfa 5 * @version V1.4.1
mbed_official 19:112740acecfa 6 * @date 09-October-2015
bogdanm 0:9b334a45a8ff 7 * @brief SRAM HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides a generic firmware to drive SRAM memories
bogdanm 0:9b334a45a8ff 9 * mounted as external device.
bogdanm 0:9b334a45a8ff 10 *
bogdanm 0:9b334a45a8ff 11 @verbatim
bogdanm 0:9b334a45a8ff 12 ==============================================================================
bogdanm 0:9b334a45a8ff 13 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 14 ==============================================================================
bogdanm 0:9b334a45a8ff 15 [..]
bogdanm 0:9b334a45a8ff 16 This driver is a generic layered driver which contains a set of APIs used to
bogdanm 0:9b334a45a8ff 17 control SRAM memories. It uses the FMC layer functions to interface
bogdanm 0:9b334a45a8ff 18 with SRAM devices.
bogdanm 0:9b334a45a8ff 19 The following sequence should be followed to configure the FMC/FSMC to interface
bogdanm 0:9b334a45a8ff 20 with SRAM/PSRAM memories:
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 (#) Declare a SRAM_HandleTypeDef handle structure, for example:
bogdanm 0:9b334a45a8ff 23 SRAM_HandleTypeDef hsram; and:
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 (++) Fill the SRAM_HandleTypeDef handle "Init" field with the allowed
bogdanm 0:9b334a45a8ff 26 values of the structure member.
bogdanm 0:9b334a45a8ff 27
bogdanm 0:9b334a45a8ff 28 (++) Fill the SRAM_HandleTypeDef handle "Instance" field with a predefined
bogdanm 0:9b334a45a8ff 29 base register instance for NOR or SRAM device
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 (++) Fill the SRAM_HandleTypeDef handle "Extended" field with a predefined
bogdanm 0:9b334a45a8ff 32 base register instance for NOR or SRAM extended mode
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 (#) Declare two FMC_NORSRAM_TimingTypeDef structures, for both normal and extended
bogdanm 0:9b334a45a8ff 35 mode timings; for example:
bogdanm 0:9b334a45a8ff 36 FMC_NORSRAM_TimingTypeDef Timing and FMC_NORSRAM_TimingTypeDef ExTiming;
bogdanm 0:9b334a45a8ff 37 and fill its fields with the allowed values of the structure member.
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 (#) Initialize the SRAM Controller by calling the function HAL_SRAM_Init(). This function
bogdanm 0:9b334a45a8ff 40 performs the following sequence:
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 (##) MSP hardware layer configuration using the function HAL_SRAM_MspInit()
bogdanm 0:9b334a45a8ff 43 (##) Control register configuration using the FMC NORSRAM interface function
bogdanm 0:9b334a45a8ff 44 FMC_NORSRAM_Init()
bogdanm 0:9b334a45a8ff 45 (##) Timing register configuration using the FMC NORSRAM interface function
bogdanm 0:9b334a45a8ff 46 FMC_NORSRAM_Timing_Init()
bogdanm 0:9b334a45a8ff 47 (##) Extended mode Timing register configuration using the FMC NORSRAM interface function
bogdanm 0:9b334a45a8ff 48 FMC_NORSRAM_Extended_Timing_Init()
bogdanm 0:9b334a45a8ff 49 (##) Enable the SRAM device using the macro __FMC_NORSRAM_ENABLE()
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 (#) At this stage you can perform read/write accesses from/to the memory connected
bogdanm 0:9b334a45a8ff 52 to the NOR/SRAM Bank. You can perform either polling or DMA transfer using the
bogdanm 0:9b334a45a8ff 53 following APIs:
bogdanm 0:9b334a45a8ff 54 (++) HAL_SRAM_Read()/HAL_SRAM_Write() for polling read/write access
bogdanm 0:9b334a45a8ff 55 (++) HAL_SRAM_Read_DMA()/HAL_SRAM_Write_DMA() for DMA read/write transfer
bogdanm 0:9b334a45a8ff 56
bogdanm 0:9b334a45a8ff 57 (#) You can also control the SRAM device by calling the control APIs HAL_SRAM_WriteOperation_Enable()/
bogdanm 0:9b334a45a8ff 58 HAL_SRAM_WriteOperation_Disable() to respectively enable/disable the SRAM write operation
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 (#) You can continuously monitor the SRAM device HAL state by calling the function
bogdanm 0:9b334a45a8ff 61 HAL_SRAM_GetState()
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 @endverbatim
bogdanm 0:9b334a45a8ff 64 ******************************************************************************
bogdanm 0:9b334a45a8ff 65 * @attention
bogdanm 0:9b334a45a8ff 66 *
bogdanm 0:9b334a45a8ff 67 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 68 *
bogdanm 0:9b334a45a8ff 69 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 70 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 71 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 72 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 73 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 74 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 75 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 76 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 77 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 78 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 79 *
bogdanm 0:9b334a45a8ff 80 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 81 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 82 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 83 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 84 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 85 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 86 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 87 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 88 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 89 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 90 *
bogdanm 0:9b334a45a8ff 91 ******************************************************************************
bogdanm 0:9b334a45a8ff 92 */
bogdanm 0:9b334a45a8ff 93
bogdanm 0:9b334a45a8ff 94 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 95 #include "stm32f4xx_hal.h"
bogdanm 0:9b334a45a8ff 96
bogdanm 0:9b334a45a8ff 97 /** @addtogroup STM32F4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 98 * @{
bogdanm 0:9b334a45a8ff 99 */
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 /** @defgroup SRAM SRAM
bogdanm 0:9b334a45a8ff 102 * @brief SRAM driver modules
bogdanm 0:9b334a45a8ff 103 * @{
bogdanm 0:9b334a45a8ff 104 */
bogdanm 0:9b334a45a8ff 105 #ifdef HAL_SRAM_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\
bogdanm 0:9b334a45a8ff 108 defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
mbed_official 19:112740acecfa 109 defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 112 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 113 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 114 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 115 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 118 /** @defgroup SRAM_Exported_Functions SRAM Exported Functions
bogdanm 0:9b334a45a8ff 119 * @{
bogdanm 0:9b334a45a8ff 120 */
bogdanm 0:9b334a45a8ff 121 /** @defgroup SRAM_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 122 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 123 *
bogdanm 0:9b334a45a8ff 124 @verbatim
bogdanm 0:9b334a45a8ff 125 ==============================================================================
bogdanm 0:9b334a45a8ff 126 ##### SRAM Initialization and de_initialization functions #####
bogdanm 0:9b334a45a8ff 127 ==============================================================================
bogdanm 0:9b334a45a8ff 128 [..] This section provides functions allowing to initialize/de-initialize
bogdanm 0:9b334a45a8ff 129 the SRAM memory
bogdanm 0:9b334a45a8ff 130
bogdanm 0:9b334a45a8ff 131 @endverbatim
bogdanm 0:9b334a45a8ff 132 * @{
bogdanm 0:9b334a45a8ff 133 */
bogdanm 0:9b334a45a8ff 134
bogdanm 0:9b334a45a8ff 135 /**
bogdanm 0:9b334a45a8ff 136 * @brief Performs the SRAM device initialization sequence
bogdanm 0:9b334a45a8ff 137 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 138 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 139 * @param Timing: Pointer to SRAM control timing structure
bogdanm 0:9b334a45a8ff 140 * @param ExtTiming: Pointer to SRAM extended mode timing structure
bogdanm 0:9b334a45a8ff 141 * @retval HAL status
bogdanm 0:9b334a45a8ff 142 */
bogdanm 0:9b334a45a8ff 143 HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming)
bogdanm 0:9b334a45a8ff 144 {
bogdanm 0:9b334a45a8ff 145 /* Check the SRAM handle parameter */
bogdanm 0:9b334a45a8ff 146 if(hsram == NULL)
bogdanm 0:9b334a45a8ff 147 {
bogdanm 0:9b334a45a8ff 148 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 149 }
bogdanm 0:9b334a45a8ff 150
bogdanm 0:9b334a45a8ff 151 if(hsram->State == HAL_SRAM_STATE_RESET)
bogdanm 0:9b334a45a8ff 152 {
bogdanm 0:9b334a45a8ff 153 /* Allocate lock resource and initialize it */
bogdanm 0:9b334a45a8ff 154 hsram->Lock = HAL_UNLOCKED;
bogdanm 0:9b334a45a8ff 155 /* Initialize the low level hardware (MSP) */
bogdanm 0:9b334a45a8ff 156 HAL_SRAM_MspInit(hsram);
bogdanm 0:9b334a45a8ff 157 }
bogdanm 0:9b334a45a8ff 158
bogdanm 0:9b334a45a8ff 159 /* Initialize SRAM control Interface */
bogdanm 0:9b334a45a8ff 160 FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));
bogdanm 0:9b334a45a8ff 161
bogdanm 0:9b334a45a8ff 162 /* Initialize SRAM timing Interface */
bogdanm 0:9b334a45a8ff 163 FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
bogdanm 0:9b334a45a8ff 164
bogdanm 0:9b334a45a8ff 165 /* Initialize SRAM extended mode timing Interface */
bogdanm 0:9b334a45a8ff 166 FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
bogdanm 0:9b334a45a8ff 167
bogdanm 0:9b334a45a8ff 168 /* Enable the NORSRAM device */
bogdanm 0:9b334a45a8ff 169 __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
bogdanm 0:9b334a45a8ff 170
bogdanm 0:9b334a45a8ff 171 return HAL_OK;
bogdanm 0:9b334a45a8ff 172 }
bogdanm 0:9b334a45a8ff 173
bogdanm 0:9b334a45a8ff 174 /**
bogdanm 0:9b334a45a8ff 175 * @brief Performs the SRAM device De-initialization sequence.
bogdanm 0:9b334a45a8ff 176 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 177 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 178 * @retval HAL status
bogdanm 0:9b334a45a8ff 179 */
bogdanm 0:9b334a45a8ff 180 HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 181 {
bogdanm 0:9b334a45a8ff 182 /* De-Initialize the low level hardware (MSP) */
bogdanm 0:9b334a45a8ff 183 HAL_SRAM_MspDeInit(hsram);
bogdanm 0:9b334a45a8ff 184
bogdanm 0:9b334a45a8ff 185 /* Configure the SRAM registers with their reset values */
bogdanm 0:9b334a45a8ff 186 FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);
bogdanm 0:9b334a45a8ff 187
bogdanm 0:9b334a45a8ff 188 hsram->State = HAL_SRAM_STATE_RESET;
bogdanm 0:9b334a45a8ff 189
bogdanm 0:9b334a45a8ff 190 /* Release Lock */
bogdanm 0:9b334a45a8ff 191 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 192
bogdanm 0:9b334a45a8ff 193 return HAL_OK;
bogdanm 0:9b334a45a8ff 194 }
bogdanm 0:9b334a45a8ff 195
bogdanm 0:9b334a45a8ff 196 /**
bogdanm 0:9b334a45a8ff 197 * @brief SRAM MSP Init.
bogdanm 0:9b334a45a8ff 198 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 199 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 200 * @retval None
bogdanm 0:9b334a45a8ff 201 */
bogdanm 0:9b334a45a8ff 202 __weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 203 {
bogdanm 0:9b334a45a8ff 204 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 205 the HAL_SRAM_MspInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 206 */
bogdanm 0:9b334a45a8ff 207 }
bogdanm 0:9b334a45a8ff 208
bogdanm 0:9b334a45a8ff 209 /**
bogdanm 0:9b334a45a8ff 210 * @brief SRAM MSP DeInit.
bogdanm 0:9b334a45a8ff 211 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 212 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 213 * @retval None
bogdanm 0:9b334a45a8ff 214 */
bogdanm 0:9b334a45a8ff 215 __weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 216 {
bogdanm 0:9b334a45a8ff 217 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 218 the HAL_SRAM_MspDeInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 219 */
bogdanm 0:9b334a45a8ff 220 }
bogdanm 0:9b334a45a8ff 221
bogdanm 0:9b334a45a8ff 222 /**
bogdanm 0:9b334a45a8ff 223 * @brief DMA transfer complete callback.
bogdanm 0:9b334a45a8ff 224 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 225 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 226 * @retval None
bogdanm 0:9b334a45a8ff 227 */
bogdanm 0:9b334a45a8ff 228 __weak void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 229 {
bogdanm 0:9b334a45a8ff 230 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 231 the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 232 */
bogdanm 0:9b334a45a8ff 233 }
bogdanm 0:9b334a45a8ff 234
bogdanm 0:9b334a45a8ff 235 /**
bogdanm 0:9b334a45a8ff 236 * @brief DMA transfer complete error callback.
bogdanm 0:9b334a45a8ff 237 * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 238 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 239 * @retval None
bogdanm 0:9b334a45a8ff 240 */
bogdanm 0:9b334a45a8ff 241 __weak void HAL_SRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 242 {
bogdanm 0:9b334a45a8ff 243 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 244 the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 245 */
bogdanm 0:9b334a45a8ff 246 }
bogdanm 0:9b334a45a8ff 247
bogdanm 0:9b334a45a8ff 248 /**
bogdanm 0:9b334a45a8ff 249 * @}
bogdanm 0:9b334a45a8ff 250 */
bogdanm 0:9b334a45a8ff 251
bogdanm 0:9b334a45a8ff 252 /** @defgroup SRAM_Exported_Functions_Group2 Input and Output functions
bogdanm 0:9b334a45a8ff 253 * @brief Input Output and memory control functions
bogdanm 0:9b334a45a8ff 254 *
bogdanm 0:9b334a45a8ff 255 @verbatim
bogdanm 0:9b334a45a8ff 256 ==============================================================================
bogdanm 0:9b334a45a8ff 257 ##### SRAM Input and Output functions #####
bogdanm 0:9b334a45a8ff 258 ==============================================================================
bogdanm 0:9b334a45a8ff 259 [..]
bogdanm 0:9b334a45a8ff 260 This section provides functions allowing to use and control the SRAM memory
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 @endverbatim
bogdanm 0:9b334a45a8ff 263 * @{
bogdanm 0:9b334a45a8ff 264 */
bogdanm 0:9b334a45a8ff 265
bogdanm 0:9b334a45a8ff 266 /**
bogdanm 0:9b334a45a8ff 267 * @brief Reads 8-bit buffer from SRAM memory.
bogdanm 0:9b334a45a8ff 268 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 269 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 270 * @param pAddress: Pointer to read start address
bogdanm 0:9b334a45a8ff 271 * @param pDstBuffer: Pointer to destination buffer
bogdanm 0:9b334a45a8ff 272 * @param BufferSize: Size of the buffer to read from memory
bogdanm 0:9b334a45a8ff 273 * @retval HAL status
bogdanm 0:9b334a45a8ff 274 */
bogdanm 0:9b334a45a8ff 275 HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 276 {
bogdanm 0:9b334a45a8ff 277 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
bogdanm 0:9b334a45a8ff 278
bogdanm 0:9b334a45a8ff 279 /* Process Locked */
bogdanm 0:9b334a45a8ff 280 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 281
bogdanm 0:9b334a45a8ff 282 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 283 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 284
bogdanm 0:9b334a45a8ff 285 /* Read data from memory */
bogdanm 0:9b334a45a8ff 286 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 287 {
bogdanm 0:9b334a45a8ff 288 *pDstBuffer = *(__IO uint8_t *)pSramAddress;
bogdanm 0:9b334a45a8ff 289 pDstBuffer++;
bogdanm 0:9b334a45a8ff 290 pSramAddress++;
bogdanm 0:9b334a45a8ff 291 }
bogdanm 0:9b334a45a8ff 292
bogdanm 0:9b334a45a8ff 293 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 294 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 295
bogdanm 0:9b334a45a8ff 296 /* Process unlocked */
bogdanm 0:9b334a45a8ff 297 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 298
bogdanm 0:9b334a45a8ff 299 return HAL_OK;
bogdanm 0:9b334a45a8ff 300 }
bogdanm 0:9b334a45a8ff 301
bogdanm 0:9b334a45a8ff 302 /**
bogdanm 0:9b334a45a8ff 303 * @brief Writes 8-bit buffer to SRAM memory.
bogdanm 0:9b334a45a8ff 304 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 305 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 306 * @param pAddress: Pointer to write start address
bogdanm 0:9b334a45a8ff 307 * @param pSrcBuffer: Pointer to source buffer to write
bogdanm 0:9b334a45a8ff 308 * @param BufferSize: Size of the buffer to write to memory
bogdanm 0:9b334a45a8ff 309 * @retval HAL status
bogdanm 0:9b334a45a8ff 310 */
bogdanm 0:9b334a45a8ff 311 HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 312 {
bogdanm 0:9b334a45a8ff 313 __IO uint8_t * pSramAddress = (uint8_t *)pAddress;
bogdanm 0:9b334a45a8ff 314
bogdanm 0:9b334a45a8ff 315 /* Check the SRAM controller state */
bogdanm 0:9b334a45a8ff 316 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
bogdanm 0:9b334a45a8ff 317 {
bogdanm 0:9b334a45a8ff 318 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 319 }
bogdanm 0:9b334a45a8ff 320
bogdanm 0:9b334a45a8ff 321 /* Process Locked */
bogdanm 0:9b334a45a8ff 322 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 325 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 326
bogdanm 0:9b334a45a8ff 327 /* Write data to memory */
bogdanm 0:9b334a45a8ff 328 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 329 {
bogdanm 0:9b334a45a8ff 330 *(__IO uint8_t *)pSramAddress = *pSrcBuffer;
bogdanm 0:9b334a45a8ff 331 pSrcBuffer++;
bogdanm 0:9b334a45a8ff 332 pSramAddress++;
bogdanm 0:9b334a45a8ff 333 }
bogdanm 0:9b334a45a8ff 334
bogdanm 0:9b334a45a8ff 335 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 336 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 337
bogdanm 0:9b334a45a8ff 338 /* Process unlocked */
bogdanm 0:9b334a45a8ff 339 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 340
bogdanm 0:9b334a45a8ff 341 return HAL_OK;
bogdanm 0:9b334a45a8ff 342 }
bogdanm 0:9b334a45a8ff 343
bogdanm 0:9b334a45a8ff 344 /**
bogdanm 0:9b334a45a8ff 345 * @brief Reads 16-bit buffer from SRAM memory.
bogdanm 0:9b334a45a8ff 346 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 347 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 348 * @param pAddress: Pointer to read start address
bogdanm 0:9b334a45a8ff 349 * @param pDstBuffer: Pointer to destination buffer
bogdanm 0:9b334a45a8ff 350 * @param BufferSize: Size of the buffer to read from memory
bogdanm 0:9b334a45a8ff 351 * @retval HAL status
bogdanm 0:9b334a45a8ff 352 */
bogdanm 0:9b334a45a8ff 353 HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 354 {
bogdanm 0:9b334a45a8ff 355 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
bogdanm 0:9b334a45a8ff 356
bogdanm 0:9b334a45a8ff 357 /* Process Locked */
bogdanm 0:9b334a45a8ff 358 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 359
bogdanm 0:9b334a45a8ff 360 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 361 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 362
bogdanm 0:9b334a45a8ff 363 /* Read data from memory */
bogdanm 0:9b334a45a8ff 364 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 365 {
bogdanm 0:9b334a45a8ff 366 *pDstBuffer = *(__IO uint16_t *)pSramAddress;
bogdanm 0:9b334a45a8ff 367 pDstBuffer++;
bogdanm 0:9b334a45a8ff 368 pSramAddress++;
bogdanm 0:9b334a45a8ff 369 }
bogdanm 0:9b334a45a8ff 370
bogdanm 0:9b334a45a8ff 371 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 372 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 373
bogdanm 0:9b334a45a8ff 374 /* Process unlocked */
bogdanm 0:9b334a45a8ff 375 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 376
bogdanm 0:9b334a45a8ff 377 return HAL_OK;
bogdanm 0:9b334a45a8ff 378 }
bogdanm 0:9b334a45a8ff 379
bogdanm 0:9b334a45a8ff 380 /**
bogdanm 0:9b334a45a8ff 381 * @brief Writes 16-bit buffer to SRAM memory.
bogdanm 0:9b334a45a8ff 382 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 383 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 384 * @param pAddress: Pointer to write start address
bogdanm 0:9b334a45a8ff 385 * @param pSrcBuffer: Pointer to source buffer to write
bogdanm 0:9b334a45a8ff 386 * @param BufferSize: Size of the buffer to write to memory
bogdanm 0:9b334a45a8ff 387 * @retval HAL status
bogdanm 0:9b334a45a8ff 388 */
bogdanm 0:9b334a45a8ff 389 HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 390 {
bogdanm 0:9b334a45a8ff 391 __IO uint16_t * pSramAddress = (uint16_t *)pAddress;
bogdanm 0:9b334a45a8ff 392
bogdanm 0:9b334a45a8ff 393 /* Check the SRAM controller state */
bogdanm 0:9b334a45a8ff 394 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
bogdanm 0:9b334a45a8ff 395 {
bogdanm 0:9b334a45a8ff 396 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 397 }
bogdanm 0:9b334a45a8ff 398
bogdanm 0:9b334a45a8ff 399 /* Process Locked */
bogdanm 0:9b334a45a8ff 400 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 401
bogdanm 0:9b334a45a8ff 402 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 403 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 404
bogdanm 0:9b334a45a8ff 405 /* Write data to memory */
bogdanm 0:9b334a45a8ff 406 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 407 {
bogdanm 0:9b334a45a8ff 408 *(__IO uint16_t *)pSramAddress = *pSrcBuffer;
bogdanm 0:9b334a45a8ff 409 pSrcBuffer++;
bogdanm 0:9b334a45a8ff 410 pSramAddress++;
bogdanm 0:9b334a45a8ff 411 }
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 414 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 415
bogdanm 0:9b334a45a8ff 416 /* Process unlocked */
bogdanm 0:9b334a45a8ff 417 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 418
bogdanm 0:9b334a45a8ff 419 return HAL_OK;
bogdanm 0:9b334a45a8ff 420 }
bogdanm 0:9b334a45a8ff 421
bogdanm 0:9b334a45a8ff 422 /**
bogdanm 0:9b334a45a8ff 423 * @brief Reads 32-bit buffer from SRAM memory.
bogdanm 0:9b334a45a8ff 424 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 425 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 426 * @param pAddress: Pointer to read start address
bogdanm 0:9b334a45a8ff 427 * @param pDstBuffer: Pointer to destination buffer
bogdanm 0:9b334a45a8ff 428 * @param BufferSize: Size of the buffer to read from memory
bogdanm 0:9b334a45a8ff 429 * @retval HAL status
bogdanm 0:9b334a45a8ff 430 */
bogdanm 0:9b334a45a8ff 431 HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 432 {
bogdanm 0:9b334a45a8ff 433 /* Process Locked */
bogdanm 0:9b334a45a8ff 434 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 435
bogdanm 0:9b334a45a8ff 436 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 437 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 438
bogdanm 0:9b334a45a8ff 439 /* Read data from memory */
bogdanm 0:9b334a45a8ff 440 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 441 {
bogdanm 0:9b334a45a8ff 442 *pDstBuffer = *(__IO uint32_t *)pAddress;
bogdanm 0:9b334a45a8ff 443 pDstBuffer++;
bogdanm 0:9b334a45a8ff 444 pAddress++;
bogdanm 0:9b334a45a8ff 445 }
bogdanm 0:9b334a45a8ff 446
bogdanm 0:9b334a45a8ff 447 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 448 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 449
bogdanm 0:9b334a45a8ff 450 /* Process unlocked */
bogdanm 0:9b334a45a8ff 451 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 452
bogdanm 0:9b334a45a8ff 453 return HAL_OK;
bogdanm 0:9b334a45a8ff 454 }
bogdanm 0:9b334a45a8ff 455
bogdanm 0:9b334a45a8ff 456 /**
bogdanm 0:9b334a45a8ff 457 * @brief Writes 32-bit buffer to SRAM memory.
bogdanm 0:9b334a45a8ff 458 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 459 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 460 * @param pAddress: Pointer to write start address
bogdanm 0:9b334a45a8ff 461 * @param pSrcBuffer: Pointer to source buffer to write
bogdanm 0:9b334a45a8ff 462 * @param BufferSize: Size of the buffer to write to memory
bogdanm 0:9b334a45a8ff 463 * @retval HAL status
bogdanm 0:9b334a45a8ff 464 */
bogdanm 0:9b334a45a8ff 465 HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 466 {
bogdanm 0:9b334a45a8ff 467 /* Check the SRAM controller state */
bogdanm 0:9b334a45a8ff 468 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
bogdanm 0:9b334a45a8ff 469 {
bogdanm 0:9b334a45a8ff 470 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 471 }
bogdanm 0:9b334a45a8ff 472
bogdanm 0:9b334a45a8ff 473 /* Process Locked */
bogdanm 0:9b334a45a8ff 474 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 475
bogdanm 0:9b334a45a8ff 476 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 477 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 478
bogdanm 0:9b334a45a8ff 479 /* Write data to memory */
bogdanm 0:9b334a45a8ff 480 for(; BufferSize != 0; BufferSize--)
bogdanm 0:9b334a45a8ff 481 {
bogdanm 0:9b334a45a8ff 482 *(__IO uint32_t *)pAddress = *pSrcBuffer;
bogdanm 0:9b334a45a8ff 483 pSrcBuffer++;
bogdanm 0:9b334a45a8ff 484 pAddress++;
bogdanm 0:9b334a45a8ff 485 }
bogdanm 0:9b334a45a8ff 486
bogdanm 0:9b334a45a8ff 487 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 488 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 489
bogdanm 0:9b334a45a8ff 490 /* Process unlocked */
bogdanm 0:9b334a45a8ff 491 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 492
bogdanm 0:9b334a45a8ff 493 return HAL_OK;
bogdanm 0:9b334a45a8ff 494 }
bogdanm 0:9b334a45a8ff 495
bogdanm 0:9b334a45a8ff 496 /**
bogdanm 0:9b334a45a8ff 497 * @brief Reads a Words data from the SRAM memory using DMA transfer.
bogdanm 0:9b334a45a8ff 498 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 499 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 500 * @param pAddress: Pointer to read start address
bogdanm 0:9b334a45a8ff 501 * @param pDstBuffer: Pointer to destination buffer
bogdanm 0:9b334a45a8ff 502 * @param BufferSize: Size of the buffer to read from memory
bogdanm 0:9b334a45a8ff 503 * @retval HAL status
bogdanm 0:9b334a45a8ff 504 */
bogdanm 0:9b334a45a8ff 505 HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 506 {
bogdanm 0:9b334a45a8ff 507 /* Process Locked */
bogdanm 0:9b334a45a8ff 508 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 509
bogdanm 0:9b334a45a8ff 510 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 511 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 512
bogdanm 0:9b334a45a8ff 513 /* Configure DMA user callbacks */
bogdanm 0:9b334a45a8ff 514 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
bogdanm 0:9b334a45a8ff 515 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
bogdanm 0:9b334a45a8ff 516
bogdanm 0:9b334a45a8ff 517 /* Enable the DMA Stream */
bogdanm 0:9b334a45a8ff 518 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
bogdanm 0:9b334a45a8ff 519
bogdanm 0:9b334a45a8ff 520 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 521 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 522
bogdanm 0:9b334a45a8ff 523 /* Process unlocked */
bogdanm 0:9b334a45a8ff 524 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 525
bogdanm 0:9b334a45a8ff 526 return HAL_OK;
bogdanm 0:9b334a45a8ff 527 }
bogdanm 0:9b334a45a8ff 528
bogdanm 0:9b334a45a8ff 529 /**
bogdanm 0:9b334a45a8ff 530 * @brief Writes a Words data buffer to SRAM memory using DMA transfer.
bogdanm 0:9b334a45a8ff 531 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 532 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 533 * @param pAddress: Pointer to write start address
bogdanm 0:9b334a45a8ff 534 * @param pSrcBuffer: Pointer to source buffer to write
bogdanm 0:9b334a45a8ff 535 * @param BufferSize: Size of the buffer to write to memory
bogdanm 0:9b334a45a8ff 536 * @retval HAL status
bogdanm 0:9b334a45a8ff 537 */
bogdanm 0:9b334a45a8ff 538 HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
bogdanm 0:9b334a45a8ff 539 {
bogdanm 0:9b334a45a8ff 540 /* Check the SRAM controller state */
bogdanm 0:9b334a45a8ff 541 if(hsram->State == HAL_SRAM_STATE_PROTECTED)
bogdanm 0:9b334a45a8ff 542 {
bogdanm 0:9b334a45a8ff 543 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 544 }
bogdanm 0:9b334a45a8ff 545
bogdanm 0:9b334a45a8ff 546 /* Process Locked */
bogdanm 0:9b334a45a8ff 547 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 548
bogdanm 0:9b334a45a8ff 549 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 550 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 551
bogdanm 0:9b334a45a8ff 552 /* Configure DMA user callbacks */
bogdanm 0:9b334a45a8ff 553 hsram->hdma->XferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
bogdanm 0:9b334a45a8ff 554 hsram->hdma->XferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
bogdanm 0:9b334a45a8ff 555
bogdanm 0:9b334a45a8ff 556 /* Enable the DMA Stream */
bogdanm 0:9b334a45a8ff 557 HAL_DMA_Start_IT(hsram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
bogdanm 0:9b334a45a8ff 558
bogdanm 0:9b334a45a8ff 559 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 560 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 561
bogdanm 0:9b334a45a8ff 562 /* Process unlocked */
bogdanm 0:9b334a45a8ff 563 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 564
bogdanm 0:9b334a45a8ff 565 return HAL_OK;
bogdanm 0:9b334a45a8ff 566 }
bogdanm 0:9b334a45a8ff 567
bogdanm 0:9b334a45a8ff 568 /**
bogdanm 0:9b334a45a8ff 569 * @}
bogdanm 0:9b334a45a8ff 570 */
bogdanm 0:9b334a45a8ff 571
bogdanm 0:9b334a45a8ff 572 /** @defgroup SRAM_Exported_Functions_Group3 Control functions
bogdanm 0:9b334a45a8ff 573 * @brief management functions
bogdanm 0:9b334a45a8ff 574 *
bogdanm 0:9b334a45a8ff 575 @verbatim
bogdanm 0:9b334a45a8ff 576 ==============================================================================
bogdanm 0:9b334a45a8ff 577 ##### SRAM Control functions #####
bogdanm 0:9b334a45a8ff 578 ==============================================================================
bogdanm 0:9b334a45a8ff 579 [..]
bogdanm 0:9b334a45a8ff 580 This subsection provides a set of functions allowing to control dynamically
bogdanm 0:9b334a45a8ff 581 the SRAM interface.
bogdanm 0:9b334a45a8ff 582
bogdanm 0:9b334a45a8ff 583 @endverbatim
bogdanm 0:9b334a45a8ff 584 * @{
bogdanm 0:9b334a45a8ff 585 */
bogdanm 0:9b334a45a8ff 586
bogdanm 0:9b334a45a8ff 587 /**
bogdanm 0:9b334a45a8ff 588 * @brief Enables dynamically SRAM write operation.
bogdanm 0:9b334a45a8ff 589 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 590 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 591 * @retval HAL status
bogdanm 0:9b334a45a8ff 592 */
bogdanm 0:9b334a45a8ff 593 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 594 {
bogdanm 0:9b334a45a8ff 595 /* Process Locked */
bogdanm 0:9b334a45a8ff 596 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 597
bogdanm 0:9b334a45a8ff 598 /* Enable write operation */
bogdanm 0:9b334a45a8ff 599 FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank);
bogdanm 0:9b334a45a8ff 600
bogdanm 0:9b334a45a8ff 601 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 602 hsram->State = HAL_SRAM_STATE_READY;
bogdanm 0:9b334a45a8ff 603
bogdanm 0:9b334a45a8ff 604 /* Process unlocked */
bogdanm 0:9b334a45a8ff 605 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 606
bogdanm 0:9b334a45a8ff 607 return HAL_OK;
bogdanm 0:9b334a45a8ff 608 }
bogdanm 0:9b334a45a8ff 609
bogdanm 0:9b334a45a8ff 610 /**
bogdanm 0:9b334a45a8ff 611 * @brief Disables dynamically SRAM write operation.
bogdanm 0:9b334a45a8ff 612 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 613 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 614 * @retval HAL status
bogdanm 0:9b334a45a8ff 615 */
bogdanm 0:9b334a45a8ff 616 HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 617 {
bogdanm 0:9b334a45a8ff 618 /* Process Locked */
bogdanm 0:9b334a45a8ff 619 __HAL_LOCK(hsram);
bogdanm 0:9b334a45a8ff 620
bogdanm 0:9b334a45a8ff 621 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 622 hsram->State = HAL_SRAM_STATE_BUSY;
bogdanm 0:9b334a45a8ff 623
bogdanm 0:9b334a45a8ff 624 /* Disable write operation */
bogdanm 0:9b334a45a8ff 625 FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank);
bogdanm 0:9b334a45a8ff 626
bogdanm 0:9b334a45a8ff 627 /* Update the SRAM controller state */
bogdanm 0:9b334a45a8ff 628 hsram->State = HAL_SRAM_STATE_PROTECTED;
bogdanm 0:9b334a45a8ff 629
bogdanm 0:9b334a45a8ff 630 /* Process unlocked */
bogdanm 0:9b334a45a8ff 631 __HAL_UNLOCK(hsram);
bogdanm 0:9b334a45a8ff 632
bogdanm 0:9b334a45a8ff 633 return HAL_OK;
bogdanm 0:9b334a45a8ff 634 }
bogdanm 0:9b334a45a8ff 635
bogdanm 0:9b334a45a8ff 636 /**
bogdanm 0:9b334a45a8ff 637 * @}
bogdanm 0:9b334a45a8ff 638 */
bogdanm 0:9b334a45a8ff 639
bogdanm 0:9b334a45a8ff 640 /** @defgroup SRAM_Exported_Functions_Group4 State functions
bogdanm 0:9b334a45a8ff 641 * @brief Peripheral State functions
bogdanm 0:9b334a45a8ff 642 *
bogdanm 0:9b334a45a8ff 643 @verbatim
bogdanm 0:9b334a45a8ff 644 ==============================================================================
bogdanm 0:9b334a45a8ff 645 ##### SRAM State functions #####
bogdanm 0:9b334a45a8ff 646 ==============================================================================
bogdanm 0:9b334a45a8ff 647 [..]
bogdanm 0:9b334a45a8ff 648 This subsection permits to get in run-time the status of the SRAM controller
bogdanm 0:9b334a45a8ff 649 and the data flow.
bogdanm 0:9b334a45a8ff 650
bogdanm 0:9b334a45a8ff 651 @endverbatim
bogdanm 0:9b334a45a8ff 652 * @{
bogdanm 0:9b334a45a8ff 653 */
bogdanm 0:9b334a45a8ff 654
bogdanm 0:9b334a45a8ff 655 /**
bogdanm 0:9b334a45a8ff 656 * @brief Returns the SRAM controller state
bogdanm 0:9b334a45a8ff 657 * @param hsram: pointer to a SRAM_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 658 * the configuration information for SRAM module.
bogdanm 0:9b334a45a8ff 659 * @retval HAL state
bogdanm 0:9b334a45a8ff 660 */
bogdanm 0:9b334a45a8ff 661 HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram)
bogdanm 0:9b334a45a8ff 662 {
bogdanm 0:9b334a45a8ff 663 return hsram->State;
bogdanm 0:9b334a45a8ff 664 }
bogdanm 0:9b334a45a8ff 665 /**
bogdanm 0:9b334a45a8ff 666 * @}
bogdanm 0:9b334a45a8ff 667 */
bogdanm 0:9b334a45a8ff 668
bogdanm 0:9b334a45a8ff 669 /**
bogdanm 0:9b334a45a8ff 670 * @}
bogdanm 0:9b334a45a8ff 671 */
mbed_official 19:112740acecfa 672 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx ||\
mbed_official 19:112740acecfa 673 STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
bogdanm 0:9b334a45a8ff 674 #endif /* HAL_SRAM_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 675 /**
bogdanm 0:9b334a45a8ff 676 * @}
bogdanm 0:9b334a45a8ff 677 */
bogdanm 0:9b334a45a8ff 678
bogdanm 0:9b334a45a8ff 679 /**
bogdanm 0:9b334a45a8ff 680 * @}
bogdanm 0:9b334a45a8ff 681 */
bogdanm 0:9b334a45a8ff 682
bogdanm 0:9b334a45a8ff 683 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/