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414 lines
13 KiB
414 lines
13 KiB
/** |
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****************************************************************************** |
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* @file stm32l4xx_hal_sd_ex.c |
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* @author MCD Application Team |
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* @brief SD card Extended HAL module driver. |
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* This file provides firmware functions to manage the following |
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* functionalities of the Secure Digital (SD) peripheral: |
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* + Extended features functions |
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* |
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****************************************************************************** |
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* @attention |
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* |
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* Copyright (c) 2017 STMicroelectronics. |
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* All rights reserved. |
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* |
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* This software is licensed under terms that can be found in the LICENSE file |
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* in the root directory of this software component. |
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* If no LICENSE file comes with this software, it is provided AS-IS. |
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* |
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****************************************************************************** |
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@verbatim |
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============================================================================== |
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##### How to use this driver ##### |
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============================================================================== |
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[..] |
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The SD Extension HAL driver can be used as follows: |
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(+) Set card in High Speed mode using HAL_SDEx_HighSpeed() function. |
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(+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_SDEx_ConfigDMAMultiBuffer() function. |
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(+) Start Read and Write for multibuffer mode using HAL_SDEx_ReadBlocksDMAMultiBuffer() and HAL_SDEx_WriteBlocksDMAMultiBuffer() functions. |
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@endverbatim |
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****************************************************************************** |
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*/ |
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/* Includes ------------------------------------------------------------------*/ |
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#include "stm32l4xx_hal.h" |
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#if defined(STM32L4P5xx) || defined(STM32L4Q5xx) || defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx) |
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/** @addtogroup STM32L4xx_HAL_Driver |
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* @{ |
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*/ |
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/** @defgroup SDEx SDEx |
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* @brief SD Extended HAL module driver |
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* @{ |
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*/ |
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#ifdef HAL_SD_MODULE_ENABLED |
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/* Private typedef -----------------------------------------------------------*/ |
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/* Private define ------------------------------------------------------------*/ |
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/* Private macro -------------------------------------------------------------*/ |
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/* Private variables ---------------------------------------------------------*/ |
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/* Private function prototypes -----------------------------------------------*/ |
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/* Private functions ---------------------------------------------------------*/ |
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extern uint32_t SD_HighSpeed(SD_HandleTypeDef *hsd); |
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/* Exported functions --------------------------------------------------------*/ |
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/** @addtogroup SDEx_Exported_Functions |
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* @{ |
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*/ |
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/** @addtogroup SDEx_Exported_Functions_Group1 |
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* @brief High Speed function |
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* |
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@verbatim |
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============================================================================== |
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##### High Speed function ##### |
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============================================================================== |
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[..] |
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This section provides function allowing to configure the card in High Speed mode. |
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@endverbatim |
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* @{ |
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*/ |
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/** |
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* @brief Switches the SD card to High Speed mode. |
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* This API must be used after "Transfer State" |
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* @note This operation should be followed by the configuration |
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* of PLL to have SDMMCCK clock between 50 and 120 MHz |
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* @param hsd SD handle |
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* @retval SD Card error state |
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*/ |
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uint32_t HAL_SDEx_HighSpeed(SD_HandleTypeDef *hsd) |
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{ |
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return SD_HighSpeed (hsd); |
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} |
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/** |
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* @brief Enable/Disable the SD Transceiver 1.8V Mode Callback. |
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* @param status Voltage Switch State |
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* @retval None |
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*/ |
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__weak void HAL_SDEx_DriveTransceiver_1_8V_Callback(FlagStatus status) |
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{ |
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/* Prevent unused argument(s) compilation warning */ |
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UNUSED(status); |
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/* NOTE : This function Should not be modified, when the callback is needed, |
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the HAL_SD_EnableTransciver could be implemented in the user file |
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*/ |
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} |
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/** |
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* @} |
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*/ |
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/** @addtogroup SDEx_Exported_Functions_Group2 |
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* @brief Multibuffer functions |
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* |
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@verbatim |
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============================================================================== |
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##### Multibuffer functions ##### |
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============================================================================== |
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[..] |
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This section provides functions allowing to configure the multibuffer mode and start read and write |
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multibuffer mode for SD HAL driver. |
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@endverbatim |
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* @{ |
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*/ |
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/** |
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* @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA. |
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* @param hsd SD handle |
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* @param pDataBuffer0 Pointer to the buffer0 that will contain/receive the transferred data |
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* @param pDataBuffer1 Pointer to the buffer1 that will contain/receive the transferred data |
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* @param BufferSize Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size. |
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* @retval HAL status |
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*/ |
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HAL_StatusTypeDef HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t *pDataBuffer0, uint32_t *pDataBuffer1, uint32_t BufferSize) |
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{ |
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if(hsd->State == HAL_SD_STATE_READY) |
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{ |
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hsd->Instance->IDMABASE0= (uint32_t) pDataBuffer0; |
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hsd->Instance->IDMABASE1= (uint32_t) pDataBuffer1; |
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hsd->Instance->IDMABSIZE= (uint32_t) (BLOCKSIZE * BufferSize); |
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return HAL_OK; |
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} |
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else |
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{ |
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return HAL_BUSY; |
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} |
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} |
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/** |
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* @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1. |
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* Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function. |
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* @param hsd SD handle |
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* @param BlockAdd Block Address from where data is to be read |
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* @param NumberOfBlocks Total number of blocks to read |
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* @retval HAL status |
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*/ |
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HAL_StatusTypeDef HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
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{ |
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SDMMC_DataInitTypeDef config; |
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uint32_t errorstate; |
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uint32_t DmaBase0_reg, DmaBase1_reg; |
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uint32_t add = BlockAdd; |
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if(hsd->State == HAL_SD_STATE_READY) |
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{ |
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if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr)) |
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{ |
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hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
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return HAL_ERROR; |
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} |
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DmaBase0_reg = hsd->Instance->IDMABASE0; |
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DmaBase1_reg = hsd->Instance->IDMABASE1; |
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if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
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{ |
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hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
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return HAL_ERROR; |
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} |
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/* Initialize data control register */ |
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hsd->Instance->DCTRL = 0; |
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/* Clear old Flags*/ |
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__HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_DATA_FLAGS); |
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hsd->ErrorCode = HAL_SD_ERROR_NONE; |
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hsd->State = HAL_SD_STATE_BUSY; |
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if(hsd->SdCard.CardType != CARD_SDHC_SDXC) |
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{ |
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add *= 512U; |
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} |
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/* Configure the SD DPSM (Data Path State Machine) */ |
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config.DataTimeOut = SDMMC_DATATIMEOUT; |
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config.DataLength = BLOCKSIZE * NumberOfBlocks; |
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config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B; |
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config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC; |
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config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK; |
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config.DPSM = SDMMC_DPSM_DISABLE; |
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(void)SDMMC_ConfigData(hsd->Instance, &config); |
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hsd->Instance->DCTRL |= SDMMC_DCTRL_FIFORST; |
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__SDMMC_CMDTRANS_ENABLE( hsd->Instance); |
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hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
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/* Read Blocks in DMA mode */ |
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hsd->Context = (SD_CONTEXT_READ_MULTIPLE_BLOCK | SD_CONTEXT_DMA); |
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/* Read Multi Block command */ |
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errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add); |
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if(errorstate != HAL_SD_ERROR_NONE) |
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{ |
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hsd->State = HAL_SD_STATE_READY; |
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hsd->ErrorCode |= errorstate; |
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return HAL_ERROR; |
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} |
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__HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC)); |
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return HAL_OK; |
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} |
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else |
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{ |
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return HAL_BUSY; |
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} |
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} |
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/** |
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* @brief Write block(s) to a specified address in a card. The transferred Data are stored in Buffer0 and Buffer1. |
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* Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function. |
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* @param hsd SD handle |
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* @param BlockAdd Block Address from where data is to be read |
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* @param NumberOfBlocks Total number of blocks to read |
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* @retval HAL status |
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*/ |
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HAL_StatusTypeDef HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
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{ |
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SDMMC_DataInitTypeDef config; |
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uint32_t errorstate; |
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uint32_t DmaBase0_reg, DmaBase1_reg; |
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uint32_t add = BlockAdd; |
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if(hsd->State == HAL_SD_STATE_READY) |
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{ |
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if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr)) |
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{ |
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hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
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return HAL_ERROR; |
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} |
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DmaBase0_reg = hsd->Instance->IDMABASE0; |
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DmaBase1_reg = hsd->Instance->IDMABASE1; |
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if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
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{ |
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hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
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return HAL_ERROR; |
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} |
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/* Initialize data control register */ |
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hsd->Instance->DCTRL = 0; |
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hsd->ErrorCode = HAL_SD_ERROR_NONE; |
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hsd->State = HAL_SD_STATE_BUSY; |
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if(hsd->SdCard.CardType != CARD_SDHC_SDXC) |
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{ |
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add *= 512U; |
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} |
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/* Configure the SD DPSM (Data Path State Machine) */ |
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config.DataTimeOut = SDMMC_DATATIMEOUT; |
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config.DataLength = BLOCKSIZE * NumberOfBlocks; |
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config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B; |
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config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD; |
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config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK; |
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config.DPSM = SDMMC_DPSM_DISABLE; |
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(void)SDMMC_ConfigData(hsd->Instance, &config); |
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__SDMMC_CMDTRANS_ENABLE( hsd->Instance); |
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hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
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/* Write Blocks in DMA mode */ |
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hsd->Context = (SD_CONTEXT_WRITE_MULTIPLE_BLOCK | SD_CONTEXT_DMA); |
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/* Write Multi Block command */ |
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errorstate = SDMMC_CmdWriteMultiBlock(hsd->Instance, add); |
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if(errorstate != HAL_SD_ERROR_NONE) |
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{ |
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hsd->State = HAL_SD_STATE_READY; |
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hsd->ErrorCode |= errorstate; |
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return HAL_ERROR; |
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} |
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__HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC)); |
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return HAL_OK; |
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} |
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else |
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{ |
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return HAL_BUSY; |
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} |
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} |
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/** |
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* @brief Change the DMA Buffer0 or Buffer1 address on the fly. |
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* @param hsd pointer to a SD_HandleTypeDef structure. |
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* @param Buffer the buffer to be changed, This parameter can be one of |
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* the following values: SD_DMA_BUFFER0 or SD_DMA_BUFFER1 |
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* @param pDataBuffer The new address |
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* @note The BUFFER0 address can be changed only when the current transfer use |
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* BUFFER1 and the BUFFER1 address can be changed only when the current |
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* transfer use BUFFER0. |
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* @retval HAL status |
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*/ |
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HAL_StatusTypeDef HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef *hsd, HAL_SDEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer) |
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{ |
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if(Buffer == SD_DMA_BUFFER0) |
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{ |
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/* change the buffer0 address */ |
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hsd->Instance->IDMABASE0 = (uint32_t)pDataBuffer; |
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} |
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else |
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{ |
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/* change the memory1 address */ |
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hsd->Instance->IDMABASE1 = (uint32_t)pDataBuffer; |
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} |
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return HAL_OK; |
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} |
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/** |
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* @brief Read DMA Buffer 0 Transfer completed callbacks |
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* @param hsd: SD handle |
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* @retval None |
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*/ |
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__weak void HAL_SDEx_Read_DMADoubleBuffer0CpltCallback(SD_HandleTypeDef *hsd) |
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{ |
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/* Prevent unused argument(s) compilation warning */ |
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UNUSED(hsd); |
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/* NOTE : This function should not be modified, when the callback is needed, |
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the HAL_SDEx_Read_DMADoubleBuffer0CpltCallback can be implemented in the user file |
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*/ |
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} |
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/** |
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* @brief Read DMA Buffer 1 Transfer completed callbacks |
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* @param hsd: SD handle |
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* @retval None |
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*/ |
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__weak void HAL_SDEx_Read_DMADoubleBuffer1CpltCallback(SD_HandleTypeDef *hsd) |
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{ |
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/* Prevent unused argument(s) compilation warning */ |
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UNUSED(hsd); |
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/* NOTE : This function should not be modified, when the callback is needed, |
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the HAL_SDEx_Read_DMADoubleBuffer1CpltCallback can be implemented in the user file |
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*/ |
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} |
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/** |
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* @brief Write DMA Buffer 0 Transfer completed callbacks |
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* @param hsd: SD handle |
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* @retval None |
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*/ |
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__weak void HAL_SDEx_Write_DMADoubleBuffer0CpltCallback(SD_HandleTypeDef *hsd) |
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{ |
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/* Prevent unused argument(s) compilation warning */ |
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UNUSED(hsd); |
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/* NOTE : This function should not be modified, when the callback is needed, |
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the HAL_SDEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file |
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*/ |
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} |
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/** |
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* @brief Write DMA Buffer 1 Transfer completed callbacks |
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* @param hsd: SD handle |
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* @retval None |
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*/ |
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__weak void HAL_SDEx_Write_DMADoubleBuffer1CpltCallback(SD_HandleTypeDef *hsd) |
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{ |
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/* Prevent unused argument(s) compilation warning */ |
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UNUSED(hsd); |
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/* NOTE : This function should not be modified, when the callback is needed, |
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the HAL_SDEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file |
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*/ |
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} |
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/** |
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* @} |
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*/ |
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/** |
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* @} |
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*/ |
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#endif /* HAL_SD_MODULE_ENABLED */ |
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/** |
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* @} |
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*/ |
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/** |
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* @} |
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*/ |
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#endif /* STM32L4P5xx || STM32L4Q5xx || STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx */
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