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mbed library sources. Supersedes mbed-src.

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targets/TARGET_STM/TARGET_STM32H7/device/stm32h7xx_hal_mmc_ex.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 189:f392fc9709a3 1 /**
AnnaBridge 189:f392fc9709a3 2 ******************************************************************************
AnnaBridge 189:f392fc9709a3 3 * @file stm32h7xx_hal_mmc_ex.c
AnnaBridge 189:f392fc9709a3 4 * @author MCD Application Team
AnnaBridge 189:f392fc9709a3 5 * @brief MMC card Extended HAL module driver.
AnnaBridge 189:f392fc9709a3 6 * This file provides firmware functions to manage the following
AnnaBridge 189:f392fc9709a3 7 * functionalities of the Secure Digital (MMC) peripheral:
AnnaBridge 189:f392fc9709a3 8 * + Extended features functions
AnnaBridge 189:f392fc9709a3 9 *
AnnaBridge 189:f392fc9709a3 10 @verbatim
AnnaBridge 189:f392fc9709a3 11 ==============================================================================
AnnaBridge 189:f392fc9709a3 12 ##### How to use this driver #####
AnnaBridge 189:f392fc9709a3 13 ==============================================================================
AnnaBridge 189:f392fc9709a3 14 [..]
AnnaBridge 189:f392fc9709a3 15 The MMC Extension HAL driver can be used as follows:
AnnaBridge 189:f392fc9709a3 16 (+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_MMCEx_ConfigDMAMultiBuffer() function.
AnnaBridge 189:f392fc9709a3 17
AnnaBridge 189:f392fc9709a3 18 (+) Start Read and Write for multibuffer mode using HAL_MMCEx_ReadBlocksDMAMultiBuffer() and HAL_MMCEx_WriteBlocksDMAMultiBuffer() functions.
AnnaBridge 189:f392fc9709a3 19
AnnaBridge 189:f392fc9709a3 20 @endverbatim
AnnaBridge 189:f392fc9709a3 21 ******************************************************************************
AnnaBridge 189:f392fc9709a3 22 * @attention
AnnaBridge 189:f392fc9709a3 23 *
AnnaBridge 189:f392fc9709a3 24 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
AnnaBridge 189:f392fc9709a3 25 *
AnnaBridge 189:f392fc9709a3 26 * This software component is licensed by ST under BSD 3-Clause license,
AnnaBridge 189:f392fc9709a3 27 * the "License"; You may not use this file except in compliance with the
AnnaBridge 189:f392fc9709a3 28 * License. You may obtain a copy of the License at:
AnnaBridge 189:f392fc9709a3 29 * opensource.org/licenses/BSD-3-Clause
AnnaBridge 189:f392fc9709a3 30 *
AnnaBridge 189:f392fc9709a3 31 ******************************************************************************
AnnaBridge 189:f392fc9709a3 32 */
AnnaBridge 189:f392fc9709a3 33
AnnaBridge 189:f392fc9709a3 34 /* Includes ------------------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 35 #include "stm32h7xx_hal.h"
AnnaBridge 189:f392fc9709a3 36
AnnaBridge 189:f392fc9709a3 37 /** @addtogroup STM32H7xx_HAL_Driver
AnnaBridge 189:f392fc9709a3 38 * @{
AnnaBridge 189:f392fc9709a3 39 */
AnnaBridge 189:f392fc9709a3 40
AnnaBridge 189:f392fc9709a3 41 /** @defgroup MMCEx MMCEx
AnnaBridge 189:f392fc9709a3 42 * @brief MMC Extended HAL module driver
AnnaBridge 189:f392fc9709a3 43 * @{
AnnaBridge 189:f392fc9709a3 44 */
AnnaBridge 189:f392fc9709a3 45
AnnaBridge 189:f392fc9709a3 46 #ifdef HAL_MMC_MODULE_ENABLED
AnnaBridge 189:f392fc9709a3 47
AnnaBridge 189:f392fc9709a3 48 /* Private typedef -----------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 49 /* Private define ------------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 50 /* Private macro -------------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 51 /* Private variables ---------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 52 /* Private function prototypes -----------------------------------------------*/
AnnaBridge 189:f392fc9709a3 53 /* Private functions ---------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 54 /* Exported functions --------------------------------------------------------*/
AnnaBridge 189:f392fc9709a3 55 /** @addtogroup MMCEx_Exported_Functions
AnnaBridge 189:f392fc9709a3 56 * @{
AnnaBridge 189:f392fc9709a3 57 */
AnnaBridge 189:f392fc9709a3 58
AnnaBridge 189:f392fc9709a3 59 /** @addtogroup MMCEx_Exported_Functions_Group1
AnnaBridge 189:f392fc9709a3 60 * @brief Multibuffer functions
AnnaBridge 189:f392fc9709a3 61 *
AnnaBridge 189:f392fc9709a3 62 @verbatim
AnnaBridge 189:f392fc9709a3 63 ==============================================================================
AnnaBridge 189:f392fc9709a3 64 ##### Multibuffer functions #####
AnnaBridge 189:f392fc9709a3 65 ==============================================================================
AnnaBridge 189:f392fc9709a3 66 [..]
AnnaBridge 189:f392fc9709a3 67 This section provides functions allowing to configure the multibuffer mode and start read and write
AnnaBridge 189:f392fc9709a3 68 multibuffer mode for MMC HAL driver.
AnnaBridge 189:f392fc9709a3 69
AnnaBridge 189:f392fc9709a3 70 @endverbatim
AnnaBridge 189:f392fc9709a3 71 * @{
AnnaBridge 189:f392fc9709a3 72 */
AnnaBridge 189:f392fc9709a3 73
AnnaBridge 189:f392fc9709a3 74 /**
AnnaBridge 189:f392fc9709a3 75 * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA.
AnnaBridge 189:f392fc9709a3 76 * @param hmmc: MMC handle
AnnaBridge 189:f392fc9709a3 77 * @param pDataBuffer0: Pointer to the buffer0 that will contain/receive the transfered data
AnnaBridge 189:f392fc9709a3 78 * @param pDataBuffer1: Pointer to the buffer1 that will contain/receive the transfered data
AnnaBridge 189:f392fc9709a3 79 * @param BufferSize: Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size.
AnnaBridge 189:f392fc9709a3 80 * @retval HAL status
AnnaBridge 189:f392fc9709a3 81 */
AnnaBridge 189:f392fc9709a3 82 HAL_StatusTypeDef HAL_MMCEx_ConfigDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t * pDataBuffer0, uint32_t * pDataBuffer1, uint32_t BufferSize)
AnnaBridge 189:f392fc9709a3 83 {
AnnaBridge 189:f392fc9709a3 84 if(hmmc->State == HAL_MMC_STATE_READY)
AnnaBridge 189:f392fc9709a3 85 {
AnnaBridge 189:f392fc9709a3 86 hmmc->Instance->IDMABASE0= (uint32_t) pDataBuffer0 ;
AnnaBridge 189:f392fc9709a3 87 hmmc->Instance->IDMABASE1= (uint32_t) pDataBuffer1 ;
AnnaBridge 189:f392fc9709a3 88 hmmc->Instance->IDMABSIZE= (uint32_t) BufferSize;
AnnaBridge 189:f392fc9709a3 89
AnnaBridge 189:f392fc9709a3 90 return HAL_OK;
AnnaBridge 189:f392fc9709a3 91 }
AnnaBridge 189:f392fc9709a3 92 else
AnnaBridge 189:f392fc9709a3 93 {
AnnaBridge 189:f392fc9709a3 94 return HAL_BUSY;
AnnaBridge 189:f392fc9709a3 95 }
AnnaBridge 189:f392fc9709a3 96 }
AnnaBridge 189:f392fc9709a3 97
AnnaBridge 189:f392fc9709a3 98 /**
AnnaBridge 189:f392fc9709a3 99 * @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1.
AnnaBridge 189:f392fc9709a3 100 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_MMCEx_ConfigDMAMultiBuffer before call this function.
AnnaBridge 189:f392fc9709a3 101 * @param hmmc: MMC handle
AnnaBridge 189:f392fc9709a3 102 * @param BlockAdd: Block Address from where data is to be read
AnnaBridge 189:f392fc9709a3 103 * @param NumberOfBlocks: Total number of blocks to read
AnnaBridge 189:f392fc9709a3 104 * @retval HAL status
AnnaBridge 189:f392fc9709a3 105 */
AnnaBridge 189:f392fc9709a3 106 HAL_StatusTypeDef HAL_MMCEx_ReadBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd, uint32_t NumberOfBlocks)
AnnaBridge 189:f392fc9709a3 107 {
AnnaBridge 189:f392fc9709a3 108 SDMMC_DataInitTypeDef config;
AnnaBridge 189:f392fc9709a3 109 uint32_t DmaBase0_reg, DmaBase1_reg;
AnnaBridge 189:f392fc9709a3 110 uint32_t errorstate;
AnnaBridge 189:f392fc9709a3 111 uint32_t add = BlockAdd;
AnnaBridge 189:f392fc9709a3 112
AnnaBridge 189:f392fc9709a3 113 if(hmmc->State == HAL_MMC_STATE_READY)
AnnaBridge 189:f392fc9709a3 114 {
AnnaBridge 189:f392fc9709a3 115 if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
AnnaBridge 189:f392fc9709a3 116 {
AnnaBridge 189:f392fc9709a3 117 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
AnnaBridge 189:f392fc9709a3 118 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 119 }
AnnaBridge 189:f392fc9709a3 120
AnnaBridge 189:f392fc9709a3 121 DmaBase0_reg = hmmc->Instance->IDMABASE0;
AnnaBridge 189:f392fc9709a3 122 DmaBase1_reg = hmmc->Instance->IDMABASE1;
AnnaBridge 189:f392fc9709a3 123 if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
AnnaBridge 189:f392fc9709a3 124 {
AnnaBridge 189:f392fc9709a3 125 hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
AnnaBridge 189:f392fc9709a3 126 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 127 }
AnnaBridge 189:f392fc9709a3 128
AnnaBridge 189:f392fc9709a3 129 /* Initialize data control register */
AnnaBridge 189:f392fc9709a3 130 hmmc->Instance->DCTRL = 0;
AnnaBridge 189:f392fc9709a3 131
AnnaBridge 189:f392fc9709a3 132 hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
AnnaBridge 189:f392fc9709a3 133 hmmc->State = HAL_MMC_STATE_BUSY;
AnnaBridge 189:f392fc9709a3 134
AnnaBridge 189:f392fc9709a3 135 if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD)
AnnaBridge 189:f392fc9709a3 136 {
AnnaBridge 189:f392fc9709a3 137 add *= 512U;
AnnaBridge 189:f392fc9709a3 138 }
AnnaBridge 189:f392fc9709a3 139
AnnaBridge 189:f392fc9709a3 140 /* Configure the MMC DPSM (Data Path State Machine) */
AnnaBridge 189:f392fc9709a3 141 config.DataTimeOut = SDMMC_DATATIMEOUT;
AnnaBridge 189:f392fc9709a3 142 config.DataLength = MMC_BLOCKSIZE * NumberOfBlocks;
AnnaBridge 189:f392fc9709a3 143 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
AnnaBridge 189:f392fc9709a3 144 config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC;
AnnaBridge 189:f392fc9709a3 145 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
AnnaBridge 189:f392fc9709a3 146 config.DPSM = SDMMC_DPSM_DISABLE;
AnnaBridge 189:f392fc9709a3 147 (void)SDMMC_ConfigData(hmmc->Instance, &config);
AnnaBridge 189:f392fc9709a3 148
AnnaBridge 189:f392fc9709a3 149 hmmc->Instance->DCTRL |= SDMMC_DCTRL_FIFORST;
AnnaBridge 189:f392fc9709a3 150
AnnaBridge 189:f392fc9709a3 151 __SDMMC_CMDTRANS_ENABLE( hmmc->Instance);
AnnaBridge 189:f392fc9709a3 152
AnnaBridge 189:f392fc9709a3 153 hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
AnnaBridge 189:f392fc9709a3 154
AnnaBridge 189:f392fc9709a3 155 __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC));
AnnaBridge 189:f392fc9709a3 156
AnnaBridge 189:f392fc9709a3 157 /* Read Blocks in DMA mode */
AnnaBridge 189:f392fc9709a3 158 hmmc->Context = (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
AnnaBridge 189:f392fc9709a3 159
AnnaBridge 189:f392fc9709a3 160 /* Read Multi Block command */
AnnaBridge 189:f392fc9709a3 161 errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, add);
AnnaBridge 189:f392fc9709a3 162 if(errorstate != HAL_MMC_ERROR_NONE)
AnnaBridge 189:f392fc9709a3 163 {
AnnaBridge 189:f392fc9709a3 164 hmmc->State = HAL_MMC_STATE_READY;
AnnaBridge 189:f392fc9709a3 165 hmmc->ErrorCode |= errorstate;
AnnaBridge 189:f392fc9709a3 166 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 167 }
AnnaBridge 189:f392fc9709a3 168
AnnaBridge 189:f392fc9709a3 169 return HAL_OK;
AnnaBridge 189:f392fc9709a3 170 }
AnnaBridge 189:f392fc9709a3 171 else
AnnaBridge 189:f392fc9709a3 172 {
AnnaBridge 189:f392fc9709a3 173 return HAL_BUSY;
AnnaBridge 189:f392fc9709a3 174 }
AnnaBridge 189:f392fc9709a3 175
AnnaBridge 189:f392fc9709a3 176 }
AnnaBridge 189:f392fc9709a3 177
AnnaBridge 189:f392fc9709a3 178 /**
AnnaBridge 189:f392fc9709a3 179 * @brief Write block(s) to a specified address in a card. The transfered Data are stored in Buffer0 and Buffer1.
AnnaBridge 189:f392fc9709a3 180 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_MMCEx_ConfigDMAMultiBuffer before call this function.
AnnaBridge 189:f392fc9709a3 181 * @param hmmc: MMC handle
AnnaBridge 189:f392fc9709a3 182 * @param BlockAdd: Block Address from where data is to be read
AnnaBridge 189:f392fc9709a3 183 * @param NumberOfBlocks: Total number of blocks to read
AnnaBridge 189:f392fc9709a3 184 * @retval HAL status
AnnaBridge 189:f392fc9709a3 185 */
AnnaBridge 189:f392fc9709a3 186 HAL_StatusTypeDef HAL_MMCEx_WriteBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd, uint32_t NumberOfBlocks)
AnnaBridge 189:f392fc9709a3 187 {
AnnaBridge 189:f392fc9709a3 188 SDMMC_DataInitTypeDef config;
AnnaBridge 189:f392fc9709a3 189 uint32_t errorstate;
AnnaBridge 189:f392fc9709a3 190 uint32_t DmaBase0_reg, DmaBase1_reg;
AnnaBridge 189:f392fc9709a3 191 uint32_t add = BlockAdd;
AnnaBridge 189:f392fc9709a3 192
AnnaBridge 189:f392fc9709a3 193 if(hmmc->State == HAL_MMC_STATE_READY)
AnnaBridge 189:f392fc9709a3 194 {
AnnaBridge 189:f392fc9709a3 195 if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
AnnaBridge 189:f392fc9709a3 196 {
AnnaBridge 189:f392fc9709a3 197 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
AnnaBridge 189:f392fc9709a3 198 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 199 }
AnnaBridge 189:f392fc9709a3 200
AnnaBridge 189:f392fc9709a3 201 DmaBase0_reg = hmmc->Instance->IDMABASE0;
AnnaBridge 189:f392fc9709a3 202 DmaBase1_reg = hmmc->Instance->IDMABASE1;
AnnaBridge 189:f392fc9709a3 203 if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
AnnaBridge 189:f392fc9709a3 204 {
AnnaBridge 189:f392fc9709a3 205 hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
AnnaBridge 189:f392fc9709a3 206 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 207 }
AnnaBridge 189:f392fc9709a3 208
AnnaBridge 189:f392fc9709a3 209 /* Initialize data control register */
AnnaBridge 189:f392fc9709a3 210 hmmc->Instance->DCTRL = 0;
AnnaBridge 189:f392fc9709a3 211
AnnaBridge 189:f392fc9709a3 212 hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
AnnaBridge 189:f392fc9709a3 213
AnnaBridge 189:f392fc9709a3 214 hmmc->State = HAL_MMC_STATE_BUSY;
AnnaBridge 189:f392fc9709a3 215
AnnaBridge 189:f392fc9709a3 216 if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD)
AnnaBridge 189:f392fc9709a3 217 {
AnnaBridge 189:f392fc9709a3 218 add *= 512U;
AnnaBridge 189:f392fc9709a3 219 }
AnnaBridge 189:f392fc9709a3 220
AnnaBridge 189:f392fc9709a3 221 /* Configure the MMC DPSM (Data Path State Machine) */
AnnaBridge 189:f392fc9709a3 222 config.DataTimeOut = SDMMC_DATATIMEOUT;
AnnaBridge 189:f392fc9709a3 223 config.DataLength = MMC_BLOCKSIZE * NumberOfBlocks;
AnnaBridge 189:f392fc9709a3 224 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
AnnaBridge 189:f392fc9709a3 225 config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD;
AnnaBridge 189:f392fc9709a3 226 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
AnnaBridge 189:f392fc9709a3 227 config.DPSM = SDMMC_DPSM_DISABLE;
AnnaBridge 189:f392fc9709a3 228 (void)SDMMC_ConfigData(hmmc->Instance, &config);
AnnaBridge 189:f392fc9709a3 229
AnnaBridge 189:f392fc9709a3 230 __SDMMC_CMDTRANS_ENABLE( hmmc->Instance);
AnnaBridge 189:f392fc9709a3 231
AnnaBridge 189:f392fc9709a3 232 hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
AnnaBridge 189:f392fc9709a3 233
AnnaBridge 189:f392fc9709a3 234 __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC));
AnnaBridge 189:f392fc9709a3 235
AnnaBridge 189:f392fc9709a3 236 /* Write Blocks in DMA mode */
AnnaBridge 189:f392fc9709a3 237 hmmc->Context = (MMC_CONTEXT_WRITE_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
AnnaBridge 189:f392fc9709a3 238
AnnaBridge 189:f392fc9709a3 239 /* Write Multi Block command */
AnnaBridge 189:f392fc9709a3 240 errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, add);
AnnaBridge 189:f392fc9709a3 241 if(errorstate != HAL_MMC_ERROR_NONE)
AnnaBridge 189:f392fc9709a3 242 {
AnnaBridge 189:f392fc9709a3 243 hmmc->State = HAL_MMC_STATE_READY;
AnnaBridge 189:f392fc9709a3 244 hmmc->ErrorCode |= errorstate;
AnnaBridge 189:f392fc9709a3 245 return HAL_ERROR;
AnnaBridge 189:f392fc9709a3 246 }
AnnaBridge 189:f392fc9709a3 247
AnnaBridge 189:f392fc9709a3 248 return HAL_OK;
AnnaBridge 189:f392fc9709a3 249 }
AnnaBridge 189:f392fc9709a3 250 else
AnnaBridge 189:f392fc9709a3 251 {
AnnaBridge 189:f392fc9709a3 252 return HAL_BUSY;
AnnaBridge 189:f392fc9709a3 253 }
AnnaBridge 189:f392fc9709a3 254 }
AnnaBridge 189:f392fc9709a3 255
AnnaBridge 189:f392fc9709a3 256
AnnaBridge 189:f392fc9709a3 257 /**
AnnaBridge 189:f392fc9709a3 258 * @brief Change the DMA Buffer0 or Buffer1 address on the fly.
AnnaBridge 189:f392fc9709a3 259 * @param hmmc: pointer to a MMC_HandleTypeDef structure.
AnnaBridge 189:f392fc9709a3 260 * @param Buffer: the buffer to be changed, This parameter can be one of
AnnaBridge 189:f392fc9709a3 261 * the following values: MMC_DMA_BUFFER0 or MMC_DMA_BUFFER1
AnnaBridge 189:f392fc9709a3 262 * @param pDataBuffer: The new address
AnnaBridge 189:f392fc9709a3 263 * @note The BUFFER0 address can be changed only when the current transfer use
AnnaBridge 189:f392fc9709a3 264 * BUFFER1 and the BUFFER1 address can be changed only when the current
AnnaBridge 189:f392fc9709a3 265 * transfer use BUFFER0.
AnnaBridge 189:f392fc9709a3 266 * @retval HAL status
AnnaBridge 189:f392fc9709a3 267 */
AnnaBridge 189:f392fc9709a3 268 HAL_StatusTypeDef HAL_MMCEx_ChangeDMABuffer(MMC_HandleTypeDef *hmmc, HAL_MMCEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer)
AnnaBridge 189:f392fc9709a3 269 {
AnnaBridge 189:f392fc9709a3 270 if(Buffer == MMC_DMA_BUFFER0)
AnnaBridge 189:f392fc9709a3 271 {
AnnaBridge 189:f392fc9709a3 272 /* change the buffer0 address */
AnnaBridge 189:f392fc9709a3 273 hmmc->Instance->IDMABASE0 = (uint32_t)pDataBuffer;
AnnaBridge 189:f392fc9709a3 274 }
AnnaBridge 189:f392fc9709a3 275 else
AnnaBridge 189:f392fc9709a3 276 {
AnnaBridge 189:f392fc9709a3 277 /* change the memory1 address */
AnnaBridge 189:f392fc9709a3 278 hmmc->Instance->IDMABASE1 = (uint32_t)pDataBuffer;
AnnaBridge 189:f392fc9709a3 279 }
AnnaBridge 189:f392fc9709a3 280
AnnaBridge 189:f392fc9709a3 281 return HAL_OK;
AnnaBridge 189:f392fc9709a3 282 }
AnnaBridge 189:f392fc9709a3 283
AnnaBridge 189:f392fc9709a3 284
AnnaBridge 189:f392fc9709a3 285 /**
AnnaBridge 189:f392fc9709a3 286 * @}
AnnaBridge 189:f392fc9709a3 287 */
AnnaBridge 189:f392fc9709a3 288
AnnaBridge 189:f392fc9709a3 289 /**
AnnaBridge 189:f392fc9709a3 290 * @}
AnnaBridge 189:f392fc9709a3 291 */
AnnaBridge 189:f392fc9709a3 292
AnnaBridge 189:f392fc9709a3 293 #endif /* HAL_MMC_MODULE_ENABLED */
AnnaBridge 189:f392fc9709a3 294
AnnaBridge 189:f392fc9709a3 295 /**
AnnaBridge 189:f392fc9709a3 296 * @}
AnnaBridge 189:f392fc9709a3 297 */
AnnaBridge 189:f392fc9709a3 298
AnnaBridge 189:f392fc9709a3 299 /**
AnnaBridge 189:f392fc9709a3 300 * @}
AnnaBridge 189:f392fc9709a3 301 */
AnnaBridge 189:f392fc9709a3 302
AnnaBridge 189:f392fc9709a3 303 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/