/**
* @brief Writes block(s) to a specified address in an SD card, in DMA mode.
* @param pData: Pointer to the buffer that will contain the data to transmit
* @param WriteAddr: Address from where data is to be written
* @param NumOfBlocks: Number of SD blocks to write
* @retval SD status
*/
uint8_t BSP_SD_WriteBlocks_DMA(uint32_t *pData, uint32_t WriteAddr, uint32_t NumOfBlocks)
{
HAL_StatusTypeDef sd_state = HAL_OK;
/* Invalidate the dma rx handle*/
uSdHandle.hdmarx = NULL;
/* Prepare the dma channel for a read operation */
sd_state = SD_DMAConfigTx(&uSdHandle);
if (sd_state == HAL_OK)
{
/* Write block(s) in DMA transfer mode */
sd_state = HAL_SD_WriteBlocks_DMA(&uSdHandle, (uint8_t *)pData, WriteAddr, NumOfBlocks);
}
if (sd_state == HAL_OK)
{
return MSD_OK;
}
else
{
return MSD_ERROR;
}
}
/**
* @brief Writes block(s) to a specified address in an SD card, in DMA mode.
* @param pData: Pointer to the buffer that will contain the data to transmit
* @param WriteAddr: Address from where data is to be written
* @param BlockSize: SD card data block size, that should be 512
* @param NumOfBlocks: Number of SD blocks to write
* @retval SD status
*/
uint8_t BSP_SD_WriteBlocks_DMA(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks)
{
uint8_t state = MSD_OK;
/* Invalidate the dma rx handle*/
uSdHandle.hdmarx = NULL;
/* Prepare the dma channel for a read operation */
state = ((SD_DMAConfigTx(&uSdHandle) == SD_OK) ? MSD_OK : MSD_ERROR);
if(state == MSD_OK)
{
/* Write block(s) in DMA transfer mode */
state = ((HAL_SD_WriteBlocks_DMA(&uSdHandle, pData, WriteAddr, BlockSize, NumOfBlocks) == SD_OK) ? MSD_OK : MSD_ERROR);
/* Wait until transfer is complete */
if(state == MSD_OK)
{
state = ((HAL_SD_CheckWriteOperation(&uSdHandle, (uint32_t)SD_DATATIMEOUT) == SD_OK) ? MSD_OK : MSD_ERROR);
}
}
return state;
}