fix: SD_RX_OVERRUN error when used in multithread RTOS, change to use…

… DMA fix: SD_DMA_RxCplt() dead locked cause by while(hsd->SdTransferCplt == 0) fix: SD_DMA_TxCplt()dead locked cause by while(hsd->SdTransferCplt == 0)
skywolf · Apr 23, 2015 · f4d5409 · f4d5409
1 parent 656de1b
commit f4d5409
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Showing 2 changed files with 8 additions and 8 deletions.
diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c
@@ -2272,9 +2272,9 @@ static void SD_DMA_RxCplt(DMA_HandleTypeDef *hdma)
   hsd->DmaTransferCplt = 1;
 
   /* Wait until SD transfer is complete */
-  while(hsd->SdTransferCplt == 0)
-  {
-  }
+//  while(hsd->SdTransferCplt == 0)
+//  {
+//  }
 
   /* Disable the DMA channel */
   HAL_DMA_Abort(hdma);
@@ -2311,9 +2311,9 @@ static void SD_DMA_TxCplt(DMA_HandleTypeDef *hdma)
   hsd->DmaTransferCplt = 1;
 
   /* Wait until SD transfer is complete */
-  while(hsd->SdTransferCplt == 0)
-  {
-  }
+//  while(hsd->SdTransferCplt == 0)
+//  {
+//  }
 
   /* Disable the DMA channel */
   HAL_DMA_Abort(hdma);

diff --git a/Middlewares/Third_Party/FatFs/src/drivers/sd_diskio.c b/Middlewares/Third_Party/FatFs/src/drivers/sd_diskio.c
@@ -111,7 +111,7 @@ DRESULT SD_read(BYTE *buff, DWORD sector, UINT count)
 {
   DRESULT res = RES_OK;
 
-  if(BSP_SD_ReadBlocks((uint32_t*)buff, 
+  if(BSP_SD_ReadBlocks_DMA((uint32_t*)buff, 
                        (uint64_t) (sector * BLOCK_SIZE), 
                        BLOCK_SIZE, 
                        count) != MSD_OK)
@@ -134,7 +134,7 @@ DRESULT SD_write(const BYTE *buff, DWORD sector, UINT count)
 {
   DRESULT res = RES_OK;
 
-  if(BSP_SD_WriteBlocks((uint32_t*)buff, 
+  if(BSP_SD_WriteBlocks_DMA((uint32_t*)buff, 
                         (uint64_t)(sector * BLOCK_SIZE), 
                         BLOCK_SIZE, count) != MSD_OK)
   {