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Returned Value

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Notes/Warnings

  1. FSDev_SD_Card_BSP_Lock() will be called before the driver begins to access the SD/MMC card bus. The application should not use the same bus to access another device until the matching call to FSDev_SD_Card_BSP_Unlock() has been made.
  2. The clock frequency, bus width and timeouts set by the FSDev_SD_Card_BSP_Set####() functions are parameters of the card, not the bus. If multiple cards are located on the same bus, those parameters must be saved (in memory) when set and restored when FSDev_SD_Card_BSP_Lock() is called.