AnsweredAssumed Answered

SD Card Access while in USB MSC mode

Question asked by holey.gaurav on Jun 18, 2014
Latest reply on Jun 24, 2014 by Clive One
Dear All,

I am
implementing a solution where I have to read file when device is in usb mass storage mode and after reading I have to delete the file.
I have implemented USB Mass Storage device based on STM32F105 and I am using emfile - emb OS from segger.

When device in MSC, I am stuck at SD_Readbyte flag. My doubts are :

1. Is USB blocking access to SD Card/SPI lock?
2. At what point I should be able to access the SD Card?
    - After completion of USB MSC Initialization?

Please revert ASAP.

Thanking you in anticipation.

Best Regards,