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USB mass storage with sd card

Question asked by rakesh rajbhar on Feb 28, 2017

hello all,


i am working on stm32f4-discovery.i want to implement mass storage functionality using usb.i want to share sd cards data to PC using USB.i have implemented code for sd card in 1-bit.but now i want to implement usb part.i have one working code of USB in which my sd card is getting detected but it is asking to format disk.and if i format disk.still my sd card is not formated.shows windows unable to it possible to implement mass storage with sdio 1-bit.please let me know if you know more information.i have attached my code also.


any help will be appreciable.