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STM32F103ZF USB mass storage device problem

Question asked by baglari.bikash on Jan 18, 2013
Hello all,
         I am working on a project where I need to implement USB mass storage device.
 My SD card is communicating with controller on SPI2. As this microcontroller doesn't have the library for SPI so I used library code from STM32F103VBH6(eval board). But after integrating the code with my application I never get the device configured.I am new to USB don't know how to go with it.
My USB is running at 48MHz. and SPI at 400KHz.
D+ is permanently pulled high with 1.5k resistor.
Do I need to make any changes needs to be done in the code.
Please let me know where I am gone wrong.

Thanks  in advance.