hello my best friends!
I don't have atmel at91sam7S_EK, but I implement a project with at91sam7s256 with an external data flash AT45DB161, I want to implement the code that atmel has provided for composite hid+msd usb.
I downloaded it and used KEIL version of it,but when I program the code on the chip, the computer can't recognize it and send the unknown device error.

another problem is that when I use only atmel usb MSD code to implement only the MSD device, it computer don't recognize it and sends the unknown device error.

I only could implement the usbHID and usbCDC individualy on my chip.

so my problem is that I couldn't implement the USBMSD on the chip, and in advance I couldn't implement USB composite HID+MSD on this chip,
please help me!
thanks.