Re: [Discuss-gnuradio] About EEPROM and FX2(68013a) USB interface in USRP

[Eric Blossom]

On Mon, Apr 12, 2010 at 04:02:43PM +0800, Liang Xin 梁昕 wrote:
> Hi All
> 
> I am developing a board with gnuradio which is like USRP. It is also use
> FX2LP(CY7C68013a) and AD9862, and I add some surroundings.
> 
> I hope that my board can work well with gnuradio, but it seems like it can
> only support USRP now.  So could you please give me some help, if I want to
> run gnuradio on my board. How should I do with it?
>
> Now I do some test with my board.
> ----------------------------------------------
> 
> When I plug the board to host and run command :  lsusb
> the information list as below:
> 
> Bus 002 Device 003: ID 0b4:8613 Cypress Semiconductor corp. CY7C68013 EZ-USB
> FX2 USB 2.0 Development Kit
> 
> When I plug the USRP it shows
> Bus 002 Device 003: ID 0xfffe:0x0002
> 
>  My board is recognized by PC, but VID and PID is different from USRP.
> What's the problem with it?
> It means the driver(s) is not correct? Or I should change something in the
> source or head file?
> 
> PS: I don't configuration EEPROM with CY7C68013a now. Does this cause some
> issues? Should I leave it blank? If not, what and how should I burn in it?

Your questions reveal that you don't know have much of an
understanding of USB.  If you hope to create a USB based device,
you should probably spend some time studying the USB 2.0 specs.

Eric