Re: [Discuss-gnuradio] No Signal from XCVR2450 using usrp2_fft.py

[Matt Ettus]

Thomas Graf wrote:
> Hi Matt,
>
>   
> > I have not gotten the xcvr2450 driver ported the USRP2 yet.  As of now
> > all daughterboards except for the DBSRX and XCVR2450 are supported. 
> > Those last 2 will be supported soon.
> >     
>
> Because I would really need this working soon I began to port that
> myself. So far no success yet. I get it discovered now (db 0x61).
> I get the debugging over the UART. Unfortunately I don't find the
> schematic of the XCVR2450. Is it somewhere available as PDF?
> I'm already reading the Maxim's data sheet.
> If "soon" means in the next days i would wait ;)
>   

It will be a little while yet, since there are other things on the list 
of todos...

> I tried to use another SD-Card, but it didn't work. Only with the
> original SD-Card is working. Is there some other brand which is known to
> be working with the USRP2? I'm just afraid I might destroy the card
> always keeping re-flashing the firmware.
>   

Many SD cards require a 3.3V interface and we use 2.5V.  The card we 
supply is known to work, as are most from that company, Patriot.  You 
are unlikely to hurt the card by reflashing it a lot.  They are 
specified for thousands of cycles.

Matt