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Re: [Discuss-gnuradio] uspr2 working intermittently/segmentation fault


From: Jeff Brower
Subject: Re: [Discuss-gnuradio] uspr2 working intermittently/segmentation fault
Date: Wed, 01 Apr 2009 17:53:24 -0600

Marcus-

> > It appears that you do not have the current firmware (and possibly
> > FPGA image) installed on the SD Card.  Please grab the latest from:
> > http://gnuradio.org/releases/usrp2-bin/trunk/
> >
> > Eric
> >
> >
> set-curmudgeon-mode(True)
> 
> Segmentation Fault on the host should *never* be the correct response to
> buggy firmware on the USRP2.  Ever.

Not everything the FPGA does -- register format/contents, FIFO widths, etc -- 
can be
error checked.  There has to be some reasonable expectation on the software 
side. 
The typical method is a "revision id" register, the software checks this and 
adjusts
capabilities.  If the revision is too far behind or doesn't match expectation 
then
the software gives an error message.

-Jeff




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