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Re: [Discuss-gnuradio] Ettus E-100(USRP) newbie's Questions

From: Ben Hilburn
Subject: Re: [Discuss-gnuradio] Ettus E-100(USRP) newbie's Questions
Date: Thu, 7 Apr 2011 21:35:38 -0400

> Three questions I have:
> 1. Do you know where I can find any document or good website that I can use
> for setting and starting up E-100?

The best resource for getting started, to my knowledge, is the FAQ on the Wiki:

> The linux built in the USRP E100 is too slow that it takes too long time to
> install and try something out for installation.
> Please tell me your experiences of the first time you used E100.

What do you mean by "linux is ... too slow"?  The E100 operates using
an OMAP3 processor - it isn't going to be nearly as fast as a PC, if
that's what you mean.  In terms of embedded devices, I have had no
trouble with the E100 'acting slow'.

> 2. I have tried the example given by the website above
> (./benchmark_rx_rate).
> And I got the error like below. Do you know what the problem or reason of
> it?

I'm not sure about it returning 0xffffffff, but the first thing I
would try is updating the FPGA firmware:

> As another question, is there other way to install UHD with the command,
> opkg? Someone said the command would make easier to set up UHD or E-100.

No, UHD is not currently in the opkg repositories, so this isn't
possible at the moment.


> Thanks.
> ----------
> address@hidden:~/uhd/host/build/examples# ./benchmark_rx_rate
> linux; GNU C++ version 4.5.2 20101204 (prerelease); Boost_104100;
> UHD_003.000.000-3235792
> Creating the usrp device with: ...
> Warning:
>    Ignoring discovered device
>    RuntimeError: Expected module compatibility number 0x1, but got
> 0xffffffff:
>    The module build is not compatible with the host code build.
> Error: LookupError: KeyError: No devices found for ----->
> Empty Device Address
> ----------------
> 3.
> Besides this, I got some error on Gnuradio installation in the built-in
> Linux.
> Is it normal? (I assume it's not)
> Sincerely,
> Sungho Yoon
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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