Ettus E-100(USRP) newbie's Questions

GNU Radio
1

Hello guys,
I have some troubles during installing UHD using Ettus R. E-100.
I basically followed the instruction at
http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki .

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 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.

  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?
    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.
    Thanks.

root@usrp-e1xx:~/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

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

2

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:
http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki/FAQ

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’.

  1. 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:
http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki/FAQ#How-do-I-update-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.

Cheers,
Ben

3

Hi,

We have a requirement for an SDR board, and here is our requirement:
We would want to sample a 70MHz signal and bring it down to Baseband
frequency of 5MHz.
We would want to use our custom signal processing algorithms running on
FPGA accessing eaw I-Q data.
The output of signal processing algorithm needs to be communicated to PC
over TCP/IP for further processing.
Can you please suggest us a suitable combination of Mother and Daughter
boards for the above application.
Assuming we find a suitable board from ettus following are the Questions
we have
Can we add our custom signal processing chain?
If we can add the custom signal processing, how do we get access to the
raw base band I-Q signals?
Can we use standard development tools like Xilinx ISE/XPS/SDK for
development of algorithms and programming the FPGA?.
Is there a provision to program FPGA using standard JTAG, If not what
are alternate ways ?
Thanks

Regards
Ashish Sharma