On 05/16/2010 04:34 PM, Harley Myler wrote:
Hello all,
I have gnuradio running per se.
I have seen an error "USRP2 failed to enable real-time scheduling".
Does that mean that I have a configuration issue with Ubuntu and
the ethernet system?
The MacPro has two ethernet ports, one is connected to the Internet
(eth0) and the other to the USRP2 (eth1).
I tell each routine to use eth1 (with the -e option) and that seems
to work.
I believe at this juncture that the computer is talking to the
USRP2 and that the WBX is correctly configured. I received the
following output from USRP2 Probe:
After seeing a post by Josh Blum stating that I should run HUD because
he thought that since "the usrp2 gnuradio driver has a linux specific
packet ring, and therefore wont work on a bsd environment." I was
momentarily outraged. Does it not often seem that if you are not
running what (the ubiquitous) "they" are running the answer is always
the same? Go get on a different system is just the easy way out.
Then I thought to myself, "he said that because the underlayment of
OSX is indeed BSD." Of course, I was running BSD when Josh was in
diapers, but that is beside the point. It is also of no consequence
that I exclaimed out loud "THERE IS A GOD!" when Apple announced that
it was moving it's platforms to Unix. I digress...
It was clear I was on my own, so I started searching. I then
discovered "ethtool" and found that it did not want to tell me what
the so-called pause parameters were for eth1. Then I remembered what
Josh had said and thought again to myself, "maybe the problem
<shudder> is on the Mac side". This was heresy, but what the hey it's
only bits and my time, and good grief I have spent enough of the
latter on this game.
Lo and behold, the Mac Network control panel for Ethernet 2 was set to
full-duplex, flow control! Ahhh-Hah! So, switching that allowed the
data to flow, literally. Now I have a USRP2 that is doing as it's
told, life is good. Who said you can't run gnuradio on a VM?
Summary:
• Apple Mac Pro 2 x 3.2 GHz Quad-Core Intel Xeon w/4 GB 800 MHz DDR2
FB-DIMM RAM
• Mac OS X 10.5.8 (Leopard)
• Parallels Desktop 5 for Mac build 5.0.9344/Rev 558741 2/5/2010
• Ubuntu Linux 10.04 LTS (What have you kids done to Unix?!)
• gnuradio whatever...
• USRP2 w/WBX daughterboard
Now the fun can begin. Thanks for all the tips!
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