On 09/10/2018 09:37 PM, Mark Wagner wrote:
Thanks, that seems to have worked, but I have one more question. When
I updated the FPGA image I saw this warning several times
[INFO] [MPM.PeriphManager.UDP] No CHDR interfaces found!
Is that abnormal? I don't see it in the example outputs from the guide
-Mark
It think that means that at the time of the update, MPM couldn't find
any interfaces that were capable of carrying sample traffic. Which would
be the case for an update over the RJ-45 interface, with neither of
the SFP interfaces "up".
But perhaps someone from R&D could comment.
On Mon, Sep 10, 2018 at 5:57 PM, Marcus D. Leech via USRP-users
<usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>> wrote:
On 09/10/2018 08:48 PM, Mark Wagner via USRP-users wrote:
Hi all
I've got an N310 USRP which I was trying to update the FPGA
image to. I've got the host computer hooked up to the N310
through an RJ-45 cable going into SFP+0. I followed the
instructions on the Getting Started page and tried to update
using
uhd_image_loader --args "type=n3xx,addr=192.168.10.2,fpga=HG"
but there was some error and now I am unable to talk to the
N310. When I try:
uhd_usrp_probe
I get:
[INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501;
UHD_3.13.0.HEAD-0-g0ddc19e5
Error: LookupError: KeyError: No devices found for ----->
Empty Device Address
And I am similarly unable to ping or send commands to the N310
anymore. Does anyone have an idea how to fix this?
-Mark
Probably need to go back and create a new system image, using the
instructions from:
https://kb.ettus.com/N300/N310_Getting_Started_Guides
<https://kb.ettus.com/N300/N310_Getting_Started_Guides>
That will get you back to a state where you can talk to the device.
I would generally use the RJ-45 port on the N310 for things like
image updates, but it should also work over the SFP+ port.
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--
Mark Wagner
University of California San Diego
Electrical and Computer Engineering
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