One of my USRPs has quit showing up as a USB device. I have 2 USRPs.
They are connected to 2 different PCs. I use one more often than the
other. I went to use the other one and ran the usrp_fft.py example
program. I get the error “RuntimeError: Unable to find USRP #0”.
Running the command tail -f /var/log/messages and plugging it in doesn’t
show any message when the USRP connected. When I connect the working
USRP I get the messages:
Oct 31 10:57:04 localhost kernel: usb 6-1: new high speed USB device
using ehci_hcd and address 14
Oct 31 10:57:05 localhost kernel: usb 6-1: configuration #1 chosen from
1 choice
I’ve switched out the USB cables, 6V power supplies, and computers that
were known to be working because they worked on the USRP. I still get
the Unable to find USRP #0 error. The USRP was taken apart and the
circuit board was inspected. No damage was found. The USB connector
had a good electrical connection to the board traces. I believe the USB
controller chip went bad. Is there anything else that could cause this
besides that?
Also I couldn’t find any documentation on the status LEDs. Is there any
you could point me to or explain what different blinking patterns mean.
Keith,
I just had the same thing happen about a month ago. Pretty much the same
error messages you report. I ended up sending it in to Matt. I would
email him directly to see if this is a possibility. On a bright note: I
just got it back and it works great. Matt was very straight about the
possibility that he wouldn’t be able to fix it though. It was the USB
chip controller.
Subject: [Discuss-gnuradio] introduction + question re: optimal demod
developing a system
ultimately, i am planning on sending the data to supercollider via jack,
(FM / WFM have lower noise floors, but seem to require too tight of a
trying to analyze the level of activity
m. cera | c3ra.com
Subject: [Discuss-gnuradio] undefined symbol:
Traceback (most recent call last):
I tried to find answers in the history here but was not successful, can anybody give me a hint? I get the same error with usrp_benchmark_usb.py
Dave Ocame, WS1ETI
Awards Chair
The SETILeague, Inc
Stony Creek Observatory
FN31og
-72.834 longitude
41.272 latitude
Member: The SETILeague, Inc. and,
The Society for Amateur Radio Astronomy (SARA) and,
The Planetary Society
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