I’ve finally assembled the USRP few days ago, after being delayed some
The power-on behaviour looks as expected: one led blinks at 3 Hz or so.
The next step is to try out some example, e.g. usrp_benchmark_usb.py or
Whatever the test I try, I can see that blinking led is switched of for
a couple seconds, then it blinks at lower
rate, and another led near to it turns on (don’t remember which is D402
On console, i get this kind of error:
usb_control_msg failed: error sending control message: Connection timed
usrp: failed to load fpga bitstream
Traceback (most recent call last):
File “./usrp_benchmark_usb.py”, line 106, in ?
main ( )
File “./usrp_benchmark_usb.py”, line 96, in main
ok=run_test (rate, verbose)
File “./usrp_benchmark_usb.py”, line 63, in run_test
line 230, in init
line 940, in sink_s
RuntimeError: can’t open usrp1
I’m using the latest svn checked-out source code.
I’m almost convinced that the problem is in the USB2 driver used by
gnuradio to control the USRP (ehci-hcd?).
I have 2 questions:
- What do you suggest to use to investigate and troubleshoot such USB2
problem on Fedora 9?
- What does the second led turning on mean?
t.i.a. for help.
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