On Wed, Jan 14, 2009 at 04:55:26PM +0100, Alberto Trentadue wrote: > Hello > > I've finally assembled the USRP few days ago, after being delayed some months. > > 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 > usrp_wfm_rcv.py. > 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 and > D403). > > On console, i get this kind of error: > > usb_control_msg failed: error sending control message: Connection timed out > usrp: failed to load fpga bitstream > /opt/gnuradio/share/usrp/rev4/std_2rxhb_2tx.rbf > 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 > usrp_tx=usrp.sink_s(0, tx_interp) > File > "/usr/local/hamradio/gnuradio/lib/python2.5/site-packages/gnuradio/usrp.py", > line 230, in __init__ > fpga_filename, firmware_filename) > File > "/usr/local/hamradio/gnuradio/lib/python2.5/site-packages/gnuradio/usrp1.py", > line 940, in sink_s > return _usrp1.sink_s(*args) > 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: > 1. What do you suggest to use to investigate and troubleshoot such USB2 > problem on Fedora 9? > 2. What does the second led turning on mean? > > t.i.a. for help. > Alberto
Confirm that your computer has an EHCI host controller. Try $ /sbin/lspci | grep -i ehci and/or $ lsmod | grep ehci The USRP only works with an EHCI host controller Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio