[Discuss-gnuradio] Re: usb_control_msg error

[Chen Chen]

Hi, Gokceoglu.
I think I am in the troble that you were in.
address@hidden usrp]# python usrp_spectrum_sense.py  2.41G 2.42
G
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usb_control_msg failed: error sending control message: Connection timed 
out
usrp: failed to load fpga bitstream 
/usr/share/usrp/rev4/std_2rxhb_2tx.rbf.
Traceback (most recent call last):
  File "usrp_spectrum_sense.py", line 255, in <module>
    tb = my_top_block()
File "usrp_spectrum_sense.py", line 146, in __init__
    fusb_nblocks=options.fusb_nblocks)
File "/usr/lib/python2.5/site-packages/gnuradio/usrp.py", line 251, in 
__init__
    fpga_filename, firmware_filename)
File "/usr/lib/python2.5/site-packages/gnuradio/usrp1.py", line 1232, in 
source_c
return _usrp1.source_c(*args)
RuntimeError: can't open usrp1

I am using Fedora Core 8.And I am testing usrp on 3 computers.One of our 
computers is already OK.Then I met with this problem.I don't know how to 
deal with it.


CHEN
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