SV: [Discuss-gnuradio] GRC + N210 + RFX2200 + UHD not working

[John Rohde]

Just a thought: I see the same warnings, when I "forget" to run grc with 
correct priviliges (sudo).

John
________________________________________
Fra: address@hidden address@hidden På vegne af Phelps Williams 
address@hidden
Sendt: 25. februar 2011 06:43
Til: address@hidden
Emne: [Discuss-gnuradio] GRC + N210 + RFX2200 + UHD not working

I'm using grc to generate some extremely simple flowgraphs but I'm seeing very 
odd performance.  Any idea why I can't seem to get this combination to work?  I 
have had success with a GRC + USRP2 + WBX + UHD, anybody know why I'm having 
issues here?

When I create a flowgraph directly to a null sink (null.png) I receive the 
following error:

Generating: "/home/pwilliams/gnuradio_test/video_tx/top_block.py"

Executing: "/home/pwilliams/gnuradio_test/video_tx/top_block.py"

linux; GNU C++ version 4.4.1; Boost_103800; UHD_002.20110219191607.c912463

Current recv sock buff size: 50000000 bytes

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.
mboard0 MIMO master

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.
UHD source block got error code 0x1
gr_block_executor: source <gr_block uhd single_usrp source (2)> produced no 
output.  We're marking it DONE.



When I create a flowgraph directly to a fftp sink (fft.png) it just silently 
exits with no errors:


Generating: "/home/pwilliams/gnuradio_test/video_tx/top_block.py"

Executing: "/home/pwilliams/gnuradio_test/video_tx/top_block.py"

linux; GNU C++ version 4.4.1; Boost_103800; UHD_002.20110219191607.c912463

Current recv sock buff size: 50000000 bytes

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.
mboard0 MIMO master

Warning:
    error in pthread_setschedparam
    Failed to set thread priority 0.5 (realtime):
    Performance may be negatively affected.
    See the general application notes.

>>> Done