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

[Phelps Williams]

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

null.png
Description: PNG image

fft.png
Description: PNG image