Re: [Discuss-gnuradio] OFDM FFT sink issue

[Tom Rondeau]

On Mon, Jan 7, 2013 at 11:17 AM, sivakumar reddy <address@hidden> wrote:

hi friends, good evening

 I am trying to implement OFDM using USRPN210, then i got following warnings and iam not getting anything on output FFT SINK. Please help me

current recv frame size: 1472 bytes

Current send frame size: 1472 bytes
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 30
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 30
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 55
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 56
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 59
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 58
nvfx_screen_get_param:95 - Warning: unknown PIPE_CAP 30

reply me as early as possible. I am waiting for your reply.

Thanks in advance

B. SIVA KUMAR REDDY

 Siva,

When posting a new question on the mailing list, please do not respond to the daily digest. It makes no sense and will confuse anyone searching for similar issues. Make sure your subject line reflect the question or problem you are having (I tired to make something up for you here based on your question).

As to you questions. Those warnings you are seeing are not being generated by GNU Radio. It looks like it's something in your video driver (guessing nVidia from the name).

Have you tried to start simply by just creating an application that displays something on an FFT Sink? Have you used uhd_fft to see if you can properly use the GUI at all?

Tom