Hi,
> From: Christoph Thein
>
> We are using Ubuntu 9.04 with the latest trunk version of gnuradio but don't
> know enough about the OS realtime scheduling issue to explain it. Does
> anybody
> have more knowledge about ubuntu and realtime to explain this behaviour?
>
> Regards,
>
> Han
Hi Matt,
thanks for the advice. We connected the serial port and couldn't observe the
underrun message and we enabled the realtime scheduling but there was no
improvement. Strangely enough after that the program only works without
interrupts if it is started as su in a shell and if this shell
Hi,
> From: Matt Ettus
>
> are you sure you are seeing underruns? Have you connected to the debug
> serial
> port on the USRP2 and seen it send "U"?
>
> Matt
USRP2 has 6 leds. Two of them are ON when every thing is OK. Can you use
one/two of others to indicate over/under run?
Best R
hanwen wrote:
Hi,
We use tx_samples.cc to transmit a file with 16bit-short complex samples
at 10MHz and 20MHz. We use another USRP2 to receive the signal and store
on disk. We observed there are some unexpected gaps in the received
samples. Using usrp2_fft.py with the osiliscope view, we also
Hi,
We use tx_samples.cc to transmit a file with 16bit-short complex samples at
10MHz and 20MHz. We use another USRP2 to receive the signal and store on
disk. We observed there are some unexpected gaps in the received samples.
Using usrp2_fft.py with the osiliscope view, we also observed such kind
