Trying to run a C++ based flowgraph and occasionally getting a
segfault/coredump. Finally, was able to capture the stack trace, and I am not
sure what to make of it. I //think// that this is all UHD, and not my app, but
I find that hard to believe. Here is that core dump, any thoughts on what
Hi,
To set thread priority, you need to add your user to group usrp...
"D" means dropped packages. You are not reading fast enough.
Since your last run was also at 4 Mhz without any "D"s, it seems your
problem is with your hard disk I/O...
HTH
Nikos
On Wed, Jul 13, 2022 at 1:39 PM Marta Brkić w
...or your locks. Are you locking your reader?
What exactly are you locking?
Nikos
On Thu, Jul 14, 2022 at 4:28 PM Nikos Balkanas wrote:
>
> Hi,
>
> To set thread priority, you need to add your user to group usrp...
> "D" means dropped packages. You are not reading fast enough.
> Since your last
Hi,
If you use SSDs, you are even faster than hard disks:)
RXLO is part of your UBX spec. I don't have one:(
It seems that it has to do something with locking your GPS positions...
A reader lock would be a lock on your reading, and could explain your
"D"s, dropped samples, when you use it.
That "R
On 2022-07-14 08:25, Jason Matusiak wrote:
Trying to run a C++ based flowgraph and occasionally getting a
segfault/coredump. Finally, was able to capture the stack trace, and
I am not sure what to make of it. I //think// that this is all UHD,
and not my app, but I find that hard to believe.
But that application is the USRP block of GNU Radio, so you're at least not the first to
use it :)
Wild stab:
So, this is run on your PC, right; are you sure that the GNU Radio you run was built
against the UHD you're using? (This is basically asking how you installed both GNU Radio
and UHD)
Hello Fan:
USRPs (or any other general-purpose SDRs) do not do the timing recovery for
you. It is designed to transmit arbitrary signals, so it simply does not have
any idea about the "timing" of your signals. The mismatch in the internal
oscillator clocks will cause phase drift over time.
You
On 2022-07-14 18:57, Marcus Müller wrote:
But that application is the USRP block of GNU Radio, so you're at
least not the first to use it :)
Wild stab:
So, this is run on your PC, right; are you sure that the GNU Radio you
run was built against the UHD you're using? (This is basically asking
