Thanks again Marcus,
Just to be clear, when you say I can stream at 56MS/s on a single channel,
is it in sc16, sc12 or sc8?
I tried on a different machine, with i7-8550U and 8 or 16GB of RAM.
On Windows, I'm getting the same as before, ie lots of overflows, with
rx_samples_to_file.exe.
On Linux (from the Gnu Radio Live Environment), I installed UHD v3.13.0.1,
With rx_samples_to_file, I still can't choose sc12:
Error: LookupError: KeyError: Cannot find a conversion routine for
> conversion ID
> Input format: sc12_item32_le
> Num inputs: 1
> Output format: sc16
> Num outputs: 1
What does that mean exactly? The B210 can send the data over USB in sc12,
but then UHD doesn't have a method to convert to sc16?
Is this a limitation to rx_samples_to_file, or I'll get the same error if I
make my own C++ program?
I also tried benchmark_rate. In random mode, I have no overflow in sc8, but
in sc16 I have lots of overflows and error messages. Without the random
mode, I can go up to 36MS/s in sc16, and 56MS/s in sc12! So for some reason
it seems I can use sc12 with benchmark_rate but not rx_samples_to_file. I'm
a bit loss.
On Wed, Sep 5, 2018 at 3:09 AM Martin Braun via USRP-users <
usrp-users@lists.ettus.com> wrote:
> On 09/03/2018 07:50 PM, Marcus D. Leech via USRP-users wrote:
> > On 09/03/2018 12:15 AM, Marcus D. Leech via USRP-users wrote:
> >> On 09/03/2018 12:11 AM, RizThon wrote:
> >>> Thanks, I'll try to run it on some intel hardware ("Ettus Research
> >>> recommends using the Intel Series 7, 8, and 9 USB controllers.") as
> >>> well as on Linux.
> >>>
> >>> Concerning my question on SC12, namely which UHD version can I use,
> >>> does anyone know?
> >> SC12, SC16, SC8 should all work at least up to 3.10 or so. I haven't
> >> tried very-latest-master in the lab, but I'll check on it tomorrow.
> >> R&D at Ettus are out until Tuesday.
> >>
> > I can report that I ran into NO issues with SC12 at the max rate of my
> > USB 2.0 connection (10e6 SPS) with:
>
> Marcus, thanks for running these tests. We fixed a bunch of sc12-related
> issues in the 3.13 release.
>
> -- M
>
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