Thanks Marcus,
Sorry,, I know this isn't the place, but when i check out a version I
get "detached head...".
I also don't want to check anything back in, do I ignore this (I've
never understood what detached head means, even after looking it up!).
Cheers,
Dave
On 10/09/2020 16:43, Marcus D. Leech via USRP-users wrote:
On 09/10/2020 08:55 AM, David Evans via USRP-users wrote:
Hi,
I have just installed the latest "master" branch of UHD (4.0.0.0).
If an overrun occurs during sampling, sampling does not continue
thereafter.
I noticed this with uhd_fft, which hangs with rates over 8MHz, and
also rx_samples_to_file:
./rx_samples_to_file --freq 900000000 --rate 40000000
Creating the usrp device with: ...
[INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100;
UHD_4.0.0.0-34-g2655b0aa
[INFO] [B200] Detected Device: B200mini
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B200mini
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX1
Setting RX Rate: 40.000000 Msps...
[INFO] [B200] Asking for clock rate 40.000000 MHz...
[INFO] [B200] Actually got clock rate 40.000000 MHz.
Actual RX Rate: 40.000000 Msps...
Setting RX Freq: 900.000000 MHz...
Setting RX LO Offset: 0.000000 MHz...
Actual RX Freq: 900.000000 MHz...
Waiting for "lo_locked": ++++++++++ locked.
Press Ctrl + C to stop streaming...
OGot an overflow indication. Please consider the following:
Your write medium must sustain a rate of 160.000000MB/s.
Dropped samples will not be written to the file.
Please modify this example for your purposes.
This message will not appear again.
*Timeout while streaming*
Done!
Any ideas please?
Should I be using the master branch, if not how do I checkout a
stable branch ?
Thanks,
Dave
You can get a list of tagged versions using:
git tag
Try again with:
git checkout v3.15.0.0
Sometimes when the overruns are persistent and at very high rates, the
software is unable to recover, because so much information has been
dropped, any recovery procedure would be roughly as drastic as
having to re-start.
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