Hi Dave,
I have seen the same following an overflow error the code drops in a
time out message and no way to continue.
It is certainly a problem but hopefully it'll be fixed with next releases.
nando
On 9/10/2020 14:55, 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
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