On 2022-03-01 04:48, Tobias Kronauer wrote:
Dear USRP-Users,
recently, we purchased a USRP X410. I am using the UHD version shipped
with, namely UHD 4.1.0.5-0-g18f5f9a4. Running the default examples, I
receive constantly Overflow-"Errors". Namely, there are two different
notifications, generally speaking, I receive. *I wonder what the
difference is.*
Notification Type 1: A print to stdout, i.e. a `O`, without receiving
an error message from the metadata of the received package.
Notification Type 2: An error message in the metadata of the received
package.
Can you tell me the difference? Scanning the documentation, it is hard
for me to find the actual difference. I wonder when to take it
seriously, i.e. knowing that some samples are actually dropped.
Kind regards,
Tobias
*Barkhausen Institut*
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Looking at the code, the printing of the 'O' can be somewhat
asynchronous to sending packets towards the application--looking in
super_recv_packet_handler.hpp, the
printing of the 'O' (via UHD_LOG_FASTPATH) always seems to correspond
to a packet with ERROR_CODE_OVERFLOW set.
In all cases, 'O' means that samples were lost. You can look at the
timestamps in the packet metadata from _recv() to determine where the
gap is.
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