Re: USRP N210 growing latencies

[Sylvain Munaut]

Hi,


> OK I understand that. But is there any solution which permits to reset that 
> growing propagation delay ? How to reset the flowgraph buffers without 
> killing the application and restart it ? Is there any method that permits to 
> purge and resync buffers of the flowgraph ?

The USRP supports timestamps for RX and TX.
So you get tags for when data was received / is supposed to be transmitted.
Using a custom block to modify the RX tags into TX tags ( to change
the RX timestamps to TX timestamps a bit into the future ), you should
be able to achieve a constant controlled latency.

Cheers,

    Sylvain