On Wed, Sep 05, 2018 at 11:01:18AM -0400, Marcus D. Leech wrote: > 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. > > That just means that the implementation of the random function on Windows > is probably rather slow. >
If I may add some comments: We *do* have converters from sc12 to sc16, so I'm not sure what's up with that. If you have a modern computer, 56 Msps isn't considered a massive amount (GNU Radio, for example, should have no issues chomping away that much on a modern PC). I suspect you might have stumbled across some corner-case bug, although it's interesting that we haven't seen this more often. With a single channel, you should be able to go all the way up to 61.44 Msps over USB3. If you do dual-channel full-duplex, the interface between the FX3 and the FPGA can't handle that much data unless you drop down to sc12. -- Martin
signature.asc
Description: PGP signature
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
