Re: [USRP-users] Ettus x310 shutoff delay when using low sample rate

2018-11-09 Thread Michael West via USRP-users
The delay is from the time it takes to drain the DMA FIFO. The DMA FIFO default size is 32 MB. It can be controlled through the property tree or, if using RFNoC, through the DMA FIFO block control. The time to drain is a simple function of size and sample rate. We have been making improvements

Re: [USRP-users] N310 time offset between TX RF Outputs

2018-11-09 Thread Serge Malo via USRP-users
Hi all, I have made another test today, I want to report the results here. *Issue #1* I have modified the tx_timed_samples example, simply such that it transmits on both channels of the X300. Using a frequency of 1.57542GHz for both channels, I was able to measure on a scope a time offset of

Re: [USRP-users] Test clock syncronization

2018-11-09 Thread Marcus D. Leech via USRP-users
On 11/09/2018 11:13 AM, Sneha vasan via USRP-users wrote: I am currently trying to check synchronization of usrp b210 device using octoclock. So when I am trying to execute ./test_clock_synch which is included in examples, I am seeing the following error, why it is not able to detect

[USRP-users] Test clock syncronization

2018-11-09 Thread Sneha vasan via USRP-users
I am currently trying to check synchronization of usrp b210 device using octoclock. So when I am trying to execute ./test_clock_synch which is included in examples, I am seeing the following error, why it is not able to detect device? Can anybody tell me how I can do this??

Re: [USRP-users] 2x N200 GPSDO PPS relative drift

2018-11-09 Thread Robin Coxe via USRP-users
Hi Stephan. Your issue looks similar to one that has been previously reported. The Hardware Sustaining Engineering team is currently investigating. Would it be possible for you to try powering the GPSDO module from a lab supply instead of plugging it in to the N210 motherboard and checking if

Re: [USRP-users] Reusing UHD transport to send signal samples between processes

2018-11-09 Thread Piotr Krysik via USRP-users
Hi Keith, If I manage to make it anything more than just a cool idea, the code definitely will be available publicly. Best Regards, Piotr Krysik W dniu 08.11.2018 o 17:18, Keith k pisze: > Hello Piotr > > I can't answer your question, but I'm wondering if you plan to make > this project open