Thank you. Last question: If the E310 does not support the replay block is it possible in any way to transmit a signal using the device only without streaming it from a host computer? If so how?
Regards, Ofer Saferman On Mon, Sep 14, 2020 at 4:42 PM Rob Kossler <[email protected]> wrote: > Hi Ofer, > Unfortunately, the Replay block is only available for X3x0 and N3x0 > USRPs. This block does not work for the E310 and I have not heard any > plans from Ettus to change this. > > But, if you were using one of these supported USRPs, you would likely just > have one Replay block with multiple ports (that is the way Ettus builds > this block in the N310 default FPGA image). You are correct that you will > effectively have 2 software commands, but if you provide the same "start > time" in both commands (where the start time is slightly in the future from > "now"), the FPGA Radio block will delay streaming until the specified time > is reached such that both streams start simultaneously. > > Rob > > On Sun, Sep 13, 2020 at 11:59 PM Ofer Saferman via USRP-users < > [email protected]> wrote: > >> Hello Rob, >> Thank you for your response. >> I am using USRP E310. >> I am using UHD 3.15. >> >> So, use one replay block with multiple ports? Or use two replay blocks? >> Could you point me to the relevant methods to handle more than one port? >> >> Is there a detailed block diagram of the various modules (classes) or >> some class diagram ? It is hard to navigate between the various blocks and >> know what methods they have only from example code. I looked at the class >> documentation but couldn't find such block diagram. >> >> Regarding synchronization - How does providing the same start time ensure >> synchronization? How can you actually start replay at the same time? I am >> asking because everything is controlled by software so if you have to issue >> two commands in software to start each of the replays they will not be >> synchronized. Which command in code actually starts replay of signal? >> >> Thanks, >> Ofer. >> >> On Mon, Sep 14, 2020 at 5:43 AM Rob Kossler <[email protected]> wrote: >> >>> Hi Ofer, >>> This is possible. The Replay block has multiple ports. You can connect >>> the ports to the various DUC or Radio ports. Which device? Which version >>> of UHD? >>> Yes, you can start them synchronized by providing the same start time to >>> each channel. >>> Rob >>> >>> On Sat, Sep 12, 2020 at 9:42 AM Ofer Saferman via USRP-users < >>> [email protected]> wrote: >>> >>>> Hello, >>>> >>>> I would like to extend the example called >>>> "rfnoc_replay_sample_from_file" to play 2 files, one for Tx1 and one for >>>> Tx2. >>>> I would also like both playbacks to start simultaneously (be >>>> synchronized). Is the synchronization possible? >>>> >>>> What would be the methodology? Creating 2 instances of the replay >>>> blocks each connected to a Tx channel? Are there even more than one replay >>>> blocks available? >>>> >>>> I am walking blind in the woods here and any direction would be helpful. >>>> >>>> Regards, >>>> Ofer Saferman >>>> >>>> -- >>>> This message has been scanned for viruses and >>>> dangerous content by *MailScanner* <http://www.mailscanner.info/>, and >>>> is >>>> believed to be clean. _______________________________________________ >>>> USRP-users mailing list >>>> [email protected] >>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>>> >>> >> -- >> This message has been scanned for viruses and >> dangerous content by *MailScanner* <http://www.mailscanner.info/>, and >> is >> believed to be clean. _______________________________________________ >> USRP-users mailing list >> [email protected] >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
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