Re: [USRP-users] using GPIO output to trigger external RF switches

2020-01-23 Thread Thomas Harder via USRP-users
erified works using a logic analyzer.  I eventually want to try to create a keying loop, but that may take some FPGA control (?).   Jeff     From: USRP-users on behalf of Thomas Harder via USRP-users Sent: Tuesday, January 14, 2020 5:07 AM To: usrp-users@lists.ettus.com Subject: [USRP-us

Re: [USRP-users] using GPIO output to trigger external RF switches

2020-01-21 Thread Thomas Harder via USRP-users
se as a roadmap for my development) using commands like: ./gpio --dwell 0 --bitbang --ddr 0x00ff --out 0x0055 which I verified works using a logic analyzer.  I eventually want to try to create a keying loop, but that may take some FPGA control (?). Jeff From: USRP-users on behalf of Thomas Har

[USRP-users] using GPIO output to trigger external RF switches

2020-01-14 Thread Thomas Harder via USRP-users
Hi, I am continuously transmitting a waveform with several RF with 200MSPS with my USRP X310 (modified code on the basis of “tx_samples_from_file.cpp” with a waveform in a .dat file). I would like to get a trigger signal from the USRP when it is changing the tx- frequency which I set in my .dat

Re: [USRP-users] transmitting on two channels with replay block

2019-12-13 Thread Thomas Harder via USRP-users
host is not just the host.  The DMA FIFO has a maximum bandwidth of something like 600 MS/s (combination of all inputs and outputs) that precludes streaming 400 MS/s in and out of the block simultaneously.  So, even if the host could keep up, the FIFO could not. Rob   On Mon, Dec 9, 2019 a

Re: [USRP-users] transmitting on two channels with replay block

2019-12-11 Thread Thomas Harder via USRP-users
like 600 MS/s (combination of all inputs and outputs) that precludes streaming 400 MS/s in and out of the block simultaneously.  So, even if the host could keep up, the FIFO could not. Rob On Mon, Dec 9, 2019 at 4:34 AM Thomas Harder via USRP-users wrote: Hi Sam, Thank you for your reply.

Re: [USRP-users] transmitting on two channels with replay block

2019-12-09 Thread Thomas Harder via USRP-users
beginning on the run? Does your duplicated code also use: replay_ctrl->get_record_fullness on both channels before kicking off the stream start? Sam Reiter  Ettus Research On Wed, Dec 4, 2019 at 3:48 AM Thomas Harder via USRP-users wrote: Hello everyone, Is it possible to transmit two

[USRP-users] transmitting on two channels with replay block

2019-12-04 Thread Thomas Harder via USRP-users
Hello everyone, Is it possible to transmit two different waveforms on the two channels of the USRP X310 with the two UBX-160 daughterboards? I want to transmit two different waveforms simultaneous (synchronized ) on the two channels of the USRP with the full sample rate of 200 MS/s. I tried alrea