Re: [USRP-users] RFNoC Radio with 2 outputs.

2017-12-15 Thread Mark Luscombe via USRP-users
P.S. In case it helps here is the uhd_usrp_probe output. _ / | Device: X-Series Device | _ |/ | | Mboard: X310 | | revision: 11 | | revision_compat: 7 | | pr

[USRP-users] USRP X300: Synchronization of TX and RX, Frequency offset around 100 mHz

2017-12-15 Thread Deepak Vasisht via USRP-users
Hi everyone, I am new to the list. So, apologies if my email violates any mailing-list etiquettes. I am trying to synchronize a Transmit-Receive pair on the USRP X300. I observe that the TX and RX have a phase offset of around 100 mHz even if I am using an external clock to synchronize them. I

Re: [USRP-users] rfnoc loopback

2017-12-15 Thread John Medrano via USRP-users
Thank you for the code. I have an E310 and we are using latest version of RFNOC Development and these functions return an error: stream_cmd=uhd.stream_cmd_t(uhd.stream_cmd_t.STREAM_MODE_START_CONTINUOUS) #self.uhd_rfnoc_streamer_radio_0.issue_stream_cmd(stream_cmd) self.uhd_rfnoc_

Re: [USRP-users] rfnoc loopback

2017-12-15 Thread Nick Foster via USRP-users
You have neglected to also modify gr-ettus to add these to the API. Nick On Fri, Dec 15, 2017 at 11:18 AM John Medrano wrote: > Thank you for the code. > > I have an E310 and we are using latest version of RFNOC Development and > these functions return an error: > > > stream_cmd=uhd.stream_cmd_

[USRP-users] [RFNOC] [E310]: Runtime Error: On node 0/FIFO_0 when attempting to run "rx_samples_to_file" example

2017-12-15 Thread Adam Kurisko via USRP-users
Hi there, I am attempting to set up UHD with RFNOC to cross compile on my E310 sg1, where I ran into a bit of an issue while trying to run the example files. I followed this guide to setup the environment: https://kb.ettus.com/Software_Development_on_the_E3xx_USRP_-_Building_RFNoC_UHD_/_GNU_R

Re: [USRP-users] [RFNOC] [E310]: Runtime Error: On node 0/FIFO_0 when attempting to run "rx_samples_to_file" example

2017-12-15 Thread Nate Temple via USRP-users
Hi Adam, This is a known bug that we are tracking on our internal issue tracker. Can you please try building with these commits: https://github.com/EttusResearch/gr-ettus/commit/30302780a44f3f0b146e9b81f88e70c9d983f559 https://github.com/EttusResearch/uhd/commit/12a34d6ef6b9666e29a23039291138f

[USRP-users] Tx and Rx delay within USRP motherboard and daughterboard

2017-12-15 Thread hanwen via USRP-users
Hi, I did a test to figure out how much delay is within the hardware (FPGA DUC/DDC, ADC/DAC, mixer, filters and amplifiers, etc.) In the test using UHD at host side, signal transmission is scheduled at t0 and received at t0 + T. The receiving synchronization is based on cross-correlation which sh

Re: [USRP-users] [RFNOC] [E310]: Runtime Error: On node 0/FIFO_0 when attempting to run "rx_samples_to_file" example

2017-12-15 Thread Adam Kurisko via USRP-users
Hi Nate, Unfortunately, I still received the same fatal error with that commit. Is there anything else that might be causing this error? Also I used 'git reset --hard 12a34d6ef6b9666e29a23039291138f989c7c2ce' to retrieve the commit. Am I doing that correctly? Also here is the output fr