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On Thu, May 27, 2021, 01:41 wrote: > Send USRP-users mailing list submissions to > usrp-users@lists.ettus.com > > To subscribe or unsubscribe via email, send a message with subject or > body 'help' to > usrp-users-requ...@lists.ettus.com > > You can reach the person managing the l

[USRP-users] Re: DPDK setup with UHD 4.0

Hi Berkay, I also had a lot of trouble getting DPDK to be recognized. It could be a lot of things, so I can only speculate what the problem is in your case. In my case, I had hyphens instead of underscores in my uhd.conf file. I think I also had some issues with specifying the correct location of

[USRP-users] Re: Timeout while streaming IQ samples to host in RFNOC

Thanks for the solution let me try it. I will give a response to you, tomorrow. Regards Snehasish Get Outlook for iOS From: Jonathon Pendlum Sent: Thursday, May 27, 2021 12:02:04 AM To: Snehasish Kar Cc: Rob Kossler ; usrp-users@lists.ettu

[USRP-users] Re: Timeout while streaming IQ samples to host in RFNOC

Hi Snehasish, With a X310, calling set_rate() on the radio block controller doesn't set the sample rate. You need a DDC block instead, and you'll want to call set_output_rate() to set the desired sample rate. Try the flowgraph Radio RX->DDC->FIR filter->Host and see if that works. I would avoid th

[USRP-users] Re: Timeout while streaming IQ samples to host in RFNOC

No, I tried modifying it. I have attached the same for your reference. Regards Snehasish Sent from Mail for Windows 10 From: Jonathon Pendlum Sent: 26 May 2021 23:36 To: Snehasish Kar

[USRP-users] Re: Timeout while streaming IQ samples to host in RFNOC

Hi Snehasish, Do you get a timeout when connecting the FIR filter via rfnoc_rx_to_file's "--block-id" option? What about the FIFO block? Also, I would highly suggest updating to the UHD 3.15 LTS branch. Jonathon On Wed, May 26, 2021 at 1:20 PM Snehasish Kar wrote: > Hello Jonathan > > Tried w

[USRP-users] Re: Timeout while streaming IQ samples to host in RFNOC

Hello Jonathan Tried with the example as you said, but if only try to stream from rfnoc radio I am able get IQ samples in the host . But as soon as I connect a fir filter with cutoff frequency 20MHz and transition 5MHz, it gives a timeout error. My current flowgraph looks something like this: R

[USRP-users] Re: UHD Exception

Since it doesn't happen very often, it may be hard to tell. I'll kick off rx_samples_to_file and just let it run while I'm not working on the SDR and just see if it ever happens. I'm using burst mode while transmitting and receiving on TX/RX. I don't know that the command utilities will be ab

[USRP-users] Re: UHD Exception

My guess is that the error causes the FPGA to reset which causes a temporary interruption in the pHY and MAC and by the time you ping, it has reset and brought the PHY and MAC up. Does this happen when you’re just streaming samples via rx_samples_to_file to /dev/null or tx_waveforms using the

[USRP-users] Re: UHD Exception

It happened again. Here's the last few lines of my console output: [WARNING] [0/Radio#1] Attempting to set tick rate to 0. Skipping. [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping. [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping. [WARNING] [0/Rad

[USRP-users] Linking two X310’s via Aurora

Is there any documentation on how to re-create the RFNoC Loopback demo from GRCON2019 where two X310s were linked together using the Aurora interface? I have an application where I would like to Connect the SFP+ (port 1) to an external FPGA for high rate data (200 MSPS) using Aurora and connect

[USRP-users] DPDK setup with UHD 4.0

Hello, I've been trying to use dpdk with UHD 4.0 on our newly purchased N320, but it is shown as disabled component when i cmake uhd. First, i used "apt-get install dpdk dpdk-dev", then realized it installed wrong version, afterwords i downloaded dpdk 18.11. from the source and compiled. Another m

[USRP-users] Re: tune speed

Hello I am applying uhd_sensor_value_to_bool (hSensor, & lo_locked) function in order to be sure that the new frequency is already precisely tuned and you can take the data with the command uhd_rx_streamer_issue_stream_cmd. If this is a slow function, why is it faster for the b200 board? How, the