[USRP-users] No respone packet error caused by timed frequency switching

Hi everyone, I already asked this the ettus support, but they did not got back to me yet, maybe someone here can help me. I am working on X310 with TwinRX boards. I use a lot of timed commands and since upgrading the firmware from 003.010.002.000 to 003.014.001.001 I get this error message aft

Re: [USRP-users] No block_id specified for channel 0

Howdy Jon, Bingo. I had suspected the same thing yesterday just before I left, but I wanted to let a new FPGA build overnight before I made any changes. The FPGA change did nothing, but rolling back a commit for gr-ettus did. I will say that even though things are "running" now, it doesn't see

[USRP-users] UHD sink transmit at 100 MSPS

Hello, I'm looking to transmit a wideband signal from an X310 at 100 MSPS, so I'll start by posing the very general question of what tips and optimizations do I need to make to be able to do this reliably. Here is what I already have set up (this is using a powerful server - 60 cores at 3.4GHz) G

Re: [USRP-users] RFNoC SVD Block

Hello, Thanks for your prompt response and sorry for my delayed one. I have thought about the first option you have discussed, which is to use already implemented SVD but modify it to fit with the nocshell. As we go down that way, I will update this thread with questions or any significant fin

[USRP-users] Expected FPGA compatibility number mismatch

Hello, We were working on the Schimdl Cox and OFDM Equalizer blocks. We updated to the recent version of UHD and did the installation manually. There is a rfnoc installation as well, done earlier. (UHD in rfnoc is 4.0 but the new one is 3.14) With the newly installed UHD and few changes, we co

[USRP-users] Pybombs UHD install for development machine CMake version failure

Hi all, I have recently acquired a USRP E312 and have been following the quickstart guide at: - https://kb.ettus.com/Software_Development_on_the_E310_and_E312 The relevant commands being: -   $ sudo pip install git+https://github.com/gnuradio/pybombs.git   $ pybombs recipes add gr-recipes g

Re: [USRP-users] Error running 1024 pt FFT block on N310

Hi Rob, The N3xx (and E3xx) only support having an FFT size up to 512 due to the page size. It'd be possible to modify the blocks to break up the FFT over several packets but it is not currently implemented. The X310 as is supports up to a 1024 point FFT. Regards, Nate Temple On Mon, Sep 9, 2019

Re: [USRP-users] Error running 1024 pt FFT block on N310

Thanks Nate, But I want to clarify a bit. For the N3xx and X310 (I don't know about the E3xx), the problem is not the FFT size, but simply the packet size on the xbar is limited to a certain size and given that the FFT noc block presently ties the packet size to the output FFT size, this effective

Re: [USRP-users] RFNoC SVD Block

Thanks! I'm always curious about how our hard- and software infrastructure is being used! By the way, in case you want to test a verilog SVD implementation within a signal processing framework: Bowen Hu did a very interesting Google Summer of Code project this year, in which he made it possible to

Re: [USRP-users] UHD sink transmit at 100 MSPS

Hi Josh, maybe https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks is of relevance to you? Best regards, Marcus On Wed, 2019-09-11 at 10:50 -0400, Josh via USRP-users wrote: > Hello, > > I'm looking to transmit a wideband signal from an X310 at 100 MSPS, > so I'll start by posing

Re: [USRP-users] Pybombs UHD install for development machine CMake version failure

Dear David, I've seen that happen on specific Ubuntu versions, where they somehow missed to clean up / mark conflict between CMake 2.x packages and newer CMake (I'm perpetually disappointed by Canonical). Make twice as sure that you only got one CMake installed - if this is actually Ubuntu, "apt s

Re: [USRP-users] RFNoC SVD Block

This Verilog AXI is so amazing. I just went through the project link quickly. We can test our verilog implementation on GRC! This will be so helpful. Thank you so much for sharing the information. Adnan From: Marcus Müller Sent: Wednesday, September 11, 2019 11:3

Re: [USRP-users] UHD sink transmit at 100 MSPS

Thanks Marcus! I've previously done most everything on there except for the DPDK. I'll give that a shot and see if it makes a difference. The strange thing though is that I only get the U's when first starting the flowgraph. In the steady state, the flowgraph only consumes 85% of a core for

Re: [USRP-users] Pybombs UHD install for development machine CMake version failure

On 9/11/19 12:38 PM, Marcus Müller via USRP-users wrote: > Dear David, > > I've seen that happen on specific Ubuntu versions, where they somehow > missed to clean up / mark conflict between CMake 2.x packages and newer > CMake (I'm perpetually disappointed by Canonical). Make twice as sure > that

[USRP-users] USRP B100 Help

Dear Members in the List, I'm working with an old USRP B100 that came with a cubesat development kit, Now suddenly stop working, no longer respond to: uhd_find_devices linux; GNU C++ version 5.3.1 20151219; Boost_105800; UHD_003.009.002-⁠0-⁠unknown No UHD Devices Found uhd_usrp_probe linux; GN

Re: [USRP-users] USRP B100 Help

Does this help? https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux#Configuring_USB On Wed, Sep 11, 2019 at 1:08 PM Javier Uranga via USRP-users < usrp-users@lists.ettus.com> wrote: > Dear Members in the List, > > I'm working with an old USRP B

Re: [USRP-users] USRP B100 Help

I recall this used to happen to some B100s. There’s an EEPROM writer command, I think, that can restore the correct identity. These devices are quite obsolete now, so don’t get your hopes up too much. I’m in the road at the moment and won’t be back until Friday. I should be able to dig up t