[USRP-users] 12 bits I/Q samples

Hello Everybody, according to FPGA implementation of my board which a USRP-b200, the Least significant 4bits of I or Q samples are always 0 (0x???0), which in turn means the recorded sample as short complex 16 bits (sc16) cpu format should have four zero at LSB. But almost 10% of recorded samples

Re: [USRP-users] 12 bits I/Q samples

Hi Arash, May you please provide some examples of what samples you've gathered? Thanks, Varban On Tue, Jan 21, 2020 at 12:07 PM Arash Jafari via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello Everybody, > > according to FPGA implementation of my board which a USRP-b200, the Least > sig

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

Thank you Jeff and Sam, I found now also the gpio.cpp example. Really helpful to get familiar with GPIO. >> To accomplish what you're talking about, I think you'd just need to use >> timed commands >>on both set_tx_rate() and set_gpio_attr(). If these are set >> to execute simultaneously, the >>

[USRP-users] Ethernet controller speed negotiation issue

Hi There,   Following is the configuration followed by issue description. Have you experienced or someone reported similar issue in the past with X552 Ethernet controllers? Centos version: 7.7Ethernet controller: X552SFP adaptor: FTLX8571D3BCV-ITixgbe default version: 5.1.0Updated ixgbe driver t

[USRP-users] ettus usrp B200 driver - not working on linux ubuntu

Hello, I have a problem with ettus usrp B200 on linux ubuntu. I have made all steps regarding UHD and driver installation with this tutorial: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z015BIZSA2&l=pl-PL I turned on support for usb 3.0 in vmware settings. I installed intel drive

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

Thomas, I believe I mistyped in my initial response to specify a TX rate change rather than frequency change. It might be more clear if I include some quick pseudocode describing what I'm talking about: tune_time = usrp->get_time_now() + uhd::time_spect_t(0.1) //Set a > future time to execute

Re: [USRP-users] ettus usrp B200 driver - not working on linux ubuntu

Hi Paweł - I'd recommend using these install instructions < https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux >. Please note specifically the section for "Configuring USB". It sounds like you've done most of the work already; just a couple part

Re: [USRP-users] 12 bits I/Q samples

On 01/21/2020 05:06 AM, Arash Jafari via USRP-users wrote: Hello Everybody, according to FPGA implementation of my board which a USRP-b200, the Least significant 4bits of I or Q samples are always 0 (0x???0), which in turn means the recorded sample as short complex 16 bits (sc16) cpu format s

Re: [USRP-users] ettus usrp B200 driver - not working on linux ubuntu

On 01/21/2020 11:50 AM, Michael Dickens via USRP-users wrote: Hi Paweł - I'd recommend using these install instructions < https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux

[USRP-users] USRP B210 hardware architecture

Dear colleagues, we have a USRP B210 in our lab, though, I have some questions regarding this device. First, I can’t find its hardware architecture? I would be glad if you send me its detailed information. I’m using *Gnuradio* as my simulation environment. In this simulator, when I connect a sig

Re: [USRP-users] USRP B210 hardware architecture

On 01/22/2020 01:53 AM, massoud pourmandi via USRP-users wrote: Dear colleagues, we have a USRP B210 in our lab, though, I have some questions regarding this device. First, I can’t find its hardware architecture? I would be glad if you send me its detailed information. I’m using *Gnuradio