Re: [USRP-users] Is it possible to combine several X310 for MIMO/Beamforming applications using the RFNoC framework?

2017-08-21 Thread Martin Braun via USRP-users
On 08/14/2017 06:28 AM, via USRP-users wrote: > Hi, > > I'm interested in constructing a beamforming system using X310s, and try > to utilize the FPGA resources within the X310 USRP device. > > After some searching and reading of the introduction materials on RFNoC, > I am still wondering

Re: [USRP-users] Gnu radio compatibility

2017-08-21 Thread Marcus Müller via USRP-users
Yes, as said, you must use the library version that was used at build time. You can't just install a new UHD version and retroactively make your GNU Radio work with that! As implied, I think it would be wisest to uninstall your GNU Radio and all but exactly the UHD version you plan to use,

Re: [USRP-users] Gnu radio compatibility

2017-08-21 Thread Cho, Daniel J (332C) via USRP-users
Hello Marcus, So I do have different UHD version installed. Is that the reason why? I believe I have a rfnoc-devel installed as well. Thanks, Daniel Cho From: Marcus Müller [mailto:marcus.muel...@ettus.com] Sent: Monday, August 21, 2017 4:25 PM To: Cho, Daniel J (332C)

Re: [USRP-users] Gnu radio compatibility

2017-08-21 Thread Marcus Müller via USRP-users
Hello, Ah that explains it. It's not that GNU Radio isn't generally compatible with your version of UHD. It's just that as with every other library, you have to use the same version that was used to build the application at run time. So, if you plan to use a GNU Radio that you installed as a

Re: [USRP-users] Gnu radio compatibility

2017-08-21 Thread Cho, Daniel J (332C) via USRP-users
Hello, I am using the maint branch and I am also using gnu radio v3.7.10.2. The maint branch is using the most up-to-date uhd release which is 3.10.something which has an fpga compatibility number 16.0 and I am using the most up-to-date gnuradio v3.7.10.2. The error I am getting is :

Re: [USRP-users] ADC Overflow - B205i

2017-08-21 Thread Marcus Müller via USRP-users
Hi Dominik, proper PC now, so more freedom: There's two ways. One is what the UG-570 points [2] points to, which configures specific outputs to output ADC state info, and then react (including offering a readout from the host) to these outputs through FPGA modifications (because these signals

[USRP-users] x310 with twin rx uhd_usrp probe issue

2017-08-21 Thread Mark Koenig via USRP-users
My apologies. I was just verifying I had to upgrade UHD to 003.010.001. Mark On 8/21/17, 12:01 PM, "USRP-users on behalf of usrp-users-requ...@lists.ettus.com" wrote: x310 with twin rx uhd_usrp probe

Re: [USRP-users] ADC Overflow - B205i

2017-08-21 Thread Dominik Eyerly via USRP-users
Hi Marcus, Yes, I saw that in the AD datasheet :) The answer you provided does sound promising. Would you be able to provide some more detail on how this is accomplished? A simple example would be great. If an example is too much work, an explanation of where the modification takes place and how

Re: [USRP-users] ADC Overflow - B205i

2017-08-21 Thread Marcus Müller via USRP-users
Dear Mr. Eyerly, Indeed, the AD9361 has an overload indicator register. (Ad9361 manual ug-570, page 76) We don't directly expose that, but with modifications in our host/lib/usrp tree's ad9361_driver, you could expose that by publishing a register reader in the property_tree. Does that sound

[USRP-users] ADC Overflow - B205i

2017-08-21 Thread Dominik Eyerly via USRP-users
Hello, Is it possible to obtain a status of the ADC on the B205i using the UHD driver? In particular, I am interested in detecting adc overflows, i.e. too much power at the input. Best regards, Dominik -- -- i.A. Dominik Eyerly Head of RF Software Tel: +49 (0) 351 7958019 233 Fax:

Re: [USRP-users] USRP-users Digest, Vol 84, Issue 19

2017-08-21 Thread Mark Koenig via USRP-users
Thank you Marcus, so I need to rev my UHD version to 003.010.001? Mark On 8/19/17, 12:02 PM, "USRP-users on behalf of usrp-users-requ...@lists.ettus.com" wrote: Send USRP-users mailing list submissions to

Re: [USRP-users] continues streaming with rx_multi_samps

2017-08-21 Thread Nicolas Cuervo via USRP-users
Hello Snehasish, you can modify the example to get as many samples as you want, even if what you want is previously undefined. You might want to change the while loop condition in order to meet this [1] and add a stop signal (such as ctrl+c) with std::signal(SIGINT), which is used in other

[USRP-users] Run Time Error in Sending MIMO on B210

2017-08-21 Thread Masoud Naderpour via USRP-users
Dear All, When I transmit on both channels on USRP b210, after some time I receive the following error: terminate called after throwing an instance of 'std::length_error' what(): basic_string::_S_create But, in SISO mode there is no problem. Please help me. Thanks, Masoud