Re: [USRP-users] meta-ettus-v4.0.0.0 segfault

2020-11-04 Thread Marcus D Leech via USRP-users
Do other apps that use FFTs exhibit segfaults. Sent from my iPhone > On Nov 4, 2020, at 11:25 PM, Ben Magistro via USRP-users > wrote: > >  > Is anyone else using meta-ettus-v4.0.0.0 yet? if so, have you had any issues > with libfftw? > > Using the image on an E310, adding a single OOT mo

[USRP-users] meta-ettus-v4.0.0.0 segfault

2020-11-04 Thread Ben Magistro via USRP-users
Is anyone else using meta-ettus-v4.0.0.0 yet? if so, have you had any issues with libfftw? Using the image on an E310, adding a single OOT module (gr-ais) and trying to run an app distributed with it, the app segfaults. To further troubleshoot, I added gdb and it comes back with the following.

Re: [USRP-users] RFNoC Fosphor error

2020-11-04 Thread Jonathon Pendlum via USRP-users
Hi Robert, Try using the maximum MTU size supported. Also, try reducing the FFT size and SPP to 512. Jonathon On Wed, Nov 4, 2020 at 8:45 AM Robert Wilson wrote: > My Ethernet Controller is a Qualcomm Atheros AR8151 it’s max MTU is 6144 > bytes. I’ve changed MTU to the max with no change in gn

[USRP-users] REMINDER: GR Amateur Radio video meeting

2020-11-04 Thread Barry Duggan via USRP-users
For those interested in using GNU Radio in amateur radio applications, we have set up an On-line video meeting - I will present a program on Frequency Shift Keying, with a live On-the-Air demonstration of radioteletype - It will be on **Saturday 7 November 16:00 UTC** - see the details at http

Re: [USRP-users] Raspberry Pi 4 sampling Rate

2020-11-04 Thread Marcus D Leech via USRP-users
I used the external power input on the B210. Sent from my iPhone > On Nov 4, 2020, at 12:13 PM, David Evans via USRP-users > wrote: > >  I too was able to sustain around 12Msps on an XU4+B200mini, and was also > able to get OpenBTS to work. > Marcus, hope it's OK to ask, but did you use a U

Re: [USRP-users] Raspberry Pi 4 sampling Rate

2020-11-04 Thread David Evans via USRP-users
I too was able to sustain around 12Msps on an XU4+B200mini, and was also able to get OpenBTS to work. Marcus, hope it's OK to ask, but did you use a USB3 hub? When I tried it the XU4 was unable to supply enough current, causing the SDcard to get corrupted (I had a lot of fun with this!), the sol

Re: [USRP-users] RFNoC Fosphor error

2020-11-04 Thread Robert Wilson via USRP-users
My Ethernet Controller is a Qualcomm Atheros AR8151 it’s max MTU is 6144 bytes. I’ve changed MTU to the max with no change in gnuRadio response. Is the 6144 bytes not enough? On Tue, Nov 3, 2020 at 9:32 PM Jonathon Pendlum wrote: > Hi Ben, > > Try setting your NIC's MTU to 9000. > > Jonathon > >