[USRP-users] b200: BBPLL not locked / Catalina not responding on custom fpga image

2018-05-31 Thread Sylvain Munaut via USRP-users
Hi, I'm working on a custom fpga image for the B210 running UHD 3.9.5 (and associated fpga code). I'm now faced with a problem that I cannot explain : -- Initialize CODEC control... terminate called after throwing an instance of 'uhd::runtime_error' what(): RuntimeError: [ad9361_device_t] B

Re: [USRP-users] b200: BBPLL not locked / Catalina not responding on custom fpga image

2018-05-31 Thread Sylvain Munaut via USRP-users
Hi Ian, > Ironically, the thing you described that I think is most likely to break the > system is exporting those signal to the Mictor to look at them! Hehe, well, there isn't much test points for me to probe them directly :) But as you said : - It wasn't working before - I also built an im

Re: [USRP-users] Using ZMQ

2018-05-31 Thread Marcus Müller via USRP-users
Hey Steve, so, how much sampling rate do you need? If this is a local network, directly using the USRP from Windows might just work. But: An X310 can generate significantly more data per second than fits through gigabit ethernet, so this can even theoretically only work if sampling rates are relat

Re: [USRP-users] UHD and process forking

2018-05-31 Thread Marcus Müller via USRP-users
Hello Keith, Sorry for the long silence - this problem really needed mulling over in my head, and then I postponed that... So, yes, I'd see why you want fine-tuned control over threading. Would modifying UHD be an option for you? I could imagine the following to be a viable approach: 1. in zero_

Re: [USRP-users] IQ transmission using grc

2018-05-31 Thread Marcus Müller via USRP-users
Hi ben, On Sat, 2018-03-24 at 05:32 +, Benny Alexandar wrote: > on USRP N210 is 100 MHz / 2 = 50 MHz. Is that correct ? > Can USRP sample at such high rates ? Yes. But it's impossible to fit 50 MS/s · 32 b/S through a 1 Gb/s link, so you need to reduce the sample depth to 8 b, so that a comp

Re: [USRP-users] IQ transmission using grc

2018-05-31 Thread Marcus Müller via USRP-users
That's a bit of a GNU Radio more than a USRP question, but nevertheless: You can't do that with the existing file_source. You'd need to extend the file_source's C++ or write your own block that does that cycling. Best regards, Marcus On Wed, 2018-03-21 at 17:07 +, Benny Alexandar wrote: > Hi

Re: [USRP-users] IQ transmission using grc

2018-05-31 Thread Jeff Long via USRP-users
You can edit the auto-generated Python code to start a thread that periodically calls: file_sink.open(next_file_name, repeat=1) for example. A tag is added whenever a repeating file restarts, if that helps at all. There is no way to play a list of non-repeating files with this block, but yo

Re: [USRP-users] UHD and process forking

2018-05-31 Thread Keith k via USRP-users
Hey Marcus Thanks for taking a look at this for me. Im a pretty competent computer engineer so I would be comfortable making modifications to UHD given your starting point. It may be a couple of weeks before I can look at this again, but I will try to look into this. I may need to pick your brain

Re: [USRP-users] N210 + WBX and X310 + TwinRXs sample alignment

2018-05-31 Thread Steve Gough via USRP-users
Thanks. That temporarily fixes the addressing issue. However, I am now seeing the following error. Could you please tell me why this might be happening? File "/home/colosseum/Downloads/for_steve_gough.py", line 47, in __init__ self.uhd_usrp_source_0.set_clock_source('external', 1) File "/hom

Re: [USRP-users] N210 + WBX and X310 + TwinRXs sample alignment

2018-05-31 Thread Marcus D. Leech via USRP-users
On 05/31/2018 12:50 PM, Steve Gough wrote: Thanks. That temporarily fixes the addressing issue. However, I am now seeing the following error. Could you please tell me why this might be happening? File "/home/colosseum/Downloads/for_steve_gough.py", line 47, in __init__ self.uhd_usrp_source

Re: [USRP-users] N210 + WBX and X310 + TwinRXs sample alignment

2018-05-31 Thread Marcus D. Leech via USRP-users
On 05/31/2018 01:24 PM, Steve Gough wrote: Oh, I meant I edited the python from the GRC which you had sent to print the number of motherboards using UHD's get_num_mboards (https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#ae4efbbc6480fba44939b34c78d44d7e9), and it returned 1.

Re: [USRP-users] Cannot Install SDK on 32-bit Linux Machine - Is there work Around?

2018-05-31 Thread Marcus Müller via USRP-users
Hi Konstanti, the most common reason for that is actually a typo in the file name or in the path; can you verifying the file is actually readable (i.e. ls -l /home/rfnoc/rfnoc_tutorial/share/uhd/imagesusrp_e310_fpga_RFNOC_sg3.bit displays read privileges)? Best regards, Marcus On Thu, 2018-05-3

Re: [USRP-users] N210 + WBX and X310 + TwinRXs sample alignment

2018-05-31 Thread Marcus D. Leech via USRP-users
On 05/31/2018 01:53 PM, Steve Gough wrote: Thanks for the tip. Tried that as well, and I get the below. Device address in the GRC parameter is set as : "addr=192.168.10.2 addr=192.168.10.5" (as attached) File "/home/colosseum/Downloads/for_steve_gough2.py", line 37, in __init__ chann

[USRP-users] [UHD] Python API branch updated

2018-05-31 Thread Brent Stapleton via USRP-users
Hello all, The python-api UHD branch has been updated. This was a forced update, so you'll need to manually reset if you're tracking this branch on git*. There have been a few improvements since our last announcement, which I'll quickly go over below. We'd like to thank everyone who has contribut

[USRP-users] change timestamp through GPIO

2018-05-31 Thread RizThon via USRP-users
Good day, I plan getting a B210. I can call set_time_now with the UHD interface but there must be latency involved, between the time I do the call and the time it is updated. Can I set or reset the time through the GPIO? My idea is to have a switching network piloted by Arduino or similar. The co

Re: [USRP-users] change timestamp through GPIO

2018-05-31 Thread Marcus D. Leech via USRP-users
On 05/31/2018 10:08 PM, RizThon via USRP-users wrote: Good day, I plan getting a B210. I can call set_time_now with the UHD interface but there must be latency involved, between the time I do the call and the time it is updated. Can I set or reset the time through the GPIO? My idea is to hav