GNU-Radio duplex

Off topic threads and discussions
Post Reply
erik
Posts: 17
Joined: Mon May 18, 2015 12:35 am

GNU-Radio duplex

Post by erik »

Hello,

I simply tried to transmit a sine over osmocom receive it and calculate a fft.

TX and RX allone works well. Only sometimes the usb is gone away and I can not reach the bladerf until I have unpluged the USB cable and pluged in again.

TX and RX together do not work! The following failure appears:

FATAL: [bladeRF sink] Failed to open bladeRF device libusb:instance=0

After that I am not able to use the cli (GNU-Radio is closed before).

I have tryed on notebook and desktop booth results the same.
The device arguments for osmocom are: bladerf=0,xb200=custom
I try to send at 13.56Mhz.
Without the xb200 it works well! So the xb200 makes trouble on usb i think.


Is there a reason for this or I am doing something wrong?

I have found an old thread. It says I have to patch the xb200 manually to the osmocom, This is not mentioned in the wiki. Or does it mean the device arguments?

THX

Erik
bpadalino
Posts: 303
Joined: Mon Mar 04, 2013 4:53 pm

Re: GNU-Radio duplex

Post by bpadalino »

Can you show the output of GNU Radio as the flowgraph executes? It should print out the osmosdr version you're running.

We are able to run full duplex flowgraphs for quite some time now. It sounds like you may have an old/stale version running.

Note, I am looking for something similar to:

Code: Select all

gr-osmosdr v0.1.4-29-g44c223cb (0.1.5git) gnuradio v3.7.7.1-120-g67463e74

Along with whatever else is after that.

Also giving the output of "ver" and "info" in the CLI would be useful.

Brian
erik
Posts: 17
Joined: Mon May 18, 2015 12:35 am

Re: GNU-Radio duplex

Post by erik »

Hello,

I want only to let you know that it was a broken usb cable.

Greetings,

Erik
Post Reply