WBX board

GNU Radio
1

Dear list,

I got the LFRX / LFTX boards to work, but my WBX board will not work at
all. I can neither receive the slightest bit nor transmit.

The simplest FFT experiment does not show anything.

How do I start to diagnose how it works?

BR
markus
dl8rds

2

On Fri, 2010-11-12 at 02:47 +0100, Markus Heller M.A. (relix GmbH)
wrote:

Dear list,

I got the LFRX / LFTX boards to work, but my WBX board will not work at
all. I can neither receive the slightest bit nor transmit.

The simplest FFT experiment does not show anything.

How do I start to diagnose how it works?

More information would help. What signal generator are you using? What
amplitude? What frequencies? What decimation? Is this a GRC flowgraph or
a Python script? What are you using for a receiver? What modulation?

3

With USRP2?

With classic USRP2 firmware you’ll need the firmware image that
supports the WBX. I’d you’re using UHD it should just work

–
Principal Investigator
Shirleys Bay Radio
Astronomy Consortium

On Nov 11, 2010, at 8:47 PM, “Markus Heller M.A. (relix GmbH)”
<[email protected]

4

Hi Marcus,

I guess this is the reason because nothing seemed to work. Just as if
there was no board at all.

I’ll try the new firmware and come back on this thread.

Thanks a lot!

Markus
DL8RDS

Am Donnerstag, den 11.11.2010, 20:51 -0500 schrieb Marcus D. Leech:

5

Hi Marcus,

thanks very much for your hints! You set me on the right track.

In fact I noticed the exactly same scenario as Evan Chen and the
solution also worked for me:

I applied the following on the SD card that came with my USRP2:

u2_flash_tool.py --dev=/dev/XXXX -t s/w Download/firmware-txrx.bin -w
u2_flash_tool.py --dev=/dev/XXXX -t fpga Download/u2_rev3.bin -w

… where XXXX is mmcblk0 in my case and
… with the current firmware and u2 code instead of the files given in
the above example.

I downloaded the u2_flash_tool.py from here:

http://www.mail-archive.com/[email protected]/msg20924.html

Everything works fine now!

BR && 73s
Markus
DL8RDS

Am Freitag, den 12.11.2010, 04:15 +0100 schrieb Markus Heller M.A.
(relix GmbH):