Re: [Discuss-gnuradio] problem of USRP2+WBX

[Matthias Wilhelm]

Am Sa 09.10.2010 08:33, YouheiFujii <address@hidden> schrieb:

> Hi all,
> 
> 
> I get WBX, and I want to try benchmark_tx/rx.py on USRP2.
> 
> But when I use find_usrps, the program returns "No USRP found.".
> 
> I searched mailing-lists.
> I need to update firmware.
> 
> I tried this.
> 
> --
> sudo u2_flash_tool --dev=/dev/sdd1 -t s/w xrx_wbx_raw_eth_20100608.bin -w
> --
> 
> But after that, I can't use WBX and other dbs.
> Brfore that, I can use dbs with WBX exceptions.
> 
> 
> Is there a thing that we some should try?
> 
> 
> 
> Regards,
> youhei
> 
> --
> address@hidden        
> 
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Hello Youhei, 

first you should make sure that the FPGA bitstream is also correctly on the SD 
card, use the u2_flash_tool to copy both files to the card. You should use 
http://code.ettus.com/redmine/ettus/attachments/70/u2_rev3-20100603.bin as the 
FPGA image. 

Then, you should check if the USRP2 boots properly, i.e., if LED "F" is 
constantly on (power) and LED "D" turns on after a short while. This indicates 
that the SD card is working and the USRP2 booted successfully. 

If the LEDs are correct and it is still not working, you should update gnuradio 
to the newest version. Maybe your version is not able to speak with the device 
correctly. 

However, I think your problem is an issue with the USRP2 not booting correctly.

Regards, 
Matthias
[currently in (rainy) Kyoto]

ps:
I think I found your problem after writing this: you have a filesystem on your 
SD card, because you use /dev/sdd1. You have to use /dev/sdd with the 
u2_flash_tool in order to correctly flash the card, the files must be written 
directly on the beginning of the card (and make sure that /dev/sdd is the 
correct device first, it will otherwise overwrite your boot sector or 
whatever...) If you used a new card, you definitely need to put both FPGA and 
firmware on the card.