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Re: [Discuss-gnuradio] u2_flash_tool : Can not find the command

From: Andy_Long
Subject: Re: [Discuss-gnuradio] u2_flash_tool : Can not find the command
Date: Thu, 4 Mar 2010 08:51:45 -0800 (PST)

Hi Johnathan, appreciate for your help. 

I have bought another brand (ADATA) 2GB SD card today and did the same thing
as before since I can not find any Kingston card available in shop.

1. I downloaded txrx.bin and u2_rev3.bin files from

and u2_flash_tool from

then put them into the same folder.

2. After that I use “chmond” to make the u2_flash_tool executable

3. Using sudo ./u2_flash_tool --dev=/dev/mmcblk0p1 -t s/w txrx.bin –w

   Take off the SD card from the reader and insert it back 

  Using sudo ./u2_flash_tool --dev=/dev/mmcblk0p1 -t s/w txrx.bin -v

4. Using sudo ./u2_flash_tool --dev=/dev/mmcblk0p1 -t s/w u2_rev3.bin –w

   Take off the SD card from the reader and insert it back 

  Using sudo ./u2_flash_tool --dev=/dev/mmcblk0p1 -t s/w u2_rev3.bin –v

5. There is no extra information after the verify command.

6. I put the SD card into the USRP2 and power it.

For sandisk SD card:  Only LED (F) is on
For ADATA SD card:  All LEDs are off

The same condition is described in here

If every step is fine, maybe I guess I am a bit unluck and have to wait for
the replacement. Can I have another way to check if the firmware in SD card
is correct rather than the verify command? 


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