Hi Tathagata,

After you boot, if you run: $UHD_INSTALL_PREFIX/utils/b2xx_fx3_utils 
--reset-device

Are you able to then initialize the USRP by running uhd_usrp_probe?


Regards,
Nate Temple



> On Oct 31, 2017, at 11:11 AM, Neel Pandeya via USRP-users 
> <[email protected]> wrote:
> 
> Hello Tathagata:
> 
> If I recall from a separate conversation, after you upgraded the BIOS on this 
> Intel NUC, the system would no longer recognize the B210, right?
> 
> Before the BIOS upgrade, the B210 would still be recognized, but only after a 
> long 30- or 60-second delay, right?
> 
> --​Neel Pandeya
> 
> 
> On 31 October 2017 at 10:52, Humphries, James R. via USRP-users 
> <[email protected]> wrote:
> Hey T,
> 
>  
> 
> I encountered a problem similar to this in the past with a Minnowboard Max. 
> If you press the reset switch (S700 I believe), is the NUC able to see the 
> B210 (instead of unplugging USB)? I had to do this if I had a B200 plugged 
> into the Minnowboard while it booted.
> 
>  
> 
> The solution we came up with was to install a larger capacitor in parallel 
> with C716/S700. I recall installing a 100uF capacitor. This allowed some 
> extra time before the Cypress USB chip on the B200 powered up and it would 
> work normally after a cold boot.
> 
>  
> 
> Obviously, if you want to try I assume it will void your warranty on the 
> B210, so proceed at your own risk.
> 
>  
> 
> I think B200mini alleviated this ‘issue’ as it has a reset supervisor 
> (TPS3801).
> 
>  
> 
> -Trip
> 
>  
> 
>  
> 
>  
> 
> From: USRP-users [mailto:[email protected]] On Behalf Of 
> "Tathagata (T)" via USRP-users
> Sent: Tuesday, October 31, 2017 12:09 AM
> To: [email protected]
> Subject: [USRP-users] Problems with Ettus B210 and Intel Nuk
> 
>  
> 
> Hi,
> 
>  
> 
> We have a problem with Ettus B210 on an Intel Nuk. Briefly when we plug in 
> the SDR into the USB port of the Intel Nuk, it is not recognized. The Nuk is 
> running Ubuntu 16.04. The attached document details the debugging steps that 
> we have taken and the errors that we are getting.  We never had this problem 
> before and it suddenly started and we have no clue as to what is going wrong. 
> Any help would be highly appreciated.
> 
>  
> 
> Thanks
> 
> T
> 
>  
> 
>  
> 
> 
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> 
> 
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