[USRP-users] Re: USRP B210 not found and power cycle needed

Thu, 17 Aug 2023 04:31:57 -0700

That will only work if the system can actually see the device. 

There’s also the more drastic “reset bus” option. 


Sent from my iPhone

On Aug 17, 2023, at 1:49 AM, Venkatareddy Akumalla <[email protected]> wrote:


Hi,

I am not sure if this helps. Please run the following commands whenever you experience this issue with B210 and let me know if this works.

cd /usr/local/lib/uhd/utils 

sudo ./b2xx_fx3_utils --reset-device 



______________________________
regards,
Venkatareddy

From: Francisco Gallardo lópez <[email protected]>
Sent: Wednesday, August 16, 2023 17:56
To: Marcus D. Leech <[email protected]>
Cc: [email protected] <[email protected]>
Subject: [USRP-users] Re: USRP B210 not found and power cycle needed
 
External Email

Hi,

Actually, that is part of the problem. It happens sometimes, but not always. 
I would say mainly when there is a power outage or similar, but not always.

For the sake of testing, I just rebooted the remote machine. This time it appears in both lsusb and uhd_find_devices upon reboot. 

As said, I am not sure about the root cause. So it is complicated to tell.

When that happened last time, I did not check lsusb, but uhd_find_devices, and the system was not seeing the USRP. I guess lsusb would also not show the device.

I will check the thread Eden pointed out. 

Thanks
Fran



El mar, 15 ago 2023 a las 16:59, Marcus D. Leech (<[email protected]>) escribió:
On 15/08/2023 02:43, Francisco Gallardo lópez wrote:
> Hi,
>
> We have a remote station with an USRP B210.
>
> We observed that sometimes the remote machine cannot find the USRP
> B210 (I think it has to do with uncontrolled power cycles, but I am
> not 100% sure about the root cause. The point is that sometimes it
> happens).
>
> The only way to sort it out is to disconnect the power supply and the
> USB cable from the USRP, and then the remote machine can detect it
> again. i.e. doing a complete power reboot to the USRP.
>
> It is not a killer because the problem is not always happening, but it
> is annoying because it implies sending somebody to disconnect and
> connect the USRP B210 cables.
>
> Is anybody experiencing a similar issue? Any idea how to fix it?
>
> The remote machine uses Ubuntu 22.04.3 LTS and the UHD drivers.
>
> Thanks!
> Fran
>
I've seen this sporadically with B2xx over the years I've been using
them.  For example, on some hardware, the system cannot
   see the device on reboot, and you have to replug/power-cycle for the
system to even see it.

When this happens, does it show up in "lsusb" ?

_______________________________________________
USRP-users mailing list -- [email protected]
To unsubscribe send an email to [email protected]
_______________________________________________
USRP-users mailing list -- [email protected]
To unsubscribe send an email to [email protected]

Reply via email to