Hello,

Sorry to resurrect an old thread, but I am still having this issue with
most if not all of the newer E310's I've ordered. These devices have the
updated firmware for the axi_pmu device.

I write 1 to the "autoboot" file using the following command:

echo 1 > /sys/devices/axi_pmu.3/autoboot

And I check it just to make sure:

cat /sys/devices/axi_pmu.3/autoboot

and it shows "1".

After a random number of power cycles, the device will not power back on
when power is applied. When I boot it manually with the power button, I can
check the "autoboot" value:

cat /sys/devices/axi_pmu.3/autoboot

And it has returned to "0"

Does anyone know what could be causing this?

Thanks,
Daniel

On Mon, Sep 26, 2016 at 5:05 PM, Philip Balister <phi...@opensdr.com> wrote:

> I'm working in the Ettus office this week and discussed this issue with
> the engineers. To make a long story short, the easiest fix is send the
> unit to Robin Coxe (cc'd) and they will install firmware that corrects
> the issue. To do this yourself requires a custom cable that is not
> available for sale yet.
>
> Philip
>
>
> On 09/26/2016 11:13 AM, Daniel May via USRP-users wrote:
> > All,
> >
> > I'm also having this issue. I've tried both:
> >
> > https://files.ettus.com/e3xx_images/e3xx-release-4/
> >
> > and
> >
> > https://files.ettus.com/e3xx_images/beta/fido-test-2016.05/
> >
> > But they both contain firmware version 2.0.  The device won't autoboot
> > after power cycling 3-4 times. How can I manually upgrade the firmware to
> > 2.2?
> >
> > On Fri, Jul 29, 2016 at 12:37 PM, LB Belella via USRP-users <
> > usrp-users@lists.ettus.com> wrote:
> >
> >> Neel-
> >>
> >> Thanks for your time.  I appreciate it.  In grepping dmesg it looks like
> >> our firmware version is 2.0:
> >>
> >> root@ettus-e3xx-sg1:~# dmesg | grep firmware
> >> [    1.167308] e3xx-pmu axi_pmu.3: Found firmware version 2.0
> >>
> >> That said I'm running the E3XX-RELEASE-4 SG1 Demo Image (at least I
> >> thought I was) so I would have thought the latest firmware was in that
> >> image.  Do I just need to verify that I'm running the latest image to
> get
> >> the up-to-date firmware?  I don't have access to the user's manual right
> >> this second so I may be missing something obvious.
> >>
> >> Anyway, thanks again for the help!
> >>
> >> lb
> >>
> >> ------------------------------
> >> From: neel.pand...@ettus.com
> >> Date: Fri, 29 Jul 2016 10:01:44 -0700
> >> Subject: Re: [USRP-users] E310 Power On/Off Behavior
> >> To: lb.bele...@live.com
> >> CC: usrp-users@lists.ettus.com
> >>
> >>
> >> Hello LB Belella:
> >>
> >> Which firmware version is reported when you boot your unit? (run "dmesg
> |
> >> grep Firmware")
> >>
> >> Back in January, we fixed an issue with the autoboot value. The fix is
> in
> >> commit bbeacff2b1bc3a17254167a79a26a2a2c82e906c. If your firmware
> version
> >> is less than 2.2, then you might still be affected by that, so an
> upgrade
> >> of your firmware should fix the problem.
> >>
> >> --Neel Pandeya
> >>
> >>
> >>
> >> On 28 July 2016 at 06:51,
> >> ​​
> >> LB Belella via USRP-users <usrp-users@lists.ettus.com> wrote:
> >>
> >> Greetings all-
> >>
> >> I have an E310 that is configured to power up automatically (1 is set in
> >> the autoboot file).  When the receiver is powered down correctly
> (shutdown
> >> -h now) the unit has no problem powering up the next time power is
> >> applied.  However, when the unit is shutdown improperly (i.e. power is
> >> removed from the device while it is powered up) the unit does not
> power-on
> >> until the power switch is pressed.  Is this the expected behavior?  If
> so
> >> what is the logic that prevents the unit from auto-powering?  Our plan
> was
> >> to use the E310 in a truly embedded application where we can't guarantee
> >> the unit will be properly shut down.  Any information or advice would be
> >> greatly appreciated.  Thanks in advance!
> >>
> >> lb
> >>
> >> _______________________________________________
> >> USRP-users mailing list
> >> USRP-users@lists.ettus.com
> >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >>
> >>
> >>
> >> _______________________________________________
> >> USRP-users mailing list
> >> USRP-users@lists.ettus.com
> >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >>
> >>
> >
> >
> >
> > _______________________________________________
> > USRP-users mailing list
> > USRP-users@lists.ettus.com
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >
>
>
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