[USRP-users] E110 - Detects 63MB RAM in lieu of 512 MB

Brais Ares bares at gradiant.org
Thu Dec 18 04:08:02 EST 2014


Wow, it worked! We lent this USRP for a couple of years so someone else
must've been messing around with the NAND flash.

Thank you both once again. It's always a pleasure to use these email lists.

Greetings,
Brais.

2014-12-17 20:41 GMT+01:00 Philip Balister <philip at opensdr.com>:
>
> On 12/17/2014 12:59 PM, Marcus Müller via USRP-users wrote:
> > Hi Brais,
> >
> > I'm no expert in this, but the mem=80M looks suspicious.
> > I was under the impression that the problem was bound to the Overo (the
> > gumstick-sized board containing the CPU and SD card slot), but that boot
> > line should be coming from the installation on the SD Card, so I need to
> > confirm this:
> > the problem doesn't "stick" to a SD card image, but to the Overo itself,
> > right?
>
> OK, since you have an overo with NAND flash, u-boot is reading the
> cmdline from NAND flash. It is likely someone was doing some DSP work
> and used the mem= option to reserve memory for the DSP.
>
> You can reset the u-boot environment by clearing the NAND memory where
> the environment is stored.
>
> See step 4 at:
>
>
> http://gumstix.org/getting-started-guide/243-booting-your-gumstix-system.html
>
> The default environment from the u-boot binary should then let you
> access all RAM. Thanks for your patience as we worked through this.
>
> Philip
>
>
> >
> > Greetings,
> > Marcus
> >
> > On 12/17/2014 06:38 PM, Brais Ares wrote:
> >> Here,
> >>
> >> The flawed one returns:
> >>> console=ttyS2,115200n8 vram=12M omapfb.mode=dvi:1024x768MR-16 at 60
> >> omapfb.debug=y mem=80M omapdss.def_disp=dvi root=/dev/mmcblk0p2 rw
> >> rootfstype=ext3 rootwait buddy=
> >>
> >> The healthy one returns:
> >>> console=ttyO2,115200n8 mpurate=720 vram=12M
> >> omapfb.mode=dvi:1024x768MR-16 at 60 omapdss.def_disp=dvi
> >> root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait
> >>
> >> Thank you again.
> >> Regards.
> >>
> >> 2014-12-17 18:13 GMT+01:00 Marcus Müller <marcus.mueller at ettus.com
> >> <mailto:marcus.mueller at ettus.com>>:
> >>
> >>     Hi Brais,
> >>     Philip asked me to ask you: could you share the contents of
> >>     /proc/cmdline, ie. the output of cat /proc/cmdline?
> >>
> >>     Greetings,
> >>     Marcus
> >>
> >>
> >>     On 12/17/2014 04:56 PM, Brais Ares wrote:
> >>>     Here you go, I used PuTTY instead:
> >>>
> >>>     https://dl.dropboxusercontent.com/u/2696878/bootlog.txt
> >>>
> >>>     It's weird because it seems to recognize the 512 MB DRAM when
> >>>     booting...
> >>>
> >>>     Thank you again.
> >>>     Regards.
> >>>
> >>>     2014-12-17 16:06 GMT+01:00 Marcus Müller
> >>>     <marcus.mueller at ettus.com <mailto:marcus.mueller at ettus.com>>:
> >>>
> >>>         Hello Brais,
> >>>
> >>>         uh oh. I'd ask to do one more thing: can you connect a PC to
> >>>         the serial console USB port [1] and boot the device, and give
> >>>         us the output (at least the beginning)?
> >>>         For that, you would run (assuming the serial converter in the
> >>>         E110 appears as /dev/ttyUSB0 on your PC)
> >>>
> >>>         screen -L /dev/ttyUSB0 115200,cs8,-ixon,-ixoff
> >>>
> >>>         and get the screenlog.* of that run in the folder that you
> >>>         ran screen in. To exit screen, press ctrl+a, then k, then
> >>>         confirm.
> >>>
> >>>
> >>>         Greetings,
> >>>         Marcus
> >>>
> >>>         [1]
> http://code.ettus.com/redmine/ettus/projects/usrpe1xx/wiki/FAQ#How-do-I-connect-through-the-console-port
> >>>
> >>>         On 12/16/2014 11:39 PM, Brais Ares wrote:
> >>>>         Hello Marcus,
> >>>>
> >>>>         In order to discard that possibility, apart from switching
> >>>>         Overo boards, I also tried to only switch SD cards. I've got
> >>>>         one SD Card working flawless in the other E110, but putting
> >>>>         it into the faulty usrp, RAM goes down to 61 MB as well.
> >>>>
> >>>>         Regards,
> >>>>         Brais.
> >>>>
> >>>>
> >>>>         2014-12-16 20:19 GMT+01:00 Marcus Müller
> >>>>         <usrp-users at lists.ettus.com
> >>>>         <mailto:usrp-users at lists.ettus.com>>:
> >>>>
> >>>>             Hello Brais,
> >>>>
> >>>>             have you tried putting a clean image on the SD card?
> >>>>             This could also be caused by something wrong with the
> >>>>             way the operating system is loaded.
> >>>>
> >>>>             Greetings,
> >>>>             Marcus
> >>>>
> >>>>             On 12/16/2014 08:05 PM, Brais Ares via USRP-users wrote:
> >>>>>             Sorry,
> >>>>>
> >>>>>             All i said applied to USRPs E110.
> >>>>>
> >>>>>             2014-12-16 19:58 GMT+01:00 Brais Ares
> >>>>>             <bares at gradiant.org <mailto:bares at gradiant.org>>:
> >>>>>
> >>>>>                 Hello,
> >>>>>
> >>>>>                 I'm having trouble with one of my N210. It only
> >>>>>                 detects 63 MB of RAM as you can see in this pic,
> >>>>>                 when this value ought to be 512 MB:
> >>>>>
> >>>>>
> https://dl.dropboxusercontent.com/u/2696878/usrpram.jpg
> >>>>>
> >>>>>                 The RAM that's still left is not even enough to
> >>>>>                 compile a small program so that gcc throws an error.
> >>>>>
> >>>>>                 I moved the small PCB where the SD Card and
> >>>>>                 processor are to a healthy N210, and it's not
> >>>>>                 healthy anymore, so the problem seems to be this
> >>>>>                 small PCB.
> >>>>>
> >>>>>                 I would appreciate any advice about this.
> >>>>>
> >>>>>                 Regards,
> >>>>>                 Brais.
> >>>>>
> >>>>>                 --
> >>>>>
> >>>>>
> >>>>>
> >>>>>             --
> >>>>>
> >>>>>
> >>>>>
> >>>>>             _______________________________________________
> >>>>>             USRP-users mailing list
> >>>>>             USRP-users at lists.ettus.com <mailto:
> USRP-users at lists.ettus.com>
> >>>>>
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >>>>
> >>>>
> >>>>             _______________________________________________
> >>>>             USRP-users mailing list
> >>>>             USRP-users at lists.ettus.com
> >>>>             <mailto:USRP-users at lists.ettus.com>
> >>>>
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >>>>
> >>>>
> >>>>
> >>>>         --
> >>>>
> >>>
> >>>
> >>>
> >>>     --
> >>>
> >>
> >>
> >>
> >> --
> >>
> >
> >
> >
> >
> > _______________________________________________
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> >
>
>

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