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[Gumstix-users] Pecular Problem with Robostix comunications

From: Jesse Welling <jesse.welling@gm...> - 2007-02-17 09:24

Ok so I haven't used my Robostix in a while,
I brought it out and hooked every thing up (jumper'd ttyS2 to atmel0
like a null modem) And it appears to down load code but after every
thing is downloaded it doesn't run. I've tried all of my code and
Simple-Flasher but it is a no go. I get nothing on the leds or the
serial line (it should spit out a continuous stream of stuff).
I've tried resetting the fuses (pgm-fuse-standalone) but that didn't work.
I also tried resetting it with "S10robostix restart" but that didn't
work either.

I don't have any o-scopes or multi-meters at my house so I don't have
any kind of info on that. It seems half bricked and besides taking an
o-scope to it on Monday is there any thing else I should try this
weekend?

I hope every one had a more fun on their friday night then I did  =(

    -Jesse W.

Re: [Gumstix-users] Pecular Problem with Robostix comunications

From: Dave Hylands <dhylands@gm...> - 2007-02-17 17:39

Hi Jesse,

> I don't have any o-scopes or multi-meters at my house so I don't have
> any kind of info on that. It seems half bricked and besides taking an
> o-scope to it on Monday is there any thing else I should try this
> weekend?

OK - download Flash-LED.hex and then power everything down. Unplug the
gumstix and just plugin power to the robostix, and redo the fuses just
to be sure.

The power LED should go on and the LEDs start blinking.

One of mine went spastic, seems to be something to do with the
external crystal. If the above doesn't produce any results, we can try
changing the fuses to have it run off the internal 8MHz clock source.

-- 
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/

Re: [Gumstix-users] Pecular Problem with Robostix comunications

From: Jesse Welling <jesse.welling@gm...> - 2007-02-17 23:40

Attachments: Message as HTML

Dave,
Power led goes on but no blinking.
Jesse was a sad Panda.

So to try the 8MHz clock we want to select the 'Calibrated Internal RC
Oscillator'
So we want cksel 3-0 to be 0100. Do I have to change any thing else on the
fuses
or can I just modify pgm-fuse-standalone? Do I need to do any thing with sut
1-0?

Thanks for the help, like always your bailing me out.

On 2/17/07, Dave Hylands <dhylands@...> wrote:
>
> Hi Jesse,
>
> > I don't have any o-scopes or multi-meters at my house so I don't have
> > any kind of info on that. It seems half bricked and besides taking an
> > o-scope to it on Monday is there any thing else I should try this
> > weekend?
>
> OK - download Flash-LED.hex and then power everything down. Unplug the
> gumstix and just plugin power to the robostix, and redo the fuses just
> to be sure.
>
> The power LED should go on and the LEDs start blinking.
>
> One of mine went spastic, seems to be something to do with the
> external crystal. If the above doesn't produce any results, we can try
> changing the fuses to have it run off the internal 8MHz clock source.
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
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> _______________________________________________
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>



-- 
    -Jesse W.

Re: [Gumstix-users] Pecular Problem with Robostix comunications

From: Dave Hylands <dhylands@gm...> - 2007-02-18 00:19

Hi Jesse,

On 2/17/07, Jesse Welling <jesse.welling@...> wrote:
> Dave,
> Power led goes on but no blinking.
> Jesse was a sad Panda.
>
> So to try the 8MHz clock we want to select the 'Calibrated Internal RC
> Oscillator'
> So we want cksel 3-0 to be 0100. Do I have to change any thing else on the
> fuses
> or can I just modify pgm-fuse-standalone? Do I need to do any thing with sut
> 1-0?

I tested with fuses of Extended: 0xFF, High: 0xC9, Low: 0xA4

which CKSEL = 0100 and SUT = 10

and of course, the LEDs flash once every 2 seconds since it's running
at half the clock rate it thinks its supposed to be at.

-- 
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/

Re: [Gumstix-users] Pecular Problem with Robostix comunications

From: Jesse Welling <jesse.welling@gm...> - 2007-02-18 01:51

Attachments: Message as HTML

looks like I have a dead robostix.

On 2/17/07, Dave Hylands <dhylands@...> wrote:
>
> Hi Jesse,
>
> On 2/17/07, Jesse Welling <jesse.welling@...> wrote:
> > Dave,
> > Power led goes on but no blinking.
> > Jesse was a sad Panda.
> >
> > So to try the 8MHz clock we want to select the 'Calibrated Internal RC
> > Oscillator'
> > So we want cksel 3-0 to be 0100. Do I have to change any thing else on
> the
> > fuses
> > or can I just modify pgm-fuse-standalone? Do I need to do any thing with
> sut
> > 1-0?
>
> I tested with fuses of Extended: 0xFF, High: 0xC9, Low: 0xA4
>
> which CKSEL = 0100 and SUT = 10
>
> and of course, the LEDs flash once every 2 seconds since it's running
> at half the clock rate it thinks its supposed to be at.
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> gumstix-users mailing list
> gumstix-users@...
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>



-- 
    -Jesse W.

Re: [Gumstix-users] Pecular Problem with Robostix comunications

From: Dave Hylands <dhylands@gm...> - 2007-02-18 03:47

Hi Jesse,

On 2/17/07, Jesse Welling <jesse.welling@...> wrote:
> looks like I have a dead robostix.

So, it would be good to check all of the voltage regulators. It seems
odd to me that you can program it successfully and yet it doesn't
work.
http://docswiki.gumstix.com/Robostix_troubleshooting

-- 
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/