[Gta04-owner] gta04 board can boot only outside freerunner case

[Dr. H. Nikolaus Schaller]

Am 30.03.2012 um 19:29 schrieb Belisko Marek:

> On Fri, Mar 30, 2012 at 7:16 PM, Dr. H. Nikolaus Schaller
> <hns at goldelico.com> wrote:
>> 
>> Am 30.03.2012 um 19:07 schrieb Belisko Marek:
>> 
>>> Hi,
>>> 
>>> I have strange problem.
>>> I replace free runner board with gta04 board according manual.
>>> All steps was fine. Before putting back to case I verify it can boot
>>> from flash (just plug battery + usb)
>>> and I can see pinguin on display so seems to be fine.
>>> 
>>> Then I put board and display back to free runner case. When again try
>>> to start I got just white display
>>> and no console output. Any hints what could I check and what could
>>> cause problems?
>> 
>> Do you have a SD card installed?
> No SD card installed, just want to boot existing image from flash.
> Currently don't
> have converted from SD to uSD so can't verify that option.

Well, it should also work without. It is just that if the AUX button is pressed
and a non-working SD card would have been inserted, this could happen.

>> 
>> The case sometimes may "press" the AUX/User button and this influences
>> the boot sequence. I remember that there was at least one who reported
>> and solved a similar problem (Lukas?).
> Maybe you're right. But when I put it ti case I don't close it
> completely so I have serial
> console connected but there is no output (just white display)

Not even a "60" message?

hm. This indicates that there might be a short circuit somewhere. Maybe
the metal backside of the display is being pressed down too much when
the display cover is installed?

>> 
>> If you have a RS232 cable you could also check the console output.
>> 
> 
>> Well, this is not that easy if you want to close the case. But:
>> 
>> * don't install the internal GPS antenna
>> * insert the RS232 cable from the backside through the GPS antenna hole
>> * insert the GTA04 PCB
>> * connect the cable
>> * close the front cover (but take care not to shear off the RS232 cable)
>> 
>> Then you can insert a battery and look at the RS232 console.
>> 
>> Nikolaus
>> 
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> 
> regards,
> 
> marek
> 
> -- 
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