[Gta04-owner] ANN: GTA04A2 engineering sample is now running Linux / will be shown at LinuxTag

Peter Klassen neo.freerunner at googlemail.com
Wed Apr 20 23:37:13 CEST 2011


Great!
i Love this video. the rest of the journey.. peanuts :)
What are the next steps, now you have a working sample of hardware? does
this mean you can test the remaining components even before A3?


One more time: congratulations
Peter


Am 20.04.2011 23:09, schrieb Dr. H. Nikolaus Schaller:
> Dear all,
> 
> after all the previous announcements that were certainly not encouraging
> and making everybody happy, I have this time really good news. And hope
> that there are only good news to report in the future...
> 
> We have finally found a way to patch the power supply issue of our first
> engineering sample board and are since this morning able to boot Linux and
> demonstrate LXDE on Debian. We will present this unique unit during
> LinuxTag on 11-14th May in Berlin. So please come!
> 
> This power supply hack was to solder an additional 1.2V LDO chip
> (TPS73601DCQ) to give the CPU more supply power [1]. Apparently this
> is sufficient to solve the spurious shutdown issue, which was coming from
> a very suboptimal PCB layout of our engineering board.
> 
> Anyway, the new GTA04A3 boards (which are already in production) have a
> heavily improved board layout so that I expect that they will never
> show this problem and are much more robust. After knowing how much
> the layout can and should be improved, I am still surprised that hacking the
> hardware with a 2 € LDO chip was a sufficient work-around...
> 
> Here is finally a brand new video showing the device in (battery!) operation: [2]
> 
> So we are looking forward to get the new GTA04A3 boards from SMD
> assembly (in approx. 4 weeks), connecting a display, inserting a SD card
> and a battery ...
> 
> Happy easter time to everyone,
> Nikolaus Schaller
> 
> 
> [1]: http://download.goldelico.com/gta04/images/DSC00784.jpeg
> [2]: http://www.youtube.com/watch?v=3KnJc7eImQ4
> 
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