This is just awesome! I think the community owes you a big, big, thank you!!!
I'm waiting for the next surprises already ;-) On Wed, Apr 20, 2011 at 11:09 PM, Dr. H. Nikolaus Schaller < h...@goldelico.com> wrote: > 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 > > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community >
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