Reason for GPS problems found!
yorickmoko at gmail.com
Wed Jul 16 19:42:05 CEST 2008
would this not hamper running OS from SD?
On Wed, Jul 16, 2008 at 7:22 PM, Dave Clark <rivalarrival at neo.rr.com> wrote:
> Jay Vaughan wrote:
>>>> Its really pretty important that the communication on this issue
>>>> diverge into hate and vitriol towards customers, because to those who
>>>> are observing the OpenMoko project - not participating - the SD+GPS
>>>> testing issue is a *huge* screw up.
>>> No, the SD+GPS issue is a bug.
>> Context:SD+Glamo == No go.
>> SD+GPS == No go.
>> How many GTA02's have been shipped before this problem was
>> discovered? How much time wasted trying to get GPS functioning so
>> that development can continue?
>>> Admittedly a somewhat nasty bug, but
>>> nothing extraordinary.
>> If I can't use SD+GPS, its a no-brainer: Freerunner is no longer
>> qualified for my project. Having spent a year on OpenMoko, thats
>> nasty. I was willing to give the SD+Glamo issue a slide, but ..
> The fix is to shutdown the SD clock when the card is idle. An
> intermittent degradation of the GPS signal while seeking the SD card
> won't have much of an effect - you could keep your maps on the SD card,
> which will come out of idle for a few seconds to load the maps, then go
> back to idle. I haven't seen a GPS device yet, including TomTom and
> Garmin devices, that is completely free of defects during this stage of
> operation. (TomTom "jumps" a few miles ahead or behind, then flies back
> to the proper position. The Garmin device I used "froze" in place for a
> few seconds before zooming ahead)
> You probably won't be able to watch videos from the SD card while using
> the GPS, but you will be able to use the SD card after the kernel is
> patched to switch off when not being accessed.
> If this bug showed up in any other device during testing, you'd never
> know about it because this kind of testing is hidden from public view.
> If this kind of openness disturbs you, you might feel more comfortable
> with a legacy system like the iPhone 3G.
>> Jay Vaughan
>> Openmoko community mailing list
>> community at lists.openmoko.org
> Openmoko community mailing list
> community at lists.openmoko.org
More information about the community