Reason for GPS problems found!

[Yorick Moko]

would this not hamper running OS from SD?
(just informing)

y

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
>>>> *not*
>>>> 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
>>
>>
>>
>>
>>
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>>
>
>
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