<div dir="ltr">Hi guys,<br><br>as I wrote before ( but the message did apparently not
hit the list since I used a different email address ) I had the hardware fix applied on friday but used a
0603 cap instead, which fit quite nicely.<br><br>After further testing
I can only congratulate the OM-team for their quick and easy fix:
whether inside at the window, in a moving train or in narrow streets,
the FR is aquiring a Fix consistenly within about 120s from cold start under the most difficult conditions,
and of course even faster at consecutive tries ( warm start ). Under normal conditions, a TTFF of 40s seems to be the maximum needed even for a cold start, which in my opinion is exceptionally good!<br><br>The SD-Card (4GB) still works as expected
by this RF only fix, and there is no need to unmount it ...<br>
<br>Btw, this was all done with the mwester-andy kernel from 080716...<br><br>Big thumbs up to everyone at OM, now let the mapping begin ;-)<br><font color="#888888"><br>Stefan</font><br><br>On Fri, Jul 18, 2008 at 1:26 PM, Stefan Fröbe <<a href="mailto:frobiac@googlemail.com" target="_blank">frobiac@googlemail.com</a>> wrote:<br>
Great work, and I can confirm this to be working just fine !!!<br><br>That's
an advantage of working in a company in the semiconductor business:
enough people with the skills and tools able to try this modification
out on a lunchbreak - now I get a TTFF from cold boot of 150s under
most difficult conditions: Clouds / Mist, and high buildings on two
sides.<br>
<br>The previous software-only improvements were of mixed results: only
once did a fix occur, and by far not as fast as the 34s I got without
SD-Card.<br><br>Will keep you updated on further results this weekend, but so far it is great news to see a fix this quickly!<br>
<br>Keep up the great work and spirit,<br>Cheers,<br><font color="#888888">Stefan</font><br><br><br><div class="gmail_quote">On Sun, Jul 20, 2008 at 6:25 PM, Yaroslav Halchenko <<a href="http://site-openmoko.org">site-openmoko.org</a>@<a href="http://onerussian.com">onerussian.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">hm... or alter clocking pulse sufficiently for unstable SD performance<br>
with some (or all) SDs... how could we know for sure unless verified<br>
empirically... (noone could guess that having SD impacts GPS for quite<br>
a while, right?)<br>
<br>
I am not yet planing to do this hw mod on my phone, thus I can't really<br>
compare, and it would be great if anyone having such modded phone (I<br>
guess OM people) do such a simple test (basic IO testing of SD card<br>
similar to the ones which were posted to this list before).<br>
<br>
NB It would be really pathetic if then after new 'fixed' units are<br>
shipped, and new owners start complain that 50% of SD cards do not work<br>
or get significant performance reduction, right? So why not to make sure<br>
(I bet they already did smth like that thus it is just for someone from<br>
OM give results with numbers)<br>
<div class="Ih2E3d"><br>
On Sat, 19 Jul 2008, Michael Kluge wrote:<br>
<br>
> This additional capacitor has been added between clock and GND for the<br>
> SD card. So it is most probably just there to filter frequencies higher<br>
> than the clock rate itself.<br>
<br>
> Michael<br>
--<br>
Yaroslav Halchenko<br>
</div><div class="Ih2E3d">Research Assistant, Psychology Department, Rutgers-Newark<br>
Student Ph.D. @ CS Dept. NJIT<br>
Office: (973) 353-5440x263 | FWD: 82823 | Fax: (973) 353-1171<br>
101 Warren Str, Smith Hall, Rm 4-105, Newark NJ 07102<br>
WWW: <a href="http://www.linkedin.com/in/yarik" target="_blank">http://www.linkedin.com/in/yarik</a><br>
<br>
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