Andy Green wrote:
About the 600sec thing, you can get the GPS chip to report 4 times a
second instead of once a second, maybe that can be to do with it. But
it is strange, noticing the heavy filtering on our results I wonder if a
lot of those samples coming so quickly were actually
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Somebody in the thread at some point said:
Thanks for your work Stacy.
| About the 600sec thing, you can get the GPS chip to report 4 times a
| second instead of once a second, maybe that can be to do with it. But
| it is strange, noticing the
Andy Green wrote:
| Has anyone
| figured out how to kick the GPS receiver into UBX mode? I would be
| curious to see if that changes anything.
It's actually documented by Ublox in here (Okular eats it)
I talked with Tony this morning he said he uploaded it
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Andy Green
Sent: Thursday, July 31, 2008 7:34 AM
To: List for Openmoko community discussion
Cc: Neng-Yu Tu (Tony Tu)
Subject: Re: Warranty after fix
7:44 AM
To: List for Openmoko community discussion
Subject: Re: Warranty after fix for GTA02 GPS rework forSD card
interferenceissue
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Somebody in the thread at some point said:
| steve schrieb:
| Amaybe when SD I/O occurs one could use
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Somebody in the thread at some point said:
| One last thing, the voltage scaling and clock rate reduction patches
| aren't in the kernel you used, they should be around in tomorrow's
| packages: if you have 600 sec to spare it would be
Andy Green wrote:
Somebody in the thread at some point said:
| I'm using OM2007.2 updated to today morning (Thursday July 31), and
| TangoGPS.
| Also have the map cache directory on the card. Normally works fine, but
| when I move indoors,
| gps shows 10 satellite fixes and gives my
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Somebody in the thread at some point said:
| After a reboot, it worked ok so its a false alarm - sorry!
Thanks for clearing it up.
- -Andy
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Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Fedora -
Hi there!
I'm not Andy obviously, but I think I still can answer that one ;)
Hi Andy,
I'm the guy who said that.
Actually I based my observation on the fact that i saw an entry of
10/x/y as the endmost entry on the TangoGPS status line.
Isn't that supposed to mean that it still has
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Somebody in the thread at some point said:
| Actually I based my observation on the fact that i saw an entry of
| 10/x/y as the endmost entry on the TangoGPS status line.
| Isn't that supposed to mean that it still has fixes from 10 satellites.
Our
Le vendredi 01 août 2008, Andy Green a écrit :
opkg install kernel-module-g-ether kernel-module-cdc-ether
Having updated the kernel and everything, I get a FATAL error with that:
opkg install kernel-module-g-ether kernel-module-cdc-ether
Installing kernel-module-g-ether
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Somebody in the thread at some point said:
| Le vendredi 01 août 2008, Andy Green a écrit :
| opkg install kernel-module-g-ether kernel-module-cdc-ether
|
| Having updated the kernel and everything, I get a FATAL error with that:
|
| opkg install
Vinc Duran schrieb:
But... what are our chances GTA03 will have a 3D gyro?
Could the accelerometers be substituted for a 3d gyro?
No, you need both accelerometer *and* gyro measurements for dead reckoning.
Andreas
___
Openmoko community mailing
On Friday 01 August 2008, Vinc Duran wrote:
On Thu, Jul 31, 2008 at 5:28 PM, Andreas Bogk [EMAIL PROTECTED] wrote:
snip
I'm not a mathematician, but I think I have sufficiently understood
Kalman filters and dead reckoning. A little known trick is to use
ordinary integration with the
Al Johnson schrieb:
We only need to replace 1 of the 2 3D accels with a 3D gyro. I've not looked
at the size or cost of solid state gyros so I don't know how practical that
might be.
Well, if this:
http://www.invensense.com/products/idg_300.html
had three axes instead of two, it would
Al Johnson [EMAIL PROTECTED] writes:
We only need to replace 1 of the 2 3D accels with a 3D gyro. I've not looked
at the size or cost of solid state gyros so I don't know how practical that
might be.
That's not a bad idea... I haven't looked into what accelerometers we have in
the FR,
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Somebody in the thread at some point said:
| and a negative - I moved the maps in tangoGPS from /tmp to the (orig
| freerunner) sdcard and it only works partially or not at all. This is
| offline usage. If I am online and I delete the map cache so
:14 AM
To: List for Openmoko community discussion
Subject: Re: Warranty after fix for GTA02 GPS rework for SD card
interferenceissue
I haven't had any problems with TTFF since the software update was
done. In fact my impression from all the emails on the subject was
that the software fix
] On Behalf Of Jay Vaughan
Sent: Wednesday, July 30, 2008 1:24 AM
To: List for Openmoko community discussion
Subject: Re: Warranty after fix for GTA02 GPS rework for SD card
interferenceissue
(We have external LNA) It means it can track with a 16dBm reduction
in GPS signal after it made
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Somebody in the thread at some point said:
| Do folks know wher to find the SOP for the cap fix?
|
| Tony, if you havent already, go ahead and post the SOP for the cap
fix. It's
| easy enough to do
| And undo.
Did you ever do it, steve?
- -Andy
steve schrieb:
Amaybe when SD I/O occurs one could use the accelerometers to dead reckon?
Dead reckoning without gyros is pretty hard. In theory, the two
accelerometers are not mounted in the same place and thus could be used
to derive rotation, but in practice they're pretty close to each
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Somebody in the thread at some point said:
| steve schrieb:
| Amaybe when SD I/O occurs one could use the accelerometers to dead
reckon?
|
| Dead reckoning without gyros is pretty hard. In theory, the two
| accelerometers are not mounted in the
Andy Green wrote:
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Somebody in the thread at some point said:
| steve schrieb:
| Amaybe when SD I/O occurs one could use the accelerometers to dead
reckon?
|
| Dead reckoning without gyros is pretty hard. In theory, the two
|
This one?
http://wiki.openmoko.org/wiki/Image:Gta02_gps_10pf_rework_sop.pdf
On Thursday 31 July 2008, steve wrote:
Do folks know wher to find the SOP for the cap fix?
Tony, if you havent already, go ahead and post the SOP for the cap fix.
It's easy enough to do
And undo.
Tilman Baumann wrote:
Andy Green wrote:
Inertial navigation systems for the masses!
Anyone here who wants to write a kalman filter?
Besides the point that a small pocket-IMU would be great. To GPS jumts
that big exist? As fas as i understand GPS it should have little jitter.
Besides the point that a small pocket-IMU would be great. To GPS jumts
that big exist? As fas as i understand GPS it should have little jitter.
Trimble had a few GPS models out with dead reckoning. Not pocket
sized. I think they are all off the market now. I got one off Ebay a
few weeks ago
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Somebody in the thread at some point said:
| I'm using OM2007.2 updated to today morning (Thursday July 31), and
| TangoGPS.
| Also have the map cache directory on the card. Normally works fine, but
| when I move indoors,
| gps shows 10 satellite
I did some testing today to add some more data points (or fuel on the
fire, depending on your point of view :-)
What I did was run three test, one with the SD card removed, one with
the SD card installed but idle and one with the SD card being used
heavily. For each test, I ran simultaneous
Brian Wilson schrieb:
See http://www.trimble.com/tms/placer450.aspx?dtID=overview
They use a small gyroscope.
[...]
If you are walking around and want a reasonable position the Kalman
filter would probably be easier to deal with.
Is there a mathematician in the house?
I'm not a
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Somebody in the thread at some point said:
| I did some testing today to add some more data points (or fuel on the
| fire, depending on your point of view :-)
Let's say you did nice work there enabling us to converge on an
understanding of the issue
On Thu, Jul 31, 2008 at 5:28 PM, Andreas Bogk [EMAIL PROTECTED] wrote:
snip
I'm not a mathematician, but I think I have sufficiently understood
Kalman filters and dead reckoning. A little known trick is to use
ordinary integration with the strap-down equation given the
accelerometer and
One last thing, the voltage scaling and clock rate reduction patches
aren't in the kernel you used, they should be around in tomorrow's
packages: if you have 600 sec to spare it would be interesting to see if
they made any change :-)
- -Andy
Hi Andy,
To get that kernel you reference
After a reboot, it worked ok so its a false alarm - sorry!
BillK
On Thu, 2008-07-31 at 08:38 +0100, Andy Green wrote:
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Somebody in the thread at some point said:
| and a negative - I moved the maps in tangoGPS from /tmp to the (orig
|
(We have external LNA) It means it can track with a 16dBm reduction
in
GPS signal after it made the satellite acquisitions. So if you
understood it will get a fix OK with the software workaround, and we
saw
many people report this, you should expect the tracking phase to work
better
I would take this to mean that your current location drifts from the
actual spot to places not quite where you are standing.
Exactly. I will try to upload some logs (just discovered the /tmp
change in tangogps, grr.. some test data has been lost) in the next
few days that demonstrate this
2008/7/30 Jay Vaughan [EMAIL PROTECTED]:
Just sayin', not trying to stir the pot. I've been testing this GPS
fix every day since it arrived, by tracking my progress to work, and
if I zoom too closely (meaning there is more SD I/O on map refreshes)
the GPS goes wild.
Do you (all) have also
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Somebody in the thread at some point said:
| Just sayin', not trying to stir the pot. I've been testing this GPS
| fix every day since it arrived, by tracking my progress to work, and
| if I zoom too closely (meaning there is more SD I/O on map
On Jul 30, 2008, at 10:24 AM, Jay Vaughan wrote:
My ride to and from work is through a wide open space with no
obstructions, lots of blue sky, and for sure .. SD I/O still massively
impacts GPS *accuracy*. Not just in the acquisition phase, but also
tracking ..
That's strange. I didn't test
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Somebody in the thread at some point said:
| On Jul 30, 2008, at 10:24 AM, Jay Vaughan wrote:
| My ride to and from work is through a wide open space with no
| obstructions, lots of blue sky, and for sure .. SD I/O still massively
| impacts GPS
Jay Vaughan wrote:
(We have external LNA) It means it can track with a 16dBm reduction
in
GPS signal after it made the satellite acquisitions. So if you
understood it will get a fix OK with the software workaround, and we
saw
many people report this, you should expect the tracking
We're not done with what we can do to mitigate it in software. These
guys should be in tomorrow's kernel.
okay i'll continue testing and logging in the meantime ..
;
--
Jay Vaughan
___
Openmoko community mailing list
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Somebody in the thread at some point said:
| We're not done with what we can do to mitigate it in software. These
| guys should be in tomorrow's kernel.
|
|
| okay i'll continue testing and logging in the meantime ..
Great.
- -Andy
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| Track is very accurate (no jump-offs the road) in the city.
Earlier I
| used Garmin
| GPS60 and tracks from it were way worse than from FR.
|
| I used today's kernel and u-boot.
That's pretty encouraging, thanks.
Hi again,
I made another test, driving back home. This time, I zoomed
So, to me, GPS works great now. I had more problems with accuracy of
my Garmin outdoor device.
on todays drive home i also did a trace - and got wildly sporadic
results when tangogps had to read maps again off the disk .. i do not
have the latest kernel, however, as it doesn't appear to
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Somebody in the thread at some point said:
| I drove here almost 100km/h (but don't tell anyone) on max zoom, to
| read tiles faster from the card. As you can see, no jump offs from the
| road.
|
| So, to me, GPS works great now. I had more problems
and a negative - I moved the maps in tangoGPS from /tmp to the (orig
freerunner) sdcard and it only works partially or not at all. This is
offline usage. If I am online and I delete the map cache so tango
starts clean, it loads the maps fine - probably caches them in ram. If
I go offline to
Start with the software fix. It should slove the problem.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Annie
Sent: Sunday, July 20, 2008 3:01 AM
To: community@lists.openmoko.org
Subject: Warranty after fix for GTA02 GPS rework for SD card interference
From everything I've heard a software only fix will not be enough.
Unless you ditch your sd card as a data store.
All new FR's have the HW fix and new software will be written to take
advantage of that HW platform.
The software fix alone allows you to get a fast TTFF but after that, sd
card data
On Tue, Jul 29, 2008 at 12:11 PM, Scott Derrick [EMAIL PROTECTED] wrote:
From everything I've heard a software only fix will not be enough.
Unless you ditch your sd card as a data store.
All new FR's have the HW fix and new software will be written to take
advantage of that HW platform.
The
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Somebody in the thread at some point said:
| The software fix alone allows you to get a fast TTFF but after that, sd
| card data transfers are just to noisy to maintain a high quality GPS
| data stream. Yes it works but poorly, which is better than
On Tue, Jul 29, 2008 at 1:48 PM, Steven Kurylo [EMAIL PROTECTED] wrote:
On Tue, Jul 29, 2008 at 12:11 PM, Scott Derrick [EMAIL PROTECTED] wrote:
From everything I've heard a software only fix will not be enough.
Unless you ditch your sd card as a data store.
I haven't had any problems with
On Tue, Jul 29, 2008 at 1:24 PM, Mike Hodson [EMAIL PROTECTED] wrote:
On Tue, Jul 29, 2008 at 1:48 PM, Steven Kurylo [EMAIL PROTECTED] wrote:
On Tue, Jul 29, 2008 at 12:11 PM, Scott Derrick [EMAIL PROTECTED] wrote:
From everything I've heard a software only fix will not be enough.
Unless you
On 7/12/08 simarillion wrote:
can somebody tell me if I will lose my warranty when I open my
Freerunner.
Hehe...do you really think we could get away with that kind of policy?!
This is Openmoko. If you /don't/ open your Neo, you should probably have
your warranty voided ;-)
-Sean
Sean Moss-Pultz wrote:
This is Openmoko. If you /don't/ open your Neo, you should probably have
your warranty voided ;-)
Wow, second best quote I've ever seen on this list.
The first being back in early May...
Andy Powell wrote:
Seriously, If everyone put as much effort into development as
On Sat, Jul 12, 2008 at 11:42:26AM +0200, simarillion wrote:
Hello,
can somebody tell me if I will lose my warranty when I open my Freerunner. I
don't know if I am allowed to remove the seal which is on one of the two torx
screws. I don't want to solder just check the connection plug of
14 day for single
28 day for 10 pack.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ajit Natarajan
Sent: Monday, June 23, 2008 2:37 AM
To: community@lists.openmoko.org
Subject: Re: warranty for 10 pack purchases
Shawn wrote:
Are there retailers
10 pack is a 28 day DOA.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ajit Natarajan
Sent: Tuesday, June 24, 2008 1:41 PM
To: community@lists.openmoko.org
Subject: warranty
Steve/Michael,
Sorry to be a bother, but could you update us on the U.S.
Is this the final word on warranties or are you still trying to work that
out?
On Wed, 25 Jun 2008, steve wrote:
10 pack is a 28 day DOA.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ajit Natarajan
Sent: Tuesday, June 24, 2008 1:41 PM
To:
Sounds pretty final to me.
14 day DOA on individual units.
28 day DOA on 10-pack purchases.
On Wed, Jun 25, 2008 at 2:02 PM, Dave O'Connor [EMAIL PROTECTED] wrote:
Is this the final word on warranties or are you still trying to work that
out?
On Wed, 25 Jun 2008, steve wrote:
10 pack is a
Realized that looked confrontational. :) I should have phrased it
There didn't seem to be any indicaiton that this would or has
changed, do you have reason to doubt that this policy is the official
one?
-Kevin
On Wed, Jun 25, 2008 at 2:08 PM, Kevin Dean [EMAIL PROTECTED] wrote:
Sounds pretty
*sniff* you hurt my feelings :(
:)
Not so long ago steve mentioned that 14 day doa was what the gta01 had and
until he knew more that was to be expected.
(not his words but I don't have the mail now)
On Wed, 25 Jun 2008, Kevin Dean wrote:
Realized that looked confrontational. :) I should
steve wrote:
10 pack is a 28 day DOA.
If that's the only warranty, I'm worried. Is there any reseller or
other option in the U.S. that will give us a longer warranty? Spending
$369 on a unit with such a short warranty is scary.
I would like to know how others in the U.S. think about this.
I'm in Canada and worried about the same thing which is why I asked
initially.
On Wed, 25 Jun 2008, Ajit Natarajan wrote:
steve wrote:
10 pack is a 28 day DOA.
If that's the only warranty, I'm worried. Is there any reseller or
other option in the U.S. that will give us a longer warranty?
in Germany (or the whole EU) every reseller has to give a warranty for
private customers from 2 years. i can't imagine that any reseller will
sell only one unit if there is no longer warranty option.
Ajit Natarajan schrieb:
steve wrote:
10 pack is a 28 day DOA.
If that's the only
On Wed, Jun 25, 2008 at 3:24 PM, Arne Zachlod [EMAIL PROTECTED] wrote:
in Germany (or the whole EU) every reseller has to give a warranty for
private customers from 2 years. i can't imagine that any reseller will
sell only one unit if there is no longer warranty option.
That's why I think
Shawn wrote:
Are there retailers in the US like this? Are they offering 10 packs
the same as OM (with the same price and all of the goodies)?
I had asked a question a while back about the warranty of individual
units in a 10-pack and Steve responded as follows (dated April 17):
``I will
On 2008-06-20 23:06:13 -0600, Vinc Duran wrote:
And is the warranty really only 28 days as in this faq?
http://gettingstartedopenmoko.wordpress.com/2007/12/31/faq-frequently-asked-questions/
Good catch. If that's true it's a good argument for ordering from
Pulster or some other distributor in
: Re: warranty for 10 pack purchases
On 2008-06-20 23:06:13 -0600, Vinc Duran wrote:
And is the warranty really only 28 days as in this faq?
http://gettingstartedopenmoko.wordpress.com/2007/12/31/faq-frequently-asked-questions/
Good catch. If that's true it's a good argument for ordering from
On Fri, Jun 20, 2008 at 8:02 PM, Robin Paulson [EMAIL PROTECTED] wrote:
i've seen this question come up a couple of times on the list, but
it's not been answered fully:
if we buy a 10-pack of freerunners, i assume they will come with a
warranty. how do we as individuals deal with warranty
Smith
Sent: Tuesday, May 06, 2008 3:07 AM
To: community@lists.openmoko.org
Subject: Re: Warranty on phase 1 phones
Openmoko,
A lot of people on the Group Order forum are asking about the
warranty protection of individual buyers when we consolidate
our orders. Is openmoko able to provide a solution
Openmoko,
A lot of people on the Group Order forum are asking about the
warranty protection of individual buyers when we consolidate
our orders. Is openmoko able to provide a solution where buyers may
take advantage of the bulk discount and reduced shipping
costs through Group Order and at the
What are the warrenty?
Alexander Frøyseth
Ian Stirling skrev:
Ajit Natarajan wrote:
Hi Steve,
If a group joins together to purchase the 10-pack, how will the
warranty work? I presume that each unit is individually warranted.
I'm sure that warranty service will require a purchase receipt
Alexander Frøyseth ha scritto:
What are the warrenty?
I figure that in Europe, if you buy regulary from a seller, it will be
included in the extra-price you'll have to pay here (that includes VAT,
battery recycling, warranty and more...).
--
Treviño's World - Life and Linux
Ajit Natarajan wrote:
Hi Steve,
If a group joins together to purchase the 10-pack, how will the warranty
work? I presume that each unit is individually warranted. I'm sure
that warranty service will require a purchase receipt or some other
proof of purchase. What receipt would we use? If
On Mon, 2007-02-19 at 17:32 -0800, Pranav Desai wrote:
Is there any warranty on phase 1 phones ? If the screen is bad, some
input ports don't work, etc. what will be the process then ?
Of course we'll have a warranty ;-)
I'm not sure of the exact terms at this point. Probably something
On 2/20/07, Sean Moss-Pultz [EMAIL PROTECTED] wrote:
On Mon, 2007-02-19 at 17:32 -0800, Pranav Desai wrote:
Is there any warranty on phase 1 phones ? If the screen is bad, some
input ports don't work, etc. what will be the process then ?
Of course we'll have a warranty ;-)
I'm not sure of
Ole Tange schrieb:
On 2/20/07, Sean Moss-Pultz [EMAIL PROTECTED] wrote:
On Mon, 2007-02-19 at 17:32 -0800, Pranav Desai wrote:
Is there any warranty on phase 1 phones ? If the screen is bad, some
input ports don't work, etc. what will be the process then ?
Of course we'll have a warranty
* Ole Tange [EMAIL PROTECTED] [070220 14:52]:
On 2/20/07, Sean Moss-Pultz [EMAIL PROTECTED] wrote:
On Mon, 2007-02-19 at 17:32 -0800, Pranav Desai wrote:
Is there any warranty on phase 1 phones ? If the screen is bad, some
input ports don't work, etc. what will be the process then ?
Of
Would this warranty cover accidental breakage of the large screen, say by
leaning on it against a desk or something?
I find it unlikely but it would really put minds at ease when spending a
small fortune on a phone; plus it might be that extra incentive to lure even
more to this phone...
* el jefe delito [EMAIL PROTECTED] [070220 17:20]:
Would this warranty cover accidental breakage of the large screen, say by
leaning on it against a desk or something?
I fear not. It's the one most probable way to kill the phone, and
probably the most expensive part to replace.
(E.g.
On Tue, 2007-02-20 at 10:08 -0600, el jefe delito wrote:
Would this warranty cover accidental breakage of the large screen, say
by leaning on it against a desk or something?
hehe...sorry man. Couldn't help you here ;-)
I find it unlikely but it would really put minds at ease when spending
a
Are you asking for some kind of cover everything I can do to this
device warranty? If yes how about we sell you one for US$350?
If it has unlimited replacements for a year, maybe! ;) lol
___
OpenMoko community mailing list
Andreas Kostyrka writes:
(E.g. experiences with laptops show, that a dead display is
practically never repaired.)
That's because the price of spare parts is normally jacked so high
that companies often make more money on replacement parts than on the
initial product's sale.
I find it
On 2/20/07, Pranav Desai [EMAIL PROTECTED] wrote:
On 2/20/07, Sean Moss-Pultz [EMAIL PROTECTED] wrote:
On Mon, 2007-02-19 at 17:32 -0800, Pranav Desai wrote:
Is there any warranty on phase 1 phones ? If the screen is bad, some
input ports don't work, etc. what will be the process then ?
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