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Kak
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 Posted: Fri Oct 03, 2008 9:33 am Post subject: Garmin GPS 18x SDK question |
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Hello everybody,
I>m trying to use a Garmin 18x USB device to get the position and time
with the "SDK" they provide (well, the sample .c file...)
I>ve been able to retrieve time and position, however I don>t know if
the satellites have been "detected" or not (therefore I don>t know if
the measure is accurate). Is there any way to do that (no matter if
it>s an undocummented feature)
TIA!
Kak |
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Kak
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| Posted: Fri Oct 03, 2008 11:53 am Post subject: Re: Garmin GPS 18x SDK question |
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[quote]if the satellites were not detected, then you certainly would not get
a postion and/or time to retrieve
[/quote]
It seems to retrieve the last known position and uses an internal
clock.
In example, when I first started playing with the usb gps, it told me
it was in taiwan (a place which I>m not, and curiously, the device is
"made in taiwan") |
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Kak
Guest
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| Posted: Fri Oct 03, 2008 2:35 pm Post subject: Re: Garmin GPS 18x SDK question |
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On Oct 3, 3:14 pm, Bert Hyman <b...@iphouse.com> wrote:
[quote]The "D800_Pvt_Data_Type" structure which contains altitude, latitude,
longitude and time also includes a field called "fix", which has
values ranging from "unusable" through "3D_diff" which might be what
you>re looking for.
[/quote]
Hi Bert,
it works flawlessly! Lots of thanks! :)
Kak |
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Guest
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| Posted: Fri Oct 03, 2008 4:26 pm Post subject: Re: Garmin GPS 18x SDK question |
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On Fri, 3 Oct 2008 02:33:53 -0700 (PDT), Kak <jordi.z80@gmail.com>
wrote:
[quote]Hello everybody,
I>m trying to use a Garmin 18x USB device to get the position and time
with the "SDK" they provide (well, the sample .c file...)
I>ve been able to retrieve time and position, however I don>t know if
the satellites have been "detected" or not (therefore I don>t know if
the measure is accurate). Is there any way to do that (no matter if
it>s an undocummented feature)
TIA!
Kak
[/quote]
if the satellites were not detected, then you certainly would not get
a postion and/or time to retrieve |
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Bert Hyman
Guest
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| Posted: Fri Oct 03, 2008 6:14 pm Post subject: Re: Garmin GPS 18x SDK question |
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jordi.z80@gmail.com (Kak) wrote in
news:08aa8408-1b80-46a2-b73e-8e1b407a8b7b@v28g2000hsv.googlegroups.com:
[quote]Hello everybody,
I>m trying to use a Garmin 18x USB device to get the position and
time with the "SDK" they provide (well, the sample .c file...)
I>ve been able to retrieve time and position, however I don>t know
if the satellites have been "detected" or not (therefore I don>t
know if the measure is accurate). Is there any way to do that (no
matter if it>s an undocummented feature)
[/quote]
I downloaded the SDK a while ago just to look at it and have never
actually used it, but ...
The "D800_Pvt_Data_Type" structure which contains altitude, latitude,
longitude and time also includes a field called "fix", which has
values ranging from "unusable" through "3D_diff" which might be what
you>re looking for.
--
Bert Hyman | St. Paul, MN | bert@iphouse.com |
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