N900 Hardware GPS
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| - | =Hardware= | + | ==Hardware== |
| - | The [ | + | |
| + | The [[:wikipedia:GPS|GPS]] in the [[Nokia N900|N900]] is a TI GPS5030 - navilink 5. [http://www.tessco.com/products/displayProductInfo.do?sku=365173&eventPage=3] | ||
The Navilink series is detailed [http://focus.ti.com/general/docs/wtbu/wtbugencontent.tsp?templateId=6123&navigationId=12028&contentId=4636 here]. | The Navilink series is detailed [http://focus.ti.com/general/docs/wtbu/wtbugencontent.tsp?templateId=6123&navigationId=12028&contentId=4636 here]. | ||
| + | The GPS is not connected to the main CPU, but to the processor in the phone module, hence cannot be communicated with directly. [https://bugs.maemo.org/show_bug.cgi?id=7026#c35] | ||
| - | The GPS | + | The GPS uses approximately 50 mA when enabled, and logging once per second using [http://repository.maemo.org/pool/maemo5.0/non-free/l/location-test-gui/ location test GUI]. See also [[N900 Hardware Power Consumption]] |
| - | + | ==Software== | |
| - | + | The GPS is driven through the [http://maemo.org/api_refs/5.0/5.0-final/liblocation/ liblocation] library, which supports several modes of location, some of which use the GPS, some use external data to improve lock times, and some that do not use the GPS at all. | |
| - | The GPS is driven through the [http://maemo.org/api_refs/5.0/5.0-final/liblocation/ liblocation] library, which supports several modes of location, some of which use the GPS, some use external data to improve lock times, and some that | + | |
There are many user applications that use the GPS, from simple loggers, like [http://maemo.org/packages/view/gps-data-logger/ GPS data logger] to [http://osm.org openstreetmap] [http://maemo.org/packages/view/osm2go editors] and even [http://www.sygic.com/index.php/en/press-releases/press-news/300-sygic-mobile-maps-for-nokia-n900-maemo-available-for-purchase.html commercial replacements for the free Ovi maps software]. | There are many user applications that use the GPS, from simple loggers, like [http://maemo.org/packages/view/gps-data-logger/ GPS data logger] to [http://osm.org openstreetmap] [http://maemo.org/packages/view/osm2go editors] and even [http://www.sygic.com/index.php/en/press-releases/press-news/300-sygic-mobile-maps-for-nokia-n900-maemo-available-for-purchase.html commercial replacements for the free Ovi maps software]. | ||
==Bugs== | ==Bugs== | ||
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| - | + | A number of users have reported poor or no lock in circumstances where the phone should obtain a GPS lock. See [https://bugs.maemo.org/show_bug.cgi?id=7026 this (now closed) bug] for more information and if you are still affected by this. (read all of the bug carefully) | |
[[Category:N900]] | [[Category:N900]] | ||
| - | [[Category: | + | [[Category:N900 Hardware]] |
Revision as of 09:47, 10 June 2010
Hardware
The GPS in the N900 is a TI GPS5030 - navilink 5. [1]
The Navilink series is detailed here.
The GPS is not connected to the main CPU, but to the processor in the phone module, hence cannot be communicated with directly. [2]
The GPS uses approximately 50 mA when enabled, and logging once per second using location test GUI. See also N900 Hardware Power Consumption
Software
The GPS is driven through the liblocation library, which supports several modes of location, some of which use the GPS, some use external data to improve lock times, and some that do not use the GPS at all.
There are many user applications that use the GPS, from simple loggers, like GPS data logger to openstreetmap editors and even commercial replacements for the free Ovi maps software.
Bugs
A number of users have reported poor or no lock in circumstances where the phone should obtain a GPS lock. See this (now closed) bug for more information and if you are still affected by this. (read all of the bug carefully)