Editing N900 Hardware GPS
Warning: You are not logged in.
Your IP address will be recorded in this page's edit history.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
- | + | =Hardware= | |
- | + | The GPS in the [[Nokia N900|N900]] is a TI GPS5030 - navilink 5. [http://www.tessco.com/products/displayProductInfo.do?sku=365173&eventPage=3] | |
- | The | + | |
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 directly communicated with. [https://bugs.maemo.org/show_bug.cgi?id=7026#c35] | |
+ | The GPS uses approximately 50mA 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] | ||
- | The GPS | + | =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 don't use the GPS at all. | ||
- | + | 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://maemo.org/packages/view/osm2go openstreetmap 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== | |
+ | 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) | |
- | + | ||
- | = | + | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ===User reports of lock times=== | |
[[Category:N900]] | [[Category:N900]] | ||
- | [[Category: | + | [[Category:N900_Hardware]] |
Learn more about Contributing to the wiki.