What is the GPS chip in the N900 ?
 

I saw on My-Symbian forum that it might be the TI Navilink 6.0 which provides Bluetooth, FM receiver/transceivers and A-GPS.

Any idea ?

Re: What is the GPS chip in the N900 ?
 

This is a really good question. The GPS on the n810 was so abysmal, it would be nice to know that lessons were learned and that the n900 will be on par with other GPS enabled devices out there.

Re: What is the GPS chip in the N900 ?
 

From my knowledge the GPS chip on the N810 is a Navilink 4.0 (or 5.0 ?). I hope this will improve dramatically the time it takes to lock-on satellites signals.

Re: What is the GPS chip in the N900 ?
 

I expect that the N810's GPS performance is the result of antenna issues, rather than chipset limitations.

Re: What is the GPS chip in the N900 ?
 

Bluetooth looks to be provided by a dedicated chip (which also supplies the FM receiver)... take a look at the kernel source diff.

Re: What is the GPS chip in the N900 ?
 

That does not say much. The Navilink 6.0 is simply an aggregation of BT+FM core and A-GPS core on the same silicon, in the same way as the OMAP includes ARM core, SGX core, and a few more.

Re: What is the GPS chip in the N900 ?
 

On the other hand, the kernel diff appears to add support for BRF6150 Bluetooth chipset which is a BT v1.2 chipset, so I really don't know what are we supposed to make of that. Perhaps the BRF6150 driver also works with the BL6450 which is in the Navilink 6.0.

Re: What is the GPS chip in the N900 ?
 

The guy at My-Symbian says the Navilink 6.0 chip supports 802.11 b/g/n. The N900 does not support that officially. If I remember correctly most Nokia phones come with a Navilink 5.0 chip.

Re: What is the GPS chip in the N900 ?
 

I read elsewhere that its the same as the one my i8910 sports (that source suggested it was part of the chipset with the 600mhz ARM CPU). Would be good news if so, the i8910 has the best GPS of any device I've used (ie: N95, N95 8GB, N82, N97, Sony Xperia, HTC Touch Pro).

Re: What is the GPS chip in the N900 ?
 

That would seem sensible, but the beta kernel indicates a SI4713 chip for FM TX, and a BCM2048 for FM RX. The BCM2048 is BT 2.0+EDR, but the N900 specs say 2.1. Confusing much? I suppose it's possible they switched at the last minute, and this would also explain why FM RX is not supported.

Oh well, maybe one of these days we'll finally see some dmesg output...

Re: What is the GPS chip in the N900 ?
 

Just checked, it was Michael Jerz at the My-Symbian blog who said it was the same as the i8910, since he actually has the N900 to hand seems like a reasonably trust-worthy source.

Re: What is the GPS chip in the N900 ?
 

Wait it does not support that officially as it can't do 802.11 b/g/n at all? Or that it can with hackery?

Re: What is the GPS chip in the N900 ?
 

From my understanding if the N900 has the Navilink 6.0 chip then it should support 802.11 b/g/n.

The official spec is 802.11 b/g.

How much more power does 802.11 n consume compared to 802.11 b/g ? Is that even an issue ?

Re: What is the GPS chip in the N900 ?
 

But the TI link in the first post doesn't. Maybe "supports" in the sense of

Re: What is the GPS chip in the N900 ?
 

Ah, shame that it wouldn't support n speeds. Would be nice to have some future-proofing. Though I guess even with n speeds there would still be bottlenecks somewhere.

Re: What is the GPS chip in the N900 ?
 

There are at least 2 chips listed in the kernel for most functionality (camera, WiFi, FM, etc.). Either the chips they've been using on the prototypes have been changing or they're working on multiple devices (or both).

We'll probably have something out of the Summit.

Re: What is the GPS chip in the N900 ?
 

Yes please I am waiting for that to complete the Wikipedia article.

Re: What is the GPS chip in the N900 ?
 

FM RX is supported, but not officially....

Re: What is the GPS chip in the N900 ?
 

The Bluetooth chip is a BCM2048, and it supports FM RX. The kernel source clearly says so. :)

Re: What is the GPS chip in the N900 ?
 

Are there details on what the sample rate is and if it can be changed for more precision?

Re: What is the GPS chip in the N900 ?
 

Yes, the kernel does contain a driver for BCM2048. The question is whether that chip is what's inside the N900. The BCM2048 is BT 2.0+EDR, while the N900 specs say 2.1 (but I'm repeating myself).

Re: What is the GPS chip in the N900 ?
 

Annnd the winner is???

That is the chip?

Re: What is the GPS chip in the N900 ?
 

would the previously shared link help?

http://www.natisbad.org/N900/n900-co...are-specs.html

Re: What is the GPS chip in the N900 ?
 

To complet the circle

http://wiki.maemo.org/N900_Hardware_GPS

Re: What is the GPS chip in the N900 ?