POST
|
... Speaking of which, I was digging through the driver from the Dell website and I noticed references to the BCM4751 and a driver called BcmGnssBus.sys which it says: BcmGnssBus.sys - ACPI/UART&GPIO Driver wrapper exposes ACPI/UART driver as COM22 for BcmGnss.dll Which to me sounds promising, but unfortunately I can't get my hands on the tablet. The guys using it need it every day. So I can't mess around with it anymore. So I happened to get my hand on the tablet again, and I see that the driver I mentioned above "BcmGnssBus.sys" is in fact installed under "System Devices" as "Broadcom GNSS Bus Driver". So that document I read earlier said it exposes the driver as COM22 for BcmGnss.dll. I did a search for BcmGnss.dll and I see it in "C:\Program Files\Broadcom\Location\BcmgnsslocationSensor\x86" along with the other driver files, but most interesting is an xml file that looks really interesting. In the xml file it talks about things like baud rate, port name, and the different jobs that can be performed by the GPS controller. I wish I knew more about this stuff, then I'd have an idea of what I'm looking at. Anybody with a Latitude 10 know more about this, and why it doesn't actually show up as com22?
... View more
02-21-2013
12:14 PM
|
0
|
0
|
718
|
POST
|
Denise, My apologies in terms of wasting your time on this "problem". As it turns out this broadcom chip in my Lenovo does not acually have a true GPS function as you stated. It instead has a location determined through Wifi that only works while connected. I only determined this by leaving any wifi connectivity. I have the non-broadband version of the tablet. That said, Lenovo is pushing this tablet as having GPS with no qualifiers or explanations. I had a long conversation with Lenovo about the problem with the way they were stating their specifications. Needless to say I'm walking away unhappy. I think I should mention as well that the Dell has the same chipset and likely has the same problem with their terminology. The dell owners may be stuck as I am with a device that won't do what is claimed. Thanks for the investigation and sorry again about the confusion caused by Lenovo. I don't know what chip your lenovo came with, but the BCM47511 which is in the Dell is true GPS. From Broadcom's website: "The BCM47511 is the latest generation of standalone GPS SoC solutions, adding GLONASS functionality, while remaining pin-compatible to the BCM4751 GPS SoC solution. The Broadcom® BCM47511 standalone GPS receiver and the Broadcom BCM2076 combo receiver with Bluetooth and an FM tuner feature dual constellation support of both GPS and GLONASS satellites. BCM47511 GPS receivers will have the ability to use an additional 21 GLONASS satellites currently (24 projected in the future), on top of the existing 30 U.S. GPS satellites, nearly doubling the number of satellites that can be used for navigation. In urban areas, many GPS satellites are blocked by buildings, so the additional 21 satellites offered by the GLONASS system will provide significant improvements in location performance and accuracy over currently available GPS receivers. The BCM47511 SoC solution is Broadcom's latest generation of standalone receiver, featuring both integrated GPS and GLONASS. Since it is pin-for-pin compatible with Broadcom's popular BCM4751 SoC solution, customers can quickly upgrade their products to include GLONASS navigation support." Speaking of which, I was digging through the driver from the Dell website and I noticed references to the BCM4751 and a driver called BcmGnssBus.sys which it says: BcmGnssBus.sys - ACPI/UART&GPIO Driver wrapper exposes ACPI/UART driver as COM22 for BcmGnss.dll Which to me sounds promising, but unfortunately I can't get my hands on the tablet. The guys using it need it every day. So I can't mess around with it anymore.
... View more
02-14-2013
05:09 AM
|
0
|
0
|
1076
|
POST
|
That's great to know, but I'm not sure it moves us any closer to a solution. It's already been established that devices that connect via "physical serial port, a virtual COM port bound to a GPS receiver via Bluetooth or USB, or a program COM port attached to a GPS intermediate driver on Windows Mobile devices (on Windows Mobile 5.0 & newer systems)" work fine, as they interact with the ESRI's GPS library in the expected fashion. The focus here (based on the original post) is these integrated devices that utilize direct calls to the Location API... We for one, bought the tablet because it has an internal reciever and the prospect of connecting anything external somewhat defeats the purpose... Agreed. I was just pointing out that Dell's response is inaccurate. They (or Broadcom) could supply a driver that uses a virtual Com port, Windows 8 doesn't prevent them from doing so.
... View more
02-08-2013
09:08 AM
|
0
|
0
|
1076
|
POST
|
"Unfortunately this is a limitation of Windows 8 �?? it doesn't allow access to COM ports. This means that legacy applications that rely on this access will not work.�?� - awesome... This is actually not true for Windows 8, only Windows RT. See this thread: http://social.msdn.microsoft.com/Forums/en-US/wdk/thread/b2924065-1627-400d-9b81-6990c53e1652/ We are currently using a bluetooth connected GPS on our Latitude 10 and it works just fine via a virtual com port. Edit: I should add that it also affects Windows 8's metro apps, they can't access com ports either, but desktop apps still can.
... View more
02-08-2013
06:56 AM
|
0
|
0
|
979
|
POST
|
We're wondering this too. We just bought a Dell Latitude 10 Tablet specifically to use ArcPad on it and we haven't been able to get it to work so far. I'm really confused right now whether it's a problem with the specific device in the tablet, the Broadcom BCM47511 GPS, or whether it's due to the way Windows 8 handles GPS devices. Based on this it sounds like it's because Windows 8 has changed the way GPS is used to go through an API: http://social.msdn.microsoft.com/Forums/en-US/wdk/thread/c83dd941-0e03-448c-a438-33c573a6a22d But here you can see that they claim ArcPad and Windows 8 are "a beautiful marriage": http://arcpadteam.blogspot.com/2013/01/arcpad-windows-8-beautiful-marriage.html But then in the comments of that blog post you can see that people aren't having much luck getting it to work... Can someone help clear up what the problem is and whether there is likely to be a solution. We're trying to decide whether to return the tablet... Thanks so much!
... View more
01-31-2013
05:20 AM
|
0
|
0
|
979
|
Online Status |
Offline
|
Date Last Visited |
11-11-2020
02:24 AM
|