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JFitt
Beginner
1,091 Views

AC7260 SPP speed limitations in W7

If anyone knows the solution to this I would appreciate it very much.

I have installed an AC7260 Mini PCIe to my desktop ASUS P8Z77-V and i7

I needed faster WiFi than the original and I also needed BT4 for development work I am doing.

I also needed fast Classic BT for a telemetry app I am developing and the card specs indicated I would get what I wanted - SPP and 460800 baud.

I do not get this. The driver installer for Intel Wireless Bluetooth (v20.20.0.2 26/10/2017) installs the MS Standard Serial Over Bluetooth Link for each VSP. The available options for speed range from 75 baud through 128,000 which is well short of my required 460800. I also get a simplified Advanced Options dialog.

Connecting a "vanilla" FTDI adapter I get speed options from 300 baud through to 921,600 in addition to a much more sophisticated Advanced Options dialog, and it works.

What am I missing here? Why can't the drivers match the capability of the FTDI driver? Have I mis-configured something?

Thanks.

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4 Replies
AlHill
Super User
49 Views

You will need to ask ASUS regarding this support/compatibility.

There are regulatory requirements:

https://www.intel.com/content/www/us/en/support/articles/000005687/network-and-i-o/wireless-networki... https://www.intel.com/content/www/us/en/support/articles/000005687/network-and-i-o/wireless-networki...

And, you may have problems:

https://www.intel.com/content/www/us/en/support/articles/000005846/network-and-i-o/wireless-networki... Why Doesn't My Laptop Recognize My New Intel® Wireless Adapter?

I know you have a desktop, but there is still the potential. And, there may well be issues with the ASUS bios support of this card.

Also, the Intel support staff will respond with other information regarding performance issues.

Doc

JFitt
Beginner
49 Views

Al, thanks for your reply.

I read the documents you linked and am very aware of the implications. It's good to refresh oneself with the realities of the technology from time to time.

I have fitted the adapter to a desktop that lives permanently in my home office/lab and I live in a rural area beside a rainforest, so I don't expect a knock on the door from the ACA any time soon.

Everything works. The drivers installed seamlessly and the adapter works just fine for WiFi and for Bluetooth. The PC is on a LAN so I don't actually need the WiFi except for development of wifi enabled embedded devices. The bios has no idea the wifi even exists. Its own on-board wifi has been turned off.

The ONLY thing that does not work is that I cannot select BT SPP speeds greater than 128000, which I find curious, and problematic because I need the speed.

Cheers, John

idata
Community Manager
49 Views

Hello jfitter,

We understand you're unable to set your Bluetooth® Serial Port Profile speed higher than 128,000 Bd using the latest drivers in Windows 7*.

As far I understand, this behavior may be expected, as SPP is supported by the Windows* inbox drivers, not by our Bluetooth® Software and drivers.

See:

1. https://www.intel.com/content/www/us/en/support/articles/000006802/network-and-i-o/wireless-networki... Features for Intel® PROSet/Wireless Software for Bluetooth® Technology

 

2. https://msdn.microsoft.com/en-us/library/windows/hardware/mt734149(v=vs.85).aspx Bluetooth® Version and Profile Support in Previous Windows* Versions (look for "Which Bluetooth® profiles have in-box support in previous versions of Windows*?")

Best regards,

 

Carlos A.
idata
Community Manager
49 Views

Hello jfitter,

 

 

We checked with our additional resources, but are unable to provide this information.

 

 

As an alternative you may try reaching out to our Resource & Design Center:

 

 

- https://www.intel.com/content/www/us/en/design/resource-design-center.html Technical Resources for Designers, Engineers, and Developers.

 

 

Best regards,

 

Carlos A.
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