LP-CC2652R7: Advertisement packet not shown when manufacture specific data is enabled in Broadcast Role for Andriod.

Kenneth Thomas

Part Number: LP-CC2652R7

Hello,

I'm using SDK 7_10_01_24 and when I enable the manufacture-specific data my android is no longer able to see the device however my iPhone is.

Regards,
Kenneth

over 2 years ago

0 Jan over 2 years ago

TI__Mastermind 44760 points

Hi Kenneth,

It seems the device is still advertising if the iPhone can see it. Can you try clearing the cache on your Android device and rescanning? Could you also try using a different BLE scanning application? It may help to restart the Android device and to disable and re-enable Bluetooth on your Android device.

Best Regards,

Jan

0 Kenneth Thomas over 2 years ago in reply to Jan

Intellectual 260 points

Hey Jan,

I tried clearing the cache and rescanning, I also tried another ble scanning application, I tried disabling and re-enabling Bluetooth and I finally tried to restart the device. It seems that if I toggle between including and excluding the manufacturer-specific data the device becomes undiscoverable and discoverable to the android phone.

Regards,
Kenneth

0 Jan over 2 years ago in reply to Kenneth Thomas

TI__Mastermind 44760 points

Hi Kenneth,

Understood, can you share the Android device and OS version you are using? Can you test if this behavior occurs on a different Android device as well?

Best Regards,

Jan

0 Kenneth Thomas over 2 years ago in reply to Jan

Intellectual 260 points

Hey Jan,

I am using a Samsung Galaxy Note 10 (Andriod Version 12), a Samsung A20 (Andriod Version 12), and an iPhone 12 (iOS 17.2.1).

Regards,
Kenneth

0 Jan over 2 years ago in reply to Kenneth Thomas

TI__Mastermind 44760 points

Hi Kenneth,

To clarify, the behavior is observed in both Android devices? Can you share how you are scanning the device? Can you try using the simplelink connect application available in the app store?

Best Regards,

Jan

0 Kenneth Thomas over 2 years ago in reply to Jan

Intellectual 260 points

I was able to figure out the problem, first issue was that when you write the company id and the data its written as LSB not MSB and second the data needs a 0x00 as the LSB for the device to show up properly. I do have a follow-up question since I used project zero as my starting point in scanResData1 the more 128-bits UUIDs Available is checked does removing it affect anything (especially OAD).

0 Kenneth Thomas over 2 years ago in reply to Kenneth Thomas

Intellectual 260 points

Also, I forgot the mention the length calculation for the manufacturer-specific data is one more than it should be.

0 Jan over 2 years ago in reply to Kenneth Thomas

TI__Mastermind 44760 points

Hi,

I am glad to hear you were able to resolve the issue! Thank you for sharing your findings! I do not believe that changing the advertisement data or scan response should have any impact on OAD operation.

Best Regards,

Jan

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LP-CC2652R7: Advertisement packet not shown when manufacture specific data is enabled in Broadcast Role for Andriod.