RTOS/CC2640R2F: How to get SCAN RESPONSE data with Micro BLE Stack

Sijun Kim

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hello, thanks for help til now, I finally got some points how to implement my project related to Broadcasting and Observing.

I'm now using Micro BLE Stack because all of what I have to do is just advertising and scanning,

but I encountered this issue: There seems to be no example using SCAN_RESPONSE data with Micro Stack.

I defined FEATURE_SCAN_RESPONSE because of some macros in uble.c, but couldn't find how to get SCAN_RSP data in my application code.

Would you give me some example or explain how to handle this?

Thanks in advance!

(FYI, the base code I'm using now is this: )

over 8 years ago

0 IUsedToBeARealPerson (M-W) over 8 years ago

TI__Guru 58425 points

Hi Sijun,

I think this thread could give you the answers you seek:

e2e.ti.com/.../2557530

0 Sijun Kim over 8 years ago in reply to IUsedToBeARealPerson (M-W)

Intellectual 480 points

Hi, M-W!

Thanks for the reference, but what I'm exactly finding now is how to receive SCAN_RESP data in my observer role device.

The link basically shows how to send SCAN_RESP data, so could you give me some example for handling the data?

Best Regards,
Sijun Kim

0 IUsedToBeARealPerson (M-W) over 8 years ago in reply to Sijun Kim

TI__Guru 58425 points

Hi Sijun,

My bad I miss understood your initial question for sending scan responds on when operating in beacon mode, the "FEATURE_SCAN_RESPONSE" define are to enable the beacon scan responds and not for observer role. I'm not sure what the possibilities for receiving scan responses in the observer role is, I will have to look in to this and get back to you.

0 Sijun Kim over 8 years ago in reply to IUsedToBeARealPerson (M-W)

Intellectual 480 points

Hello, M-W, is there any update? Or is it impossible..? Now I just stopped using Micro stack, but seems to it will continue soon.
Any help would be much appreciated :)

0 IUsedToBeARealPerson (M-W) over 8 years ago in reply to Sijun Kim

TI__Guru 58425 points

Hi Sijun,

Sorry for the late response. From hat I've been able to gather it is not possible to do what you want using the micro BLE stack unfortunately.

0 Sijun Kim over 8 years ago in reply to IUsedToBeARealPerson (M-W)

Intellectual 480 points

Oh so you mean there is a way to send scan response but no way to receive and handle it in Micro Stack..? Hmm.. it's a little hard to get it.. I will try a little more when I continue and find some way.

If it's impossible, it seems I have to use the common BLE stack.

0 IUsedToBeARealPerson (M-W) over 8 years ago in reply to Sijun Kim

TI__Guru 58425 points

Hi Sijun,

Keep in mind that the uBLE stack is a very light weight implementation with a very small feature set, it is not meant as a replacement for the actual BLE stack. Sending a scan response are much simpler to implement as this is a feature built into the radio core in contrast to the receiving a scan response.

I guess you could try to implement the needed functionality yourself into the uBLE stack, but I'm afraid we have no examples of this available for doing this.

0 Sijun Kim over 8 years ago in reply to IUsedToBeARealPerson (M-W)

Intellectual 480 points

Thanks for the further explanation, M-W.

I understand what this situation is, so, if there is any function list or guide to implement the functionality, please let me know.

Otherwise I will try for myself and if I get to some conclusion, I will make this resolved.

Totally understood what you meant, and really appreciate for your guides in detail :)

Best Regards,
Sijun

0 IUsedToBeARealPerson (M-W) over 8 years ago in reply to Sijun Kim

TI__Guru 58425 points

Hi Sijun,

There is no guides on how to implement this i'm afraid. A good start to do this is to modify the scanning command to do a active scan instead of passive scan. You can find information regarding the BLE radio commands in the technical reference manual.

If you manage to implement this, feel free to share it as it interesting to see how it works out!

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RTOS/CC2640R2F: How to get SCAN RESPONSE data with Micro BLE Stack