CCS/CC2640: Make Peripheral connectable (or able to maintain connection) ONLY to SOME hosts (such as host_texas example).

Leoni Mota Loris

Part Number: CC2640

Tool/software: Code Composer Studio

I have a cc2640 acting as a peripheral ble5 and I would like to know how would I make this peripheral connectable ONLY to my "custom" host (we can assume this is just a host_test cc2640),

I mean, no other host (such as android/iOS phones with ble capabilities, no hosts from different manufacturers) would be able to connect.

Is there a proper way for doing this?

It could be through pairing modes, could be through keys exchange after a attempt to connect (disconnecting soon after in case of wrong keys) or anything else that could do it in a proper way.

over 7 years ago

0 Evan W over 7 years ago

TI__Mastermind 40450 points

Leoni,

You could look at simple_peripheral and simple_central to see how this is done. In simple_central.c the device filters device discovery results based on the service UUID in the advertising packet. From there you can filter what you want to report in your scan response and then connect to whatever has that service UUID.

This is set by DEFAULT_DEV_DISC_BY_SVC_UUID. I recommend looking at simple_central to see how this is done in there.

0 Leoni Mota Loris over 7 years ago in reply to Evan W

Expert 1225 points

It seems you did not understand what I meant.
I dont want to filter which devices my host is supposed to connect. My host should be able to connect any

I want to AVOID any Android or IOs or any other host other than my own, to connect to my peripheral.

0 Evan W over 7 years ago in reply to Leoni Mota Loris

TI__Mastermind 40450 points

As a peripheral, you have no control over who connects to you. You would have to connect and then at application level determine that you wish not to be connected to that device and terminate.

0 Evan W over 7 years ago in reply to Evan W

TI__Mastermind 40450 points

Hi Leoni,

Please let me know why you've rejected my answer. To the best of my knowledge, this thread is resolved as you do not have control over who connects to you as a peripheral.

0 Leoni Mota Loris over 7 years ago in reply to Evan W

Expert 1225 points

Connecting and then letting the application decide what is the best was one of the example solutions I provided when I first asked the question. I wanted to know if there's another way, or a proper way of doing this.

0 Evan W over 7 years ago in reply to Leoni Mota Loris

TI__Mastermind 40450 points

Unfortunately, when you're a peripheral, if you had the right to refuse a connection, it would not be within the BLE Specification. Thanks for providing the feedback!

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CCS/CC2640: Make Peripheral connectable (or able to maintain connection) ONLY to SOME hosts (such as host_texas example).