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About L2CAP protocol with STM32 + BlueNRG

guillaume petitjean
Associate II
Posted on June 14, 2018 at 10:12

I'm new to BLE and I am confused with the L2CAP protocol. I've read the Bluetooth Core specification related to L2CAP and I understood that it provides in particular Segmentation and Retransmission capability ( which is the functionality I am interested in).

I've also found in STM32CubeL4 some code to implement the L2CAP related commands like Connection parameter Update Request.

What I don't understand is:

- is the L2CAP protocol fully implemented in the software provided by STMicroCubeL4 ? I didn't find the drivers or HAL doing that.

- how is the SAR functionality enabled by the Central host and the Peripheral host ?

#ble #l2cap
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