CC2640: BLE L2CAP signaling channel PDU identifier assignment

Lisa Ding

Part Number: CC2640

Hi Champs,

I check Bluetoth SPEC v5.0. For BLE L2CAP signaling channel identifier, I didn't see any description talk about how to assign identifier. I check example code which I didn't find how we assign identifier. I am wondering how to assign identifier. Use random value ? Could you please tell me ? thank you

packet format is shown below. thanks for your reply in advance!

over 7 years ago

0 RachelP over 7 years ago

TI__Genius 12815 points

Hi Lisa,

In the Bluetooth Spec v 5.0, information on BLE L2CAP Channel Identifiers can be found in Vol 3, Part A, Section 2.1.

Table 2.2 in that section shows that the CID for L2CAP Signaling channel is 0x0005. I hope this helps!

0 Lisa Ding over 7 years ago in reply to RachelP

TI__Expert 6525 points

Hi Rachel,
thanks for reply. For signaling channel PDU, CID is 0x0005 and there is a information payload which include identifier. Could you please tell me what number is for identifier ? thank you!

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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CC2640: BLE L2CAP signaling channel PDU identifier assignment