Package structure BLE Theory

[Giang]

Hi all , I am learning theory about BLE . I'm exploring the relationship between layer . But I am quite difficult to understand the package structure from upper layer to low layer . So , can you give me overview about package structure of each layer . Regards

[Matt]

Why not buy yourself a PCA10040 and start with the tutorials in devzone.nordicsemi.com/.../ ?

[Giang]

I've read it and Corev5.0 . But there are some problem I don't understand . About relationship package between ATT -> L2Cap -> HCI -> Link Layer

[endnode]

I'm afraid this screams for several days of training and mainly hands-on, this will hardly get explained in few lines on the forum;)

[Matt]

"Read" is not the same as "do"! We all "know" the path, but have you "walked" the path at all?

If you are still into reading, O'Reilly's "Getting Started With Bluetooth Low Energy" (www.amazon.com/.../ref=sr_1_1 should give you a good intro to the BLE stack and the GAP/GATT details that you crave...

[Giang]

Hi , I 've read 3 books is Getting Started With Bluetooth Low Energy, Inside Bluetooth Low Energy and Corev5 , so I know answer for my question but I want to ask to make sure I do not misunderstand . But , have a problem I really do not understand is : In pairing /bonding , LL connection will be encrypted then PDUs in Link Layer will be encrypted. So if do not pairing /bonding , LL connection won't be encrypted ? And only PDUs in Link Layer encrypted . Thank