about detailed description for 9 states of peripheral connection event

[leopeng]

dear friends , within a peripheral connection event, 9 states is identified, as it is shown in the pic above(from s132 document). Can i get a detailed description about what work is done during each state ? for example,a detailed description for stage A):at the beginning of a connection event, the device wakes up and prepares the functions related to BLE standard, which are used during the communication, such as the logical link control and adaptation protocol (L2CAP),generic access profiles (GAP), generic attribute profile (GATT), security manager (SM), etc. regards.

[endnode]

These are power profiling stages related to internal processing of BLE stack (aka Nordic Soft Device). I doubt they will tell you any details (and even if so it will be hardly possible to distinguish which BT LE layer is exactly active when).

[leopeng]

thank u.It is about power profile state of softdevice.But i really want to know the internal process of each state, for a theory analysis.thank u for your answer.

[endnode]

OK, good luck with the request!

[Stian Røed Hafskjold]

Sorry, we can not give you any detailed description of this.

• (A) As you say, prepares what ever needs to be prepared for transmitting/receiving BLE packets
• (B) Starting the external HF clock, which is needed by the radio
• (C) Waits a certain time interval to be sure the HF clock is running and stable
• (D) Configures and starts the radio
• (E) Listen for (and receive data)
• (F) Configures radio for TX
• (G) Transmit packets
• (H) Any processing that needs to be done before the chip goes to sleep