bt_le_per_adv_sync_create() term event timing

[loquat]

My system is nRF52833 + nRF Connect SDK.
I testing PeriodicAdvertising with CTE.

After executing bt_le_per_adv_sync_create(), if synced is not completed for about 10 seconds, the term event seems to be called. Is this correct?
Also, is it written in the documentation?

[Simonr]

Do you still see this issue after adding the fix recommended by Hieu in  connectless CTE TX/RX problem ? 

Best regards,

Simon

[loquat]

The problem remained.

I would like to know what happens when the synced callback event does not occur for a certain period of time after sync_create().

I will upload the slightly modified source code.
TX:
Send Periodic Advertising (with CTE).
RX:
After receiving ExtAdvertising, execute sync_create() LED2 lights up
LED3 lights up when calling sync_cb callback
LED2/LED3 turns off when term_cb callback is called

Test method
1. RX startup
2. TX starts -> RX_LED2 lights up After a while RX_LED3 lights up (as expected)
3. TX power off -> RX_LED2/RX_LED3 goes off after 1 second (as expected)
4. TX start -> RX_LED2 lights up TX power off immediately (no callback sync_cb / RX_LED3 not up)
5. There are the following movement patterns
   a. RX_LED2 continues to light up
   b. RX_LED2 will turn off after 5-6 seconds

If (4.) is repeated, operation (b.) will occur.

In (5.), is the behavior in (a.) the expected behavior?

df_tx_3.zip df_rx_3.zip