How to Advertising and Scan at the same time

[xu]

I am now using 52832 to do a project, need to send a BLE broadcast package first, and then start scan, what examples can I refer to?

Attachment is my TX/RX process，and I need to implement the device B

[endnode]

The exact timing doesn't make much sense and you might get some troubles catching exactly 2ms delay but it should be possible after some fight with the code and testing. When it comes to dual roles you just need to implement both GAP Peripheral and Observer/Central. There are dual BLE role examples in the SDK, you might like BLE relay but in the end you will probably arrive to your own FW code just slightly inspired by these...

[endnode]

Still what is the meaning of these arbitrary delays? There is nothing like this defined in BT SIG Core spec so why you need them? And if Device B simply follows the spec and logical implementation of BLE functions why just don't use it (meaning it will "listen" sooner then that 1ms after Tx window - whatever that Tx window is - and it might be listening longer)?