I'm trying to get back into the swing of bluetooth development, and right now I'm trying to find an overall ladder/timing diagram for a full bluetooth/softdevice transaction. What calls need to be made to configure and maintain a BLE link? What callbacks need to be registered? I have the example code, of course, but I'm trying to get a high level picture of what events mean and when they can occur. The old 'infocenter' documentation is now marked as unmaintained, so that's also unhelpful.