BLE Advertisement Callback

RE: BLE Advertisement Callback

Einar Thorsrud — Wed, 25 Sep 2024 08:55:13 GMT

Hi,

You can refer to the PPI trace sample for how to get events from the radio via PPI (essentially triggering some task based on radio activity (in thi scase the READY event). But instead of toggling a GPIO pin via PPI, you want to trigger the EGU, so you nee to connect the PPI channel from the readio to a task on the EGU and enable interrupt for that. You can see an EGU example under modules/hal/nordic/nrfx/samples/src/nrfx_egu/.

Note that this will let you know whenever the radio is in use, you will not be able to distinguish between advertising, connections, etc.

RE: BLE Advertisement Callback

Dane du Plooy — Mon, 23 Sep 2024 10:49:12 GMT

Hi Einar

Thank-you for the response.

My apologies but I don't entirely understand your answer.

The linked Radio Notification page only seems to have details for a "Connect" event (which doesn't apply in my case).

Could you provide more details regarding "implement something low-level yourself, by connecting a radio event to the EGU to generate an interrupt"?

RE: BLE Advertisement Callback

Einar Thorsrud — Fri, 20 Sep 2024 12:22:07 GMT

Hi,

Radio Notification is comming back and is available in main. In the mean time Event triggers can do some of the job, as you write, not this. An alternative could be to implement something low-level yourslef, by connecting a radio event to the EGU to generate an interrupt.