Good Morning,
I'm currently developing an application for the nRF54L15 where I only need to send single BLE packages,
therefore arising the need for keeping track of the number of packages sent which is not provided for default BLE advertising.
As far as I understand, the radio register offers event flags (e.g. EVENTS_END, EVENTS_PHYEND) which are set accordingly.
What I'm missing right now is how I can translate the event bit set to the execution of some task of mine.
What I tried is enabling the Interrupt via the INTENSET00 register,
and I am able to read the according Bit (NRF_RADIO->EVENTS_TXREADY) if an Event happened.
What does not work as expected, is the execution of my on_radio_event() method via the radio irq.
unsigned int irq = irq_connect_dynamic(DT_IRQN(DT_NODELABEL(radio)), IRQ_PRIO_LOWEST, on_radio_event, NULL, 0);
irq_enable(DT_IRQN(DT_NODELABEL(radio)));
// Enable Interrupt
irq_enabled = nrf_radio_int_enable_check(NRF_RADIO, NRF_RADIO_INT_TXREADY_MASK);
What Vidar Berg already pointed out in this topic (Link), the Radio IRQ is already used by the Bluetooth controller, therefore cannot be used another time.
Can someone point me in the right direction, e.g. how the subscription handling via dppi/gppi works?
The sample e.g. for ppi_trace seems to not be working for nRF54, whereas the suggested mpsl_pin_debug-subsys (Link) attaches a hardware pin,
but I do not see how I can trigger an ISR with this method.
Any help greatly appreciated 
Lukas
