Genereting a PWM signal in Port 0 pin using GPIOTE + TIMERS + DPP

[Pablo-Focus]

Hi,

I would like to generate a PWM signal specifically on the P0.03 pin of the nRF54L15 using GPIOTE + DPPI + TIMERS.

As far as I’m concerned, Port 0 in nRF54L15 does not have a dedicated PWM peripheral for its pins, but it seems there is a workaround using the peripherals mentioned above.

TIMERS are supposed to be in the PERI PD. I believe I need to initialize two timers: one to handle the “on-time” or duty-cycle duration, and the other to define the PWM period. I also believe I need to connect them through PPIB22 so they can publish events to the LP PD GPIOTE30, which should toggle the P0.03 pin to emulate a PWM signal.

I would appreciate someone could guide me to implement this since I'm not being able to find examples to start with it.

I've seen the GPPI one to one example, yet it does not build for nRF54L15 as it is.

I'm using the nRF Connect SDK 2.9.0.

[AHaug]

Hi,

Just letting you know that your query has been picked up and we will look into it. I expect to have some more substantial questions/follow up comments early next week than this.

Thanks in advance for your patience.

Kind regards,
Andreas