Flashing custom nRF54L15 USB module and DFU support

[peppercornsystems]

I am developing a custom USB module based on the nRF54L15 chip. I would like to know how I can initially flash firmware onto the board.

My plan is to have a custom bootloader so that I can later perform DFU over UART using nrf-util (if this is supported on the nRF54L15).

My main question is:

• Is it possible to flash my custom board initially using the debugger that is present on the nRF54L15 DK?

Any guidance on the flashing process and DFU support for this chip would be very helpful.

[AHaug]

Hello,

The nRF54l15 does not have a USB peripheral interface, thus USB DFU is not supported. If you're looking an implementation for the nRF54l15DK, then you may use DFU over UART through the debugger USB Interface (the one you power and program the nrf54l15 SoC through the debugger SoC).

Kind regards,
Andreas