Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

RE: Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

Menon — Tue, 01 Jul 2025 11:43:18 GMT

Hello,

You're right, it is not exactly as you described, but it does use a single-slot DFU method. If you're interested in MCUboot's XIP (Execute In Place) mode, it also supports single-slot firmware updates without a backup slot. In this mode, the bootloader directly executes the image from the specified slot.

You can refer to the documentation on configuring MCUboot in Direct XIP mode. There's also a sample available that you may find helpful.

Kind regards,
Abhijith

RE: Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

Ozzy — Sat, 28 Jun 2025 09:11:01 GMT

Hello,

The example doesn't meet my expectations. I can only realize my idea by writing the BOOT on my own and recreating the flash partition.

Kind regards

RE: Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

Menon — Thu, 26 Jun 2025 09:57:30 GMT

Hello,

Thank you. Please let me know if the shared sample serves your purpose.

Kind regards,
Abhijith

RE: Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

Ozzy — Wed, 25 Jun 2025 01:06:09 GMT

Hi, Menon

Thank you for your reply. I'm using the SDK version V3.0.0.

RE: Inquiry on Using Primary Slot Only for nRF54L05 in MCUboot with SPI-based Firmware Update

Menon — Tue, 24 Jun 2025 15:47:26 GMT

Hello,

Which SDK version are you using here? I believe you can refer to the DFU over UART sample, which uses the serial recovery method. This allows for single-slot DFU and utilizes the CONFIG_MCUBOOT_SERIAL configuration.

Kind regards,
Abhijith