nRF Desktop DFU from SPI

[gandyhuang]

HI,

I found that nrf Desktop (v2.9.0 nrf54L15) surport fwupd support, it's same with old  mcuboot DFU? and i want to upgrade from SPI, how can i do? is there any demo code?

[Amanda Hsieh]

Hi, 

Check out this NordicAcademy DFU with external flash course. 

Regards,
Amanda H.

[gandyhuang]

HI Amanda ,

 Thanks for your reply,  I have another host MCU (SPI Master)  conntect with nRF54L15 ( SPI Slave), so I need to upgrade the from host MCU  to nRF54L15

[Amanda Hsieh]

See this post. 

[gandyhuang]

HI，

I am using the desktop sample，and i find that ： there is a mcuboot_secondary_app img,and it's always need to  clean Secondary image slot each time when it flash code into the nrf54L15, how to disable "mcuboot_secondary_app "? I just want to flash "mcuboot+app ", thanks

[Amanda Hsieh]

To set the MCUboot mode of operations to single application slot, enable the SB_CONFIG_MCUBOOT_MODE_SINGLE_APP Kconfig option in the sysbuild configuration with serial recovery mode. You can refer to this course https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-1-dfu-over-uart/