mcuboot flash overflow on nrf52840 dongle

[Desmond G]

Hi, 

I am trying out the smp server example with mcuboot and encounter this error when building for the nrf52840 dongle.

I read that it has something to do with the usb bootloader. How do i navigate this issue?

Note: I am using Zephyr.

[Amanda Hsieh]

Hi, 

Seems you get a "FLASH overflowed" error from mcuboot, you can try to increase CONFIG_PM_PARTITION_SIZE_MCUBOOT to 0x10000 as explained in Device Firmware Update (DFU) with MCUBoot bootloader. Check the file <application>/<build>/mcuboot/zephyr/.config and confirm that CONFIG_PM_PARTITION_SIZE_MCUBOOT got the correct value.

Regards,
Amanda

[Desmond G]

i did increase the CONFIG_PM_PARTITION_SIZE_MCUBOOT to 0x10000, but whenever i try to build it revert back to 0xc000 for some reason

This is the config file i used

[Desmond G]

Nevermind. I managed to fix it. Right now i am having trouble with signing but i will post it on another ticket