MCUBOOT FLASH overflow on nrf52840 dongle

RE: MCUBOOT FLASH overflow on nrf52840 dongle

Håkon Alseth — Mon, 13 Sep 2021 11:14:55 GMT

Hi Nikos,

Sorry for missing the board detail. By default, it uses the nRF5 bootloader, so mcuboot would be the second stage bootloader at this point, which isn't a great starting point:

https://devzone.nordicsemi.com/f/nordic-q-a/77252/nrf52840dongle_nrf52840-config_bootloader_mcuboot-y-partition-to-small

Kind regards,

Håkon

RE: MCUBOOT FLASH overflow on nrf52840 dongle

nik_mitros — Sat, 11 Sep 2021 12:36:04 GMT

Hello Hakon,

I dont think thats the problrem. I just tried to run the simplest blinky example with MCUBOOT and the same error appeared. The only thing I added to the prj.conf is CONFIG_BOOTLOADER_MCUBOOT=y.

I am guessing is some problem that has to do with the devicetree and the flash mapping of the nrf52840 donlge? Because when I run my application with MCUBOOT on nrf52840 DK everything works fine.

Have you tried to run the blinky example with MCUBOOT on nrf52840 dongle?

Regards,

Nikos.

RE: MCUBOOT FLASH overflow on nrf52840 dongle

Håkon Alseth — Fri, 10 Sep 2021 08:09:54 GMT

Hi,

[quote user=""]i encounter a problem on building my application that uses BLE and a I2C ssensor. If I build only the application without a Bootloader there is no problem. But when i added the MCUBOOT bootloader the build crush due to FLASH overflow. The ERROR I get:[/quote]

You are running out of space. Is there any functionality that you don't need? For instance using newlib and printing floats?

CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
CONFIG_NEWLIB_LIBC=y

Kind regards,

Håkon