RE: upload new image via serial uart in mcuboot

Håkon Alseth — Mon, 20 Dec 2021 10:14:49 GMT

Hi,

Here's a thread on this matter, with an example project on how to enable the serial recovery:

https://devzone.nordicsemi.com/f/nordic-q-a/80870/fota-update-for-nrf9160-device-via-uart

For multi-image slots (dual banked), you can have a look at the smp_svr example:

https://docs.zephyrproject.org/2.6.0/samples/subsys/mgmt/mcumgr/smp_svr/README.html#building-the-sample-application

[quote user=""]1# what other configurations we need do set mcuboot using serial to upload new image in mcuboot? apart from CONFIG_MCUBOOT_SERIAL[/quote]

technically not much, you should configure the pin you want to assert to enter recovery via "CONFIG_BOOT_SERIAL_DETECT_PIN".

[quote user=""]2#which api in mcuboot use to write a new packet of image data in to flash area?[/quote][quote user=""]3#which api in mcuboot use to decode a new packet of image data ?[/quote][quote user=""]4#which api in mcuboot use to validate security feature of the new image file, signed or NOT?[/quote][quote user=""]5#which api in mcuboot use to jump to application[/quote]

You are asking very specific questions related to how mcuboot works under-the-hood, and most of this info can be read in the mcuboot documentation and running the example(s) to get familiar with mcuboot:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/mcuboot/design.html

Kind regards,

Håkon