How to program stm32L552 using another microcontroller

[Gaganraj2002]

Hello,

I am using a Nucleo-L552ZE-Q board and I want to flash a hex file using another microcontroller such as Arduino Mega or Uno or Any. I Found AN3155 but not able to figure out so can I find an example or source code for STM32 bootloader IAP AN3155

Thanks in advance.

[Tesla DeLorean]

The protocol description really should be sufficient, and several examples of the implementation do exist for the cut-n-paste crew.

https://github.com/arduino-libraries/MKRWAN/tree/master/examples/MKRWANFWUpdate_standalone

https://github.com/stm32duino/stm32flash

[Gaganraj2002]

yeah, not actually cut-n-paste crew but learning stuff. I'm new to this stuff, anyways thank you for the help