Write only a part of the flash

[alexandruradovici]

I am trying to flash the MCU storage only partially. As there does not seem to be any function that allows flashing at a certain address, I tried to use a hex file. The hex file has one section of 0x800 bytes starting at 0x4000. The file is flashed ok and I can read the correct data back.

I am facing a problem tough, it seems that the flash memory up to the hex starting address gets corrupted.

Any suggestions would help. Thank you.