Hi, in my current project at work we see a strange behavior when flashing the controller with the Segger J-Link, as it erases (or writes 0xFF) to memory area(s) which aren't defined to be programmed in the flashed Intel Hex-file. Target processor is STM32 F407IGT6. We have a minimal software (called backup-firmware in the memory layout graph) which basically manages entry to the controller's bootloader, CRC-check and some other small things. Also there's a block Main SW (main application) and an…