Firmware & Bootloaders

What runs before application code, how a device updates itself in the field, and the linker script details that decide where everything ends up in memory.

Read

60 min

Practice MCQs

25

Interview QA

25

Edition

v3

Editorial status

Reviewed

Relevant for

Embedded Systems Engineer

Scope: Current MCUboot design/imgtool/recovery guidance; RFC 9019 and RFC 9124; NIST SP 800-193; CMSIS-Core 6 reviewed 2026-09-04.