Secure Boot and Firmware Signing: A Practical Guide for Industrial IoT Devices
A step-by-step walkthrough of implementing hardware-rooted secure boot and signed OTA updates on our NXP i.MX RT platform, with lessons applicable to any Cortex-M device.
Category: Embedded
Rust on Bare Metal: Rewriting Our Bootloader Without a Single Page Fault
Why we rewrote Tainuo’s MCU bootloader in Rust, eliminating an entire class of memory bugs that had plagued firmware OTA updates for years.