Designing the firmware fault path: error vs fault, recovery worst-case timing, I2C bus recovery, supervised watchdogs and evidence that survives a reset.
Tag: STM32H7
RTOS Architecture: How to Design Tasks, Queues, Events, Timers and Synchronisation
Deriving an RTOS task table with rate-monotonic analysis, plus the three places the analysis breaks on real hardware — cache variance, sporadic load, blocking.
HAL vs BSP vs Driver vs Middleware: Where Should Firmware Code Actually Belong?
Where firmware code actually belongs: the reason-to-change test, peripheral vs device drivers, and eight boundary cases that get argued in every code review.
How to Design a Production-Grade Firmware Architecture
A production firmware architecture built end to end on STM32H7: task table, memory map, ownership matrix, dependency rules and error propagation.
