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.
Embedded Product – Infotech Developer
OTA and Safe Firmware Update Architecture: Designing Firmware Updates That Cannot Brick the Device
Field Diagnostics and Firmware Observability: Designing Firmware That Can Explain What Went Wrong
Designing Firmware for a 10-Year Product Lifecycle: Maintainability, Obsolescence and Long-Term Support
Designing Firmware for Testability: Unit Testing, Mocks, HIL and Fault Injection
Firmware Security Architecture: Secure Boot, Firmware Integrity and Key Management
Firmware Error Handling and Recovery Architecture: Designing Embedded Systems That Know How to Fail
State Machine Architecture in Embedded Systems: Designing Deterministic Event-Driven Firmware
RTOS Architecture: How to Design Tasks, Queues, Events, Timers and Synchronisation
HAL vs BSP vs Driver vs Middleware: Where Should Firmware Code Actually Belong?
15 Firmware Architecture Anti-Patterns That Make Embedded Systems Unmaintainable
A production firmware architecture built end to end on STM32H7: task table, memory map, ownership matrix, dependency rules and error propagation.
How experienced engineers pick an embedded firmware architecture: the evolution ladder, a decision tree with real thresholds, and what to rank first.
Part 7 of the embedded DSA interview guide: 30 worked questions on hash tables, collision resolution, load factor, perfect hashing, Bloom filters, LRU caches and Big O analysis.
One hundred firmware architecture interview questions and answers across system architecture, RTOS vs bare-metal vs Linux, OTA updates and rollback, and bootloader design and secure boot.
Part 6 of the embedded DSA interview guide: 30 worked questions on binary heaps, heapify, timer queues, and every major sorting algorithm with the embedded trade-offs spelled out.
Part 5 of the embedded DSA interview guide: 35 worked questions on binary trees, traversals, diameter, LCA, serialization, BST insert and delete, AVL rotations and red-black trees.
Part 4 of the embedded DSA interview guide: 30 worked questions on stacks, shunting yard, stack overflow detection, circular queues, ring buffers, ISR to task handoff and RTOS queues.
Part 3 of the embedded DSA interview guide: 50 worked questions on recursion, stack depth, MISRA 17.2, singly and doubly linked lists, Floyd’s cycle detection, intrusive lists and pool allocators.
38 embedded arrays and strings interview questions: row-major layout, binary search, in-place rotation, safe string handling and memcpy vs memmove.
35 embedded C pointer and memory interview questions answered in depth: alignment, padding, volatile, function pointers and pointer corruption.