Embedded Product – Infotech Developer
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
How to Design a Production-Grade Firmware Architecture
Embedded Firmware Architecture Fundamentals: How Engineers Actually Decide
Embedded DSA Interview Questions: Hashing and Complexity (Q219–Q248)
Firmware Architecture Interview Questions: 100 Q&A for Senior and Staff Engineers
Embedded DSA Interview Questions: Heap and Sorting (Q189–Q218)
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.
248 data structures and algorithms interview questions answered for embedded and firmware engineers, across seven parts covering C, arrays, lists, trees and more.
Most FreeRTOS synchronisation tutorials treat semaphores and mutexes as two flavours of the same thing — a binary flag you acquire and release. That framing
Most FreeRTOS queue tutorials stop at xQueueSend and xQueueReceive — the two calls that were never the hard part. They show you a producer task,
Most write-ups on event-driven firmware stop at the conceptual layer: events decouple modules, a queue holds them, a dispatcher routes them. That part is easy
Most “secure firmware update” tutorials stop at the part that was never hard. They show you the upload — image transfers over BLE or HTTP,
