Fixing FreeRTOS Queue Overrun Data Loss in ISR Contexts
Queue overrun in FreeRTOS ISRs is a silent killer. The ISR fires, calls xQueueSendFromISR , the…
Embedded Software Technical Articles | embeddedSoft
Fixing FreeRTOS Queue Overrun Data Loss in ISR Contexts
August 19, 2026
4 min
Cortex-M Floating-Point Unit Lazy Stacking Optimization
August 19, 2026
3 min
Cortex-M Cache Maintenance for DMA Coherency
August 19, 2026
3 min
Editor's Pick
Optimizing Cortex-M Tail-Chaining for Sub-Microsecond Latency![Jithin Tom]()
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Debugging Production Firmware Issues: Field Diagnostics That Work![Jithin Tom]()
The device sits in a cabinet on a factory floor three time zones away. It reset at 3:47 AM. No one…
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FreeRTOS Queue Sets: Multi-Source Event Handling![Jithin Tom]()
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Whats New?
Cortex-M Floating-Point Unit Lazy Stacking Optimization![Jithin Tom]()
The Cortex-M Floating-Point Unit (FPU) is a critical accelerator for DSP, motor control, and sensor…
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Cortex-M Cache Maintenance for DMA Coherency![Jithin Tom]()
Cache coherency between CPU and DMA is one of the most subtle sources of data corruption in Cortex-M…
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Technical debt in embedded firmware isn't just messy code — it's the HAL layer that couples business…
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Zephyr PM Subsystem: Deep Sleep, Device Runtime PM, and Policy-Driven Power Control![Jithin Tom]()
Zephyr's Power Management (PM) subsystem is not a single feature — it's a layered architecture…
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Cortex-M Floating-Point Unit Lazy Stacking Optimization![Jithin Tom]()
The Cortex-M Floating-Point Unit (FPU) is a critical accelerator for DSP, motor control, and sensor…
August 19, 2026
3 min
Cortex-M Cache Maintenance for DMA Coherency![Jithin Tom]()
Cache coherency between CPU and DMA is one of the most subtle sources of data corruption in Cortex-M…
August 19, 2026
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Link-Time Optimization for Embedded Firmware Size![Jithin Tom]()
Link-Time Optimization (LTO) is one of the most effective levers for reducing firmware footprint on…
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Optimizing Cortex-M Flash Wait States for Performance and Safety![Jithin Tom]()
Flash wait states (access latency) represent one of the most critical hardware configuration…
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Firmware size constraints are a daily reality on Cortex-M0/M0+/M3 devices with 32--64 KB flash. The…
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Fixed-Point Arithmetic in Embedded C: A Practical Guide![Jithin Tom]()
Fixed-point arithmetic remains the backbone of deterministic embedded signal processing. While…
July 22, 2026
1 min
Optimizing Cortex-M Tail-Chaining for Sub-Microsecond Latency![Jithin Tom]()
Tail-chaining is one of the most underappreciated latency optimizations in the Cortex-M architecture…
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Cortex-M MPU Configuration for Memory Protection![Jithin Tom]()
The ARM Cortex-M Memory Protection Unit (MPU) is the primary hardware mechanism for enforcing memory…
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Zephyr RTOS provides powerful power management capabilities that enable Bluetooth Low Energy…
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SPI Slave DMA Implementation on STM32![Jithin Tom]()
When your STM32 acts as an SPI slave in a high-speed data acquisition chain — streaming ADC samples…
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Cortex-M SysTick Timer Configuration and Usage![Jithin Tom]()
The Cortex-M SysTick timer is the backbone of timekeeping in almost every RTOS and bare-metal…
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Fixing FreeRTOS Queue Overrun Data Loss in ISR Contexts![Jithin Tom]()
Queue overrun in FreeRTOS ISRs is a silent killer. The ISR fires, calls xQueueSendFromISR , the…
August 19, 2026
4 min
Zephyr PM Subsystem: Deep Sleep, Device Runtime PM, and Policy-Driven Power Control![Jithin Tom]()
Zephyr's Power Management (PM) subsystem is not a single feature — it's a layered architecture…
August 17, 2026
3 min
FreeRTOS Queue Sets: Multi-Source Event Handling![Jithin Tom]()
FreeRTOS queue sets solve a specific but common problem: a single consumer task needs to wait for…
August 13, 2026
3 min
FreeRTOS SMP: Multi-Core Task Affinity & Load Balancing![Jithin Tom]()
FreeRTOS SMP extends the single-core scheduler to multiple identical cores sharing memory. The…
July 30, 2026
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FreeRTOS Critical Sections and Synchronization Primitives![Jithin Tom]()
FreeRTOS critical sections are the most primitive synchronization mechanism in the kernel, yet they…
July 29, 2026
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FreeRTOS Heap Implementations Compared: Heap_1 to Heap_5![Jithin Tom]()
Dynamic memory allocation in bare-metal and RTOS-based firmware remains a polarizing topic. Safety…
July 14, 2026
5 min
Managing Vendor SDK Updates Without Breaking Embedded Builds![Jithin Tom]()
Embedded firmware projects often rely on vendor-provided Software Development Kits (SDKs) for…
August 20, 2026
4 min
Managing Technical Debt in Embedded Firmware: Incremental Refactoring Strategies![Jithin Tom]()
Technical debt in embedded firmware isn't just messy code — it's the HAL layer that couples business…
August 18, 2026
3 min
Debugging Production Firmware Issues: Field Diagnostics That Work![Jithin Tom]()
The device sits in a cabinet on a factory floor three time zones away. It reset at 3:47 AM. No one…
August 14, 2026
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Refactoring Legacy Embedded Code: Safe Strategies![Jithin Tom]()
Legacy embedded firmware is not simply old code—it is field-proven software that has survived…
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A/B vs In-Place Firmware Updates: Trade-offs for Embedded Systems![Jithin Tom]()
Firmware updates are a critical lifecycle operation for connected and mission-critical embedded…
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Embedded Firmware Code Coverage Analysis on Target Hardware![Jithin Tom]()
Code coverage on embedded targets has historically been an afterthought — something you run on the…
August 02, 2026
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