Tuesday, Oct 13, 2026 Week -- 20:27:23
A practical guide to communicating between Linux and an MCU with RPMsg, including one-way commands, periodic MCU telemetry, independent bidirectional traffic, and request-response settings updates.
Learn what hardware is required to run embedded Linux, including the role of an MMU, practical RAM and storage requirements, why standard Linux does not run on most Cortex-M microcontrollers, and when NOMMU systems make sense.
Understand why CPU clock speed alone cannot predict MCU performance. Learn how IPC, pipelines, memory wait states, caches, buses, compilers, and workload shape real embedded throughput.
A practical guide to the CoreMark benchmark: what it measures, how CoreMark/MHz is calculated, how it compares with DMIPS, and how to use benchmark results without mistaking them for application performance.
A clear, practical guide to CUDA and NPU hardware for AI and ML workloads, including what they are, how they are used, where they shine, and simple examples for GPU and edge inference.
Clear explanation of hardware FPU, VPU, NEON, and SIMD instructions and their massive impact on CPU performance. Real benchmarks, use cases, and comparisons showing 10-100x speedups in signal processing, graphics, ML, and math-heavy applications.
Complete guide to PWM (Pulse Width Modulation): how it works, frequency vs duty cycle, practical MCU configuration examples, real-world use cases including LED dimming, motor control, and DAC simulation. Clear explanations with working code.
Complete guide to DMA controllers in embedded systems: how Direct Memory Access works, when to use it, DMA modes and transfer types, practical configuration examples, and common pitfalls to avoid in production code.
A practical guide to choosing between ARM Cortex-M microcontrollers and Cortex-A processors for embedded projects. Learn the architectural differences, performance trade-offs, real-world use cases, and decision criteria for MCU vs MPU selection.
Deep-dive into DMIPS vs MIPS: what Dhrystone measures, why MIPS alone is misleading, how to interpret DMIPS specifications in MCU datasheets, and what these metrics actually tell you about real-world performance.
