Cortex-M
STM32 Series #12: Optimization and Assembly in C
The compiler transforms code while preserving meaning — but forget volatile and it changes the meaning too. See how assembly changes between -O0 and -O2 with objdump, and close out 12 episodes with the ‘conditions for embedded mastery.’
作成: 2026-05-08
STM32 Series #10: DMA — Transfers That Free the CPU
Stop having the CPU send bytes one at a time — let DMA handle everything. By DMA-ifying UART transmission, the CPU is freed to do real work. Episode 10 builds intuition for throughput, latency, and bus contention.
作成: 2026-04-30
STM32 Series #9: Interrupt Design Anti-Patterns
printf in ISR, missing volatile, heavy processing, forgotten flag clear — we deliberately trigger every classic embedded landmine and watch them fail. Applies to Arduino, ESP32, Renesas, PIC — every MCU with interrupts.
作成: 2026-04-26
13-Part Series: The Embedded World Beyond Pointers
The next step after Arduino! Serious embedded programming with the STM32 microcontroller. Addresses, bits, and time — understand the essence of embedded systems step by step, building a solid mental model that applies to any platform.
作成: 2026-02-12 ・ 更新: 2026-04-08