Tag
STM32
Technical notes tagged STM32.
2026-05-30
STM32 NVIC Priority Grouping: Why Your Interrupt Preemption Is Not Working as Expected
A practical STM32 firmware guide to NVIC priority grouping, PRIGROUP, preempt vs subpriority, the AIRCR register, and how misconfiguration causes priority inversion in production.
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2026-05-29
STM32 DMA Circular Mode with Double Buffering: The Pattern That Prevents Data Loss
Practical STM32 DMA double-buffering guide: circular mode, half-transfer interrupts, cache coherence on Cortex-M7, DMA mux, UART/ADC examples, and the anti-patterns I fix on client projects.
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