GPIO on Hoa Nguyen — Embedded Software Architecthttps://hoanguyen.de/tags/gpio/Recent content in GPIO on Hoa Nguyen — Embedded Software ArchitectHugoen-usSat, 25 Jul 2026 00:00:00 +0000Interrupts on the i.MX RT1062: GPIO vs ADC vs FlexPWM, and Auditing Your NVIC Tablehttps://hoanguyen.de/posts/rt1062-interrupts-gpio-adc-flexpwm/Sat, 25 Jul 2026 00:00:00 +0000https://hoanguyen.de/posts/rt1062-interrupts-gpio-adc-flexpwm/The three interrupt sources follow one NVIC pattern but differ in where the trigger lives and how the flag clears. Plus the audit that matters: which of your ISRs sit above the FreeRTOS syscall barrier, and therefore must never touch a FreeRTOS API.