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Interrupts on STM32 MCUs come in two flavors: internal and external. Both types of interrupts use the same core peripheral in the Cortex-M core: the Nested Vectored Interrupt Controller, or NVIC.
SPI itself sees significant use with larger-resolution displays and data storage, but many sensors like Bosch’s BME280 and related MEMS sensors also implement an SPI interface in addition to the ...