STM32 SPI Interrupt Tutorial: Setup And Usage With Registers

In this tutorial I demonstrate how to set up and use STM32 SPI interrupts only using registers (no hardware abstraction layers, HAL) to communicate over the SPI. There are three types of interrupts for SPI: Receive buffer not empty interrupt Transmit buffer empty interrupt Error Interrupt I cover the registers required to set up each interrupt along with code demonstrations showing how to set them up and use them when using the Serial Peripheral Interface to communicate with other devices. The microcontroller used is the STM32L432KC but the registers, programming, and configuration are the same (or similar) across the stm32 boards. Timestamps: 00:00 - Interrupt Setup Stages 00:34 - Enabling SPI Interrupt In NVIC 01:38 - Interrupt Service Routine Definition 02:41 - Enabling Interrupt Request Generation 05:08 - Using The Receive Buffer Interrupt (Reading Data) 11:52 - Using The Transmit Buffer Interrupt (Sending Data) 16:38 - Using The Error Interrupt