What pins are used for SPI on STM32?

Dec 22, 2025 · 1 min read · On STM32 there isn’t one single “SPI pin set” across all chips. SPI pins depend on the exact STM32 family/package and the pin alternate-function mapping. But the SPI signals are always the same: SCK (clock) MOSI (master out) MISO (master in) NSS/...