MCP23S17 ?

[bnymntrz]

Hello everyone, I have a question ,is there a library for mcp23s17 extander on the stm32f407 ?

[Tesla DeLorean]

Use Google or Github

Broaden your search, find something close, and port it to a specific model/family of STM32, or SPI equivalent from another MCU family.

Failing that, you or one of your software engineers, will need to read the manuals and code a solution.

​https://community.st.com/s/question/0D53W00001aIVhpSAG/using-stm32f407-and-mcp23s17-the-extend-of-ports