Using SPI CS alternate function or a simple GPIO output

[JuanjoAlm]

I just want to know about using SPI CS alternate function or a simple GPIO output. 

In my design I just have a pin with no SPI CS alternate function available, so could I use it as a simple GPIO output?

[Bubbles · Accepted solution]

Hi @JuanjoAlm ,

by SPI CS you mean "chip select" or in other words "slave select"? 

We call it NSS (negative slave select) and you can replace it with a GPIO without problem. Reference manual even describe some scenarios where it's actually recommended, like multi-master application.

BR,

J