This is simple test fw to controll an test LED via i2c controller
To build, clone the repository, open project with STM32Cube IDE.
Project has been prepared with IDE version 1.10.1, so it wasn't the latest. It's due to fact that I need to maintain some other projects.
Project wasn't tested in real enviroment so it may not work properly. I don't have access to PCA9633 dev board, so it's a first shot in solving this problem, based on information collected in datasheet.
camelCase notation used by ST wasn't followed for a reason, it's easier to track app code. It makes clear what does not comes from ST.