This program writes to 64 digital outputs on a Sealevel 463E I/O processor. Currently, the demo program exercises only the output channels by writing complex patterns to them, as can be observed visually when it runs. Future versions will feature expanded I/O capability, including reading from 32 digital inputs; the initial Visual Studio 2022 solution file is available here.
For a quick demonstration of this program in operation, please see this video. The story line may be a little thin, but the supporting cast is rock-solid.