I'm designing a test/loopback board for a laser controller. I went to engineering school for five years for this?
Anyway, I need to verify the SPI interface on the DUT; it comes out on a ribbon cable for our customer to use. I was thinking that I could put the dumbest, easiest to program SPI part in the world on my test board, and let the uP in the DUT pound on it to verify the link. So, what's the dumbest SPI chip on the planet?