Are SNES Controllers SPI Devices?

I’ve made a number of videos building a SNES controller interface for my system but along the way I’ve had a few comments from people claiming that the SNES controllers are “Just SPI Devices”. Now I have an SPI interface to the system I can try it out and answer that question! 0:00 Introduction 0:19 The Question 2:19 SNES Interface refresh 4:46 Interface discussion 5:22 A little Research 6:39 Direct Connection 8:13 Fail! 8:40 What went wrong? 9:15 What’s missing? 10:48 Coding support 13:18 Testing the new code 15:29 Patching the data in software 16:59 Outro 18:11 Extra graphical demo Links shown in the video: https://circuitcellar.com/research-de... https://en.wikipedia.org/wiki/Serial_... This video has a few stutters in the programming section, latest version of the software I’m using is creating them. I spent 3 extra evenings tidying most of them up but a few remain. At my wits end with this software now, going to take the plunge and buy/learn something new.