Looking into N64 RDRAM
For no probably real useful reasons I've been working on an N64 emulator that I started a couple years ago and recently sort of picked back up. It's not that far along and maybe never will be. But while digging into information about the N64 something that's bothered me is the lack of measured real timing data from the system. Particularly for it's complex and lumbering RDRAM controller that has to serve a bunch of different sources (CPU, RSP, RDP, VI, PI, SI, refresh, etc), some I imagine must be higher priority than others. With the advent of FPGA N64 reproductions including commercially available ones like Analogue64 I kind of suspect there's been some work done somewhere, but I haven't seen it. So I was wondering, how hard would it be to try it myself? I've done a little bit of hardware testing/reverse engineering before, but not hardware inspection. So while I've done a decent amount of looking at electrical signals in oscilloscopes for other things...