ZSNES board

thanks for the offer. Unfortuantely, I don't have any boards or parts left at this point. I have enough practice where I can solder the stuff by hand now, so that's not a big issue for me anymore. I am almost done designing a daughter-board for the sparkfun xilinx eval board, so that I can test my d...

i ordered these boards from myropcb. it was a bit expensive (~120$ or so). The big issue is that the snes cart connector is thinner than the normal FR4, so a lot of the nice deals on the internet don't apply. As for 5v io, my current board is powered from the snes bus (5v) and uses a 3.3v regulator ...

err, i didn't want to spam, but since you asked, I am keeping a blog about my project at http://sneshack.blogspot.com/ There has been some progress since my last blog post. It's too bad that I have been short on time, and haven't done a proper write-up yet. Perhaps tomorrow. At the very least there ...

thanks for the tip, nightcrawler. So I guess my findings reflect anomie's docs. I've been talking to some people and i guess the solution is to trigger an interrupt from that cartridge pin periodically. During the triggered interrupt, i can feed the snes some code that will check the joypad and writ...

Hi again. I've been working on this and I have made a lot of progress. My setup right now is an FPGA that is connected on the SNES cartridge bus. I load the ROM from an SD card into SRAM, and then the FPGA maps the memory so that the SNES can play the game from SRAM. One of the features that I am st...

thanks for the warning, Nach. i just took a cursory glance with grep, so i'm sure i missed plenty. i think i understand the most obvious mirroring. it seems like lorom carts are traditionally wired so that the a15 line coming from the snes is skipped. so within a bank (which, as i understand is the ...

thanks for the advice. the easiest heuristic i can imagine is maybe scanning the rom before execution and looking for writes that would normally be mapped to rom. What are some other good heuristics to use? edit: I just looked at the source. It seems for non-special chip games, they always use banks...

Hi. I'm trying to build my own flash cart (mostly) from scratch (without an existing snes cart pcb) using modern parts. My goal is to eventually use an fpga to try and recreate some special chip functionality (perhaps using emulator source as a reference). Ideally, the only non-modern special chip r...