![]() ![]() But you should get one regardless if you plan on using prototyping boards or not, because you’ll either need to fix something you programmed at some point, or you’ll have to clear the chips you order since they’ve probably got something written on them. I use this thing a lot for trying out different games on my 27C322 EPROMs that I swap in and out of my prototyping boards so I don’t need to solder the chips in to try a game out. You do not need this if you plan on only using the surface mount EEPROMs. I’ll go over which one you might need for your project later on.ģ) EPROM eraser. I make these adapters, and can sell them to you over on my store page, or you can make your own, as I provide schematicsfor them. Other programmers like the GQ-4X4 can handle the 42-pin 27C series chips without adapters. ![]() They are not natively supported by the TL866, but we can easily add the functionality ourselves. If you want to use the 27C160 or 27C322, or the TSOP 29F016 or 29F032 on a TSOP adapter board, and you’re using the MiniPro, you’ll benefit from an appropriate programming adapter so that you can program these chips. EEPROMs don’t have a window.Ģb) TL866 programming adapters. Note that once you’ve programmed an EPROM, you should tape over the window to prevent any data corruption. Easy to work with, and can hold pretty much any game. The parts I most commonly use are the 32 Mbit through-hole EPROMs – the 27C322. In this tutorial, I will go over multiple methods of making games using 8 Mbit, 16 Mbit, and 32 Mbit through-hole EPROMs, and also using 32 Mbit surface mount EEPROMs. There are definitely benefits to either choice. EEPROMs, though, can easily be reprogrammed compared to regular EPROMs. ![]() Functionally, EPROMs and EEPROMs are nearly identical, and either can be used, though I usually stick to EPROMs because of the price and ease of use for the ones available to use with the SNES. If you have one of those other programmers, you’ll have to figure out how to use it yourself (though, if you’re reading this and you already own a programmer, you probably know what you’re doing anyway, nerd).Ģ) EPROMs or EEPROMS. ![]() I also purchased a GQ-4×4, which is a great higher-level programmer. There are other more advanced programmers out there, but they run a lot more expensive. The TL866 has worked flawlessly for me so far, even after many years, and it’s pretty easy to use. There’s an updated model, the TL866II Plus, and it seems to work just as well. Step 10: Finish your game Equipment you will needġ) Programmer. This is what you use to program the chips the game data is stored on. Step 8: Double check your chips, and prepare the board Step 5: Fix the checksum and remove the header Step 4: Determine which memory chips to use Step 2: Determine the method you will use There are some soldering skills required, and it might be frustrating at times dealing with older technology – you’ve been warned ! Table of Contents Luckily, the SNES cartridge is fairly straightforward once you know the basics way less complicated than NES cartridges! It is my hope that after reading this tutorial, you’ll have a good understanding on how to make your own SNES cartridges to use in your original SNES hardware. I’ve taken a lot of time to go through and learn all I can about how SNES games work, and I tried my hardest to make a comprehensive and easy-to-follow guide so you can learn a bit about them yourself. I am not responsible for any damage to you or your property – attempt these projects at your own risk! There are a lot of steps, and nearly all of them are crucial to get a working product. The instructions and products discussed are for the creation of homemade games only, or for repairing damaged cartridges for personal use, and should not be used for duplicating and distributing games protected by copyright. Disclaimer: This tutorial is for educational purposes. ![]()
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