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MAKE A SEGASATURN BUILT-IN MEMORY CART

tzmwx - Jul 28, 2022

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		Helder		Feb 20, 2023
			ChronoLe said: I waited for quite a few months to see if anyone would pick this up and no one has so I am looking into providing them for people pre-assembled so I will be needing the chips. I ordered some to try out and hopefully they work out, I will post info once I have gotten all parts in.

		cww80		Feb 20, 2023
			^ Shut up and take my money.

		nonosto		Feb 24, 2023
			ChronoLe said: it's the best, I follow it I have 2 sega saturn for install it.

		Helder		Feb 24, 2023
			nonosto said: I did see his video of this and if he releases the info or files like he has I will look into providing this as a complete board. Assuming we can get the required IC. Just in case anyone is wondering I do plan to give @tzmwx... a donation from my sales (once I have these built and working) since he did all the work of bringing this out to the community.

		tzmwx		Feb 24, 2023
			Helder said: sorry.2 in 1 is only designed for my SS Portablecompatible with VA6 710111315not for all motherboardand installation is very difficult.

		Helder		Feb 24, 2023
			tzmwx said: Could you release your schematic files like in the first post even if it is difficult. Also will the PLCC-32 memory chip be too tall when it is on the PCB and motherboard? I am finding these to be much cheaper in cost than the tsop version of AT29C040A and if they fit without issue I will go with these.

		tzmwx		Feb 24, 2023
			ChronoLe said: Hello Your SS motherboard is VA1

		tzmwx		Feb 24, 2023
			Helder said: TSOP FOR ALL MODEL PLCC not compatible with VA1VA3VA5

		ChronoLe		Feb 25, 2023
			tzmwx said: I can open it up and doublecheck tomorrow for you. Does it matter?

		tzmwx		Feb 25, 2023
			ChronoLe said: block the cart

		ChronoLe		Feb 25, 2023
			tzmwx said: I noticed the chips beneath when I was installing, but didn't really think about it. Could this be problematic in the future?

		tzmwx		Feb 25, 2023
			ChronoLe said: OK! Thank UThis is a VA1 motherboard No problem, but the PLCC chip will have an impact. The thickness is too thick

		cww80		Feb 26, 2023
			Received one of these from ChronoLe.... (2 business days California to Iowa) I installed it today and it's working perfectly. Auto switching and all. Buy with confidence.

		Helder		Feb 26, 2023
			tzmwx said: What is a good PCB thickness to not have any issues with height? I was thinking of 0.8mm to keep it low with the IC on top. Do you recommend the typical 1.6mm?

		tzmwx		Feb 26, 2023
			Helder said: 0.8mm or even thinner

		ChronoLe		Feb 28, 2023
			This mod coupled with the Fram chip makes the system much more accessible to people new to the Saturn scene. Especially if they want to stay stock and use the optical drive. A no brainer in my opinion. Much thanks again to @tzmwx...! I still have a few left over after my projects in case anyone needs it.

		tecnocris		Mar 9, 2023
			Hey everyone, I just wanted to say that ChronoLe got me one of these boards fast and for a fair price. Unfortunately for me the mod did not work out. I ended up having to remove it as it made my system stop functioning. I'm pretty sure I fried one of the chips when removing it from the original cartridge. I will try placing those chips back on the cart board again to see for sure, but my failure is not ChronoLe's fault. If you get one of these from him, you can trust that he's an honest seller.

		Landstalkerx		Feb 11, 2024
			I've made a few of these now with both used and new Atmel chips. If I pull Atmel chips from existing cartridges everything works flawlessly. However when I program Atmel chips with an Xgecu T56 programmer, the Saturn can read from them, but not write to them. This seems to happen regardless of the settings I try (ex. write protect on / off). After some experimentation I was able to fix this by "unlocking" the chips using the ram cartridge testing tool linked in the original post. I converted the ISO file to bin/cue format and ran the software from my Satiator to do this..

		ChronoLe		May 8, 2024
			Landstalkerx said: If you use the testing tool, does that do the work for you? Meaning, you don't have to program any of the chips before hand? Also, any chance you can let me know where you sourced your chips? A friend was trying to make some, but I think came across your same issues and he wasn't sure if he just didn't have all the right chips.

		tzmwx		Jun 3, 2024
			ChronoLe said: YesIf you use the testingtool, you don‘t need a programmer.

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