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What it means is that the N64 ROM data of the Gameshark program is split on those 2 EEPROMs. The clever trick those guys at Datel did is they took 2 EEPROM chips, connected one EEPROM's data bus to the 8 first data lines of the N64 databus and the second EEPROM to the remaining 8 data lines of the N64 databus, effectively covering the entire width of the bus. A single of these EEPROM chip couldn't work has they have only a 8 bits wide data bus. They each hold 1 megabit(128 kilobytes) of data. You can easily find the datasheet online. These are standard 8 bits wide, EEPROM devices made by the company SST.
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(fourth line is date code and not important here) Naturally, I then turned to the two EEPROM chips with the following markings: On top of that, there isn't much I could do with it.
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I suspected Datel wouldn't want to spend the extra money putting some flash or EEPROM memory in there in case they would ever want to update the microcode. Plus, an ASIC you'd want to keep cheap would not contain any reprogrammable memory array. In these case, it is extremely rare to find any information(datasheet) on such devices. It is most definitely a custom made ASIC for DATEL. I could not find any information on this device and for a reason. The next logical assumption was that one(or more) of the three integrated circuit were faulty.įirst suspect has the following markings: In my case, resoldering the board didn't do any good.
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If you want to tinker and don't care if you damage your N64 console you could try to "reconstruct" the connection pad using any type of conductive metallic adhesive compound. If they do are corroded, I would suggest to trash this gameshark.
![goodn64 rom set goodn64 rom set](https://retrododo.com/wp-content/uploads/2021/09/The-Legend-Of-Zelda-Waluigi-Of-Time-Mod-Best-N64-Rom-hacks-1-1160x653.jpg)
If the connection pads are not corroded, leave them be. Doing so would slighly increase the thickness of the board and could potentially bend connection pins in the cart connector inside the N64, preventing firm connections when carts other that this gameshark are inserted in the N64. It's important to never add solder to them. Just to be sure, I re-soldered all pins and pads, except the connection pads on the bottom of the board. No corrosion, no blown/cracked capacitor and no apparent cold solder joint. A thorough visual inspection didn't take to long and there was nothing out of the ordinary. In front of such bare circuit board, not too many things could be checked. Lastly, while CDs are very easily damaged and scratched, cartridges can last pretty much forever.ĭespite these unbalanced facts, along with a terrible controller (though it was the first successful system to use an analog stick and rumble, which makes emulation unsuitable for many games unless a joystick or joypad is used) the N64 is considered by many to be the best Nintendo system ever made due to it’s massive catalogue of innovative and fun games (in fact it was recently voted the best system period on G4Techtv’s Filter).Anyway, back on the subject. Also, extra RAM could be stored in cartridges allowing for more complex games (though the amount of RAM was obviously limited by cost). This is excellent from an artistic standpoint, particularly for large sprawling games like Legend of Zelda or Super Mario 64 which would be infernally dull if a new loading time was introduced every 5 seconds. So why did they use carts? Well, the most obvious advantage is the lack of loading times. Perfect Dark) and video quality couldn’t compare to the PSX. Finally, Audio was tricky to do well (though it was possible to do fantastic audio (i.e. Secondly, they are much smaller than discs, and games cannot span multiple carts which was severely limiting, particularly to RPG makers (though some great RPGs such as Paper Mario were made for it and resident evil 2 was successfully ported over on one of the later more advanced carts).
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Firstly, they are very expensive to produce (some say almost 25 dollars!) compared to the discs used in the PSX and the ill fated Saturn, which drove away many 3rd party developers. Ok so it’s not as controversial as the Virtual Boy, but there was one simple thing that set it apart: cartridges. The N64 is one of the most controversial consoles ever made.