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Post by Tamkis on Aug 3, 2014 12:07:38 GMT -5
Around 2006, I bought a 1st edition Sega Radica (with Sonic 1, Flicky, etc). A few years later, I picked up the real thing, a Sega Genesis, and have most of the games on the Sega Radica, so I do not have a need to keep the old Sega Radica. According to Devster's research, the device can have a Sega Genesis cartridge port installed on it, in order to upgrade it to play real cartridges and the Sega Genesis library. Does anyone know, have, or can write a tutorial on how to perform this upgrade? I would like to keep the Radica stock, but with just a cartridge port added on, instead of a portable device like Benheck has done. I plan on giving the upgraded Radica to a friend as a gift
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Post by GiGaBiTe on Sept 7, 2014 23:52:28 GMT -5
www.benheck.com/Downloads/RadicaCartridgeSlot.jpgJust start connecting wires from the ICs to the cart slot. You'll want to keep the wires for all of the address and data lines as short and as consistent a length as possible. While these older and slower systems are more forgiving of trace and wire lengths, it can still cause problems. To mod it the right way is going to be a considerable amount of trouble. You can just solder up the cart slot wires to the solder pads after removing the ROM, but not all games are going to work. For games like Sonic 3 and Street Fighter 2, you'll have to do the bank switching mod that Devster talks about: devster.monkeeh.com/sega/radica/#snkmodYou'll also probably want to do the sound mod to fix the horrible distortion (if it exists on your model.) You'll then have to worry about the line voltages. The old Genesis works on 5V logic, while the Radica works on 3.3V. This can cause erratic behavior on the 5V cart. You can try modding the Radica to run on 5V, but it will likely considerably shorten its lifespan, if not cause it to fail immediately. A really hacky solution would be to supply 5v to the cart and use resistors on all of the lines connected to the Radica to bring the voltage down, which may or may not work. If it were me, I wouldn't bother honestly. You can pick up Genesis consoles for next to nothing and modding them is far more rewarding than some poorly constructed knockoff.
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Post by rehome on May 26, 2015 0:25:42 GMT -5
Hi: As the cartridge, I have intention to make a good PCB with several EEPROM, at least 5 for each game Sonic. To give you an idea. I did something for a SNES game change two with 4 games EEPROM Reset pressing for two seconds. I have little knowledge of cartridges and EEPROM Mega Drive. I can help them with the world of electronics and microcontrollers. To give you an idea of a mini project. This is to ensure that change the game by pressing Reset the SNES, while shown with a 7-segment display order, and it remains in memory of PIC as last loaded game, that is, if you've played the game No. 3 , turning on the console the third game of the plate begins. Basic outline game changer. The yellow LEDs are connected to pins of the EEPROM to change the game. Schematic sketch SNES. Hex file of PIC16F88 [/ url] compiled.
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Post by nikita600 on Feb 23, 2016 8:12:27 GMT -5
hi, tell me how to get the signal to Latchi? I do not see him in the slot SEGA
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