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  1. Fluffy

    PGM single game PCB assembly and troubleshooting

    Did you burn the DDP P1 ROM as it is prepared by my script? The normal Mame ROM is encrypted, as it is used on PCBs that pass the M68k bus through the ASIC.
  2. Fluffy

    4 Player IGS PGM adapter (cable replacement)

    (bump, see update above.)
  3. Fluffy

    PGM Consolization Supergun

    New PCB day! Got version 1.1 of the breakout board. Now I need some time to test the audio and video circuits, and make any required adjustments before finalising the layout. (I already found that my Scart footprint needs some tweaks...)
  4. Fluffy

    Help identifying these parts CPS1 A board

    The last time I searched for matching ferrite beads for another another project I didn't find anything. The product number didn't come up anywhere, and there was no explanation which specs were required. If you can desolder the capacitor you can use something like this (random ebay and...
  5. Fluffy

    ST-V parts - need help to identify spares

    Also you've got to spend money on development, prototypes and manufacture, which is something many people underestimate... Right now I don't need a proper one, but I may get back to you if I get the adapter designed.
  6. Fluffy

    ST-V parts - need help to identify spares

    No kidding, they're expensive. I assume this is the correct type: https://www.digikey.co.uk/product-detail/en/sullins-connector-solutions/GBB91DHHD-S621/GBB91DHHD-S621-ND/1464519 (And you've got to buy at least 10...) Too much for the dumping/testing jig I had in mind, but maybe this is useful...
  7. Fluffy

    ST-V parts - need help to identify spares

    By the way, is there a good source for the slot connector, or a way to bodge an existing connector to at least read the address/data part?
  8. Fluffy

    PGM Consolization Supergun

    Cool, that matches what I copied from the minigun schematic. I may have to shuffle the connectors a bit so it looks neat, but the design isn't final anyway.
  9. Fluffy

    Help with Top3000 Programmer Drivers

    I noticed they are just using libusb0, so I was always wondering if you could just use https://zadig.akeo.ie/ . Though if they have a certificate now this is not necessary any more.
  10. Fluffy

    PGM Consolization Supergun

    Do you have a link with the pinout? Does it have AC-Coupling capacitors in the cable, or do they need to be on the board? (Just a quick update: I am waiting for PCBs, I ordered the new JAMMA breakout board and a test version of the A/V circuit.) Edit: Copied pinout and stuff from...
  11. Fluffy

    Seta Aleck jamma board to Nintendo 64

    That's why I was asking... If I understand the CIC system correctly there are two (three) security methods: - a NES/SNES style cipher stream, without which the console locks up - a header checksum which is game specific - some additional challenge system used by later games At the moment: - the...
  12. Fluffy

    Seta Aleck jamma board to Nintendo 64

    Interesting... so which CIC is now actually used, the one from the original card or from the n64 card?
  13. Fluffy

    Seta Aleck jamma board to Nintendo 64

    I guess for the EEPROM you could use another microcontroller that implements the serial interface and stores the data in internal EEPROM or Flash memory, or translates for an external i2c EERPROM or SD card.
  14. Fluffy

    Seta Aleck jamma board to Nintendo 64

    I seem to remember hearing that the arcade version of the N64 uses a higher clock speed. Is that this board, or am I getting confused at my old age? By the way, found at least one seller: https://www.aliexpress.com/item/32835667519.html https://www.aliexpress.com/item/32816166068.html You've...
  15. Fluffy

    Seta Aleck jamma board to Nintendo 64

    As usual, I guess they got cloned CIC, or CIC from cheap sports games. There is also a clone of the CIC code for PIC or Atmel microcontrollers. https://github.com/mikeryan/UltraCIC Here are pictures of the two games I bought (Sin & Punishment and Bangai-O):
  16. Fluffy

    Seta Aleck jamma board to Nintendo 64

    There is a Chinese seller selling replica N64 carts on AliExpress. He uses a variant of this circuit to translate the N64 bus protocol for normal flash chips: https://github.com/hww/N64-Cartrige/blob/master/doc/SCH Circuit.PDF (Don't use the PCB dimensions from that site, they are quite a bit...
  17. Fluffy

    Sega ST-V XN1 card?

    Is this one of those "3V chips in a 5V system" cases? Also, I don't see any bypass caps installed...
  18. Fluffy

    Sega ST-V XN1 card?

    I just saw this on eBay, is this someone from here, or someone known? I was tempted to get it to look at it, but at that price I might as well get a Darksoft multi.
  19. Fluffy

    Reverse engineering 161 in 1 cartridge to change Rom games

    Just wondering, are game sorted by size? I wonder if you could optimise the layout to minimise product terms. Edit: Also, game-ids don't need to be continuous if you change the menu, which would probably allow some optimisations as well.
  20. Fluffy

    Reverse engineering 161 in 1 cartridge to change Rom games

    As I'm less experienced with this, what is the problem with NAND Flash? Too slow? You seem to get quite high capacity ones.
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