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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 1 Oct 2017
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      • Report NetzDG Violation

      Brainstorming an open FPGA breakout/devboard design with lots (>100) of I/O and USB. I should start writing a design doc soon...

      4 replies 10 retweets 42 likes
      Show this thread
    2. Hector Martin‏ @marcan42 1 Oct 2017
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      Probably iCE40 cased with a PCIe female edge connector to make it easy/cheap to build I/O modules for it. Think cheap PCB soldered to tgt.

      2 replies 0 retweets 6 likes
      Show this thread
    3. Hector Martin‏ @marcan42 1 Oct 2017
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      Use cases: system probing/reversing, cartridge emu, massive I/O (LED screen?), logic analyzer, memory dumping/programming.

      1 reply 0 retweets 5 likes
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    4. Hector Martin‏ @marcan42 1 Oct 2017
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      E.g. daughterboard provides 5V level translation, then uber cheap PCB-only frontends interface to every retro cartridge connector ever.

      1 reply 1 retweet 6 likes
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    5. Hector Martin‏ @marcan42 1 Oct 2017
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      Stick it into a console and it's an emu w/logic analyzer. Put a cart slot on it and you can use it to dump. Enough I/O left for capture.

      1 reply 1 retweet 6 likes
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    6. Hector Martin‏ @marcan42 1 Oct 2017
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      For GBA experiments I could hook up the entire cartridge connector, LCD connector (video capture), buttons and audio.

      2 replies 0 retweets 9 likes
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    7. endrift  🏳️‍⚧️‏ @endrift 1 Oct 2017
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      Replying to @marcan42

      You’ve got my attention

      2 replies 0 retweets 4 likes
    8. Hector Martin‏ @marcan42 1 Oct 2017
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      Replying to @endrift

      That was the orignal motivation :) (was considering using the twlfpga but I need more I/O).

      1 reply 0 retweets 2 likes
      Hector Martin‏ @marcan42 1 Oct 2017
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      Replying to @marcan42 @endrift

      I'm trying to spec it so I can throw some PSRAM on and meet timing while holding a full 32MB of ROM data.

      10:06 AM - 1 Oct 2017
      • 4 Likes
      • Jacob Soo 💖 FlanMaztæ666 💖 Jevin Sweval st4rk
      1 reply 0 retweets 4 likes
        1. New conversation
        1. Hector Martin‏ @marcan42 1 Oct 2017
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          Replying to @marcan42 @endrift

          @byuu_san might also be interested. Pretty sure you could simultaneously probe ~every bus on a SNES.

          2 replies 0 retweets 2 likes
        2. endrift  🏳️‍⚧️‏ @endrift 1 Oct 2017
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          Replying to @marcan42 @byuu_san

          I think @gekkio might have something like this for the DMG.

          2 replies 0 retweets 1 like
        3. Show replies

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