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    Serial port for (early) New World Macs...

    Didn't the Stealth ports require an extension? I imagine that's what that did, then. Looking at the pictures in Bunsen's link, I am 99% certain it's just RS422 drivers or something equally simple (maybe the big one is for clock division). Also that the differences between the G3 and G4 versions...
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    Serial port for (early) New World Macs...

    The modem chipset is two chips, a microcontroller and a... something else. The interface between them is called datapump, but here the modem has both chips. The modems I pulled from the Sawtooth and Lombard are actually identical, and the remarks in the devnotes are the same (that theyre serial...
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    Lombard external monitor resolutions

    Hey. I'm using my Lombard with an external monitor, and I only get to pick up to 1280x1024 in the Monitors control panel. Do I need a different control panel or an extension or anything to enable the higher resolutions that Low End Mac suggests are possible?
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    Serial port for (early) New World Macs...

    The devnotes (found them on Preterhuman) unfortunately state quite bluntly that they don't contain the electrical or mechanical specifications. They do, however, say that the modem presents itself as a serial port that responds to the common AT commands, which fits with the fact that there's a...
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    Serial port for (early) New World Macs...

    Hello. I've been poking around my Sawtooth and Lombard, and I just now noticed that the modem in them is identical. I know that there existed boards for the PowerMac towers that added a serial port by replacing the modem and looking at pictures of the Stealth ports as well as the datasheets...
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    Lombard pram battery availability?

    Hey, great info, I had the exact same problem - are you quoting something?
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    Mac se30 GPIO ?

    The PDS slot is basically the memory and address lines drawn out. A card with some latches could give you something like GPIO and would be fairly simple for someone with some understanding of digital electronics to do. I have no idea about the software side of it, though. SCSI and Nubus would...
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    new 99 dollar 500mhz 68020?

    Same lot as that NatAmi thing, isn't it? If so I'd expect them to get it done. But not open, no, so Mac people can't extend it and it'll only support the boards they decide. Feels a bit backwards to me, but I suppose anyone still involved with Amigas must secretly love getting left high and dry.
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    new 99 dollar 500mhz 68020?

    What's the power and heat specs look like? FPGAs are hungry.
  10. P

    Lisa tear-down video

    Dave Jones takes us on a tour through the Lisa hardware:
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    G4 Sawtooth

    Internal Firewire would've made some sense for drives if it'd caught on, as an IDE replacement.
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    SCSI2SD Project - anyone interested ?

    DIY Mac :lol:
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    A Macintosh IIci and a Red Maxwell

    Those two oscillators(?) in the top right of the photo don't like at all right.
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    PS2 Keyboard on Mac Plus

    Nice! I'll checkout the code and give it a try. All it needs is two UARTS, right?
  15. P

    PS2 Keyboard on Mac Plus

    Been looking to build this since I thought I had the right Discovery board. Turns out the board I have has a 24MHz STM32F100 (128kb flash, 8kb RAM, 64 pin package). Is there a chance it'll work? I need it, since I seem to have lost my last ADB mouse during my last move :( (
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    SCSI2SD Project - anyone interested ?

    Depends on how much it relies on the specific features of the PSoC. If it's just bit-banging the GPIO, it should be doable, yeah. The STM32F4 core runs at 168MHz and has 80MHz GPIO... The Mac SCSI controller would likely be significantly slower than this, though.
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    SCSI2SD Project - anyone interested ?

    I did a quick speed test with a friend of mine with the STM32F4 with SD card connected using hardware 4-bit mode. We seemed to get 10 megabytes per second, DMA mode. You can get these with ridiculous amounts of GPIO in reasonably easy-to-handle LQFP packages.
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    Silent Macs

    I've run an LCIII fanless before. Wrote an essay for uni on it (c. 2008) so it ran for 8-12h per day for a week or so. No trouble.
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    PS2 Keyboard on Mac Plus

    Do you have any idea if this will work in an ADB chain? Like, PS/2 mouse -> ADB keyboard -> Mac?
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    Solid State Drive (SSD) in SE/30

    A few of the online retailers here list 4 and 8gb SATA SSDs, not cheap (certainly not for the amount of space) but not completely out of reach either. I would like to try this but I'm not sure I will ever get round to it...
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