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I'm not sure if the boards are even the same size and have mounting holes in the same place. The power supplies are different and I'm not sure one will physically fit in the case of the other. You will likely fry the motherboard if you attempt to use the wrong PSU. Also the connecter for the...

Thanks for that, that confirms my suspicions. I don't have enough Mac towers to check compatibility, but I'll probably try to make one for my Sawtooth. I wonder if anybody else would be interested. One thing that throws me off, though, is why Apple used a 70-pin connector for a serial port and...

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...

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...

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?

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...

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...

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

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...

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.

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

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

Internal Firewire would've made some sense for drives if it'd caught on, as an IDE replacement.

DIY Mac :lol:

Those two oscillators(?) in the top right of the photo don't like at all right.

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

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 :( (

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.

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.

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.