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ADC and Firewire.

The card doesn't really need to be able to deal with the full 32-bit, does it? The driver just needs to be tweaked to understand the 32-bit environment and make sure the card is allocated memory space and buffers that it can reach. It's the same sort of issue as using 8 or 16-bit ISA cards on...

Nah, the hardware flow control lines aren't level shifted and exposed on TheOldNet modem. Out of the box it's 300 buad 8/n/1 and is wired to be a RS232 device (DCE) not a computer (DTE). I usually use mine plugged straight into a USB-Serial adapter with no cables or adapters. You do need to...

Hmm. I wonder if you can use memtest86 or memtest86+ on that machine and maybe get better diagnostics of the RAM. Do the serial numbers all read the same when it reads everything as 512M?

Pentium MMX 233. The first set is in a full screen command.com within Windows 98. The second set to "reboot to DOS mode" with a little overhead. It seems that most of the time on this machine is coming from print the digits to the screen...

I saved some Apple fiber channel DAC cables from recycling back in the day. A pair of them fit nicely in a USPS flat rate box ($10). DM me if you're interested.

I'm pretty sure that all of the USB to PS/2 adapters out there are purely mechanical. The mouse does all of the protocol switching. Maybe you could cannibalize an older PS/2 wireless mouse receiver but all of those were much larger than the current tiny usb receivers. Bastarizing the IrDA port...

The RentWare didn't start until after CS6 and if my memory isn't completely faded I don't think CS6 phoned home to activate. It just did a pre-internet era license code validation. I remember the start of the RentWare clearly because we had to hold back on CS6 for a year or two before Adobe came...

hmm, doesn't look like sync is dropping, just the video signal. I suspect that there's a transistor or amplifier chip taking the TTL signal from the logic board and generating the power for the electron gun.

Like BlueSCSI or RaSCSI config tools to set image attachments or configure the WiFi on a RaSCSI.

There's only one video signal generation circuit and thus one signal being generated. It's not like a modern machine where you have multiple RAMDACs outputting the same framebuffer data that you can split or redefine. There is only a single pin being twiddled up and down to fire the CRT's...

Something you might want to try is aquarium background adhesive, an optically clear gel for sticking decorative backgrounds on fish tank. It really makes the backgrounds pop compared to just taping the background on. It might make the LCD look shaper by filling the tiny air gap between the panel...

Progress! The C SDK is naturally much fiddlier than python so it took me a while to get the Arm code working. Also, I'm out of practice thinking about pointers for feeding the DMA engine. I now have it generating a 1024x768 signal from an in-RAM frame buffer. I need to wire up the capture part...

It's a tach output attached to a hall effect sensor, it has no control influence. You'd need a 4-wire fan to get the low voltage PWM speed control. Or you could add a mosfet inline with the input power to turn it off and on. Probably not worth it when you can just get a Noctua that has enough...

For the next iteration with pass-through support, do you think you can put in a switch or jumper to be able to use it as an analog board & CRT tester with the rp2040 generating test patterns?

acrobat.adobe.com. Sure, you have to pay the Great Satan Adobe, but it exists. The Acrobat desktop app does it too, probably with easier fine tuning. Those new document scanners that have popped up on a few channels look to be in the same ballpark of maturity. It might also be handy for those...

I finally got the code up on GitHub (https://github.com/crackmonkey/macvid). Fine tuning the timing was giving me a headache for a while, I think because the "Classic II Developer Note" timing diagram said that a scanline should be 49.93us but the blog post with oscilloscope screenshots I was...

2TB on an SE/30? Impressive ;)

I tweaked the full speed PIO program a little to make it assemble in circuitpython's assembler and to use delay cycles instead of repeated nops. It seems to be working. I also fired up a second State Machine to generate an HSYNC signal for it to respond to. I have python feeding this 177, for...

The word doesn't get pushed into the FIFO until it's "full", where "full" can be set from 1 to 32 bits. I was figuring on leaving it at 32-bits so a scanline would be 64 bytes, aka 16 words, pushed to the ARM core. A slight PLL tweak should provide an overclock to 125.33333 (off the shelf Pi...