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A Lisa Inside An FPGA

Started by AlexTheCat123, September 04, 2025, 05:20:35 PM

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AlexTheCat123

Nice, I'm glad that was the problem!

That behavior is not intentional, but it aligns with what other people have told me. There's a 5V power line on the HDMI connector that's supposed to be supplied to the HDMI sink (the monitor) by the HDMI source (us). From what I understand, the monitor isn't supposed to supply any power of its own on this line, and mine doesn't which is why I didn't discover this during testing, but it appears as if a lot of other peoples' monitors do and that backflow is keeping the 5V and 3.3V rails just alive enough to keep the OLED and a few LEDs on. Don't worry about it though; it's not going to break anything.

ried

#316
Who's ready for some Twiggy COBOL? "Here we go..." :D

Pretty awesome to be able to experiment with Twiggy disk images without exercising and potentially damaging the original media. Thank you, Alex!

P.S. COBOL Workshop 1.0 ESProFile 5MB drive image attached, just in case someone wants to get down like that.

stepleton

At last a chance to come back from that time in 1999 when some hoser sniped me on a Cobol Workshop 1.0 auction on eBay!