Anonymous Coward wrote on 2020-04-03, 14:22:
There is an example of a Trio64V graphics adapter for PCMCIA (NOT Cardbus), which is more or less ISA for laptops.
It probably has a bridge chip to do this.
watlers_world wrote on 2020-04-06, 01:32:A good GUI accelerator?
Would a card like this work with a 286?
Are there 286 compatible Windows drivers with support for the GD […]
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A good GUI accelerator?
Would a card like this work with a 286?
Are there 286 compatible Windows drivers with support for the GD5434?
Could you use something like this?
https://akroncanton.craigslist.org/sop/d/lake … 7105438108.html
Is it good? Dunno, I need to make it first. 286 drivers? Not sure, but inf file mentions 286 grabber in it. And yes, PCI cards can be used as a backup source for chips.
I've completed drawing scematics and started working on PCB. This wasn't as easy as I expected - some parts of the tech manual conflict with itself, mainly about monitor detection. ISA scematics (made in 1993) suggests that only monitor ID pins can be used, and both STB & Diamond seems to followed this design. On the other hand same manual says that "heritage" monitor detection is not supported by Cirrus Logic and suggests using DDC2b only, which is a bit tricky with ISA configuration, but I hope I'll work. Also I've replaced original VGA filter with newer design.
Some other thoughts - VSA100 chips are still cheap, I'd love to make a Voodoo 4 PCI with DVI, but that's well over my skills.