3 ms·
I would. Doing bitbanging reliably is easy only if you have single process running. But it might work if ISA card doesn't rely on clock being constant all that
by ilyt 4y ago
I would. Doing bitbanging reliably is easy only if you have single process running.
But it might work if ISA card doesn't rely on clock being constant all that much, then any jitter in CPU transfer shouldn't matter too much.
- polpo 4y agoISA is very forgiving timing wise. As long as you have the data on the pins when IOR or do your read by the time IOW is deasserted by the chipset you’re fine. And you can always deassert IOCHRDY and get all the time in the world to respond (within reason).