I looked at the 82288 with my logic analyzer and realized that IOW and MEMR occurs simultaneously. So if MEMR and MEMW works well, but MEMR and IOW in combination doesn't...
Write zero directory does exactly what it sounds like, It zeros out the directory erasing all the files. Try N. Don't offhand know why you get that if the original instructions didn't get it.
I finally fixed it!! I looked at the 82288...
I finally fixed it!!
mrmanse Today, 04:34 AMI looked at the 82288 with my logic analyzer and realized that IOW and MEMR occurs simultaneously. So if MEMR and MEMW works well, but MEMR and IOW in combination doesn't...