zeta256
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Published
20 hours ago •
jmacarthur
jmacarthur
The Zeta minimal Z80 toggle-switch computer
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zeta256 issues
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Could you release the source image that you burned onto the top of the box?
!WR floats if BUSREQ is active and not pulled down by the front panel switch, so a 100k pull-up to 3.3V should be added. Because the Write button can be...
When BUSREQ is on (in front panel mode) the !OE line is floating so the memory chip could drive the data bus while the front panel is driving it. Add...