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A project log for ZAViouR Board - AVR/Z80 Hybrid

A Z80 experimenters board with a supervisory AVR and 64K of SRAM

Steve SmithSteve Smith 09/06/2015 at 11:100 Comments

I've been developing the next iteration of ZAViouR and it's first I/O Port. I will be adding a backplane but I want to get the first interface designed and working beforehand. This will enable me to test the connections are in the correct topology etc. I have designed a custom connector component for Eagle with mirrored connetions. If I hadn't done this, I would have had to of used the standard IDC connector with all the pins flipped. This looked especially untidy on the board preview and I wasn't sure it would solder correctly.

So here's the new layout of ZAViouR v1.02 and the I/O Port which is a single port version of Grant Searle's design. Once the I/O Port is proved, I will insert the backplane between it and ZAViouR. I'm intending the backplane to have at least 4 connectors on the expansion bus to accommodate 4 expansion cards.

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