Thread: Ortonview PCB
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Old 28th Jun 2021, 4:54 pm   #8
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,556
Default Re: Ortonview PCB

If you can rework things that fast we'll expect the finished PCB design shall we say...

...Thursday?

I was slightly thrown by the way the A... and UA... lines appear to converge in the same single wire/bus but I guess that's just Kicad's way of doing things, as the sources and destinations of the two groups of signals are indicated at the device pins themselves.

Mark: Notice that there are two address buses, the 'UA... bus and the 'A'... bus. I don't think they are actually connected together although they look as though they are. The only lines passing through the buffers are the UA... lines from the PIC, the 'A' lines I'm guessing go straight between the RAM and the System A... lines. (See above paragraph).
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