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<div class="moz-cite-prefix">Phillip Harbison:<br>
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<blockquote
cite="mid:a63bf61f-5a28-a3a7-5a91-4356d8158af2@xavax.com"
type="cite">Here's an example of routing a bus with 4 signals. It
gets much
<br>
worse with larger buses. If you're trying to weave a 16-bit bus
<br>
between the pads for RAM chips, the extra space for 90° angles
<br>
is almost prohibitive.
<br>
</blockquote>
<br>
It may not be a valid concern to some - but the 90 degree routed bus
also *looks* bloody atrocious. Maybe it's one of my numerous quirks
- but I enjoy looking at nice layouts ;)<br>
<br>
<blockquote
cite="mid:a63bf61f-5a28-a3a7-5a91-4356d8158af2@xavax.com"
type="cite">
<br>
Regarding red/blue, I've only watched one layout guy at work.
<br>
He did red/blue with colored pencils on ordinary graph paper.
<br>
This was to plan the layout. Afterwords he created the layout
<br>
on semi-transparent (cloudy) mylar using black tape. He had a
<br>
variety of tape in various widths. This was early in my career
<br>
(maybe 1980-1983). ECAD was already taking over by 1983.
<br>
<br>
<br>
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</blockquote>
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