Re: Circuit Board Design Programmer with a "don't care"
- From: Paul Burke <paul@xxxxxxxxxx>
- Date: Fri, 23 Nov 2007 11:09:37 +0000
Tomás Ó hÉilidhe wrote:
I'm designing a circuit, and there's a couple of points in the circuit where I can't leave unused pins floating, so I either connect them to Vcc or to ground. What I would prefer though is being able to mark them as "don't care", meaning that they can be connected to _either_ of Vcc or ground, depending on which route is shortest on the circuit board.
Just leave them unconnected, route it, and when you've finished routing, look at the result and decide which to connect them to. The only danger is in forgetting to do it in the inevitable rush to finish, so a big yellow memo sticker on your monitor should help, if you've got room next to the dentist appointment, car tax reminder and reminder to buy flowers and a bottle of wine for the cat.
Yoiu could add them to a net thgat you deliberately don't route, or tell the autorouter to leave alone, so that there's always an unrouted net nag.
PB
.
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- Circuit Board Design Programmer with a "don't care"
- From: Tomás Ó hÉilidhe
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