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Protel's Autoroute Rule Setup for High Density Design

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yangyunxing

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Protel has many rules, and often confilcts each other.
I meet a question about trace width rule.
for example: the trace witdth of net class D[0..16] is 1.3mm;
the whole board is 1.8mm. But actually D[0..16] is still 1.8mm.
I don't know why the added design rule is of no effect.
Besides I feel the FBGA components are very trouble Who can give me some
good advice about routing density pitch components just like FBGA.
I add one compent clearance rule, but it appears to no effect too.
 

P*otel's Autoroute Rule Setup for High Density Design

The rule priority will specify which one will be effective and chossen, but you need to revise the width 1.3mm or 1.8mm!!??
 

Your 1.3mm rule for the specific nets has to be the highest priority. The 1.8mm rule for "All" should be the lowest priority. To set the priorities, go to Design>Rules and click on Routing>Width. Then click on the "Priorities..." button at the bottom of the Design Rules window.

Note that I said the 1.8mm rule should be for "All". That is a requirement - see page 3 of help document "AR0128 Situs Autorouting Essentials.pdf" which you will find in the "Help" sub-directory of your installation.

You should also note that you cannot write a legal rule in the PCB Editor using bus notation. Your rule for D[0..16] has to be written like "InNet('D0') OR InNet('D1') OR InNet('D2')"...etc. The bus notation is only recognized in the schematic editor. Design rules in the PCB Editor have to be written net-by-net.
 

P*otel's Autoroute Rule Setup for High Density Design

Thank you, my friends. All people here are so warm hearted. It's impossible to get so good website like edaboard in China. Thank you again.
 

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