Requesting help from EAGLE PCB users

Jun 05, 2006 3 Replies
W

Hi all,



I'm using the EAGLE PCB layout editor and absolutely love it. It's so much easier than other software I've worked with. I am, however, running into a problem with TQFP packages and the autorouter. If I bring in a TQFP package (e.g. PIC18F65J10) and a 8 pin header and make



8 random connections from the PIC to the header, and then go into the "Board" mode and use the autorouter...it will not lay out the connections for me. However, if I take any DIL PIC package and mimic the above steps, it works fine.

I'm new to EAGLE and I'm guessing it has to do with my net width? I'm not sure though and would appreciate any help in the matter.



Thanks,



-weg



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B

There is a newsgroup named 'eagle.support.eng' which you might try for help on this topic.

Regards, Bodo

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J

Sounds like you have your routing grid set to course for the TQFP. Try setting the grid to 1/2 the pin spacing of the TQFP.

Also, Bogo's suggestion to try the EAGLE news groups is a good one.

James T. White
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G

You probably need to adjust the autorouter parameters (e.g. routing grid size, minimum trace width, etc.).

Net width?

That's what the cadsoft NNTP help groups are for. ;)

Grant Edwards grante Yow! KARL MALDEN'S NOSE at just won an ACADEMY AWARD!! visi.com
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