Electronics > Projects, Designs, and Technical Stuff
How to even start routing this?
Joanna_H:
Hi all,
Was just wondering how any of you would even start to attempt manually route this rather crazy board? I could just auto-route it (which does work.)
And yeah, not fully placed yet.....
Thanks for any advice.
Joanna_H:
Forgot to say, it's a two layer board.
martin1454:
--- Quote from: Joanna_H on August 02, 2019, 06:42:10 am ---Forgot to say, it's a two layer board.
--- End quote ---
Good luck! it is possible, but will take time! I would start by doing the simple connections (the straight from U22 to U18 and so)
Dubbie:
Just start.
basinstreetdesign:
If I was asking this question then I would have to conclude that I wasn't finished placing it. Placement generally takes more than half the total time. Shoot for the lowest average trace length no longer than about 3/8 of a boards side dimension. This is from Rents Reasoning. See here:
https://en.wikipedia.org/wiki/Rent%27s_rule down the page under "Rentian wirelength estimation".
But a bigger question may be "Why only 2 layers?"; the cost jump from 2 to 4 layers is not that bad anymore. Getting rid of the power and ground distribution from the signal planes is easily worth the cost.
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