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#010 Once you name a net (eg. once you create a net name, net label, port name, power net …), always copy and paste it’s name. Never re-write it manually.
Why? Because if you write it manually you can make a mistake.
TIP #009: Choose two or three biggest component suppliers and use them to select all the components for your designs
Why? It makes manufacturing easier.
Why? One VIA only can carry limited current (e.g. 1 – 1.5A).
Why? If you use a generic resistor schematic symbol, then always when you generate a BOM (Bill of Material), you will have to manually edit it.
Why? It’s a very simple way to identify power nets (especially in layout), makes it simple to filter or order power nets , it’s very simple to use them in rules
Why? Crosstalk depends on speed of rising / falling signal edge (how fast signal changes from low to high or high to low).
It takes just 15 hours to design your own customized Arduino. This is Lesson 7 of Learn to Design Your Own Boards Online Course. The course is step-by-step video which shows the complete Schematic Design & PCB Layout of Arduino like board.
More information about the full course can be found at http://www.fedevel.com/academy/online-want-to-design-your-own-arduino-board/
This video explains how to setup xSignals and do length matching in Fly-by & T-Branch DDR3 memory layout. It also shows how to setup xSignals with passive components (e.g. series termination resistors or AC coupling capacitors) + adds some comments on how xSignals calculates the length and what is useful about them.