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EAGLE is a scriptable electronic design automation application with schematic capture, printed circuit board layout, auto-router and computer-aided manufacturing features. EAGLE stands for Easily Applicable Graphical Layout Editor. This group will talk about the problems of using PCB software---Eagle.

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ERC problem of eagle schematic
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I have designed a circuit in Eagle 5.8.0 Professional, however when I tried to make an electrical rule check, there are almost 400 errors shown on the list. When I look at the errors, there seems no problems. Why did this happen?
Statement: This post is only the personal view of the author and does not represent the opinions of


You have run past the actual connection point causing a missed connections. You need to make the pins visible so you know where to connect then erase each overlapped trace and connect it to the pin. Try routing from the pin back to a trace instead of the


A common cause to that problem is when you use the "wire" command to connect components. Use the "net" command. It will help eliminate such overlaps.

Colin Durbridge

You can use the Eye tool to see what is connected where, you will find that none of those 400 pins are connected properly. I guess the basic problem is that you′re using too fine grid.

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