Schematic/Board with Eagle PCB

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jabidof

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eagle schematic pcb project

Hello everybody,
I'm using Eagle PCB software for a project. Once the devices are placed within the schematic, it is the time to draw the connections. For this, I use the "Wire" tool. Very surprisingly (there is probably something I'm doing wrong!), some of the wires are not connected to devices pins Stricly speaking, when I generate the "board" file, I get a lot of connections but not all the one I've draw in the schematic!

Is there a particular way to draw the nets in the schematic window to ensure they are still connected in the board view? For this particular design, I've got a chip with 4 VDD & 3 VSS.

Thanks for your help on this.

J
 

Check the grid size. Ususally a minimum value of 12.5 mil is sufficient. Never use the "Finest" resolution.
Make sure to use inch (mil) metrics in the schematics as the libraries are also done in this system. Don't use millimeter metrics here!
If you're not sure you can check a correct connection by moving the device: the wires are glued to it (press "Esc" if you're done).
 

sometimes, eagle cant really make the connections with the components due to too may components. if this happen, try using a double-sided pcb.
 


You will find good assistance on the Eagle forum ...
 

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