invisible power pins on shematic

rickford66 wrote:

Hi,

Getting up to speed on Eagle. Almost done with my first design. Have

a question about power pins. On logic gates and such, the power pins

are "invisible". In order to connect them to the power and ground I

desire, the only way I've found to do it is to bring the power pins

into the schematic and connect them to the corresponding power and

ground. This leaves the pins visible on the schematic. Doesn't that

conflict with the idea that power pins are invisible? On my old DOS

program, I made the pins visible, changed their attributes so they

would connect to the appropriate net, then made them invisible again.

Can this be done in Eagle? Thanks.

Long story short. No.

If you organise your libraries to have pin names that match the power rail

names then the connections are automatic.

If the logic libraries have a VCC pin then provide a VCC power supply. In

this way  the power pins will connect automatically. If necessary give it a

explanatory +5v label.

If your libraries have a mix of power supply pin names then you will always

have to manage the result.

Power pins are not invisible in many instances. Often they are depicted in

an area of the schematic with their associated decoupling capacitor.

Warren

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Il 02/02/2012 21:33, Warren Brayshaw ha scritto:

Long story short. No.

If you organise your libraries to have pin names that match the power rail

names then the connections are automatic.

If the logic libraries have a VCC pin then provide a VCC power supply. In

this way  the power pins will connect automatically. If necessary give it a

explanatory +5v label.

If your libraries have a mix of power supply pin names then you will always

have to manage the result.

Power pins are not invisible in many instances. Often they are depicted in

an area of the schematic with their associated decoupling capacitor.

I would add that the invisible pins should be avoided because it is very

useful to know which pin is connected to the power supply, for debugging

and test purposes.

Marco

Il 02/02/2012 21:33, Warren Brayshaw ha scritto:

Long story short. No.

If you organise your libraries to have pin names that match the power rail

names then the connections are automatic.

If the logic libraries have a VCC pin then provide a VCC power supply. In

this way  the power pins will connect automatically. If necessary give it a

explanatory +5v label.

If your libraries have a mix of power supply pin names then you will always

have to manage the result.

Power pins are not invisible in many instances. Often they are depicted in

an area of the schematic with their associated decoupling capacitor.

I would add that the invisible pins should be avoided because it is very

useful to know which pin is connected to the power supply, for debugging

and test purposes.

Marco