Eagle lib creation - LQFP48 Pin Numbering

bob4432 wrote on Mon, 19 March 2012 22:25

I get P$1, P$2, etc for the pin

You forgot to give the pins explicit names in the symbol.

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Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

like this or something else, as I have it set to show pin and pad as I need

that for different setups of the stm32 chip:

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Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Oops, I should have said "package" instead of "symbol".  When you make the

package, you need to give each pad a name that will make sense when you go

to make the connection between the symbol and package in the device editor.

For IC packages, these would usually be pin numbers starting at 1.  When

you make the symbol, you give each pin a name that gives you a hint of its

function.  Usually it's best to use whatever name the datasheet uses so

people can clearly relate pins in your schematic to things described in the

datasheet.  In the device editor, you use the connect dialog to define the

binding between the logical pin names from the symbol and the physical pad

names from the device.  Your problem is you forgot to set the pad names in

the package so they are still the P$xx defaults.

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Thanks you sir, that was it

Olin wrote on Tue, 20 March 2012 12:11

Oops, I should have said "package" instead of "symbol".  When you make

the package, you need to give each pad a name that will make sense when

you go to make the connection between the symbol and package in the

device editor.  For IC packages, these would usually be pin numbers

starting at 1.  When you make the symbol, you give each pin a name that

gives you a hint of its function.  Usually it's best to use whatever name

the datasheet uses so people can clearly relate pins in your schematic to

things described in the datasheet.  In the device editor, you use the

connect dialog to define the binding between the logical pin names from

the symbol and the physical pad names from the device.  Your problem is

you forgot to set the pad names in the package so they are still the P$xx

defaults.

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Thanks you sir, that was it

Olin wrote on Tue, 20 March 2012 12:11

Oops, I should have said "package" instead of "symbol".  When you make

the package, you need to give each pad a name that will make sense when

you go to make the connection between the symbol and package in the

device editor.  For IC packages, these would usually be pin numbers

starting at 1.  When you make the symbol, you give each pin a name that

gives you a hint of its function.  Usually it's best to use whatever name

the datasheet uses so people can clearly relate pins in your schematic to

things described in the datasheet.  In the device editor, you use the

connect dialog to define the binding between the logical pin names from

the symbol and the physical pad names from the device.  Your problem is

you forgot to set the pad names in the package so they are still the P$xx

defaults.

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.