[kicad-users] Anothere error msg

[[e-mail] [kicad-users]]

This message has come up a couple of times with a couple of components and I can't find what is causing it. The footprint imports ok but the traces are not there and in order to connect them I would have to turn of the erc. Associating the footprints to the components appear to go normally.

Error: Component 'Q1' pad 'D' not found in footprint 'TO_SOT_Packages_SMD:SOT-23



thanks and 73,

Peter
ve3poa

[Andy Eskelson [e-mail] [kicad-users]]

Prob a mismatch between the symbol and the module.

Check that the eeschema symbol and the footprint pin names match.

If the symbol uses 1,2,3, etc for the pin names/numbers then the
footprint must do the same. That's how kicad keeps track of the
connections.

As it's a likely to be a transistor (Q1) with a pad D I'll guess that
this is the drain on a FET type device.

Chances are that the module has used 1,2,3 rather than D,S.G


Andy



On 29 Jun 2017 22:01:50 +0000

Post by ***@gmail.com [kicad-users]
This message has come up a couple of times with a couple of components and I can't find what is causing it. The footprint imports ok but the traces are not there and in order to connect them I would have to turn of the erc. Associating the footprints to the components appear to go normally.
Error: Component 'Q1' pad 'D' not found in footprint 'TO_SOT_Packages_SMD:SOT-23
thanks and 73,
Peter
ve3poa

[[e-mail] [kicad-users]]

That was the problem. Mismatch.

thanks for the help.

Peter

[Andy Eskelson [e-mail] [kicad-users]]

Glad you found the problem...

Now is the time to ensure that you have set up your own set of libs and
mod files, and copied what you know is correct into them. then you only
use your own libs.

We keep on about doing this, with open source contribs and so on, you
cannot be 100% sure that the device/module is correct for YOUR needs.

Setting up your own is easy and avoids all sorts of future issues.

Andy


On 30 Jun 2017 18:11:00 +0000

Post by ***@gmail.com [kicad-users]
That was the problem. Mismatch.
thanks for the help.
Peter

[Peter Bennett [e-mail] [kicad-users]]

The schematic symbol for Q1 has a pin numbered "D", but the PCB
footprint does not. You may want to make a customized footprint to go
with that schematic symbol, with matching pin numbers. It is the pin
numbers, not the pin names, that must match. (and pin numbers can be
letters)

Post by ***@gmail.com [kicad-users]
This message has come up a couple of times with a couple of components
and I can't find what is causing it. The footprint imports ok but the
traces are not there andin order to connect them I would have to turn of
the erc. Associating the footprints to the components appear to go
normally.
Error: Component 'Q1' pad 'D' not found in footprint
'TO_SOT_Packages_SMD:SOT-23
thanks and 73,
Peter
ve3poa