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How can I know which PCB library the FOOTPRINT of a component in SCH corresponds to? [Copy link]

Excuse me

1. How to know which PCB component library the FOOTPRINT of a component in a schematic SCH corresponds to when generating a PCB diagram?

2. How to load two PCB libraries at the same time, and there are two components with the same package name? When generating the PCB diagram, how do you know which library to extract the package from?

3. After designing the drawing, if you want to change the FOOTPRINT of a component that has been added to the schematic diagram to a package in a library designed by yourself, how do you change it?

Thank you very much, and I await your reply.

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The package names of the components in the schematic diagram need to be consistent with the names in the PCB package library, and then the pins are matched on this basis. These are all done automatically by the software. What you need to consider is whether the package of the component in your schematic diagram is the one in the library. The component package name in the schematic diagram is guaranteed to be consistent with the name in the library and the pin order is consistent, then the network can be imported. I suggest you find a book to read.   Details Published on 2019-8-16 14:18
 

1w

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The schematic needs to specify the footprint of the component. If it cannot be found, it cannot be converted to PCB. If there are identical names, the previous library will be loaded first according to the order of the libraries.

Now some software such as AD allows the schematic and PCB library to be combined together, so that the problem of mismatch between schematic and PCB is less likely to occur.

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2w

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1. The pins of the component library in the schematic diagram and the package pin numbers must correspond

2. The software only recognizes one package

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2w

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3. After the schematic design is completed, or if you get someone else's schematic and want the component library in the schematic, you can select Design--Make Project Library

Including encapsulation library, just use it directly. Beginners should first learn the drawing library and encapsulation

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qwqwqw2088 posted on 2019-8-15 22:28 1. The pins of the component library in the schematic diagram and the package pin numbers must correspond. 2. The software only recognizes one package.
Thank you very much, but 1. The pins of the component library in the schematic diagram and the package pin numbers must correspond. There are many corresponding ones. For example, the three pins A in the former and BCD in the latter are completely corresponding. How does A know which one of BCD to use when generating the pcD diagram? 2. Do you mean that A can use the package 1 in the B library and the package 2 in the C library in the latter, and when the B library and the C library are loaded, A only needs to search for one corresponding package and other packages will not be searched.
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1. You can add the package yourself. The package in the library you add will be used when generating the PCB.

2. It is the same as the first question. Even if it has the same name, it will be extracted according to the position when you added it when you generated it.

3. Create a package library yourself, and then copy the package to it, or you can draw one according to the package data

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EEW2018 posted on 2019-8-16 07:23 Thank you very much, but 1. The pins of the component library in the schematic diagram and the package pin numbers must correspond to each other. There are many corresponding numbers, such as A in the former and B in the latter...

The package names of the components in the schematic diagram need to be consistent with the names in the PCB package library, and then the pins are matched on this basis. These are all done automatically by the software. What you need to consider is whether the package of the component in your schematic diagram is the one in the library. The component package name in the schematic diagram is guaranteed to be consistent with the name in the library and the pin order is consistent, then the network can be imported.

I suggest you find a book to read.

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