kicad-developers team mailing list archive

[Nick Østergaard <oe.nick@xxxxxxxxx>]

2018-01-10 20:45 GMT+01:00 Rene Pöschl <poeschlr@xxxxxxxxx>:

> On 10/01/18 19:54, Matthijs Kooijman wrote:
>
>> Hi Wayne,
>>
>> If the remapping algorithm cannot find the exact library match which
>>>>> is currently being used (and should be in the project library list or
>>>>> the cache) to provide the symbol, then there is no way to determine
>>>>> the correct library and therefore cannot be remapped.  It also means
>>>>> that your schematic is already broken.  This is why you should not
>>>>> skip the rescue feature.
>>>>>
>>>> I can't quite remember if I skipped the rescue dialog (quite possibly),
>>>> but I can imagine a user (such as me) would reason that there is no need
>>>> for rescueing symbols into a rescue library, since all symbols are
>>>> available in their newly set lib table.
>>>>
>>> The symbols in your legacy schematic are almost certainly not in the new
>>> symbol library table given the recent changes to the symbol libraries.
>>>
>> I was under the impression that symbols mostly got moved around, and
>> only some of them got renamed, but perhaps that impression is wrong.
>>
>> Very few symbols them selves have been renamed. We mainly moved them
> around to other libs.
> I don't know exactly how the remapping would handle that case. But worst
> case you can switch over to the new lib using a kicad 4 release and do the
> remapping after you transferred over to the new lib. (Don't try to do both
> at once. There is just more that can go wrong that way.)
>
> Be careful with libs that have symbols with invisible power pins in them.
> (logic libs) We eliminated these type of symbols and changed them to have a
> separate unit for the power pins. (Sadly ERC will not complain if you don't
> place the power unit down. So if you update to the new symbols and forget
> to manually place the power unit you will get a pcb that has ICs in there
> that are not connected to power.)


This last past paragraph sounds like a bug in the ERC. Without thinkting
too much about this use case, I think people would expect the ERC to
complain if only a partial symbol was added to the shematic.