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I am trying to recover the lost files (design files such as schematic, layout, symbol) using Cadence Virtuoso IC6.1, I have to determine these "files' signature" for my partner to recover these data.
That is to say, to recover these data, I should know the file signature of the schematics, layouts, symbols of the block that I designs.
Any experience on this, or any hints, recommendations from you are highly appreciated.
Thank you very much!
I have no idea what you mean by this. What is the "file signature" you're talking about?
The "file signature" means the format of the file/data. As I lost the data (designs), the company (who is helping me ask us to determine the "file signature" of the data that helps them to recover the data better.
For you reference, please have a quick look: https://en.wikipedia.org/wiki/List_of_file_signatures
Thanks a lot!
OK, that's similar to the "magic" numbers used by the UNIX file command.
I'm not aware of any published information on the magic numbers/signatures for OpenAccess database files. Given that the file format is controlled by Si2, that might be the place to ask. I'll ask a little internally to see if anyone knows.
BTW, I moved this post into an appropriate forum, since the feedback, suggestions and questions forum is for non-technical questions about the forum system itself, not tools.
I should say that in general the files have the ".oa" suffix - but just restoring individual files is unlikely to be useful. CellViews contain a collection of related data, and you need the entire co-managed set, not just the main cellView database file.
Thank you Andrew,
Because the design data in Cadence IC 6.1.7 (we are using this vision), so all the design files are OpenAccess database files. I do not know which is the best way to achieve the magic number of the whole CellView. At the moment, I just open one design (block) with all of the related cellview (schematic, layout, symbol, etc;) to get their own separated magic number.
I very appreciate if there is any suggestion.
And thanks for moving the thread to the appropriate forum.