Hello Norman, We have 5 protel(99se sp6) users here and use a centralised library model. SourceSafe (a version control system) is used to provide write access to the libraries (schematic or PCB), and only one user can have write access at a time. Once a library has been added to, it is "checked in" to the version control system, and a comment is made as to what has been added (or modified) to the library.
We also use an internal database system and give every single component a part number. For instance, our part number 6012-0401-00 is a "RESISTOR SMD 330R 0805 0.125W 1%" which you may have guessed is a 330 Ohm 0.125 watt resistor with 1% tolerance. This database information including supplier and supplier part number are put into the read-only fields of the schematic library part. The footprint is specified in the schematic library part as well - in this instance it would be a "RC0805N" footprint. Putting in new resistors or caps usually just involves copying an existing one, and updating our and supplier part number and descriptions in the read only fields, and renaming the new part - it doesn't take that long. Adding unique semiconductor parts doesn't take much longer at all. Whether you put part number information on individual An example of the above mentioned resistor in our resistor library: Schematic part name: "330R SMD 0805 1% 6012-0401-00" Component Text Field Default Designator: "R?" Component Text Field Footprint1: "RC0805N" Component Text Field Description: "RESISTOR SMD 330R 0805 0.125W 1%" Library Text Field 1 (our part number): 6012-0401-00 Library Text Field 2 (supplier): Farnell Library Text Field 3 (supplier part number): 360-1663 We find this system to work quite well. At first it may seem quite onerous as libraries are built up. However, advantages are assembly drawings and parts lists are generated very very easily. Component supplier sourcing is done once. We used to find ourselves searching for parts and suppliers time and time again that someone had already done all the leg work for. Now we do the component sourcing once, and just plug all that information into the libraries and it eliminates the duplicity of component hunting work we used to do. Using the library find feature in the schematic editor, it is quite easy pick out parts from the library that someone else has put in. Hope any of the above is relevant Norman. Cheers, Gareth. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, 17 June 2005 6:14 PM To: [email protected] Subject: [PEDA] Library organisation etc With the recent discussion that included libraries, updating them and old designs etc as part of it, I thought I'd ask a few questions separately to that. Here we usually have a library for each design database, this means each design is totally separate, there is no worry about updating components in a new design affecting the old, as their libraries are totally separate. BUT, this does mean a LOT of tedious copying across commonly used components between libraries when creating a new design. So, me and my colleague (only two Protel users here) wondered about creating a central library for all our designs. This sounds better, however I can find flaws in this also, such as when you require a custom footprint due to a particular layout for only one single design and also how to control the library for access, also us both ending up adding components in duplicate! I'm interested to find out how everyone else has their libraries set up and how it all works, pro's and con's etc. I also need to know how to set it up, will I need a separate ddb containing just libraries or just library files to import into each design? Either way I also need to maintain integrity of the library in the case a ddb goes corrupt aswell, as if all the components/footprints are only in the central library and it gets corrupted, I'm in for a lot of work! Thanks, Best Regards Norman Webster Development Engineer Gas Detection Systems -------------------------------------------------------------- Draeger Safety UK Limited [EMAIL PROTECTED] www.draeger-safety.com --------------------------------------------------------------- Draeger Safety >> Pioneering Solutions ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
