Thanks Peter. That's what I like to do as well, but its takes a little more time to do and the customer is not always willing to pay for it. In this particular case, the customer made it the way it is and wants it that way, so the customer gets what the customer wants.
Jeff Condit ----- Original Message ----- From: "Peter Bennett" <[EMAIL PROTECTED]> To: "Protel EDA Forum" <[EMAIL PROTECTED]> Sent: Wednesday, September 08, 2004 2:50 PM Subject: Re: [PEDA] P98 SE Schematic ERC for Electrical Pin Types > Jeff Condit wrote: > > > Hi AJ! > > > > I meant P98SE. > > > > I guess what I was balking at was not being able to reconfigure a pin's > > electrical type from schematic. The reason is that generic PLDs don't > > really have an electrical type until they are programmed. Then the pins can > > become inputs, outputs, tri-state, or whatever you want. If in the library > > they are all just set to I/O, then the schematic reports a lot of warnings > > and can miss some errors. If you know what you want the pins to be (which > > is only sometimes the case) and can set the pin electrical types > > accordingly, then the ERC is much more meaningful. This could be done in > > the parts editor, but then the part would be wrong on other designs where > > the pins are used differently. Thus, the desire to be able to characterize > > them in schematic. > > > > Anyway, that was the thought. > > > > Jeff Condit > > For large programmable parts like Altera's FPGAs, I make a special schematic > symbol for each application, with the pins named and positioned (and set the > the correct type) to suit the application. I find it much easier to > understand the schematic with the pins named for their functions, rather than > all being called "I/On" > > -- > Peter Bennett > TRIUMF > 4004 Wesbrook Mall, Vancouver, BC, Canada > GPS and NMEA info and programs: > http://vancouver-webpages.com/peter/index.html > > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
