At 07:32 AM 3/29/2006, Greg North wrote: >Hi Kathy - if you give the pads on the switch, you want to be tied >together, the same numbers (ie two pin 1's) you can route them together. >The software doesn't know how many pin 1's or pin 2's etc. there should be >on a part.
Yeah, that's an easy way to do it, requires no special symbol in schematic. What happens when you have more than one pin does depend on version. In 99SE, as I recall, there was an oscillating behavior. When the net list was loaded, the pins would be correctly assigned the same net. If the net list was loaded again, the load routines would *unassign* the net. And next time, they would be correctly reassigned. If someone in your design process one net ended up with the net and the other without it, they would swap each load. It's easy to deal with, however, *if* you have a habit of *always* loading a net list and verifying no errors, or only known, understandable, and fixable and fixed errors, before you consider yourself done. It is not terribly difficult to drop a net assignment inadvertently, and there is nothing to catch this unless you reload or resynchronize. As I recall, the synchronizer in 99SE may have it right, the netlist load process still had the ping-pong assignment. Another method is to create a special symbol with all the pins. You simply wire the pins together on the schematic. Thus the implementation of this solution is the same as with multiple pins with the same name, you wire them together as part of your normal process. A variation on this is to drop one pin on top of another. I could explain how to configure this, it can be done so that all that is visible on the schematic is a connection dot, but a little experimentation will show you. I don't recommend hiding the pin, which would eliminate the dot. But the dot is useful, it tells the designer that there is something unusual here. ____________________________________________________________ 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]
