Many thanks for the info! The example about hierarchy design using ports, was pretty useful John.
On the other hand, I see that instead of applying a netname to every signal connected to an i/o port, I just have to add the pinnumber/label to the net= attribute of the port(The link was very useful Duncan, didn't see it surfing on the wiki brefore). So, now I know how to do it. BUT I feel like gschem could consider net=SIGNALX to be an implicit form of net=SIGNALX:1 since specifying a pin in a one pin symbol doesn't make much sense to me. I think this is a very simple feature to implement. Would be great if it does so. Best Regards, Felipe. -- Felipe De la Puente Christen Mobile Phone : +56 9 93199807 MSN/GTalk : fdelapue...@gmail.com On Thu, 2010-04-15 at 14:25 -0600, John Doty wrote: > On Apr 15, 2010, at 1:06 PM, Felipe De la Puente Christen wrote: > > > Hi, > > I did a design using input, output, and io ports based on the > > input-2.sym available in the library. I thought that the net attribute > > would make the net between the component's pin and the port to be named > > the same as the port's net attribute, but I was wrong and it's still > > necessary to put a netname on the nets involved to make the logical > > connection at the other side(another port + net + component's set). > > > > So the question(suggested by DJ) is: How are these input/output > > graphical ports supposed to work? Are they merely graphic things, or > > does that net attribute have a special/useful function? > > They are for hierarchy, not for making connections between sheets at the same > level. > > For connecting sheets at the same level, the netname attribute is the thing > to use. For clarity, I like to group such connections into busses (which in > gschem are just graphical). > > For hierarchy, match pinlabel on the symbol representing the subcircuit with > the refdes an the connection symbol within the subcircuit schematic. > > Here's a fragment of such a design. In particular, look at the DACtoClock > block on sheet 2 to see how hierarchy works, and the connections between > sheets 1 and 2 for usage of netname and busses. > > > John Doty Noqsi Aerospace, Ltd. > http://www.noqsi.com/ > j...@noqsi.com > > _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user