[PCB_FORUM] CM Topology Assignment

  • From: "Chris Brennan" <Chris.Brennan@xxxxxxxx>
  • To: <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Thu, 13 Jan 2005 16:01:57 -0500

Hi All.  I'm having a problem with topology assignments.

When you have a topology with say one driver and 4 receivers and all 4
receivers are identical, with identical models, and I create a cset with
a specified schedule say;

U1 -> U2 -> U3 -> U4 -> U5

Now I apply this cset to a net that has devices, say:

U10, U11, U12, U13 and U14 (that I want ordered like that) the schedule
seems to be random since all devices are the same.  IE:

U10 -> U12 ->U13 -> U14 -> U11 

and the nextime you apply the topology it might be:

U10 -> U11 ->U14 -> U12 -> U13. 

I cannot use REFDES mapping mode since they are all different
components.  The other mapping modes behave the same.

Anyone have any suggestions?  (Besides using a user schedule).

Thanks for any help.


Chris Brennan, C.I.D.
PCB Designer
Fidus Systems Inc.
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