[PCB_FORUM] Re: package order

Hi Carlos,

First of all, why do you have a need to re-order the REFDES in schematic ? 
MFG and Test prefer to have it done at the board level since it will be 
easier to find a part during debug.

For some company, the REFDES re-sequence is done in the geometrical order 
(A,B,C ... in Column and 1, 2, 3 in Row). For others, re-sequence in 
Reading Order (Left to Right and Top to Bot) is another choice. 

The board is then "back-anno" to the schematic to update with all the 
REFDES changes. 

Thanks and Regards,

Marcel Tran C.I.D.
IBM Corp.
Off. 919-254-1014
"Let's work Smarter, not Harder..."



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[PCB_FORUM] package order







Hi people,

does anybody know what is the order the packager follows to assign REFDES 
to
the instances drawn in Concept?

If I place many Capacitors on a page does it assign C1, C2, C3... 
following

a) instance number?
b) geometrical rules?
c) the order I drew the capacitors?

It becomes specially complicated to follow when I use hierarchies.

It seems to fulfill complete hierarchy levels before going down into the
next one, but I don't get what block is packaged first if there are 
several
on the same page.

I have been playing around with the Module_order menu but it does not seem
to control it.

Any idea?

Carlos Belío
Hardware Engineer
Telnet RI

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