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geda:gnetlist_ug:basic_netlisting

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geda:gnetlist_ug:basic_netlisting [2012/11/17 08:27]
peter-b
geda:gnetlist_ug:basic_netlisting [2012/11/17 10:29]
peter-b
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 If two components in the same circuit have the same "​refdes",​ then gnetlist will merge them (i.e. it will treat them as being the same component). ​ This behaviour enables [[slotting]]. It also allows you to split complicated components with very many pins across several pages, by using different symbols for different sections of the component. If two components in the same circuit have the same "​refdes",​ then gnetlist will merge them (i.e. it will treat them as being the same component). ​ This behaviour enables [[slotting]]. It also allows you to split complicated components with very many pins across several pages, by using different symbols for different sections of the component.
  
-Nets can be named by attaching a "''​netname=''"​ attribute to a net segment. ​ All net segments attached to the segment with the attribute will then share the same name.  If two nets in the same circuit have the same "​netname",​ then gnetlist will treat them as being connected. ​ If two connected nets have different "​netname"​ attributes, then gnetlist will merge all the nets with either of those names together.+Nets can be named by attaching a "''​netname=''"​ attribute to a net segment. ​ All net segments attached to the segment with the attribute will then share the same name.  If two nets in the same circuit have the same "​netname",​ then gnetlist will treat them as being connected. ​ If two connected nets have different "​netname"​ attributes, then gnetlist will merge all the nets with either of those names together.  If a net doesn'​t have a "​netname",​ gnetlist will automatically generate one.
  
 <note important>​gnetlist currently ignores buses and bus pins.  You can still use them in your schematic diagrams, but they will not be used for netlist generation.</​note>​ <note important>​gnetlist currently ignores buses and bus pins.  You can still use them in your schematic diagrams, but they will not be used for netlist generation.</​note>​
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 There are additional requirements if you want to make use of gnetlist'​s [[hierarchy]] or [[slotting]] support. There are additional requirements if you want to make use of gnetlist'​s [[hierarchy]] or [[slotting]] support.
 +
 +==== Attribute promotion ====
 +
 +gnetlist supports //attribute promotion//​. ​ When looking for a particular attribute from a component, it will check attributes attached to the symbol first, and then check unattached attributes in the component'​s underlying symbol. ​ This lets you provide default values for commonly-used attributes when designing a symbol, while still being able to override them while preparing the design.
geda/gnetlist_ug/basic_netlisting.txt ยท Last modified: 2012/11/17 10:29 by peter-b