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3543ba65de
In netlist generation, changed the rule to calculate netnames of nets with labels:
Previously, named nets (i.e. nets with local, hierarchical or global labels) have their name
defined by the first label found in list.
So net names could be changed without really changing the schematic.
Now the names are calculated from the rules (by priority order) :
1 - use the most top level labels in hierarchies.
2 - use global labels first, local labels next (hidden power pins names are global labels).
3 - use alphabetic sort (so, if GND and AGND are connected, the net will be always named AGND,
and adding a VSS connection cannot change the net name)
So power nets and nets that have more than one label cannot have their netname changed
if there is no actual change relative to these nets names in schematic
112 lines
5.7 KiB
C++
112 lines
5.7 KiB
C++
/***********************************************************************/
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/* Class NETLIST_OBJECT to handle 1 item connected (in netlist and erc */
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/* calculations) */
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/***********************************************************************/
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#ifndef _CLASS_NETLIST_OBJECT_H_
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#define _CLASS_NETLIST_OBJECT_H_
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/* Type of Net objects (wires, labels, pins...) */
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enum NetObjetType {
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NET_ITEM_UNSPECIFIED, // only for not yet initialized instances
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NET_SEGMENT, // connection by wire
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NET_BUS, // connection by bus
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NET_JONCTION, // connection by junction: can connect to
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// or more crossing wires
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NET_LABEL, // this is a local label
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NET_GLOBLABEL, // this is a global label that connect all
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// others global label in whole hierarchy
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NET_HIERLABEL, // element to indicate connection to a
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// higher-level sheet
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NET_SHEETLABEL, // element to indicate connection to a
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// lower-level sheet.
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NET_BUSLABELMEMBER, /* created when a bus label is found:
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* the bus label (like DATA[0..7] is
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* converted to n single labels like
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* DATA0, DATA1 ...
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*/
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NET_GLOBBUSLABELMEMBER, // see NET_BUSLABELMEMBER, used when a
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// global bus label is found
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NET_HIERBUSLABELMEMBER, // see NET_BUSLABELMEMBER, used when a
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// hierarchical bus label is found
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NET_SHEETBUSLABELMEMBER, // see NET_BUSLABELMEMBER, used when a
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// pin sheet label using bus notation
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// is found
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NET_PINLABEL, /* created when a pin is POWER (IN or
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* OUT) with invisible attribute is found:
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* these pins are equivalent to a global
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* label and are automatically connected
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*/
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NET_PIN, // this is an usual pin
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NET_NOCONNECT // this is a no connect symbol
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};
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/* Values for .m_FlagOfConnection member */
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enum ConnectType {
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UNCONNECTED = 0, /* Pin or Label not connected (error) */
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NOCONNECT_SYMBOL_PRESENT, /* Pin not connected but have a NoConnect
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* symbol on it (no error) */
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PAD_CONNECT /* Normal connection (no error) */
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};
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class NETLIST_OBJECT
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{
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public:
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NetObjetType m_Type; /* Type of item (see NetObjetType
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* enum) */
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EDA_BaseStruct* m_Comp; /* Pointer on the library item that
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* created this net object (the parent)
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*/
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SCH_ITEM* m_Link; /* For SCH_SHEET_PIN:
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* Pointer to the hierarchy sheet that
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* contains this SCH_SHEET_PIN
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* For Pins: pointer to the component
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* that contains this pin
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*/
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int m_Flag; /* flag used in calculations */
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SCH_SHEET_PATH m_SheetList;
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int m_ElectricalType; /* Has meaning only for Pins and
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* hierarchical pins: electrical type */
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private:
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int m_NetCode; /* net code for all items except BUS
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* labels because a BUS label has
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* as many net codes as bus members
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*/
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public:
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int m_BusNetCode; /* Used for BUS connections */
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int m_Member; /* for labels type NET_BUSLABELMEMBER
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* ( bus member created from the BUS
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* label ) member number
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*/
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ConnectType m_FlagOfConnection;
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SCH_SHEET_PATH m_SheetListInclude; /* sheet that the hierarchical label
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* connects to.*/
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long m_PinNum; /* pin number ( 1 long = 4 bytes ->
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* 4 ascii codes) */
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const wxString* m_Label; /* For all labels:pointer on the text
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* label */
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wxPoint m_Start; // Position of object or for segments:
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// starting point
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wxPoint m_End; // For segments (wire and buses):
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// ending point
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NETLIST_OBJECT* m_NetNameCandidate; /* a pointer to a label connected to the net,
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* that can be used to give a name to the net
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* NULL if no usable label
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*/
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#if defined(DEBUG)
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void Show( std::ostream& out, int ndx );
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#endif
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NETLIST_OBJECT();
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NETLIST_OBJECT( NETLIST_OBJECT& aSource ); // Copy constructor
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~NETLIST_OBJECT();
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void SetNet( int aNetCode ) { m_NetCode = aNetCode; }
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int GetNet() const { return m_NetCode; }
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};
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#endif // _CLASS_NETLIST_OBJECT_H_
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