lofig_list *ptfig ;
char type ;
double capa ;
losig_list *tcon, *bcon ;
const char *name ;
addlocap creates a new capacitor, and adds it to the
list of capacitors pointed to by ptfig -> LOCAP. The new capacitor is
added in front of the list, and becomes itself the list head.
The type parameter can take two values :
for a metal/metal capacitor (the top plate and the bottom plate layers are different metal layers)
for a POLY/NWELL capacitor (if available in the technology). The top plate layer is POLY, bottom plate is NWELL.
The capa argument is the capacitance value in Farads.
Two connectors are created each time a capacitor is added, and the
tcon and bcon losigs are attached to
the SIG field of the locon of the appropriate connector. The
connectors names are tcon (top plate) and bcon (bottom plate); their
direction, DIR, are set to P, and their TYPE INTERNAL.
For details on the structures, see locon(3) and locap(3).
void parallel_capacitors(void) /* netlist of two parallel capacitors */
lofig_list *pt = NULL ;
losig_list *in = NULL ;
losig_list *out = NULL ;
pt = addlofig("parallel_capacitors") ;
addlocon(pt,"in",in = givelosig(pt,0),IN) ;
addlocon(pt,"out",out = givelosig(pt,1),OUT) ;