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Eldo Netlist Setup<br />

Device Libraries<br />

Search Path Priorities Example<br />

The following example is related to search path priorities and shows the order in which<br />

directories are searched. If you have the following command in a netlist file:<br />

.LIB ./foo/myfile.lib<br />

and if in the library file myfile.lib, you have:<br />

.LIB toto<br />

then if file toto is not found in the netlist directory or parent directory, it is searched for in the<br />

current directory from which Eldo was started.<br />

In the case of a nested .LIB or .INCLUDE, the directory of the library file containing the .LIB or<br />

.INCLUDE statement is searched.<br />

Tip<br />

See “.OPTION SEARCH” and the “-searchpath” command-line argument in the Eldo<br />

Reference Manual.<br />

Related Topics<br />

Device Libraries<br />

Library Variant Management<br />

The .LIB command can be used to manage library variants such as “best,” “worst,” and<br />

“typical” process variations, also called device corners. Within the library, you must have<br />

sections defined by library variant blocks using the syntax:<br />

.LIB libtype<br />

* device corner specification<br />

.ENDL<br />

An example library file, mos_corners.lib, containing the device corners follows:<br />

lib case management<br />

.lib best<br />

.model MN nmos level=3 vt0=0.5<br />

.endl best<br />

.lib typ<br />

.model MN nmos level=3 vt0=0.75<br />

.endl typ<br />

.lib worst<br />

.model MN nmos level=3 vt0=1.0<br />

.endl worst<br />

134<br />

Eldo® User's Manual, 15.3

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