CMOS standard cell characterization kit.
Project description
LibreCell - Lib
Characterization kit for CMOS cells.
Getting started
See install instructions in top-project.
Characterize a cell
The following example determines the input capacitances and timing delays of a combinational cell.
It is assumed that FreePDK45
is installed in the users home directory.
Required inputs are:
- --liberty: A template liberty file which defines how the cells should be characterized.
- --include: SPICE files or models to be included.
- --spice: A SPICE file which contains the transistor level circuit of the cell (best including extracted parasitic capacitances).
- --cell: Name of the cell to be characterized.
- --output: Output liberty file which will contain the characterization data.
lclayout --liberty ~/FreePDK45/osu_soc/lib/files/gscl45nm.lib \
--include ~/FreePDK45/osu_soc/lib/files/gpdk45nm.m \
--spice ~/FreePDK45/osu_soc/lib/source/netlists/AND2X1.pex.netlist \
--cell AND2X1 \
--output /tmp/and2x1.lib
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