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--- asic:timing:start [2024/03/22 16:03]
rajit [Creating the timing graph]
+++ asic:timing:start [2024/03/22 16:06] (current)
rajit [Creating the timing graph]
@@ Line 28: / Line 28: @@
    - When the design has user-specified cells/black box cells, then ACT assumes that timing arcs could potentially relate any input pin of the cell to any output pin, and the arcs are computed based on those specified in the ''.lib'' file.
-Delays and transition times are added to the timing graph using information in the ''.lib'' file.
+Delays and transition times are added to the timing graph using information in the ''.lib'' file. Commands to read in ''.lib'' files are:
+^ Command ^ Meaning  ^
+| timer:lib-read <file> | This command reads in a timing ''.lib'' file, and returns a handle. This handle is used to refer to the information from the ''lib'' file that was read by the timing engine. |
+| timer:lib-merge <lh> <file> | This command takes an existing lib handle <lh>, and adds the contents of the ''.lib'' file to the handle |