check_large_via_arrays
check_large_via_arrays
-lpp s_layerlpp
[ -output_lpp s_lpp ]
[ -region {f_xlo f_ylo f_xhi f_yhi} ]
[ -top_level_only ]
[ -annotate [ true | false ] ]
[ -clear_annotations ]
[ -annotation_limit i_count ]
[ -error_limit i_count ]
[ -check_mode [soft|hard] ]
[ -no_sync ]
[ -silent|-verbose ]
[ -trim_corners ]
[ -threads i_threads ]
Description
Checks for existing minLargeViaArraySpacing constraint violations on the given layer or layer purpose pair.
Arguments
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-annotate [ true | false ]
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Chooses whether to mark violations with annotations. The annotations are added to the annotation:violation purpose of the given layers and are listed by layer under Via Checks/Same Net Checks in the Violations page of the Annotation Browser. By default, annotations are created.
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-annotation_limit i_count
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Specifies the maximum number of violations to create annotations for. By default, annotations are created for up to 1000 violations. Specify -annotation_limit -1 to choose no limit.
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-check_mode {soft|hard}
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Chooses soft or hard constraint lookup. Default is hard.
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-clear_annotations
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Removes existing violation annotations of the same check type and input layers before performing this check. If not specified, existing violations are not cleared.
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-error_limit i_count
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Specifies the maximum number of errors to detect before stopping. By default, no error limit is set. A value of -1 also specifies no limit.
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-lpp s_layerlpp
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Specifies the layer or layer purpose pair to be checked.
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-no_sync
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Prevents the output layer from being immediately synchronized to the OpenAccess database; it will be synchronized when the design is saved.
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-output_lpp s_lpp
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Specifies the optional output layer and purpose.
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-region {f_xlo f_ylo f_xhi f_yhi}
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Specifies the boundary points for the area to be checked. If not specified, the entire design in the active artwork window is checked.
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-silent
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When specified, turns off all messages during the check.
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-threads i_threads
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Specifies the number of threads or processors to use in parallel to run this command. By default, if multi-threading has been enabled, the session threads are used, otherwise, one processor is used.
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-top_level_only
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Specifies that only vias associated with top-level geometry be checked (in other words, vias that are one level down from the top level). By default, all shapes are checked.
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-trim_corners
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Specifies that corners be trimmed for checking.
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-verbose
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Outputs a message for each error found during the check.
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Value Returned
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i_count
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Is the number of large via array same net spacing violations found.
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-1
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The command did not run due to a syntax error or a missing required argument.
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Examples
The following commands set the required spacing for 2x2 cut arrays to 0.2 and for 4x4 cut arrays to 0.22 on Via1.
set_layer_constraint -layer Via1 -constraint minLargeViaArraySpacing \
-hardness hard -row_name numCuts -OneDTblValue { 2 0.2 4 0.22 }
check_large_via_arrays -lpp Via1
Related Topics
Verify Commands
check_space
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