4.4. DRC
Hammer has an action for running design rules check (DRC) on a post-place-and-route GDS.
This action requires a tool plugin to implement HammerDRCTool
.
4.4.1. DRC Setup Keys
Namespace:
vlsi.core
drc_tool
Module of the DRC tool e.g.
hammer.drc.calibre
4.4.2. DRC Input Keys
Namespace:
drc
inputs.top_module
(str)Name of top RTL module to run DRC on. Auto-populated after par-to-drc.
inputs.layout_file
(str)GDSII file from place-and-route. Auto-populated after par-to-drc.
inputs.additional_drc_text_mode
(str)Chooses what custom DRC commands to add to the run file.
auto
selects the one provided in the Hammer Tech JSON.
inputs.drc_rules_to_run
([str])This selects a subset of the rules given in the technology’s Design Rule Manual (DRM). The format of these rules will be technology- and tool-specific.
submit
(dict)Can override global settings for submitting jobs to a workload management platform.
4.4.3. DRC Inputs
There are no other prerequisites to running DRC other than setting the keys described above.
4.4.4. DRC Outputs
DRC results report and database in
{OBJ_DIR}/drc-rundir
A run file:
{OBJ_DIR}/drc-rundir/drc_run_file
A script to interactively view the DRC results:
{OBJ_DIR}/drc-rundir/generated_scripts/view_drc
4.4.5. DRC Commands
DRC Command (after par-to-drc is run)
hammer-vlsi -e env.yml -p {OBJ_DIR}/drc-input.json --obj_dir OBJ_DIR drc