72 lines
2.6 KiB
Python
Executable File
72 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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import os
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import hammer_vlsi
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from hammer_vlsi import CLIDriver, HammerToolHookAction
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from typing import Dict, Callable, Optional, List
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def example_place_tap_cells(x: hammer_vlsi.HammerTool) -> bool:
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x.append('''
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# TODO
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# Place custom TCL here
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''')
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return True
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def example_add_fillers(x: hammer_vlsi.HammerTool) -> bool:
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x.append('''
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# TODO
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# Place custom TCL here
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''')
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return True
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def example_tool_settings(x: hammer_vlsi.HammerTool) -> bool:
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x.append('''
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# TODO
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# Place custom TCL here
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set_db route_design_bottom_routing_layer 2
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set_db route_design_top_routing_layer 7
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''')
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return True
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def scale_final_gds(x: hammer_vlsi.HammerTool) -> bool:
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"""
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Scale the final GDS by a factor of 4
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"""
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x.append('''
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# Write script out to a temporary file and execute it
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set fp [open "{script_file}" "w"]
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puts -nonewline $fp "{script_text}"
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close $fp
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# Innovus <19.1 appends some bad LD_LIBRARY_PATHS, so remove them before executing python
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set env(LD_LIBRARY_PATH) [join [lsearch -not -all -inline [split $env(LD_LIBRARY_PATH) ":"] "*INNOVUS*"] ":"]
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python3 {script_file}
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'''.format(script_text=x.technology.scale_gds_script(x.output_gds_filename), script_file=os.path.join(x.run_dir, "gds_scale.py")))
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return True
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class ExampleDriver(CLIDriver):
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def get_extra_par_hooks(self) -> List[HammerToolHookAction]:
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extra_hooks = [
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# Default set of steps can be found in the CAD tool plugin's __init__.py
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# make_pre_insertion_hook will execute the custom hook before the specified step
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hammer_vlsi.HammerTool.make_pre_insertion_hook("route_design", example_add_fillers), # SYNTAX: make_pre_insertion_hook("EXISTING_STEP", INSERTED_HOOK)
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# make_post_insertion_hook will execute the custom hook after the specified step
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hammer_vlsi.HammerTool.make_post_insertion_hook("init_design", example_tool_settings),
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# make_replacement_hook will replace the specified step with a custom hook
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hammer_vlsi.HammerTool.make_replacement_hook("place_tap_cells", example_place_tap_cells),
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# make_removal_hook will remove the specified step from the flow
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hammer_vlsi.HammerTool.make_removal_hook("place_bumps"),
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# The target step in any of the above calls may be a default step or another one of your custom hooks
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# This is an example of a technology-supplied hook (look in hammer/src/hammer-vlsi/technology/asap7/__init__.py)
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hammer_vlsi.HammerTool.make_post_insertion_hook("write_design", scale_final_gds)
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]
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return extra_hooks
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if __name__ == '__main__':
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ExampleDriver().main()
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