sky130 tutorial initial modifications

vlsi/example-vlsi-sky130

@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+#
+# NOTE: the custom hooks are only used for sky130.
+
+import os
+
+import hammer_vlsi
+from hammer_vlsi import CLIDriver, HammerToolHookAction
+
+from typing import Dict, Callable, Optional, List
+
+from technology.sky130 import SKY130Tech
+
+def example_place_tap_cells(x: hammer_vlsi.HammerTool) -> bool:
+    if x.get_setting("vlsi.core.technology") == "sky130":
+        x.append('''
+# TODO
+# Place custom TCL here
+''')
+    return True
+
+def example_add_fillers(x: hammer_vlsi.HammerTool) -> bool:
+    if x.get_setting("vlsi.core.technology") == "sky130":
+        x.append('''
+# TODO
+# Place custom TCL here
+''')
+    return True
+
+def example_tool_settings(x: hammer_vlsi.HammerTool) -> bool:
+    if x.get_setting("vlsi.core.technology") == "sky130":
+        x.append('''
+# TODO
+# Place custom TCL here
+set_db route_design_bottom_routing_layer 2
+set_db route_design_top_routing_layer 5
+''')
+    return True
+
+def drc_blackbox_openram_srams(x: hammer_vlsi.HammerTool) -> bool:
+    if x.get_setting("vlsi.core.technology") == "sky130":
+        drc_box = ''
+        for name in SKY130Tech().openram_sram_names():
+            drc_box += f"\nEXCLUDE CELL {name}"
+        with open(x.drc_run_file, "a") as f:
+            f.write(drc_box)
+    return True
+
+def lvs_blackbox_openram_srams(x: hammer_vlsi.HammerTool) -> bool:
+    if x.get_setting("vlsi.core.technology") == "sky130":
+        lvs_box = ''
+        for name in SKY130Tech.openram_sram_names():
+            lvs_box += f"\nLVS BOX {name}"
+            lvs_box += f"\nLVS FILTER {name} OPEN "
+        with open(x.lvs_run_file, "a") as f:
+            f.write(lvs_box)
+    return True
+
+
+class ExampleDriver(CLIDriver):
+    def get_extra_par_hooks(self) -> List[HammerToolHookAction]:
+        extra_hooks = [
+
+            # Default set of steps can be found in the CAD tool plugin's __init__.py
+
+            # make_pre_insertion_hook will execute the custom hook before the specified step
+            # SYNTAX: make_pre_insertion_hook("EXISTING_STEP", INSERTED_HOOK)
+            # hammer_vlsi.HammerTool.make_pre_insertion_hook("route_design", example_add_fillers),
+
+            # make_post_insertion_hook will execute the custom hook after the specified step
+            hammer_vlsi.HammerTool.make_post_insertion_hook("init_design", example_tool_settings),
+
+            # make_replacement_hook will replace the specified step with a custom hook
+            # hammer_vlsi.HammerTool.make_replacement_hook("place_tap_cells", example_place_tap_cells),
+
+            # make_removal_hook will remove the specified step from the flow
+            hammer_vlsi.HammerTool.make_removal_hook("place_bumps"),
+
+            # The target step in any of the above calls may be a default step or another one of your custom hooks
+        ]
+        return extra_hooks 
+    
+    def get_extra_drc_hooks(self) -> List[HammerToolHookAction]:
+        extra_hooks = [
+            # This is an example of a technology-supplied hook
+            hammer_vlsi.HammerTool.make_post_insertion_hook("generate_drc_run_file", drc_blackbox_openram_srams),
+        ]
+        return extra_hooks 
+
+    def get_extra_lvs_hooks(self) -> List[HammerToolHookAction]:
+        extra_hooks = [
+            # This is an example of a technology-supplied hook
+            hammer_vlsi.HammerTool.make_post_insertion_hook("generate_lvs_run_file", lvs_blackbox_openram_srams),
+        ]
+        return extra_hooks 
+
+if __name__ == '__main__':
+    ExampleDriver().main()