laygo2.interface.bag module#
This module implements interface with BAG in skill language
- laygo2.interface.bag.export(db, filename, cellname=None, scale=0.001, reset_library=False, tech_library=None)[source]#
Export a laygo2.object.database.Library object to BAG2.
- Parameters:
db (laygo2.object.database.Library) – The library database to be exported.
filename (str, optional) – The path of the intermediate skill script file.
cellname (str or List[str]) – The name(s) of cell(s) to be exported.
scale (float) – The scaling factor between laygo2’s integer coordinats actual physical coordinates.
reset_library (bool, optional) – If True, the library to export the cells is reset.
tech_library (str, optional) – The name of technology library to be attached to the resetted library.
- Returns:
str
- Return type:
The generated skill script.
Example
>>> import laygo2 >>> from laygo2.object.database import Design >>> from laygo2.object.physical import Rect, Pin, Instance, Text >>> # Create a design. >>> dsn = Design(name="mycell", libname="genlib") >>> # Create layout objects. >>> r0 = Rect(xy=[[0, 0], [100, 100]], layer=["M1", "drawing"]) >>> p0 = Pin(xy=[[0, 0], [50, 50]], layer=["M1", "pin"], name="P") >>> i0 = Instance(libname="tlib", cellname="t0", name="I0", xy=[0, 0]) >>> t0 = Text(xy=[[50, 50], [100, 100]], layer=["text", "drawing"], text="T") >>> # Add the layout objects to the design object. >>> dsn.append(r0) >>> dsn.append(p0) >>> dsn.append(i0) >>> dsn.append(t0) >>> # >>> # Export to BAG. >>> lib = laygo2.object.database.Library(name="mylib") >>> lib.append(dsn) >>> scr = laygo2.interface.bag.export(lib, filename="myscript.il") >>> print(scr) ; (definitions of laygo2 skill functions) ; exporting mylib__mycell cv = _laygo2_open_layout("mylib" "mycell" "layout") _laygo2_generate_rect(cv, list( "M1" "drawing" ), list( list( 0.0000 0.0000 ) list( 0.1000 0.1000 ) ), "None") _laygo2_generate_pin(cv, "P", list( "M1" "pin" ), list( list( 0.0000 0.0000 ) list( 0.0500 0.0500 ) ) ) _laygo2_generate_instance(cv, "I0", "tlib", "t0", "layout", list( 0.0000 0.0000 ), "R0", 1, 1, 0, 0, nil, nil) _laygo2_save_and_close_layout(cv)