pin() method

Design.pin(name, grid, mn, direction=None, netname=None, params=None)

Create a Pin object over the abstract coordinates specified by mn, on the specified routing grid.

Parameters:

• name (str) – Pin name.

• mn (numpy.ndarray) – Abstract coordinates for generating Pin.

• direction (str, optional.) – Direction.

• netname (str, optional.) – Net name of Pin.

• params (dict, optional) – Pin attributes.

Returns:

laygo2.physical.Pin

Return type:

The generated pin object.

Example

>>> import laygo2
>>> from laygo2.object.grid import CircularMapping as CM
>>> from laygo2.object.grid import CircularMappingArray as CMA
>>> from laygo2.object.grid import OneDimGrid, RoutingGrid
>>> from laygo2.object.template import NativeInstanceTemplate
>>> from laygo2.object.database import Design
>>> from laygo2.object.physical import Instance
>>> # Routing grid construction (not needed if laygo2_tech is set up).
>>> gv = OneDimGrid(name="gv", scope=[0, 50], elements=[0])
>>> gh = OneDimGrid(name="gv", scope=[0, 100], elements=[0, 40, 60])
>>> wv = CM([10])           # vertical (xgrid) width
>>> wh = CM([20, 10, 10])   # horizontal (ygrid) width
>>> ev = CM([10])           # vertical (xgrid) extension
>>> eh = CM([10, 10, 10])   # horizontal (ygrid) extension
>>> e0v = CM([15])          # vert. extension (for zero-length wires)
>>> e0h = CM([15, 15, 15])  # hori. extension (for zero-length wires)
>>> lv = CM([['M1', 'drawing']], dtype=object)  # layer information
>>> lh = CM([['M2', 'drawing']]*3, dtype=object)
>>> plv = CM([['M1', 'pin']], dtype=object) # pin layers
>>> plh = CM([['M2', 'pin']]*3, dtype=object)
>>> xcolor = CM([None], dtype=object)  # Not multipatterned
>>> ycolor = CM([None]*3, dtype=object)
>>> primary_grid = 'horizontal'
>>> tvia = NativeInstanceTemplate(libname='tlib', cellname='via0')  # via
>>> viamap = CMA(elements=[[tvia, tvia, tvia]], dtype=object)
>>> g = laygo2.object.grid.RoutingGrid(name='mygrid', vgrid=gv, hgrid=gh,
                                       vwidth=wv, hwidth=wh,
                                       vextension=ev, hextension=eh,
                                       vlayer=lv, hlayer=lh,
                                       pin_vlayer=plv, pin_hlayer=plh,
                                       viamap=viamap, primary_grid=primary_grid,
                                       xcolor=xcolor, ycolor=ycolor,
                                       vextension0=e0v, hextension0=e0h)
>>> # Create a design
>>> dsn = Design(name="mycell", libname="genlib")
>>> ###############
>>> # Place a pin #
>>> ###############
>>> mn = [[0, 0], [10, 10]]
>>> pin = dsn.pin(name="pin", grid=g, mn=mn)
>>> print(pin)
<laygo2.object.physical.Pin object at 0x0000028DABE3AB90>
    name: pin,
    class: Pin,
    xy: [[0, -10], [500, 350]],
    params: None, , layer: ['M2' 'pin'], netname: pin, shape: None,
    master: None
>>> print(dsn)
<laygo2.object.database.Design object at 0x0000028DABE3A110> name: mycell, params: None
    elements: {'pin': <laygo2.object.physical.Pin object at
    0x0000028DABE3AB90>}
    libname:genlib
    rects:{}
    paths:{}
    pins:{'pin': <laygo2.object.physical.Pin object at 0x0000028DABE3AB90>}
    texts:{}
    instances:{}
    virtual instances:{}