87 lines
3.3 KiB
Python
87 lines
3.3 KiB
Python
# -*- mode:Python -*-
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#
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# This file is part of the Coriolis Software.
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# Copyright (c) SU 2020-2020, All Rights Reserved
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#
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# +-----------------------------------------------------------------+
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# | C O R I O L I S |
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# | Alliance / Hurricane Interface |
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# | |
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# | Author : Jean-Paul Chaput |
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# | E-mail : Jean-Paul.Chaput@lip6.fr |
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# | =============================================================== |
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# | Python : "./crlcore/helpers/technology.py" |
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# +-----------------------------------------------------------------+
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"""
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Some helpers to create or load a technology and it's libraries.
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"""
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from __future__ import print_function
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from Hurricane import DataBase, Library, BasicLayer, Layer
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__all__ = [ 'safeGetLibrary', 'createBL', 'setEnclosures' ]
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def safeGetLibrary ( frameworkName, libName ):
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"""
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Return the library named ``libName`` if it already exists,
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or create it if needed. To avoid potential collision, design
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kits libraries should not be created directly under the DataBase
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root library but be grouped under a common technology library,
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in this case ``CM018``.
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"""
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db = DataBase.getDB()
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tech = db.getTechnology()
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frameLib = db.getRootLibrary().getLibrary( frameworkName )
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if frameLib is None:
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frameLib = Library.create( db.getRootLibrary(), frameworkName )
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lib = frameLib.getLibrary( libName )
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if lib is None:
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lib = Library.create( frameLib, libName )
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return lib
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def createBL ( tech, layerName, material, size=None, spacing=None, gds2Layer=None, gds2DataType=0 ):
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"""
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Create a new BasicLayer. Parameters ``tech``, ``layerName`` and ``material``
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are mandatory.
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:param tech: The technology the basic layer will be part of.
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:param layerName: The name of the layer.
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:param material: The kind of layer, see BasicLayer.Material.
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:param size: The minimal size (i.e. width).
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:param spacing: The minimal distance, edge to edge between two wires.
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:param gds2layer: The GDSII layer number (for the GDSII driver).
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:param gds2DataType: The GDSII DataType (i.e purpose).
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"""
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layer = BasicLayer.create( tech, layerName, BasicLayer.Material(material) )
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if size is not None:
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layer.setMinimalSize( size )
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if spacing is not None:
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layer.setMinimalSpacing( spacing )
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if gds2Layer is not None:
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layer.setGds2Layer ( gds2Layer )
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layer.setGds2Datatype( gds2DataType )
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return layer
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def setEnclosures ( layer, subLayer, enclosures ):
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"""
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Set horizontal & vertical enclosure for a given ``subLayer`` in a
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composite ``layer`` (typically a ViaLayer). If ``enclosures`` is a
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number, both H/V will be set to that same value. If it is a tuple
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(a pair), then the first value is horizontal and the seconf is
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vertical.
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"""
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if isinstance(enclosures,tuple):
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henclosure = enclosures[0]
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venclosure = enclosures[1]
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else:
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henclosure = enclosures
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venclosure = enclosures
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layer.setEnclosure( subLayer, henclosure, Layer.EnclosureH )
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layer.setEnclosure( subLayer, venclosure, Layer.EnclosureV )
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return
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