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41 lines
1.0 KiB
Python
41 lines
1.0 KiB
Python
"""
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Example code for checking connectivity in a layout by using
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`snarled` and `masque`.
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"""
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from pprint import pformat
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import logging
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from masque.file import gdsii, oasis
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import snarled
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import snarled.interfaces.masque
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logging.basicConfig()
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logging.getLogger('snarled').setLevel(logging.INFO)
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connectivity = [
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((1, 0), (1, 2), (2, 0)), #M1 to M2 (via V12)
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((1, 0), (1, 3), (3, 0)), #M1 to M3 (via V13)
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((2, 0), (2, 3), (3, 0)), #M2 to M3 (via V23)
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]
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#cells, props = gdsii.readfile('connectivity.gds')
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cells, props = oasis.readfile('connectivity.oas')
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topcell = cells['top']
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get_layer = snarled.interfaces.masque.prepare_cell(topcell)
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nets_info = snarled.trace_connectivity(get_layer, connectivity)
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print('\nFinal nets:')
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print([kk for kk in sorted(nets_info.nets.keys()) if isinstance(kk.name, str)])
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print('\nShorted net sets:')
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for short in nets_info.get_shorted_nets():
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print('(' + ','.join([repr(nn) for nn in sorted(list(short))]) + ')')
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print('\nOpen nets:')
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print(pformat(dict(nets_info.get_open_nets())))
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