132 lines
3.9 KiB
Python
132 lines
3.9 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright 2020 SkyWater PDK Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# SPDX-License-Identifier: Apache-2.0
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"""Creates plots for FET characteristics for FET cells in Skywater libraries.
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This script scans for FET cells in the Skywater PDK libraries and generates
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the FET cells using methods from the fet submodule.
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"""
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import argparse
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from pathlib import Path
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import sys
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import contextlib
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import traceback
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import errno
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from fet import generate_fet_plots
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def main(argv):
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parser = argparse.ArgumentParser(
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prog=argv[0],
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description=__doc__,
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formatter_class=argparse.RawDescriptionHelpFormatter
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)
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parser.add_argument(
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'libraries_dir',
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help='Path to the libraries directory of skywater-pdk',
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type=Path
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)
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parser.add_argument(
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'corner_file',
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help='Path to the corner SPICE file',
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type=Path
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)
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parser.add_argument(
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'output_dir',
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help='Path to the output directory',
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type=Path
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)
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parser.add_argument(
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'--libname',
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help='Library name to generate the Symbolator diagrams for',
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type=str
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)
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parser.add_argument(
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'--version',
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help='Version for which the Symbolator diagrams should be generated',
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type=str
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)
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parser.add_argument(
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'--create-dirs',
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help='Create directories for output when not present',
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action='store_true'
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)
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parser.add_argument(
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'--failed-inputs',
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help=('Path to an output file which will store all input filenames ' +
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'for which ngspice failed to simulate'
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),
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type=Path
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)
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args = parser.parse_args(argv[1:])
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fetbins = list(args.libraries_dir.rglob('*fet*bins.csv'))
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nc = contextlib.nullcontext()
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with open(args.failed_inputs, 'w') if args.failed_inputs else nc as err:
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for fetbin in fetbins:
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outdir = (args.output_dir /
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fetbin.parent.resolve()
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.relative_to(args.libraries_dir.resolve()))
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library = outdir.relative_to(args.output_dir).parts[0]
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ver = outdir.relative_to(args.output_dir).parts[1]
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if args.libname and args.libname != library:
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continue
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if args.version and args.version != ver:
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continue
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print(f'===> {str(fetbin)}')
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try:
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if not outdir.exists():
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if args.create_dirs:
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outdir.mkdir(parents=True)
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else:
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print(f'The output directory {str(outdir)} is missing')
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print('Run the script with --create-dirs')
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return errno.ENOENT
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prefix = fetbin.name.replace('.bins.csv', '')
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generate_fet_plots(
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args.corner_file,
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fetbin,
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outdir,
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f'{prefix}_',
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ext='sim.svg'
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)
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except (Exception, IndexError):
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print(
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f'Failed to generate FET plot for {str(fetbin)}',
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file=sys.stderr
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)
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traceback.print_exc()
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if err:
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err.write(f'{fetbin}\n')
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print('Finished generating FET plots')
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return 0
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if __name__ == '__main__':
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sys.exit(main(sys.argv))
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