71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2012 Ettus Research LLC
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import xml.etree.ElementTree as et
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import base64
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from optparse import OptionParser
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def main():
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parser = OptionParser()
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parser.add_option("-l", "--lvbitxfile", dest="lvbitxfile",
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help="donor labview fpga bitfile", metavar="LVBITXFILE")
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parser.add_option("-b", "--bitfile", dest="bitfile",
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help="xilinx generated bitfile", metavar="BITFILE")
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parser.add_option("-o", "--output", dest="outfile",
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help="output labview fpga bitfile", metavar="OUTFILE")
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parser.add_option("-s", "--signature", dest="signature",
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help="output labview fpga bitfile signature", metavar="SIGNATURE",
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default="ABCDEFG")
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(options, args) = parser.parse_args()
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tree = et.parse(options.lvbitxfile)
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root = tree.getroot()
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bs = root.find('Bitstream')
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if bs is None: return
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print('Found "%s" tag in "%s"...' % (bs.tag, options.lvbitxfile))
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print('Writing old bitfile content to "%s"...' % (options.bitfile+'.bak'))
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f_old = open(options.bitfile+'.bak', 'w')
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f_old.write(base64.b64decode(bs.text))
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f_old.close()
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print('Reading new bitfile "%s"...' % options.bitfile)
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f = open(options.bitfile, 'r')
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newbs = base64.b64encode(f.read())
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f.close()
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bs.text = newbs
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print('Saving new labview bitfile to "%s"...' % options.outfile)
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tree.write(options.outfile, xml_declaration=True, encoding='utf-8')
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if __name__ == '__main__':
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try:
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main()
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except KeyboardInterrupt:
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pass
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