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import os

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from subprocess import Popen,PIPE

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from .. import toolchain_makefile

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import hashlib

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class LPC_target(toolchain_makefile):

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    extension = ".ld"

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    DebugEnabled = False

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    def GetBinaryCode(self):

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        """Returns ready to send signed + sized intel formated hex program"""

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        try:

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            size = int(Popen(

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                 ['arm-elf-size','-B',os.path.join(self.buildpath,"ArmPLC_rom.elf")],

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                 stdout=PIPE).communicate()[0].splitlines()[1].split()[0])

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            res = "&" + hashlib.md5(open(os.path.join(self.buildpath, "ArmPLC_rom.bin"), "rb").read(size)).hexdigest() + '\n' +\

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                   "$" + str(size) + '\n' +\

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                   open(os.path.join(self.buildpath, "ArmPLC_rom.hex"), "r").read()

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            return res

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        except Exception, e:

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            return None

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