def test_crcmod_32(self):
data = 0x414243
dataSize = 24
inputPoly = 0x104c11db7
regInit = 0x0
xorOut = 0x00
crcSize = 32
# print "XXX {:X} {:X}".format( data, data2)
# barray1 = bytearray.fromhex('{:x}'.format(data))
# barray2 = bytearray.fromhex('{:x}'.format(data2))
# crc32_func = crcmod.mkCrcFun(0x104c11db7, initCrc=regInit, xorOut=xorOut)
crc32_func = crcmod.mkCrcFun(0x104c11db7,
rev=False,
initCrc=regInit,
xorOut=xorOut)
crcLib = crc32_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: {:X} {:X}".format( crcLib, crc )
self.assertEqual(crc, crcLib)
def test_crcmod_8_xorOut(self):
data = 0xF0
dataSize = 8
inputPoly = 0x100
crcSize = 8
regInit = 0x0F
xorOut = 0xF0
crc_func = crcmod.mkCrcFun(inputPoly,
initCrc=regInit,
rev=False,
xorOut=xorOut)
crcLib = crc_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setXorOutValue(xorOut)
crcProc.setInitCRC(regInit, crcSize)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: 0x{0:X}[0b{0:b}] 0x{1:X}[0b{1:b}]".format( crc, crcLib )
self.assertEqual(crc, crcLib)
def test_crcmod_8_data(self):
data = 0xF0FF
dataSize = 16
inputPoly = 0x181 ## leave symmetric
crcSize = 8
regInit = 0x0
xorOut = 0x0
crc_func = crcmod.mkCrcFun(inputPoly,
initCrc=regInit,
rev=False,
xorOut=xorOut)
crcLib = crc_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: {:b} {:b}".format( crcLib, crc )
self.assertEqual(crc, crcLib)