AXIOMTEK DSA-132 Series Informations techniques télécharger pdf (Page 172)

Manual:API

169

r.append(w)

def writeWord(self, w):

print "<<< " + w

self.writeLen(len(w))

self.writeStr(w)

def readWord(self):

ret = self.readStr(self.readLen())

print ">>> " + ret

return ret

def writeLen(self, l):

if l < 0x80:

self.writeStr(chr(l))

elif l < 0x4000:

l |= 0x8000

self.writeStr(chr((l >> 8) & 0xFF))

self.writeStr(chr(l & 0xFF))

elif l < 0x200000:

l |= 0xC00000

self.writeStr(chr((l >> 16) & 0xFF))

self.writeStr(chr((l >> 8) & 0xFF))

self.writeStr(chr(l & 0xFF))

elif l < 0x10000000:

l |= 0xE0000000

self.writeStr(chr((l >> 24) & 0xFF))

self.writeStr(chr((l >> 16) & 0xFF))

self.writeStr(chr((l >> 8) & 0xFF))

self.writeStr(chr(l & 0xFF))

else:

self.writeStr(chr(0xF0))

self.writeStr(chr((l >> 24) & 0xFF))

self.writeStr(chr((l >> 16) & 0xFF))

self.writeStr(chr((l >> 8) & 0xFF))

self.writeStr(chr(l & 0xFF))

def readLen(self):

c = ord(self.readStr(1))

if (c & 0x80) == 0x00:

pass

elif (c & 0xC0) == 0x80:

c &= ~0xC0

c <<= 8

c += ord(self.readStr(1))

elif (c & 0xE0) == 0xC0:

c &= ~0xE0

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AXIOMTEK DSA-132 Series Informations techniques Page 172

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