def createSetValuesPDU(header, parameter=[], references=[]):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if parameter:
parameterAPDU = createSetParametersAPDU(parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createSetReferencesAPDU(references)
length += len(referencesAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if parameter:
pdu.extend(parameterAPDU)
if references:
pdu.extend(referencesAPDU)
crc = wordToBytes(calcuteCrc(pdu))
pdu.extend(crc)
#arr = array.array('B', pdu)
# TODO: arr.tostring() for I/O!
return array('B', pdu)
def createGetValuesPDU(klass,
header,
protocolData=[],
measurements=[],
parameter=[],
references=[],
strings=[]):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if protocolData:
protocolAPDU = createGetProtocolDataAPDU(protocolData)
length += len(protocolAPDU)
if measurements:
measurementAPDU = createGetMeasuredDataAPDU(klass, measurements)
length += len(measurementAPDU)
if parameter:
parameterAPDU = createGetParametersAPDU(parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createGetReferencesAPDU(references)
length += len(referencesAPDU)
if strings:
stringsAPDU = createGetStringsAPDU(strings)
length += len(stringsAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if protocolData:
pdu.extend(protocolAPDU)
if parameter:
pdu.extend(parameterAPDU)
if measurements:
pdu.extend(measurementAPDU)
if references:
pdu.extend(referencesAPDU)
if strings:
pdu.extend(stringsAPDU)
crc = wordToBytes(calcuteCrc(pdu))
pdu.extend(crc)
return array('B', pdu)
def createGetInfoPDU(klass,
header,
measurements=[],
parameter=[],
references=[]):
## To be defensive, at most 15 datapoints should be requested at once (min.frame length = 70 bytes).
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
if measurements:
if klass == defs.APDUClass.MEASURED_DATA:
measurementsAPDU = createGetInfoAPDU(defs.APDUClass.MEASURED_DATA,
measurements)
if klass == defs.APDUClass.SIXTEENBIT_MEASURED_DATA:
measurementsAPDU = createGetInfoAPDU(
defs.APDUClass.SIXTEENBIT_MEASURED_DATA, measurements)
length += len(measurementsAPDU)
if parameter:
parameterAPDU = createGetInfoAPDU(
defs.APDUClass.CONFIGURATION_PARAMETERS, parameter)
length += len(parameterAPDU)
if references:
referencesAPDU = createGetInfoAPDU(defs.APDUClass.REFERENCE_VALUES,
references)
length += len(referencesAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
if measurements:
pdu.extend(measurementsAPDU)
if parameter:
pdu.extend(parameterAPDU)
if references:
pdu.extend(referencesAPDU)
crc = wordToBytes(calcuteCrc(pdu))
pdu.extend(crc)
return array('B', pdu)
def createSetCommandsPDU(header, commands):
if not isinstance(header, Header):
raise TypeError('Parameter "header" must be of type "Header".')
length = 2
pdu = []
commandsAPDU = createSetCommandsAPDU(commands)
length += len(commandsAPDU)
pdu.extend(
[header.startDelimiter, length, header.destAddr, header.sourceAddr])
pdu.extend(commandsAPDU)
crc = wordToBytes(calcuteCrc(pdu))
pdu.extend(crc)
return array('B', pdu)
def test06(self):
self.assertEqual(calcuteCrc(TEST_VECTORS[5]), RESULTS[5])
