How to use the canmatrix.canmatrix.Signal function in canmatrix
To help you get started, we’ve selected a few canmatrix examples, based on popular ways it is used in public projects.
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ebroecker / canmatrix / test / test_codec.py View on Github 
def test_decode_signal(self):
s1 = Signal('signal', signalSize=8)
self.assertEqual(s1.raw2phys(1), 1)
self.assertEqual(s1.raw2phys(127), s1.max)
self.assertEqual(s1.raw2phys(-128), s1.min)
s2 = Signal('signal', signalSize=10, is_signed=False)
self.assertEqual(s2.raw2phys(10), 10)
self.assertEqual(s2.raw2phys(s2.max), 1023)
self.assertEqual(s2.raw2phys(s2.min), 0)
s3 = Signal('signal', signalSize=8, factor=2)
self.assertEqual(s3.raw2phys(5), 10)
self.assertEqual(s3.raw2phys(127), s3.max)
self.assertEqual(s3.raw2phys(-128), s3.min)
s4 = Signal('signal', signalSize=8, is_signed=False, factor=5)
self.assertEqual(s4.raw2phys(2), 10)
self.assertEqual(s4.raw2phys(255), s4.max)
self.assertEqual(s4.raw2phys(0), s4.min)
s5 = Signal('signal', signalSize=8, offset=2)
self.assertEqual(s5.raw2phys(8), 10)
self.assertEqual(s5.raw2phys(127), s5.max)
self.assertEqual(s5.raw2phys(-128), s5.min)
s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.raw2phys(5), 10)s1 = Signal('signal', signalSize=8)
self.assertEqual(s1.raw2phys(1), 1)
self.assertEqual(s1.raw2phys(127), s1.max)
self.assertEqual(s1.raw2phys(-128), s1.min)
s2 = Signal('signal', signalSize=10, is_signed=False)
self.assertEqual(s2.raw2phys(10), 10)
self.assertEqual(s2.raw2phys(s2.max), 1023)
self.assertEqual(s2.raw2phys(s2.min), 0)
s3 = Signal('signal', signalSize=8, factor=2)
self.assertEqual(s3.raw2phys(5), 10)
self.assertEqual(s3.raw2phys(127), s3.max)
self.assertEqual(s3.raw2phys(-128), s3.min)
s4 = Signal('signal', signalSize=8, is_signed=False, factor=5)
self.assertEqual(s4.raw2phys(2), 10)
self.assertEqual(s4.raw2phys(255), s4.max)
self.assertEqual(s4.raw2phys(0), s4.min)
s5 = Signal('signal', signalSize=8, offset=2)
self.assertEqual(s5.raw2phys(8), 10)
self.assertEqual(s5.raw2phys(127), s5.max)
self.assertEqual(s5.raw2phys(-128), s5.min)
s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.raw2phys(5), 10)
self.assertEqual(s6.raw2phys(255), s6.max)
self.assertEqual(s6.raw2phys(0), s6.min)
s7 = Signal('signal', signalSize=16, is_signed=False, factor=0.001)
self.assertEqual(s7.raw2phys(65535), s7.max)s3 = Signal('signal', signalSize=8, factor=2)
self.assertEqual(s3.raw2phys(5), 10)
self.assertEqual(s3.raw2phys(127), s3.max)
self.assertEqual(s3.raw2phys(-128), s3.min)
s4 = Signal('signal', signalSize=8, is_signed=False, factor=5)
self.assertEqual(s4.raw2phys(2), 10)
self.assertEqual(s4.raw2phys(255), s4.max)
self.assertEqual(s4.raw2phys(0), s4.min)
s5 = Signal('signal', signalSize=8, offset=2)
self.assertEqual(s5.raw2phys(8), 10)
self.assertEqual(s5.raw2phys(127), s5.max)
self.assertEqual(s5.raw2phys(-128), s5.min)
s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.raw2phys(5), 10)
self.assertEqual(s6.raw2phys(255), s6.max)
self.assertEqual(s6.raw2phys(0), s6.min)
s7 = Signal('signal', signalSize=16, is_signed=False, factor=0.001)
self.assertEqual(s7.raw2phys(65535), s7.max)
self.assertEqual(s7.raw2phys(0), s7.min)
self.assertEqual(s7.raw2phys(50123), 50.123)
s8 = Signal('signal', signalSize=8, is_signed=False, factor=0.00005)
self.assertEqual(s8.raw2phys(255), s8.max)
self.assertEqual(s8.raw2phys(0), s8.min)
self.assertEqual(s8.raw2phys(1), 5e-05)
self.assertEqual(s8.raw2phys(2), 0.0001)
self.assertAlmostEqual(s8.raw2phys(3), 0.00015)self.assertEqual(s5.phys2raw(), 0)
self.assertEqual(s5.phys2raw(10), 8)
self.assertEqual(s5.phys2raw(s5.max), 127)
self.assertEqual(s5.phys2raw(s5.min), -128)
s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.phys2raw(), 0)
self.assertEqual(s6.phys2raw(10), 5)
self.assertEqual(s6.phys2raw(s6.max), 255)
self.assertEqual(s6.phys2raw(s6.min), 0)
s7 = Signal('signal', signalSize=8)
s7.addAttribute('GenSigStartValue', '5')
self.assertEqual(s7.phys2raw(), 5)
s8 = Signal('signal', signalSize=8, is_signed=False, offset=5)
s8.addAttribute('GenSigStartValue', '5')
self.assertEqual(s8.phys2raw(), 5)
s9 = Signal('signal', signalSize=16, is_signed=False, factor=0.001)
self.assertEqual(s9.phys2raw(), 0)
self.assertEqual(s9.phys2raw(s9.max), 65534)
self.assertEqual(s9.phys2raw(s9.min), 0)
self.assertEqual(s9.phys2raw(50.123), 50123)
s10 = Signal('signal', signalSize=8, is_signed=False, factor=0.00005)
self.assertEqual(s10.phys2raw(), 0)
self.assertEqual(s10.phys2raw(s10.max), 255)
self.assertEqual(s10.phys2raw(s10.min), 0)
self.assertEqual(s10.phys2raw(0.005), 100)
self.assertEqual(s10.phys2raw(0.003), 60)s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.phys2raw(), 0)
self.assertEqual(s6.phys2raw(10), 5)
self.assertEqual(s6.phys2raw(s6.max), 255)
self.assertEqual(s6.phys2raw(s6.min), 0)
s7 = Signal('signal', signalSize=8)
s7.addAttribute('GenSigStartValue', '5')
self.assertEqual(s7.phys2raw(), 5)
s8 = Signal('signal', signalSize=8, is_signed=False, offset=5)
s8.addAttribute('GenSigStartValue', '5')
self.assertEqual(s8.phys2raw(), 5)
s9 = Signal('signal', signalSize=16, is_signed=False, factor=0.001)
self.assertEqual(s9.phys2raw(), 0)
self.assertEqual(s9.phys2raw(s9.max), 65534)
self.assertEqual(s9.phys2raw(s9.min), 0)
self.assertEqual(s9.phys2raw(50.123), 50123)
s10 = Signal('signal', signalSize=8, is_signed=False, factor=0.00005)
self.assertEqual(s10.phys2raw(), 0)
self.assertEqual(s10.phys2raw(s10.max), 255)
self.assertEqual(s10.phys2raw(s10.min), 0)
self.assertEqual(s10.phys2raw(0.005), 100)
self.assertEqual(s10.phys2raw(0.003), 60)def test_bitstruct_format(self):
""""""
s1 = Signal('signal')
self.assertEqual(s1.bitstruct_format(), 's8')self.assertEqual(s4.phys2raw(s4.max), 255)
self.assertEqual(s4.phys2raw(s4.min), 0)
s5 = Signal('signal', signalSize=8, offset=2)
self.assertEqual(s5.phys2raw(), 0)
self.assertEqual(s5.phys2raw(10), 8)
self.assertEqual(s5.phys2raw(s5.max), 127)
self.assertEqual(s5.phys2raw(s5.min), -128)
s6 = Signal('signal', signalSize=8, is_signed=False, offset=5)
self.assertEqual(s6.phys2raw(), 0)
self.assertEqual(s6.phys2raw(10), 5)
self.assertEqual(s6.phys2raw(s6.max), 255)
self.assertEqual(s6.phys2raw(s6.min), 0)
s7 = Signal('signal', signalSize=8)
s7.addAttribute('GenSigStartValue', '5')
self.assertEqual(s7.phys2raw(), 5)
s8 = Signal('signal', signalSize=8, is_signed=False, offset=5)
s8.addAttribute('GenSigStartValue', '5')
self.assertEqual(s8.phys2raw(), 5)
s9 = Signal('signal', signalSize=16, is_signed=False, factor=0.001)
self.assertEqual(s9.phys2raw(), 0)
self.assertEqual(s9.phys2raw(s9.max), 65534)
self.assertEqual(s9.phys2raw(s9.min), 0)
self.assertEqual(s9.phys2raw(50.123), 50123)
s10 = Signal('signal', signalSize=8, is_signed=False, factor=0.00005)
self.assertEqual(s10.phys2raw(), 0)
self.assertEqual(s10.phys2raw(s10.max), 255)def test_encode_signal(self):
s1 = Signal('signal', signalSize=8)
self.assertEqual(s1.phys2raw(), 0)
self.assertEqual(s1.phys2raw(1), 1)
self.assertEqual(s1.phys2raw(s1.max), 127)
self.assertEqual(s1.phys2raw(s1.min), -128)
s2 = Signal('signal', signalSize=10, is_signed=False)
self.assertEqual(s2.phys2raw(), 0)
self.assertEqual(s2.phys2raw(10), 10)
self.assertEqual(s2.phys2raw(s2.max), 1023)
self.assertEqual(s2.phys2raw(s2.min), 0)
s3 = Signal('signal', signalSize=8, factor=2)
self.assertEqual(s3.phys2raw(), 0)
self.assertEqual(s3.phys2raw(10), 5)
self.assertEqual(s3.phys2raw(s3.max), 127)
self.assertEqual(s3.phys2raw(s3.min), -128)
s4 = Signal('signal', signalSize=8, is_signed=False, factor=5)
self.assertEqual(s4.phys2raw(), 0)
self.assertEqual(s4.phys2raw(10), 2)
self.assertEqual(s4.phys2raw(s4.max), 255)
self.assertEqual(s4.phys2raw(s4.min), 0)
s5 = Signal('signal', signalSize=8, offset=2)
self.assertEqual(s5.phys2raw(), 0)
self.assertEqual(s5.phys2raw(10), 8)
self.assertEqual(s5.phys2raw(s5.max), 127)
self.assertEqual(s5.phys2raw(s5.min), -128)def test_encode_signal(self):
s1 = Signal('signal', signalSize=8)
self.assertEqual(s1.phys2raw(), 0)
self.assertEqual(s1.phys2raw(1), 1)
self.assertEqual(s1.phys2raw(s1.max), 127)
self.assertEqual(s1.phys2raw(s1.min), -128)
s2 = Signal('signal', signalSize=10, is_signed=False)
self.assertEqual(s2.phys2raw(), 0)
self.assertEqual(s2.phys2raw(10), 10)
self.assertEqual(s2.phys2raw(s2.max), 1023)
self.assertEqual(s2.phys2raw(s2.min), 0)
s3 = Signal('signal', signalSize=8, factor=2)
self.assertEqual(s3.phys2raw(), 0)
self.assertEqual(s3.phys2raw(10), 5)
self.assertEqual(s3.phys2raw(s3.max), 127)
self.assertEqual(s3.phys2raw(s3.min), -128)frame = canmatrix.Frame(pdo_map.name,
Id=pdo_map.cob_id,
extended=0)
for var in pdo_map.map:
is_signed = var.od.data_type in objectdictionary.SIGNED_TYPES
is_float = var.od.data_type in objectdictionary.FLOAT_TYPES
min_value = var.od.min
max_value = var.od.max
if min_value is not None:
min_value *= var.od.factor
if max_value is not None:
max_value *= var.od.factor
name = var.name
name = name.replace(" ", "_")
name = name.replace(".", "_")
signal = canmatrix.Signal(name,
startBit=var.offset,
signalSize=var.length,
is_signed=is_signed,
is_float=is_float,
factor=var.od.factor,
min=min_value,
max=max_value,
unit=var.od.unit)
for value, desc in var.od.value_descriptions.items():
signal.addValues(value, desc)
frame.addSignal(signal)
frame.calcDLC()
db.frames.addFrame(frame)
formats.dumpp({"": db}, filename)
return db
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