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from pyb import CAN
CAN.initfilterbanks(14)
can = CAN(1)
print(can)
can.init(CAN.LOOPBACK)
print(can)
print(can.any(0))
# Catch all filter
can.setfilter(0, CAN.MASK16, 0, (0, 0, 0, 0))
can.send('abcd', 123)
print(can.any(0))
print(can.recv(0))
can.send('abcd', -1)
print(can.recv(0))
can.send('abcd', 0x7FF + 1)
print(can.recv(0))
# Test too long message
try:
can.send('abcdefghi', 0x7FF)
except ValueError:
print('passed')
else:
print('failed')
del can
# Testing extended IDs
can = CAN(1, CAN.LOOPBACK, extframe = True)
# Catch all filter
can.setfilter(0, CAN.MASK32, 0, (0, 0))
print(can)
try:
can.send('abcde', 0x7FF + 1)
except ValueError:
print('failed')
else:
r = can.recv(0)
if r[0] == 0x7FF+1 and r[3] == b'abcde':
print('passed')
else:
print('failed, wrong data received')
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