def send_obd(data):
conn2 = IsoTPSocketConnection('can0',
rxid=0x7E8,
txid=0x700,
params=params)
conn2.tpsock.set_opts(txpad=0x55, tx_stmin=2500000)
conn2.open()
conn2.send(data)
conn2.wait_frame()
conn2.wait_frame()
conn2.close()
def send_raw(data):
global params
conn2 = IsoTPSocketConnection('can0',
rxid=0x7E8,
txid=0x7E0,
params=params)
conn2.tpsock.set_opts(txpad=0x55, tx_stmin=2500000)
conn2.open()
conn2.send(data)
results = conn2.wait_frame()
conn2.close()
if results:
print(str(results))
return results
else:
return data + b'0x00'
if __name__ == '__main__':
isotp_socket = isotp.socket()
isotp_socket.set_opts(txpad=CarConfig.TXPADSIZE, rxpad=CarConfig.RXPADSIZE)
conn = IsoTPSocketConnection('can0', rxid=CarConfig.RXID, txid=CarConfig.TXID, tpsock=isotp_socket)
with Client(conn, request_timeout=2, config=CarConfig.car_client_config) as client:
try:
client.change_session(DiagnosticSessionControl.Session.defaultSession)
client.unlock_security_access(CarConfig.SECURITY_LEVEL)
# suppress error
for i in range(0,3):
conn.send(b'\x0a\x27')
time.sleep(0.5)
client.change_session(DiagnosticSessionControl.Session.programmingSession)
except NegativeResponseException as e:
print('Server refused our request for service %s with code "%s" (0x%02x)' % (e.response.service.get_name(), e.response.code_name, e.response.code))
except UnexpectedResponseException as e:
print('Server sent an invalid payload : %s' % e.response.original_payload)
except TimeoutException as e:
pass
isotp_socket2 = isotp.socket()
isotp_socket2.set_opts(txpad=CarConfig.TXPADSIZE, rxpad=CarConfig.RXPADSIZE)
conn2 = IsoTPSocketConnection('can0', rxid=0x002, txid=0x001, tpsock=isotp_socket2)