def connect(self):
""" Connects the user interface to the CAN-D hardware device.
Returns:
boolean -- True if successfully connected; False, otherwise.
"""
if self.candbus is not None:
self.candbus.start_usb_polling()
self.connected = True
else:
try:
if self.isdemo:
self.candbus = CannedBus(log_path=self.trace_location)
elif self.isloopback:
self.candbus = LoopbackBus()
else:
self.candbus = CanDBus()
self.connected = True
except NoBackendError:
print("No hardware")
return self.connected
def send_start_log():
bus = CanDBus()
bus.start_log()
bus.stop_usb_polling()
from candy_connector.CanDBus import CanDBus
import candy_connector.proto.can_d_pb2 as pb
from candy_connector.parsers import parse_line
import logging
from can import Message
bus = CanDBus()
with open("./data/can_trace_256.log.test", "r") as log_file:
print("Starting Loopback test...")
print("Sending Messages")
for log_line in log_file.readlines():
frame_id, payload = parse_line(log_line)
tx_msg = Message()
tx_msg.arbitration_id = frame_id
tx_msg.dlc = len(payload)
tx_msg.data = bytes(payload)
print(f"Send {tx_msg}")
bus.send(tx_msg)
rx_msg = bus.recv()
assert (
rx_msg.arbitration_id == tx_msg.arbitration_id
), f"Id did not match. Sent: {tx_msg.arbitration_id}, got:{rx_msg.arbitration_id}"
assert (
rx_msg.data == tx_msg.data
), f"Data did not match. Sent: {tx_msg.data}, got:{rx_msg.data}"
print("All messages sent.")
print("Done Loopback test")
bus.stop_usb_polling()
def send_mark_log():
bus = CanDBus()
bus.mark_log()
bus.stop_usb_polling()