Docs: Refactor icsneopy examples

examples/python/can/can_receive_basic.py

@@ -0,0 +1,47 @@
+"""
+Basic CAN frame reception example using icsneopy library.
+
+Demonstrates how to receive CAN frames on DW CAN 01 using callback handlers.
+"""
+
+import icsneopy
+import time
+
+
+def receive_can_frames():
+	"""Receive CAN frames with callback handling."""
+	devices = icsneopy.find_all_devices()
+	if not devices:
+		raise RuntimeError("No devices found")
+
+	device = devices[0]
+	frame_count = 0
+
+	def on_frame(frame):
+		nonlocal frame_count
+		frame_count += 1
+		print(f"[RX {frame_count}] ID: 0x{frame.arbid:03X}, "
+			  f"Data: {[hex(b) for b in frame.data]}")
+
+	frame_filter = icsneopy.MessageFilter(icsneopy.Network.NetID.DWCAN_01)
+	callback = icsneopy.MessageCallback(on_frame, frame_filter)
+
+	try:
+		if not device.open():
+			raise RuntimeError("Failed to open device")
+
+		if not device.go_online():
+			raise RuntimeError("Failed to go online")
+
+		device.add_message_callback(callback)
+		print("Listening for CAN frames for 10 seconds...")
+		time.sleep(10)
+
+		print(f"Total frames received: {frame_count}")
+
+	finally:
+		device.close()
+
+
+if __name__ == "__main__":
+	receive_can_frames()