Improve ECU address finder script (#32734)

* put pandad in good state

* obd option

* fix

* it's rx
old-commit-hash: 4539c97349

selfdrive/car/ecu_addrs.py

@@ -71,25 +71,35 @@ def get_ecu_addrs(logcan: messaging.SubSocket, sendcan: messaging.PubSocket, que
 
 if __name__ == "__main__":
   import argparse
+  from openpilot.common.params import Params
+  from openpilot.selfdrive.car.fw_versions import set_obd_multiplexing
 
   parser = argparse.ArgumentParser(description='Get addresses of all ECUs')
   parser.add_argument('--debug', action='store_true')
   parser.add_argument('--bus', type=int, default=1)
+  parser.add_argument('--no-obd', action='store_true')
   parser.add_argument('--timeout', type=float, default=1.0)
   args = parser.parse_args()
 
   logcan = messaging.sub_sock('can')
   sendcan = messaging.pub_sock('sendcan')
 
-  time.sleep(1.0)
+  # Set up params for pandad
+  params = Params()
+  params.remove("FirmwareQueryDone")
+  params.put_bool("IsOnroad", False)
+  time.sleep(0.2)  # thread is 10 Hz
+  params.put_bool("IsOnroad", True)
+
+  set_obd_multiplexing(params, not args.no_obd)
 
   print("Getting ECU addresses ...")
   ecu_addrs = get_all_ecu_addrs(logcan, sendcan, args.bus, args.timeout, debug=args.debug)
 
   print()
-  print("Found ECUs on addresses:")
+  print("Found ECUs on rx addresses:")
   for addr, subaddr, _ in ecu_addrs:
-    msg = f"  0x{hex(addr)}"
+    msg = f"  {hex(addr)}"
     if subaddr is not None:
       msg += f" (sub-address: {hex(subaddr)})"
     print(msg)