4.4 Initial Configuration of the CARS Kit PC Evaluation Utility

Perform the following steps for configuring the CARS kit:

  1. In the Car Access System PC Application window, navigate to View > System Configuration.
  2. Click on the refresh icon to update the system’s firmware version and other variables. The system software version loads correctly if the connection is valid (COM port is open).
    Figure 4-4. System Configuration Window
  3. Place the ATAB5702A fob board in close proximity (<10 cm) to the LF antenna module (see the following figure).
    Note: The ATAB5702A fob board placement is similar on the X-10013-002 antenna.
    Figure 4-5. Fob Placement
  4. Click the LF Learn button in the System Configuration window.
  5. The fob UID in the “Learned Fobs” section indicates the successful completion of the learn procedure.
  6. If the learn procedure is unsuccessful, repeat step 4 a couple of times. If it still fails, try moving the ATAB5702A fob board position slightly on the LF antenna module or X-10013-002 antenna and repeat step 4.
Note:
  • The learn procedure is required for the system to function properly, during which, the fob and the base station exchange the UID and secret keys. The fob UID value is stored in the ATSAMC21-XPRO non-volatile memory upon completion of this procedure.
  • Do not click the Clear button in the System Configuration window as doing so erases all stored UID values. Without the stored values, the system car access functions, PEPS authentication and RKE messaging do not operate.