Figure 5-18. LF Antennas and Polling
4.
Select the desired “LF Antenna Current” from the drop-down list.
5.
Enter the polling interval value in milliseconds (for example,
1000
, meaning the LF wake-up signal is
transmitted every one second).
Note:
500 ms is the minimum allowable interval.
6.
Check the “Polling” check box to enable polling and ensure that the LEDs on the fob blink each time the new
wake-up signal is received.
7.
Type in a new Vehicle ID (for example,
887766
), click on any other field within the window and ensure that the
LEDs on the fob no longer blink. This demonstrates that the fob only wakes up for the vehicle it was paired to.
8.
Type in the original Vehicle ID –
667788
.
9.
Uncheck the “Polling” check box to disable polling.
5.3.7
PEPS Communication
The PEPS communication functionality can be tested using the CARS PC application running on the host PC as
follows:
1.
If not done already, follow the procedure detailed in
4. CARS Kit PC Evaluation Utility
.
2.
If not done already, follow the calibration procedure detailed in
5.3.5. Fob Calibration Process
3.
Position the fob at the desired distance from the LF antenna module or X-10013-002 antenna that is used for
the fob’s in/out threshold.
4.
Navigate to
View > PEPS Messaging
to open the PEPS Message Status window (see
5.
Select the
Unilateral Authentication
radio option, click the
Unlock
button and, after the authentication
sequence completes, note the value of the number in the “Distance Scale (RSSI)” field of the PEPS Message
Status window. Enter this value in the “In/Out Threshold” field of the System Configuration window (see
).
ATAN0219
System Operation
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2020-2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003051B-page 31