Demo Usage - Silicon Laboratories Si4010 User Manual

Si4010 Keyfob AES DEMO

5. Demo Usage

Connect an appropriate RF Pico board to the LCD Base Board; then, set the SW1 switch on the LCD Base Board
according to the power source (battery or USB).
During startup, the RF parameters are automatically detected by the demo software based on the EBID
information. In this way, only the modulation type (OOK/FSK) should be selected manually.
Figure 5 shows the modulation selection screen.
Figure 5. Modulation Type Selection
To select the modulation type on the Si4010 key fob, refer to "4.2. Selection of Si4010 Key Fob Modulation" on
page 3. After the modulation has been chosen, the AES Demo main screen will display as shown in Figure 6.
Figure 6. Main Screen
Notification screens discussed below can pop up in the Main screen view and are caused by various events. The
notification screens disappear after a time-out of several seconds; they can also be eliminated by pressing any of
the push buttons.
After startup, no associated clients are registered. In order to associate a client, press the push-button under the
Asc menu option. During association, there is a limited amount of time available to associate a client. The
remaining time is written to the screen as shown in Figure 7.
Figure 7. Association Timeout
The radio packets sent by the key fob are not like the association packets sent during normal use. To get an
association packet out from the key fob, press Button 1 and Button 3 at the same time. This causes the key fob to
generate an association plain text packet and then encrypt it with a different (association) AES key. Button 1 (right)
and Button 3 (left) on the key fob are identified by arrows in Figure 8.
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