3.1 CryptoAuth Trust Platform Connections

The 3-Lead Contact mikroBUS Socket Board has dedicated SWI and SWI-PWM connections through the mikroBUS header that enable it to connect to the mikroBUS host header present on the Trust Platform or any of the PIC/AVR/SAM MCU host development boards that have a mikroBUS header. Both SWI and SWI-PWM connections are always connected to the host micro on the Trust Platform board.

Connecting the 3-Lead Contact mikroBUS Socket Board to the CryptoAuth Trust Platform

  1. Configure the EV27Y72A to the desired mode as specified in Modes of Operation.
  2. Set the switches on the CryptoAuth Trust Platform to disable the on-board devices. Note that the SW2_1 switch will have no effect on this mikroBUS board. This setting is highlighted in bold and italic below:
    Switch SettingsWhat is Enabled
    SW2_1SW2_2mikroBUS™ HeaderOn-Board Devices
    N/AONYesYes
    N/AOFFYesNo
  3. Connect the two boards as shown in the following figure.
    Figure 3-1. EV27Y72A Connected to a CryptoAuth Trust Platform Development Board
    Remember: The angled notch on the 3-Lead Contact mikroBUS Socket Board must be aligned with the angled line on the silk screen near the mikroBUS connector.
  4. Connect a USB cable between the CryptoAuth Trust Platform on the host system where the software is developed.
  5. Invoke the software tools for the given application or the use case that is being developed.