Getting Started with the UJA1161A Evaluation Board

This page will assist you in learning about your UJA1161A Evaluation Board.

Get to Know the Hardware

2.1 Board Description

The UJA1161A-EVB evaluation boards are designed to facilitate the testing and evaluation of UJA1161A product features in a variety of microcontroller IO interface environments. All MCU interface signals can be accessed in two ways: at a header row on the top side and also at header rows on the bottom side that can be plugged directly into many NXP MCU evaluation boards.

The UJA1161A-EVB evaluation boards are designed to be compatible with the S32K1xx evaluation board series from NXP and to support the use of standard software development tools and drivers.

2.2 Board Components

Board dimensions are 45.1 mm × 58.4 mm. Only components needed to support basic UJA1161A functionality are included. All boards contain circuitry for reverse polarity protected battery supply, BAT status LED, and CAN bus termination. The board also provides several header rows (2.54 mm pitch) for connecting MCU interface and application signals.


Configure the hardware

To connect the UJA1161A-EVB to a CAN network, complete the following procedure.

The following conditions must be met before powering up the system with a 12 V supply:

  1. Connect boards in the ECU to a common GND
  2. Connect pin CTS (J3-03, J4-09) to an MCU IO input pin
  3. Connect pin STBN/SLPN (J3-06, J4-09) to an MCU IO output pin
  4. Connect TXD/RXD (J3-01/J3-02, J4-18/J4-20) pins to the MCU CAN controller TXD/RXD pins
  5. Connect CANH and CANL (J1-01/J1-02) to the CAN bus twisted-pair cables
  6. Connect VIO (J3-09, J5-03) on the UJA1161A-EVB to the MCU supply unit; VIO shares the MCU IO supply

Once the above steps have been completed, the ECU/EVB can be powered up using an external battery supply. The UJA1161A-EVB starts up in Standby mode, and then switches between Standby/Sleep modes and Normal mode depending on the level on pin STBN/SLPN.