Getting Started with the TJA1145A-EVB | NXP Semiconductors

Getting Started with the TJA1145A-EVB

Last Modified: 2020-11-06 15:39:05Supports TJA1145A Evaluation Board

Contents of this document

  • 1

    Get Started
  • 2

    Get to Know the Hardware
  • 3

    Configure the Hardware

1. Get Started

The NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. The boards support a range of analog, mixed-signal and power solutions. They incorporate monolithic integrated circuits and system-in-package devices that use proven high-volume technology. NXP products offer longer battery life, a smaller form factor, reduced component counts, lower cost and improved performance in powering state-of-the-art systems.

This page will guide you through the process of setting up and using the TJA1145A-EVB evaluation board.

1.1 Kit Contents/packing List

The TJA1145A-EVB contents include:

  • Assembled and tested evaluation board in an anti-static bag
  • Quick start guide

1.2 Additional Hardware

In addition to the kit contents, the following hardware is necessary or beneficial when working with this kit.

  • Power supply with a 12 V DC source and a current limit capability of at least 1.0 A

2. Get to Know the Hardware

2.1 Board Description

The TJA1145A-EVB evaluation board is designed to facilitate the testing and evaluation of TJA1145A product features in a variety of microcontroller IO interface environments. All MCU interface signals can be accessed in two ways: they are available 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 TJA1145A-EVB board is 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 x 58.4 mm. Only components needed to support basic TJA1145A functionality are included. The board contains CAN communication, power supply and wake-up circuitry and LEDs indicating when pins BAT and VCC are supplied. It provides several header rows (2.56 mm pitch) for connecting MCU interface and application signals.

GS-TJA1145-EVB-IMG1

GS-TJA1145-EVB-IMG1

3. Configure the Hardware

GS-TJA1145-EVB-IMG2

GS-TJA1145-EVB-IMG2

To connect the TJA1145A-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:

  • Connect all boards in the ECU to a common GND
  • Connect SPI pins to the MCU SPI leader:
    • SDI → MOSI
    • SDO → MISO
    • SCK → SCK
    • SCSN → CS
  • Connect TXD/RXD pins to the MCU CAN controller TXD/RXD pins
  • Connect CANH and CANL to the CAN bus twisted-pair cables
  • Connect VCC and VIO to the MCU supply unit; VIO shares the MCU IO supply
  • Connect pin INH to the control/enable pin on the ECU supply unit (optional)

Once the above steps have been completed, the ECU/EVB can be powered up using an external battery supply. The TJA1145A-EVB starts up in Standby mode, awaiting commands from the MCU via the SPI interface.

3.1 Ready to Use

Start embedded application development.