Getting Started with the OMPCA9957LEDEV | NXP Semiconductors

Getting Started with the OMPCA9957LEDEV

Last Modified: 2021-03-17 10:54:00Supports OMPCA9957LEDEV | PCA9957 Development Tool

Contents of this document

  • 1

    Get Started
  • 2

    Get to Know the Hardware
  • 3

    Configure 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 OMPCA9957LEDEV evaluation board.

1.1 Kit Contents/Packing List

The OMPCA9957LEDEV contents include:

  • Assembled and tested OMPCA9957LEDEV (24-channel SPI serial bus 32 mA/5.5 V constant current LED driver) board in an antistatic bag
  • One USB A to micro B cable
  • 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.

  • Microcontroller board for SPI communication
  • Fluke 88-5 Multimeter
  • TEK MSO4054 500 MHz 2.5 GS/s 4-channel oscilloscope

1.3 Windows PC Workstation

This evaluation board requires a Windows PC workstation. Meeting these minimum specifications should produce great results when working with this kit.

  • USB-enabled computer with Windows 7 or Windows 10

2. Get to Know the Hardware

2.1 Board Features

  • A complete evaluation platform for the PCA9957 24-channel SPI-bus 32 mA/5.5 V constant current LED driver
  • Easy-to-use GUI-based software demonstrates the capabilities of the PCA9957
  • On-board infrared, blue and RGB LEDs for variable experiments
  • Convenient test points for easy scope measurements and signal access
  • USB interface to the host PC
  • Power supply from USB port

2.2 Board Description

The OMPCA9957LEDEV evaluation board features LEDs for color mixing, blinking and dimming demonstrations. A graphical interface allows the user to easily explore the different functions of the driver. The board can be connected in series with other SPI-bus demo boards.

2.3 Board Components

Overview of the OMPCA9957LEDEV evaluation board.

GS-OMPCA9957LEDEV-IMG1

GS-OMPCA9957LEDEV-IMG1

3. Configure Hardware

3.1 Configure Hardware

To configure the hardware, complete the following procedure:

  1. The OMPCA9957LEDEV evaluation board is connected to the OM13089 MCU board using two connectors (J1 and J2 on the OMPCA9957LEDEV board and J1 and J8 on the OM13089 board)

    GS-OMPCA9957LEDEV-IMG2

    GS-OMPCA9957LEDEV-IMG2

    GS-OMPCA9957LEDEV-IMG3

    GS-OMPCA9957LEDEV-IMG3
  2. The OM13089 MCU board communicates with PCA9957 demo GUI through PC USB port and uses SPI bus to communicate to PCA9957
  3. GS-OMPCA9957LEDEV-IMG4

    GS-OMPCA9957LEDEV-IMG4