NXP Application Code Hub

Using EZH to implement camera interface in lpc55 series mcu

This demo introduces a parallel interface for the camera solution for LPC55(S)xx.

The camera interface can be used as important part of camera usage as below:

• Object detection

• Gesture recognition

• Color recognition

• QR code scanning, and so on.

Supported formats (8-bit): RGB565

• Maximum image transfer rate: 30 fps for QVGA(320 × 240). For small RAM parts, reduce the size of image and frame rate.

• Camera module tested: OV7673

• Other camera modules can be supported as long as they provide the same signal timing.

Boards: LPCXpresso55S69

Categories: Graphics, HMI

Peripherals: I2C, GPIO, SPI, VIDEO

Toolchains: MCUXpresso IDE

Table of Contents

1. Software
2. Hardware
3. Setup
4. Results
5. Support
6. Release Notes

1. Software

• MCUXpresso IDE V11.9.0 or later.
• SDK_2_15_000_LPCXpresso55S69
• MCUXpresso for Visual Studio Code: This example supports MCUXpresso for Visual Studio Code, for more information about how to use Visual Studio Code please refer here.

2. Hardware

• Micro USB cable
• LPCXpresso55S69
• Personal Computer
• OV7670 camera module
• Wareshare 2.8inch TFT Touch Shield

3. Setup

3.1 Step 1

Connect the Wareshare 2.8inch TFT Touch Shield with LPCXpresso55S69, connect OV7670 camera module with LPCXpresso55S69, as shown below:

The signals connection as below:

3.2 Step 2

• Import the project to MCUXpresso IDE.

1. Open MCUXpresso IDE, in the Quick Start Panel, choose Import from Application Code Hub.

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2. Enter the demo name in the search bar.

   

3. Click Copy GitHub link, MCUXpresso IDE will automatically retrieve project attributes, then click Next>.

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4. Select main branch and then click Next>, Select the MCUXpresso project, click Finish button to complete import.

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• Connect the micro USB cable between the PC host and the USB port (J1) on the board.
• Open a serial terminal on PC for the serial device with these settings:
  • 512000 baud rate
  • 8 data bits
  • No parity
  • One stop bit
  • No flow control
• Compile and download to the board.
• Reset and run.

4. Results

The demo result as below:

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5. Support

Project Metadata

Questions regarding the content/correctness of this example can be entered as Issues within this GitHub repository.

Warning: For more general technical questions regarding NXP Microcontrollers and the difference in expected funcionality, enter your questions on the NXP Community Forum

6. Release Notes

Version	Description / Update	Date
1.0	Initial release on Application Code Hub	July 16th 2024