Overview

To obtain the D7 SDK, please contact us.

D7 SDK provides a comprehensive set of libraries for developing robust applications for the Veethree D7 platform, with a primary focus on hardware I/O operations, system control, and networking capabilities.

The D7 runs on a custom-built Linux distribution, so all the usual Linux APIs and functionality are available.

Remarks: This is a beta release. The APIs are subject to change in future releases.

Getting started

To get started with the D7 Software Development Kit, please begin by reading the User Walkthrough.

The topics covered are:

Detailed documentation

More information about the D7 SDK, its toolchains, the differences between release and development images, hardware interfaces, etc., can be found in the details section of the documentation:

Known issue with pre-production hardware

There are currently two known issues with some pre-production hardware units:

the touch input may seem to not work,
the rotary encoder may produce 2 events for each detent.

If your unit is affected by the touch input issue, please try the steps outlined in Pre-production hardware touch input issues with recent OS images.

For the rotary encoder issue, please see Pre-production rotary encoder produces two events for each detent for a fix.

If you encounter any other issues, please contact support.

D7 SDK components

The D7 SDK's installation folder contains the D7 SDK toolchains for the target and the host machine, creating software update images, a number of utilities for flashing the board, integrating the development kit into Qt Creator and more.

Please refer to the Components page for a complete overview of the components available in the installed SDK.

D7 SDK core libraries

The following are the core libraries of the D7 SDK.

I/O library - Complete hardware interface for digital I/O, PWM signals, analog sensors, and 4-20mA interfaces.
System library - C++ programatic interfaces for controlling the display backlight, button illumination, the buzzer and bootloader environment variables.
Communications - Managing, configuring and using any communication interface available on the platform, such as CAN ports, serial ports and ethernet.
CT2KLib Compatibility - Compatibility library for using Veethree's CT2KLib, which has support for the J1939 and NMEA 2000 protocols. In depth documentation for the CT2KLib library can be found here.
Utilities - Convenience functions and wrappers for common operations, including some system calls and file operations.
Logging library - Configurable logging system for application diagnostics.

Example projects

The Examples section provides full working projects that demonstrate the functionality of the device. They are good starting points for new application development using the Core Libraries as well as integrating them in Qt QML projects.

Important: In order to use Qt libraries you will need to have your own Qt license. Please refer to https://www.qt.io/qt-licensing.

More example projects are available in the D7 SDK installation directory, under the examples folder.

All of the example projects rely on the D7 SDK being installed, so please make sure that is the case. Going through the User Walkthrough will ensure the SDK is installed correctly.

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