RAK-GAN I2C Scanner Application

Rutronik Application Kit Gallium Nitride "I2C Scanner" Application.

This application is designed to identify all devices connected to the I2C bus.

Requirements

• ModusToolbox® software v3.8 or later (tested with v3.8)
• The latest hardware release: RAK-GAN Rev. 1.

Supported toolchains (make variable 'TOOLCHAIN')

• GNU Arm® Embedded Compiler v14.2.1 (GCC_ARM) - Default value of TOOLCHAIN

Using the code example

Create the project and open it using one of the following:

In Eclipse IDE for ModusToolbox™ software

1. Click the New Application link in the Quick Panel (or, use File > New > ModusToolbox™ Application). This launches the Project Creator tool.

2. Pick a kit supported by the code example from the list shown in the Project Creator - Choose Board Support Package (BSP) dialogue.

   When you select a supported kit, the example is reconfigured automatically to work with the kit. To work with a different supported kit later, use the Library Manager to choose the BSP for the supported kit. You can use the Library Manager to select or update the BSP and firmware libraries used in this application. To access the Library Manager, click the link from the Quick Panel.

   You can also just start the application creation process again and select a different kit.

   If you want to use the application for a kit not listed here, you may need to update the source files. If the kit does not have the required resources, the application may not work.

3. In the Project Creator - Select Application dialogue, choose the example by enabling the checkbox.

4. (Optional) Change the suggested New Application Name.

5. The Application(s) Root Path defaults to the Eclipse workspace which is usually the desired location for the application. If you want to store the application in a different location, you can change the Application(s) Root Path value. Applications that share libraries should be in the same root path.

6. Click Create to complete the application creation process.

For more details, see the Eclipse IDE for ModusToolbox™ software user guide (locally available at {ModusToolbox™ software install directory}/docs_{version}/mt_ide_user_guide.pdf).

Operation

The application checks all 127 addresses every second and reports all devices that respond to the I2C Start/Stop commands via the KitProg3 UART port. The RAB7 board was attached to the RAK-GAN during the test.

Debugging

If you have successfully imported the example, the debug configurations are already prepared to use with the JLink. Open the ModusToolbox™ perspective and find the Quick Panel. Click the desired debug launch configuration, then wait for programming to complete and debugging to start.

Legal Disclaimer

The evaluation board including the software is for testing purposes only and, because it has limited functions and limited resilience, is not suitable for permanent use under real conditions. If the evaluation board is nevertheless used under real conditions, this is done at one’s responsibility; any liability of Rutronik is insofar excluded.