Getting Started with USB on SAM MCUs Using MPLAB® Harmony v3: Step 1

Step 1.1 - Install the MPLAB® Harmony Configurator (MHC) Plug-in in MPLAB X IDE


Verify that MPLAB® Harmony Configurator (MHC) is installed.

  • Launch MPLAB X IDE.
  • Go to Tools > Embedded.
  • You will see MPLAB Harmony 3 Configurator in the menu.
Figure 1: Check if Harmony 3 Plug-in is installed

If you don't see MPLAB Harmony 3 Configurator in the menu, install MHC.

Step 1.2 - Create MPLAB Harmony v3 Project Using MPLAB X IDE


Select File > New Project from the IDE main menu or click on the New Project button Main_New_Project.png


In the Categories pane of the New Project dialog, select Microchip Embedded. In the Projects pane, select 32-bit MPLAB Harmony 3 Project, then click Next.

Figure 2: Select 32-bit MPLAB Harmony 3 Project

If 32-bit MPLAB Harmony 3 Project is not displayed, install MHC.


In the Framework Path edit box, browse to the folder you downloaded the framework to. If you haven't done this, or want to download it to a different folder, click the Launch Content Manager button, then click Next.

Note: For more information on the Harmony Content Manager, see the Download MPLAB Harmony Framework section of the MPLAB® Harmony v3 Configurator Overview page.

Figure 3: Verify Framework Path
Figure 4: Harmony Content Manager


In the Project Settings window, apply the following settings:

  • Location: Indicates the path to the root folder of the new project. All project files will be placed inside this folder. The project location can be any valid path, for example: C:\Projects\getting_started_drivers_middleware.
  • Folder: Indicates the name of the MPLAB X Project .X folder. Enter "sam_e70_xpld" to create a sam_e70_xpld.X folder.

This must be a valid directory name for your operating system.

  • Name: Enter the project’s logical name as "getting_started_drivers_middleware_same70_xplained". This is the name that will be shown from within the MPLAB X IDE.

Note: The Path box is read-only. It will update as you make changes to the other entries.

  • Click Next to proceed to Configuration Settings.
Figure 5: Project Name and Location

Note: Clicking on the Show Visual Help button will open a help window providing a detailed description of the various fields in the Project Settings window.

Figure 6: MPLAB Harmony New Project Wizard Visual Help


Follow the steps below to set the project’s Configuration Settings.

  • Name: Enter the configuration name as "sam_e70_xpld".
  • Target Device: Select ATSAME70Q21B as the target device.

Note: You can select the Device Family or enter a partial device name to filter the list in Target Device to make it easier to locate the desired device.

  • After selecting the target device, click Finish to launch MHC.
Figure 7: Configuration Settings

Note: The New Project Wizard opens the MPLAB Harmony Configurator automatically for a 32-bit MPLAB Harmony 3 Project.

Step 1.3 - Open MPLAB Harmony Configurator and Configure Project Settings


Once the New Project Wizard finishes, MHC will launch automatically. Complete the other steps before using MHC.

Figure 8: MHC Launch


Set the created project as the main project if you have multiple projects open.

Figure 9: Set as Main Project


Open the Project Properties window and verify that the compiler is set to XC32 (v2.50) and Tool is set to SAM E70 Xplained (EDBG). You need to connect the tool using the DEBUG USB port on the SAME70 Xplained Evaluation Kit to your PC for this option to be visible. Also, verify the package version numbers.

Figure 10: Open Project Properties
Figure 11: Configure Project Properties

Note: This project has been verified to work with the following package versions:
CMSIS v5.4.0, SAME70_DFP v4.4.78

You are free to try the latest packages. However, since we regularly update our tools, you may occasionally discover an issue while using the newer versions. If you suspect that to be the case, we recommend that you double-check and use the same versions that the project was tested with.

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