Close all existing opened projects before you start creating a new project.
In the Categories pane of the New Project dialog window, select Microchip Embedded. In the Projects pane, select 32-bit MPLAB Harmony 3 Project, then click Next.
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If 32-Bit MPLAB Harmony 3 Project is not displayed, you will need to 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 Framework Downloader button, then click Next.
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For more information on the framework downloader, see the "Download MPLAB Harmony Framework" section of the "MPLAB Harmony Configurator Overview" page.
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:\microchip\harmony\v3\training\dev.
Folder: indicates the name of the MPLAB X .X folder. Enter "sam_d21_xpro" to create a sam_d21_xpro.X folder.
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This must be a valid directory name for your operating system.
Name: enter the project’s logical name as "getting_started_sam_d21_xpro". This is the name that will be shown within the MPLAB X IDE.
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The Path box is read-only. It will update as you make changes to the other entries.
Click Next to proceed to configuration settings.
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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.
Follow the steps below to set the project’s configuration settings:
Name: enter the configuration name as "sam_d21_xpro".
Target Device: select ATSAMD21J18A as the target device.
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You can select the Device Family or enter a partial device name to filter the list in Target Device in order to make it easier to locate the desired device.
After selecting the target device, click Finish to launch MHC.
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The New Project wizard opens a Configuration Database Setup window to allow you to review the packages that will be used by the current project.
While the MHC tool launches, it will ask for the packages to be loaded. In the Load checkboxes list, select the csp package (by default this option is selected) and uncheck all the other packages (if any).
Click Launch to launch the MHC tool with the selected packages.
The MHC plugin’s main window for the project will be displayed in Standalone mode, as shown in the following image.
Before proceeding, set up the compiler toolchain. Click on the Projects tab on the top left pane in MPLAB X IDE. Right click on the project name getting_started_sam_d21_xpro and go to Properties.
Make sure that XC32 (v2.20) is selected as the Compiler Toolchain for XC32. Click on Apply and then click on OK.
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Tool Tip: If you closed MHC accidentally and would like to open it again, go to Tools > Embedded > MPLAB Harmony 3 Configurator in MPLAB X IDE.
Launch Clock Easy View by going to the Tools menu of the MHC window and then select Clock Configuration.
A new window, Clock Easy View is opened inside MHC.
In the Clock Easy View, verify that the Main Clock is set to 48 MHz.
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Tool Tip:
The Clock Easy View window can be minimized by clicking minimize button, as shown in the accompanying image.
After minimizing the Clock Easy View window, you can see a small Clock Easy View tab at the bottom-left in MHC, as shown in the accompanying image.
The Clock Easy View window can be maximized by clicking maximize button or by double-clicking on the Clock Easy View window, as shown in the accompanying image.
These tips apply to all other plug-in managers like Pin Configuration, DMA Configuration, Event System Configuration, and NVIC Configuration.
If you need to work with Microchip Support staff directly, you can submit a technical support case. Keep in mind that many questions can be answered through our self-help resources, so this may not be your speediest option.