Arm and Nuvoton provide software developers working with Nuvoton devices based on Arm® Cortex-M processors with a free-to-use professional tool suite for commercial use: the Keil® MDK Nuvoton Edition - Full Cortex-M.

Installation & Activation

1. Download Arm Keil MDK
2. Run the downloaded MDK5xx.exe installer. 
3. Select your installation location (default is C:\Keil_v5). If you have existing MDK installations that you want to keep, select a new folder.
4. In Pack Installer, click Install to download and install the device family packs supplied by Nuvoton.
   
5. Apply for License to get the【Nuvoton License & Usage Declaration】(valid till September 25, 2027).
6. MDK is now ready to use.

Start with an example project

1. Download the corresponding BSP(Board Support Package) according to the required product.
2. Unzip the BSP folder.
3. Open the “Template.uvproj(x)” project in the following path: Mxx_Series_BSP\SampleCode\Template\Keil
4. Build the project, and if you see 0 error in the build output, it means the project was compiled successfully.
   
5. Choose the appropriate Nuvoton’s evaluation board and follow the Quick Start guide to download the code to the chip.