Step 4: Generate Code
Navigate to the Projects tab in MPLAB X IDE to view the project tree structure.
MCC will include all the MPLAB Harmony library files and generate the code based on the MCC selections. The generated code would add files and folders to your Harmony project as shown.
Among the generated code, notice the Peripheral Library (PLIB) files generated for Real-Time Clock (RTC), SERCOM 2 (as I²C), SERCOM 3 (as Universal Synchronous Asynchronous Receiver Transmitter (USART)), Direct Memory Access (DMA), External Interrupt Controller (EIC), and PORT peripherals. MCC also generates the template main file (main_d21.c).