4.5 Programming the Device

First, download a copy of the source code. Unzip the files to a location with a short file path, such as C:/ or Documents.

CAUTION: Some generated code has a long file path, which approaches the file limits allowed. The project may not build correctly if the complete file path exceeds the authorized path length.

Plug in the Curiosity Nano. Open MPLAB X IDE, then go to File and click Open Project… and select the folder ending in .X (fusa-ammonia.X). Select the configuration (see Changing Configurations for more information), and then press the programming button in the top toolbar in the figure below.

Tip: Pressing the program button will rebuild the program automatically.

When reminded, select the Curiosity Nano in the tools window (see the figure below). The project will build and program the Curiosity Nano once the tool is selected.

Figure 4-4. Selecting a Tool

Tip: Only develop_no_cksm can be built for debug. Building any other configuration for debug will result in an error at the end of compilation.

Then, press the Data Visualizer (DV) icon in the top toolbar. On the left side of the screen, select the COM port associated with the Curiosity Nano and press the gear icon. Change the baud rate to 115200 and then close the menu. Press the play button, then send to terminal. Output from the Nano will now be redirected to the serial terminal, as shown in the figure below.

Tip: Button 2 will reset the microcontroller, causing it to re-run and print the start-up results, as shown below.