3.4 Hardware Setup and Programming

Once the application code development is completed it is time to connect the potentiometer to the ADC input pin available on ATtiny817 Xplained Pro and program the device on ATtiny817 Xplained Pro.

1. Connect the potentiometer to the breadboard. Notice how the pins correspond to the letters/numbers on the breadboard.
2. Connect the pins on the potentiometer to the extension header of ATtiny817 Xplained Pro, as shown in Figure 3-15.
   1. Potmeter pin 1: Connect to the GND pin on the kit.
   2. Potmeter pin 2: Connect to the PB1 pin on the kit.
   3. Potmeter pin 3: Connect to the VCC pin on the kit.

   

   Info: A potentiometer, also called a potmeter, is a three-terminal resistor with a sliding or rotating contact that provides an adjustable voltage divider.
3. Enable current measurement of the device by placing the jumper on MEASURE for MCU, as shown in Figure 3-15.
4. Disable current measurement of the I/O pins by placing the jumper on BYPASS for I/O, as shown in Figure 3-15.
5. Connect ATtiny817 Xplained Pro to the computer by using a Micro-USB cable, as shown in Figure 3-15.
   Info: The ATtiny817 screen shows up.
6. Program the device on ATtiny817 Xplained Pro by
   1. Open the Tool pane in project properties by clicking No Tool, as shown in Figure 3-16.

      

   2. Choose EDBG as the Selected debugger/programmer as shown in Figure 3-17.

      

   3. Program the device by clicking Debug->Start Without Debugging or by using the shortcut Ctrl+Alt+F5.
      Info: Start Without Debugging will build the project and program the device as long as there are no build errors.
      Tip: The device can also be programmed by using the Device Programming menu, by clicking Tools → Device Programming.