4.2 Atmel Studio with STK600

Prerequisites

  • Atmel Studio 7.0 1645 or above installed
  • The STK600 board connected to Atmel Studio 7.0 via the on-board USB connector.

Workflow

  1. Launch Atmel Studio 7.0.
  2. Start creating a new project by clicking New → Project... or by using the shortcut Ctrl+Shift+N, as shown in the figure below.
    Figure 4-7. Create New Project in Atmel Studio
  3. Select the GCC C Executable Project template from the new project wizard shown in the following figure, type in the name of the solution and project (e.g. GETTING_STARTED and LED_TOGGLE), and click OK.
    Figure 4-8. New Project Wizard

  4. Select ATmega4809 from the device selection wizard as shown in the figure below, and click OK.
    Figure 4-9. Device Selection Wizard

    A new project with a main.c file associated with it will be generated in Atmel Studio.
  5. Replace the ‘main’ function in the main.c file with the following code snippet:
    int main (void)
{
  /* STK600 have eight User Buttons and eight User LEDs which can be connected to any IO pin using cables */
  /* Configure PB0 as input (remember to connect SW0 to PB0 using a cable */
  PORTB.DIRCLR = PIN0_bm;

  /* Configure PB1 as output (remember to connect LED0 to PB1 using a cable*/
  PORTB.DIRSET = PIN1_bm;
	
  while (1)
  {
    /* Check the status of SW0 */
    /* 0: Pressed */
    if (!(PORTB.IN & (PIN0_bm)))
    {
      /* LED0 on */
      PORTB.OUTCLR = PIN1_bm;
    }
    /* 1: Released */
    else
    {
      /* LED0 off */
      PORTB.OUTSET = PIN1_bm;
    }
  }
}
    In the code editor, the code may appear as shown in the figure below.
    Figure 4-10. Code Editor Window
  6. Open project properties by clicking Project → Properties or by using the shortcut ALT+F7.
  7. In Tool view (figure below), set Selected debugger/programmer to STK600 and Interface to UPDI.
    Figure 4-11. Debugger and Interface for ATmega4809
  8. Build the project by clicking Build → Build Solution or using the shortcut F7.
  9. Connect the embedded debugger on STK600 to ATmega4809 by connecting a cable between the ISP/PDI headers, as shown in the figure below.
    Figure 4-12. UPDI Connection on STK600
  10. Connect PB2 to SW0, and PB5 to LED0 by using cables.
  11. Load the code onto the STK600 and start debugging by clicking Debug → Start debugging and break or by using the shortcut ALT+F5. The application is programmed onto the device and the program execution should break in main.
  12. Run the code by clicking Debug → Continue or by using the shortcut F5.
  13. Verify that LED0 is lit when SW0 is pushed on STK600.