27.8.1.2.2 Workflow

  1. Retrieve the cause of the system reset to determine if the Watchdog module was the cause of the last reset. 
    enum system_reset_cause reset_cause = system_get_reset_cause();
  2. Turn on or off the board LED based on whether the Watchdog reset the device. 
    if (reset_cause == SYSTEM_RESET_CAUSE_WDT) {
    port_pin_set_output_level(LED_0_PIN, LED_0_INACTIVE);
}
else {
    port_pin_set_output_level(LED_0_PIN, LED_0_ACTIVE);
}
  3. Enter an infinite loop to hold the main program logic. 
    while (true) {
  4. Test to see if the board button is currently being pressed. 
    if (port_pin_get_input_level(BUTTON_0_PIN) == false) {
  5. If the button is pressed, turn on the board LED and reset the Watchdog timer. 
    port_pin_set_output_level(LED_0_PIN, LED_0_ACTIVE);

wdt_reset_count();