Added info about Watchdog Timer.

bacnet-stack/ports/bdk-atxx4-mstp/init.c

@@ -58,6 +58,6 @@ void init(
     DDRD = 0;
     PORTD = 0;
     /* Configure the watchdog timer - Disabled for testing */
-    BIT_CLEAR(MCUSR, WDRF);
+    /* wdt_enable(WDTO_2S); */
-    WDTCSR = 0;
+    wdt_disable();    
 }

bacnet-stack/ports/bdk-atxx4-mstp/main.c

@@ -231,6 +231,7 @@ int main(
     /* Enable global interrupts */
     __enable_interrupt();
     for (;;) {
+        wdt_reset();
         input_task();
         bacnet_task();
         led_task();