Compiled ATmega16 port example project with IAR Embedded workbench.

bacnet-stack/ports/atmega168/hardware.h

@@ -25,16 +25,19 @@
 #ifndef HARDWARE_H
 #define HARDWARE_H
 
-/* The processor clock frequency */
-#define F_CPU (7372800)
+#if !defined(F_CPU)
+    /* The processor clock frequency */
+    #define F_CPU (7372800)
+#endif
 
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
+#if defined(__IAR_SYSTEMS_ICC__) || defined(__IAR_SYSTEMS_ASM__)
+    #include <iom168.h>
+#else
+    #if !defined(__AVR_ATmega168__)
+    #error Firmware is configured for ATmega168 only (-mmcu=atmega168)
+    #endif
+#endif
+#include "iar2gcc.h"
 #include "avr035.h"
 
-#if !defined(__AVR_ATmega168__)
-#error Firmware is configured for ATmega168 only.
-#endif
-
 #endif