Compiling with CRC tables.

bacnet-stack/ports/atmega168/Makefile

@@ -82,7 +82,12 @@ COMMON = -mmcu=$(MCU)
 OPTIMIZATION = -Os -mcall-prologues
 
 ## Compile options common for all C compilation units.
-BFLAGS = -DBACDL_MSTP -DMAX_APDU=50 -DBIG_ENDIAN=0 -DMAX_TSM_TRANSACTIONS=0
+BFLAGS = -DBACDL_MSTP
+BFLAGS += -DMAX_APDU=50
+BFLAGS += -DBIG_ENDIAN=0
+BFLAGS += -DMAX_TSM_TRANSACTIONS=0
+#BFLAGS += -DCRC_USE_TABLE
+BFLAGS += -DTEST_MSTP
 CFLAGS = $(COMMON)
 CFLAGS += -Wall -gdwarf-2 $(BFLAGS) $(OPTIMIZATION) -fsigned-char
 CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d
@@ -104,8 +109,8 @@ HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
 HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings
 
 ## Objects that must be built in order to link
-OBJECTS = $(COBJ) $(DEMOOBJ)
-#OBJECTS = $(COBJ)
+#OBJECTS = $(COBJ) $(DEMOOBJ)
+OBJECTS = $(COBJ)
 
 ## Build
 TARGET_ELF=$(TARGET).elf

bacnet-stack/ports/atmega168/main.c

@@ -91,7 +91,7 @@ void task_milliseconds(void)
     }
 }
 
-#if 0
+#if defined(TEST_MSTP)
 void apdu_handler(BACNET_ADDRESS * src,     /* source address */
         uint8_t * apdu,         /* APDU data */
         uint16_t pdu_len)      /* for confirmed messages */
@@ -117,14 +117,18 @@ int main(void)
 #endif
     datalink_init(NULL);
     /* broadcast an I-Am on startup */
+#if !defined(TEST_MSTP)
     iam_send(&Handler_Transmit_Buffer[0]);
+#endif
     for (;;) {
         task_milliseconds();
         /* other tasks */
         /* BACnet handling */
         pdu_len = datalink_receive(&src, &PDUBuffer[0], sizeof(PDUBuffer), 0);
         if (pdu_len) {
+#if !defined(TEST_MSTP)
             npdu_handler(&src, &PDUBuffer[0], pdu_len);
+#endif
         }
     }