diff --git a/platform/stk501/Makefile.stk501 b/platform/stk501/Makefile.stk501
index 8dd9e98ca..4c1c520c0 100644
--- a/platform/stk501/Makefile.stk501
+++ b/platform/stk501/Makefile.stk501
@@ -1,14 +1,19 @@
-CONTIKI_TARGET_DIRS = . dev apps net loader
+CONTIKI_TARGET_DIRS = . dev apps net loader ../../apps/codeprop
 CONTIKI_CORE=contiki-stk501-main
 CONTIKI_TARGET_MAIN = ${CONTIKI_CORE}.o
 
 CONTIKI_TARGET_SOURCEFILES +=	rs232.c slip.c cfs-eeprom.c eeprom.c random.c \
 				mmem.c contiki-stk501-default-init-lowlevel.c \
-				contiki-stk501-default-init-net.c 
+				contiki-stk501-default-init-net.c  contiki-stk501-main.c
+
+#elfloader-avr.c has 16/32 bit pointer problems and won't compile properly for this platform
+#CONTIKI_TARGET_SOURCEFILES += codeprop.c elfloader-avr.c				
 
 CONTIKIAVR=$(CONTIKI)/cpu/avr
 CONTIKIBOARD=.
 
+CONTIKI_PLAT_DEFS = -DF_CPU=16000000UL -DAUTO_CRC_PADDING=2
+
 MCU=atmega128
 AVRDUDE_PROGRAMMER=jtag2
 
diff --git a/platform/stk501/contiki-conf.h b/platform/stk501/contiki-conf.h
index 9ee8f1e4b..b0fe93b5c 100644
--- a/platform/stk501/contiki-conf.h
+++ b/platform/stk501/contiki-conf.h
@@ -43,13 +43,19 @@
 #define __CONTIKI_CONF_H__
 
 /*
- * MCU and clock rate
+ * MCU and clock rate. Various MCUs can be inserted in the ZIF socket.
  */
-#define MCU_MHZ 16
+#ifndef MCU
+#define MCU      atmega128
+#endif
+#ifndef F_CPU
+#define F_CPU    16000000UL
+#endif
 #define PLATFORM PLATFORM_AVR
 
 /* Cock ticks per second */
 #define CLOCK_CONF_SECOND 125
+#define RIME_CONF_BROADCAST_ANNOUNCEMENT_MAX_TIME CLOCK_CONF_SECOND * 524UL /*Default uses 600*/
 
 /* COM port to be used for SLIP connection */
 #define SLIP_PORT RS232_PORT_0
@@ -74,10 +80,10 @@
 #define UIP_CONF_BROADCAST       1
 #define UIP_UDP			 1
 
+#define HAVE_STDINT_H
+#include "avrdef.h"
+
 typedef unsigned short clock_time_t;
-typedef unsigned char u8_t;
-typedef unsigned short u16_t;
-typedef unsigned long u32_t;
 typedef unsigned short uip_stats_t;
 typedef unsigned long off_t;
 
diff --git a/platform/stk501/contiki-stk501-default-init-net.c b/platform/stk501/contiki-stk501-default-init-net.c
index bcc7b1336..037edfb07 100644
--- a/platform/stk501/contiki-stk501-default-init-net.c
+++ b/platform/stk501/contiki-stk501-default-init-net.c
@@ -35,12 +35,18 @@
 
 #include "contiki-stk501.h"
 
+#if UIP_CONF_IPV6
+#warning ********Explcit IPV4 code bypassed***********
+#else
+
 static struct uip_fw_netif slipif =
   {UIP_FW_NETIF(10,100,0,0, 255,255,0,0, slip_send)};
+#endif
 
 void
 init_net(void)
 {
+#if !UIP_CONF_IPV6
   uip_ipaddr_t hostaddr;
 
   rs232_set_input (SLIP_PORT, slip_input_byte); 
@@ -51,4 +57,5 @@ init_net(void)
 
   uip_fw_register(&slipif);
   // uip_fw_default(&slipif);
+#endif /* UIP_CONF_IPV6 */
 }
diff --git a/platform/stk501/contiki-stk501-main.c b/platform/stk501/contiki-stk501-main.c
index 1fcc1522e..38ee2dc85 100644
--- a/platform/stk501/contiki-stk501-main.c
+++ b/platform/stk501/contiki-stk501-main.c
@@ -39,21 +39,32 @@
  *         Simon Barner <barner@in.tum.de
  */
 
+ /* Patched to allow hello-world ipv4 and ipv6 build */
+
 #include <avr/pgmspace.h>
 #include <stdio.h>
+#include "net/uip_arp.h"
 
 #include "contiki-stk501.h"
-#include "cfs/cfs-eeprom.h"
+//#include "../core/cfs/cfs-eeprom.h"
+#include "cfs/cfs.h"
+#include "dev/eeprom.h"
 #include "lib/mmem.h"
 #include "loader/symbols-def.h"
 #include "loader/symtab.h"
-#include "codeprop.h"
+#include "../apps/codeprop/codeprop.h"
 #include "sys/mt.h"
 
 /* Uncomment to enable demonstration of multi-threading libary */
 /* #define MT_DEMO */
 
-PROCINIT(&etimer_process, &tcpip_process, &uip_fw_process, &cfs_eeprom_process);
+//TODO: What happened to cfs_eeprom_process?
+//PROCINIT(&etimer_process, &tcpip_process, &uip_fw_process, &cfs_eeprom_process);
+#if UIP_CONF_IPV6
+PROCINIT(&etimer_process, &tcpip_process);
+#else
+PROCINIT(&etimer_process, &tcpip_process, &uip_fw_process);
+#endif
 
 #ifdef MT_DEMO
 static struct mt_thread threads[3];
@@ -89,7 +100,8 @@ PROCESS_THREAD(contiki_stk501_main_init_process, ev, data)
   mmem_init ();
 
   /* Code propagator */
-  process_start(&codeprop_process, NULL);
+  /* TODO: The core elfloader-avr.c has 16/32 bit pointer problems so this won't build */
+//process_start(&codeprop_process, NULL);
 
   /* Multi-threading support */
 #ifdef MT_DEMO