diff --git a/CanPorts.h b/CanPorts.h
index 8f0ca56..35ad500 100644
--- a/CanPorts.h
+++ b/CanPorts.h
@@ -7,11 +7,16 @@
 
 #include "CanSerialPortFrame.h"
 
-#define PROTOCOL_XCP_ID 0x23
-
 #define PROTOCOL_CAN_RAW 0
+
 #define PROTOCOL_CAN_XCP 1
+#define PROTOCOL_CAN_ADR_XCP 0x250
+#define PROTOCOL_CAN_TYPE_XCP 0x00
+
 #define PROTOCOL_CAN_UDS 2
+#define PROTOCOL_CAN_ADR_UDS 0x7BB
+#define PROTOCOL_CAN_TYPE_UDS 0x00
+
 
 typedef struct {
     tCanSerialPortFrameFlagchip Can0;