diff --git a/api/errorcode.cpp b/api/errorcode.cpp
index 4e761bd..e06f1de 100644
--- a/api/errorcode.cpp
+++ b/api/errorcode.cpp
@@ -74,8 +74,9 @@ const char* error2str(int32_t code) {
     ERR2STR(kSMTP2_TipAlreadyLoad);
     ERR2STR(kSMTP2_TipLoadFail);
     default:
+    	return "known";
       break;
   }
 }
 }  // namespace err
-}  // namespace iflytop
\ No newline at end of file
+}  // namespace iflytop
diff --git a/api/packet_interface.hpp b/api/packet_interface.hpp
index 98e0e04..368cefc 100644
--- a/api/packet_interface.hpp
+++ b/api/packet_interface.hpp
@@ -15,10 +15,10 @@ typedef struct {
 #pragma pack(pop)
 
 typedef enum {
-  kpt_cmd       = 0,
-  kpt_ack       = 1,
-  kpt_error_ack = 2,
-} packet_type_t;
+  kptv2_cmd       = 0,
+  kptv2_ack       = 1,
+  kptv2_error_ack = 2,
+} zcan_cmd_packet_type_t;
 
 }  // namespace zcr
 }  // namespace iflytop
diff --git a/protocol_parser.cpp b/protocol_parser.cpp
index c12b326..d04b568 100644
--- a/protocol_parser.cpp
+++ b/protocol_parser.cpp
@@ -4,14 +4,14 @@ using namespace iflytop;
 using namespace std;
 #define TAG "ZIProtocolParser"
 
-#define PROCESS_PACKET_BEGIN(var_cmdid, var_moduleType)                \
-  int32_t* param    = (int32_t*)data;                                  \
-  int      paramNum = (len - sizeof(cmd_header_t)) / sizeof(int32_t);  \
-  if (cmdid == var_cmdid) {                                            \
-    auto* mod = dynamic_cast<var_moduleType*>(module);                 \
-    if (mod == nullptr) {                                              \
-      m_cancmder->sendErrorAck(rxcmd, err::kce_operation_not_support); \
-      return;                                                          \
+#define PROCESS_PACKET_BEGIN(var_cmdid, var_moduleType)                                           \
+  int32_t* param __attribute__((__unused__))    = (int32_t*)data;                                 \
+  int      paramNum __attribute__((__unused__)) = (len - sizeof(cmd_header_t)) / sizeof(int32_t); \
+  if (cmdid == var_cmdid) {                                                                       \
+    auto* mod = dynamic_cast<var_moduleType*>(module);                                            \
+    if (mod == nullptr) {                                                                         \
+      m_cancmder->sendErrorAck(rxcmd, err::kce_operation_not_support);                            \
+      return;                                                                                     \
     }
 
 #define CHECK_PARAM_NUM(num)                                       \
@@ -30,11 +30,13 @@ using namespace std;
   }
 
 #define PROCESS_PACKET_XX(var_cmdid, var_moduleType, var_funcname, XP, XACK, ...) \
-  PROCESS_PACKET_BEGIN(var_cmdid, var_moduleType)                                 \
-  CHECK_PARAM_NUM(XP)                                                             \
-  int32_t ack[XACK + 1] = {0};                                                    \
-  int32_t ecode         = mod->var_funcname(__VA_ARGS__);                         \
-  PROCESS_PACKET_XX_END(XACK)
+  {                                                                               \
+    PROCESS_PACKET_BEGIN(var_cmdid, var_moduleType)                               \
+    CHECK_PARAM_NUM(XP)                                                           \
+    int32_t ack[XACK + 1] = {0};                                                  \
+    int32_t ecode         = mod->var_funcname(__VA_ARGS__);                       \
+    PROCESS_PACKET_XX_END(XACK)                                                   \
+  }
 
 #define PROCESS_PACKET_00(var_cmdid, var_moduleType, var_funcname) PROCESS_PACKET_XX(var_cmdid, var_moduleType, var_funcname, 0, 0)
 #define PROCESS_PACKET_01(var_cmdid, var_moduleType, var_funcname) PROCESS_PACKET_XX(var_cmdid, var_moduleType, var_funcname, 0, 1, &ack[1])
diff --git a/zmodule_device_script_cmder_paser.cpp b/zmodule_device_script_cmder_paser.cpp
index 2b13e07..38384e0 100644
--- a/zmodule_device_script_cmder_paser.cpp
+++ b/zmodule_device_script_cmder_paser.cpp
@@ -1,4 +1,7 @@
 #include "zmodule_device_script_cmder_paser.hpp"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 using namespace iflytop;
 using namespace std;
@@ -9,6 +12,8 @@ using namespace std;
     ack->rawlen  = XACK * 4;                                                                                     \
   });
 
+
+
 #define PROCESS_PACKET_00(var_funcname, cmdhelp) PROCESS_PACKET_XX(var_funcname, cmdhelp, 0, 0)
 #define PROCESS_PACKET_01(var_funcname, cmdhelp) PROCESS_PACKET_XX(var_funcname, cmdhelp, 0, 1, ack->getAck(0))
 #define PROCESS_PACKET_02(var_funcname, cmdhelp) PROCESS_PACKET_XX(var_funcname, cmdhelp, 0, 2, ack->getAck(0), ack->getAck(1))