diff --git a/sdk/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp b/sdk/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
index 10920db..89f816f 100644
--- a/sdk/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
+++ b/sdk/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
@@ -251,7 +251,7 @@ int32_t StepMotorCtrlModule::step_motor_stop(int32_t breakstop) {
 int32_t StepMotorCtrlModule::step_motor_easy_set_current_pos(int32_t pos) { return setnowpos(pos); }
 
 int32_t StepMotorCtrlModule::step_motor_active_cfg() {
-  ZLOGI(TAG, "m%d motor_active_cfg", module_id);
+  // ZLOGI(TAG, "m%d motor_active_cfg", module_id);
   m_stepM1->enable(false);
   m_stepM1->setMRES((mres_type_t)m_cfg.stepmotor_mres);
   m_stepM1->setIHOLD_IRUN(m_cfg.stepmotor_ihold, m_cfg.stepmotor_irun, m_cfg.stepmotor_iholddelay);
diff --git a/sdk/components/zcan_protocol_parser/zcan_protocol_parser.cpp b/sdk/components/zcan_protocol_parser/zcan_protocol_parser.cpp
index a23261a..cb62953 100644
--- a/sdk/components/zcan_protocol_parser/zcan_protocol_parser.cpp
+++ b/sdk/components/zcan_protocol_parser/zcan_protocol_parser.cpp
@@ -251,6 +251,13 @@ void ZCanProtocolParser::_processRxPacket(ZIModule* module, zcr_cmd_header_t* rx
     return;
   }
 
+  // static int32_t lastindex = 0;
+  // // ZLOGI(TAG, "rx index:%d", rxcmd->index);
+  // if (rxcmd->index != lastindex + 1) {
+  //   ZLOGI(TAG, "lost packet:%d", lastindex - rxcmd->index);
+  // }
+  // lastindex = rxcmd->index;
+
   cmdcontxt_t cxt = {0};
   cxt.module      = module;
   cxt.rxcmd       = rxcmd;
diff --git a/sdk/components/zcancmder/zcanreceiver.cpp b/sdk/components/zcancmder/zcanreceiver.cpp
index 13f30d3..415d3b2 100644
--- a/sdk/components/zcancmder/zcanreceiver.cpp
+++ b/sdk/components/zcancmder/zcanreceiver.cpp
@@ -299,6 +299,8 @@ void ZCanReceiver::STM32_HAL_onCAN_RxFifo0MsgPending(CAN_HandleTypeDef *canHandl
     if (pHeader.RTR != CAN_RTR_DATA || pHeader.IDE != CAN_ID_STD) continue;
     if (pHeader.DLC == 0) continue;
 
+    // printf(".");
+
     /**
      * @brief 处理接收到的数据
      */
@@ -337,8 +339,10 @@ void ZCanReceiver::STM32_HAL_onCAN_RxFifo0MsgPending(CAN_HandleTypeDef *canHandl
       curRxBuf->npacket = nframe;
       bool pass         = rxprocesser->filterPacket(curRxBuf);
       if (pass) {
+        // printf("y\n");
         m_pendingMsgQueue.sendIRQ(curRxBuf);
       } else {
+        // printf("x\n");
         m_rxFramePool.free(&curRxBuf);
       }
     }