diff --git a/app/drivers/sertrf/protocol/p_protocol.c b/app/drivers/sertrf/protocol/p_protocol.c
index 23df10b..75a36cf 100644
--- a/app/drivers/sertrf/protocol/p_protocol.c
+++ b/app/drivers/sertrf/protocol/p_protocol.c
@@ -145,15 +145,17 @@ protocol_status_t get_protocol_status(void)
 {
     protocol.protocol_status = PROTOCOL_STATUS_OK;
 
-    if(protocol.pro_type == PROTOCOL_IDLE)
+    // 先OTA升级、未知协议、未收到飞控数据
+    if(protocol.message_status == MESSAGE_OTA)
+    {
+        protocol.protocol_status = PROTOCOL_STATUS_IN_OTA;
+    }
+    else if(protocol.pro_type == PROTOCOL_IDLE)
     {
         protocol.protocol_status = PROTOCOL_STATUS_TYPE_IDLE;
     } else if(protocol.analysis_sussess_count == 0)
     {   
         protocol.protocol_status = PROTOCOL_STATUS_NO_DATA;
-    } else if(protocol.message_status == MESSAGE_OTA)
-    {
-        protocol.protocol_status = PROTOCOL_STATUS_IN_OTA;
     }
 
     protocol.analysis_sussess_count = 0;
diff --git a/app/drivers/sertrf/sertrf.c b/app/drivers/sertrf/sertrf.c
index d258639..165ccd1 100644
--- a/app/drivers/sertrf/sertrf.c
+++ b/app/drivers/sertrf/sertrf.c
@@ -394,7 +394,12 @@ void resend_user_parse(void *resend_device)
             //设置协议状态，为了后续灯颜色变化
             protocol_set_message_status(MESSAGE_OTA);
             // if(!sertrf.resend_device.status.resend_flag)
+            //初始化ota会占用大量系统资源，需要先把飞控获取数据关闭，不然会导致栈溢出
+            sb_data_port_stop(sertrf.device.embedded_device);
             otau_init(&sertrf.otau);
+
+
+            sertrf.mode_status.task_state = DATA_HANDLE_OTA_DATA;
             resend_send_cmd(resend_device, RESEND_CMD_ACK, 0);
         }
             break;