diff --git a/applications/func/func.c b/applications/func/func.c
index c0cab66..8faba88 100644
--- a/applications/func/func.c
+++ b/applications/func/func.c
@@ -194,20 +194,23 @@ void upSend_thread_entry(void* parameter)
     time2Str(fin);
     strcat(fin,".bin");
     packInit(&cfg, fin, 0); //写入配置
+#define PACK_SIZE 130
     cfg.fcurpiece[0] = 1;
-    cfg.fallpiece[0] = 1;
+    cfg.fallpiece[0] = msg->len/PACK_SIZE+1;
 #ifdef CRYPT_BEFRE_PACK
     //crypt before pack
+    //更改后3S单帧数据由160升为240，超出TT最大单包数据容量，须分包
+
+    for (size_t var = 0; var < msg->len; var=var+PACK_SIZE) {
+    cfg.fcurpiece[0] = var+1;
+
     uint8_t tmp[200];
-    uint8_t len = cryptSingleMsg(msg->data, msg->len, tmp);
-    if (len>170) {
-        LOG_W("length of msg is too long.[%d->%d]",msg->len,len);
-    }
+    uint8_t len = cryptSingleMsg(msg->data+var, (msg->len-var)>PACK_SIZE?PACK_SIZE:(msg->len-var), tmp);
     size_t rst = packMsg(&cfg, tmp, len, dout);//packMsgs
 #else
     size_t rst = packMsg(&cfg, tmpmsg->data, msg->len, dout);//packMsgs
 #endif
-    LOG_HEX("upSend", 27, dout, rst);
+//    LOG_HEX("upSend", 27, dout, rst);
     if (rst)
     {
         if (sendMsg(dout, rst) == RT_EOK)
@@ -220,12 +223,14 @@ void upSend_thread_entry(void* parameter)
             cacheDataToFile(msg->data, msg->len);
         }
     }
+    }
+
 //    rt_sem_release(one_msg_send_done);
 //    list_thread();
     return ;
 }
 /**
-   *   上傳天通數據
+   *   上傳单帧天通數據
  * @param din 待發送數據
  * @param len 待發送數據的長度
  * @return
@@ -1682,7 +1687,7 @@ void parseRS232(uint8_t *din, size_t len)
             for (size_t i = 0; i < n; i++)
             {
                 //按帧头分割
-                uint8_t ndin[300];
+                uint8_t ndin[MAX_LEN_3S];
                 int cnt=(i+1<n)?index[i+1]-index[i]:len-index[i];
                 memcpy(ndin,din+index[i],cnt);
                 if (n>1)  LOG_HEX("frame",16,ndin,cnt);
diff --git a/applications/usrcfg.h b/applications/usrcfg.h
index 530be2e..5fa1284 100644
--- a/applications/usrcfg.h
+++ b/applications/usrcfg.h
@@ -70,4 +70,5 @@ typedef struct
 #define UPDATE_INTERVAL 10
 #define RELAY
 
+#define MAX_LEN_3S 300
 #endif /* APPLICATIONS_USRCFG_H_ */