diff --git a/applications/func/func.c b/applications/func/func.c
index 8faba88..c78edde 100644
--- a/applications/func/func.c
+++ b/applications/func/func.c
@@ -199,10 +199,10 @@ void upSend_thread_entry(void* parameter)
     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
+    //更改后3S单帧数据升为200+，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;
+    cfg.fcurpiece[0] = var/PACK_SIZE+1;
 
     uint8_t tmp[200];
     uint8_t len = cryptSingleMsg(msg->data+var, (msg->len-var)>PACK_SIZE?PACK_SIZE:(msg->len-var), tmp);
@@ -221,6 +221,7 @@ void upSend_thread_entry(void* parameter)
         {
             LOG_E("send error, try to cache %d bytes data to file.",msg->len);
             cacheDataToFile(msg->data, msg->len);
+            break;
         }
     }
     }