upSendFile_thread_entry 逻辑更新，发送前判断TT状态，避免临时掉线

applications/core.c

@@ -469,12 +469,13 @@ static void upSendFile_thread_entry(void *parameter)
         {
             if (!f->index || (var+1) == f->index)
             { //index=0 全发，或者仅发index
-                if (sendMsg(d[var], s[var]) == RT_EOK) {
+                if (isTTjh() && sendMsg(d[var], s[var]) == RT_EOK) {
                     LOG_D("send pack[%d] with %d bytes done.",var+1,s[var]);
                 }
                 else {
+                    LOG_E("TT未到位或发送失败");
                     issendall=0;
-                    break;
+//                    break;
                 }
                 rt_thread_mdelay(3000);//发送间隔，目前服务器未处理，暂设为3s避免粘包
             }