diff --git a/applications/_main.c b/applications/_main.c
index c11a7e8..5a29a85 100644
--- a/applications/_main.c
+++ b/applications/_main.c
@@ -70,7 +70,7 @@ void checkTT()
     repGetTT(); //持续更新
 }
 
-static void getFileData_thread_entry(void)
+static void upSendFile_thread_entry(void)
 {
     //等待事件
     extern struct rt_event hw_check; //硬件条件
@@ -78,13 +78,6 @@ static void getFileData_thread_entry(void)
     static rt_uint8_t d[10][200] = { };
     static rt_uint8_t s[10] = { };
 
-//    while (tcpInit() != RT_EOK)
-//    {
-//        LOG_W("TT server is not ready.");
-//        rt_thread_mdelay(100);
-//    }
-//    LOG_D("TT server is ready.");
-
     while (1)
     {
         if (rt_event_recv(&hw_check, ALL_READY, RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
@@ -103,8 +96,6 @@ static void getFileData_thread_entry(void)
                 for (size_t var = 0; var < len; var++)
                 {
                     sendMsg(d[var], s[var]);
-//                    LOG_D("i = %d", var);
-//                    LOG_HEX("d", 27, d[var], s[var]);
                 }
                 tcpClose();
                 LOG_I("Done.");
@@ -115,10 +106,10 @@ static void getFileData_thread_entry(void)
 }
 
 //MSH_CMD_EXPORT(getFileData_thread_entry,tet);
-static void gg(void)
+static void upSendFile(void)
 {
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("PSmsg", getFileData_thread_entry, RT_NULL, 1024 * 12, 27, 10);
+    rt_thread_t thread = rt_thread_create("upSendFile", upSendFile_thread_entry, RT_NULL, 1024 * 12, 27, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {
@@ -126,13 +117,13 @@ static void gg(void)
     }
     else
     {
-        LOG_E("thread 'PSmsg' create failure.");
+        LOG_E("thread 'upSendFile' create failure.");
         return;
     }
 }
 
 
-static void try()
+static void chkAndSendFile_thread_entry()
 {
     static rt_err_t rst = RT_ERROR;
     updatecfg();
@@ -178,44 +169,23 @@ static void try()
             }
         }
 //continue;
-        //发送数据
+//发送数据
 //可能有多个待发文件，每个文件打包后为一个二维数组
-//        如果先打包后发送，需要三维数组，和大内存占用
-//        故改为“打包-发送”轮询操作
-//gg();
-#ifdef _NO
-        char *f="1023_05_19_15_29_59_254.txt";
-        //    pack file
-//        static rt_uint8_t d[10][200] = { };
-//        static rt_uint8_t s[10] = { };
-        rt_uint8_t len = 0;
-        //    LOG_D("%p--%p",d,s);
-        //    LOG_I("pack %s ...",f);
-        len = pack_File(f, 0, d, s);
-        rt_kprintf("len is %d\n", len);
-        if (len)
-        {
-            for (size_t var = 0; var < len; ++var)
-            {
-                //                    LOG_HEX("d",27,d[var],s[var]);
+//如果先打包后发送，需要三维数组，和大内存占用
+//故改为“打包-发送”轮询操作
+//        upSendFile();
 
-            }
-            LOG_I("Done.");
-        }
-#endif
         LOG_I("----------------------------");
-//initEvent();
-//        rt_thread_mdelay(100);
 
     }
 }
 
 
 
-void smsg()
+void chkAndSendFile()
 {
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("checkSta", try, RT_NULL, 1024 * 5, 24, 10);
+    rt_thread_t thread = rt_thread_create("chk&send", chkAndSendFile_thread_entry, RT_NULL, 1024 * 5, 24, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {
@@ -223,7 +193,7 @@ void smsg()
     }
     else
     {
-        LOG_E("thread 'checkSta' create failure.");
+        LOG_E("thread 'chk&send' create failure.");
         return;
     }
 }
@@ -262,8 +232,8 @@ void deiniCnt()
 
 #define FUNC_DEMO
 #ifdef FUNC_DEMO //测试时导出命令到控制台
-MSH_CMD_EXPORT(smsg, smsg);
-MSH_CMD_EXPORT(gg, file);
+MSH_CMD_EXPORT(chkAndSendFile, chkAndSendFile);
+MSH_CMD_EXPORT(upSendFile, upSendFile);
 MSH_CMD_EXPORT(iniCnt,初始化tcp连接);
 MSH_CMD_EXPORT(deiniCnt,初始化tcp连接);
 #endif
diff --git a/applications/func/func.c b/applications/func/func.c
index 6164745..97cbc14 100644
--- a/applications/func/func.c
+++ b/applications/func/func.c
@@ -15,6 +15,57 @@
 #define LOG_LVL LOG_LVL_DBG
 #include <ulog.h>
 
+/**
+ * 将收发数据以ASCII字符形式存入log
+ * @param din 待存储数据
+ * @param len 数据长度
+ * @return 1-正常，0-异常
+ */
+int trDataTolog(uint8_t *din, size_t len, uint8_t isTx)
+{
+    char rootDir[22] = ROOT_PATH_LOG;
+    mkdir(rootDir, 0);
+
+    char tstmp[30] = "";
+    char fn[50] = "";
+    strcat(fn,rootDir);
+    strcat(fn,"20");
+    strcat(fn,date2Str(tstmp));//以小时为独立文件
+    fn[strlen(fn)-3]='\0';
+    strcat(fn,"/");
+    mkdir(fn, 0);
+
+    strcat(fn,tstmp);
+    strcat(fn,".log");
+
+    int fd = open(fn, O_WRONLY | O_CREAT | O_APPEND);
+    if (fd < 0)
+    {
+        LOG_E("open file %s failed!", fn);
+        return -RT_ERROR;
+    }
+    else
+    {
+        char log[300]="";
+        char tmp[200]="";
+        strcat(log,getTimestmp(tmp));
+        strcat(log,isTx?" [T]: ":" [R]: ");
+//        strcat(log,bytes2str(din, len, 16, " ", tmp));
+        strcat(log,din);
+        strcat(log,"\r\n");
+
+        int rst = write(fd, log, strlen(log));
+        if (rst != strlen(log))
+        {
+            LOG_E("write to file %s failed!", fn);
+            close(fd);
+            return -RT_ERROR;
+        }
+        close(fd);
+        return RT_EOK;
+    }
+}
+
 RT_WEAK int set_cfg(const char *k, const char*v)
 {
     return;
@@ -115,6 +166,7 @@ void upSend_thread_entry(void* parameter)
         {
             tcpClose();
             LOG_I("send to TT Done.");
+
         };
     }
     return 0;
@@ -127,6 +179,28 @@ void upSend_thread_entry(void* parameter)
  */
 RT_WEAK int upSend(uint8_t *din, size_t len)
 {
+    LOG_D("try to upsend to TT.");
+
+    uint8_t sta = 1;
+    while (0 && !isTTjh()) //判断TT状态
+    {
+        static uint8_t trycnt = 0;
+        rt_thread_mdelay(4000);
+        trycnt += 1;
+        if (trycnt > 3)
+        {
+            sta = 0; //try 3 time
+            break;
+        }
+    }
+    if (!sta) {
+        //cache to file
+        LOG_W("TT is not ready, try to cache %d bytes data to file.",len);
+        cacheDataToFile(din, len);
+//        trDataTolog(din, len, 1);
+        return -RT_ERROR;
+    }
+
     //此函数有打包操作，需线程操作
 //    LOG_D("upsend.");
 //    return 0;
@@ -137,16 +211,17 @@ RT_WEAK int upSend(uint8_t *din, size_t len)
     msg.len=len;
 
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("upSend", upSend_thread_entry, (void *) &msg, 1024 * 10, 27, 10);
+    rt_thread_t thread = rt_thread_create("upSend", upSend_thread_entry, (void *) &msg, 1024 * 5, 27, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {
         rt_thread_startup(thread);
+        return RT_EOK;
     }
     else
     {
         LOG_E("thread 'upSend' create failure.");
-        return;
+        return -RT_ERROR;
     }
 }
 
@@ -567,7 +642,7 @@ void ttRunCMD(uint8_t *din, size_t len)
 }
 
 
-RT_WEAK int xpParse(uint8_t * din, size_t len)
+RT_WEAK int formatAndSendTo3S(uint8_t * din, size_t len)
 {
 //    LOG_D("直接调用小彭的函数进行处理。");
     char str[200] = "RCV:";
@@ -642,7 +717,7 @@ void parse3SData(uint8_t *din, size_t count)
     {
         //
 
-        xpParse(din,count);
+        formatAndSendTo3S(din,count);
     }
     if (din[2] == ADDR_ANJI)
     {
@@ -656,7 +731,14 @@ void parse3SData(uint8_t *din, size_t count)
             reportDepth(din, count);
             break;
         default:
-            cacheData(din, count);
+            if (isTTon())
+            {//如果TT为开机状态（具备通信状态？待商榷）则不缓存直接发
+                upSend(din, count);
+            }
+            else {
+                cacheDataToFile(din, count);
+            }
+
         }
 //    upSend(din, count);
 }
@@ -736,6 +818,40 @@ void parseTTData(uint8_t *din, size_t len)
 
 }
 
+/**
+ * get file size
+ * @param file file name whith fullpath
+ */
+unsigned long getFileSize(char *file)
+{
+    struct stat stat;
+    char *fullpath, *path;
+
+    #ifdef DFS_USING_WORKDIR
+        /* open current working directory */
+        path = rt_strdup("/");
+    #endif
+
+    /* build full path for each file */
+    fullpath = dfs_normalize_path(path, file);
+
+    rt_memset(&stat, 0, sizeof(struct stat));
+    if (dfs_file_stat(fullpath, &stat) == 0)
+    {
+        return (unsigned long) stat.st_size;
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+void d_getFileSize(int argc, char ** argv)
+{
+//    char *f;
+    uint16_t size = (uint16_t)getFileSize(argv[1]);
+    LOG_D("size = %d Byte.",size);
+}
 
 /**
  * 缓存任务数据
@@ -743,11 +859,11 @@ void parseTTData(uint8_t *din, size_t len)
  * @param len 任务数据长度
  * @return 0--正常，-1--异常
  */
-int cacheData(uint8_t *din, size_t len)
+int cacheDataToFile(uint8_t *din, size_t len)
 {
     LOG_I("FUNC = cache and upsend");
-    static int cnt = 0;
-    LOG_D("cached size=%d", cnt);
+    static uint16_t cnt = 0;
+    LOG_D("already cached %d bytes.", cnt);
     char rootDir[22] = "/sd/rxdata/";
     mkdir(rootDir, 0);
 
@@ -772,10 +888,10 @@ int cacheData(uint8_t *din, size_t len)
         strcat(f, rootDir);
 //        strcpy(f,rootDir);
         strcat(f, "23_07_19_16_38_36_36.bin");
-        LOG_D("need to creat new file");
+//        LOG_D("need to creat new file");
         strncpy(f + strlen(rootDir), ts, strlen(ts));
     }
-    LOG_D("f=%s", f);
+//    LOG_D("f=%s", f);
     int fd = open(f, O_WRONLY | O_CREAT | O_APPEND);
     if (fd < 0)
     {
@@ -793,6 +909,7 @@ int cacheData(uint8_t *din, size_t len)
         }
         cnt += len;
         close(fd);
+        LOG_I("cached %d bytes data to '%s'.",cnt,f);
     }
 
     return RT_EOK;
@@ -802,7 +919,7 @@ void d_cacheData()
     uint8_t demo[200];
     size_t len = sizeof(demo);
     memset(demo,0xAB,len);
-    cacheData(demo, len);
+    cacheDataToFile(demo, len);
 }
 
 
@@ -819,7 +936,9 @@ void parseRS232(uint8_t *din, size_t len)
         //check
         if (memcmp(din,asciiHead,sizeof(asciiHead)) == 0) {
             //ascii
+            trDataTolog(din, len, 0);
             LOG_I("type = ASCII");
+
             uint8_t index[10];
             uint8_t tmpHead[]={0x35, 0x41, 0x41, 0x35};
             size_t n=isInByte(din, len, tmpHead, sizeof(tmpHead), index);
@@ -847,6 +966,8 @@ void parseRS232(uint8_t *din, size_t len)
         else//如果不是ASCII则统一按HEX计// if (memcmp(din,hexHead,sizeof(hexHead)) == 0)
         {
             //hex
+            char tmp[200]="";
+            trDataTolog(bytes2str(din, len, 16, " ", tmp), strlen(tmp), 0);
             LOG_I("type = HEX");
 
             uint8_t index[10];
@@ -891,6 +1012,7 @@ MSH_CMD_EXPORT(selfTest,sysSelfTest);
 MSH_CMD_EXPORT(d_packLocMsg,dpackLocMsg);
 MSH_CMD_EXPORT(packAndSendLoc,packAndSendLoc);
 MSH_CMD_EXPORT(d_cacheData,d_cacheData);
+MSH_CMD_EXPORT(d_getFileSize,d_getFileSize);
 #endif
 
 
diff --git a/applications/func/func.h b/applications/func/func.h
index feaff34..bb853ed 100644
--- a/applications/func/func.h
+++ b/applications/func/func.h
@@ -79,6 +79,7 @@ enum
 #define ADDR_TT 0x41
 #define ADDR_3S 0x32
 
-
+#define ROOT_PATH_LOG "/sd/log/"
+#define ROOT_PATH_DATA "/sd/rxdata/"
 
 #endif /* APPLICATIONS_FUNC_FUNC_H_ */
diff --git a/applications/getinfo.c b/applications/getinfo.c
index a2c7b84..3f7f950 100644
--- a/applications/getinfo.c
+++ b/applications/getinfo.c
@@ -389,12 +389,24 @@ void getTT(int argc, char **argv)
 /* 导出到自动初始化 */
 MSH_CMD_EXPORT(getTT, 获取天通信息，支持参数。 "getTT 3 1" means try 3 times with 1 second interval.);
 //MSH_CMD_EXPORT_ALIAS(webclient_get_data, gTTinfo, GET info of TT server.);
-
+/**
+ * 判断TT是否为开机状态
+ * @return 1-开机，0-关机
+ */
 int isTTon(void)
 {
    return !rt_pin_read(TT_EN);
 }
 
+/**
+ * 判断TT是否激活
+ * @return 1-已激活，0-未激活
+ */
+int isTTjh(void)
+{
+    return atoi(TTinfo->jh);
+}
+
 void repGetTT_thread_entry(void* parameter)
 {
     while(!isTTon())//第一次运行时未上电则等待
diff --git a/applications/tools.c b/applications/tools.c
index e38fb3e..f554517 100644
--- a/applications/tools.c
+++ b/applications/tools.c
@@ -79,7 +79,8 @@ void hexFile_thread_entry(void* parameter)
     rt_uint8_t *buffer = RT_NULL;
 #define READ_BUFFER_SIZE 512
     buffer = (rt_uint8_t *) malloc(READ_BUFFER_SIZE);
-    rt_kprintf("------Start------\n");
+    rt_kprintf("\n------Start------\n");
+    LOG_D("size = %d bytes.",file_size);
     for (size_t i = 0; i < file_size; i += READ_BUFFER_SIZE)
     {
         if ((file_size - i) < READ_BUFFER_SIZE)
@@ -153,7 +154,29 @@ char *time2Str(char *str)
     return str;
 
 }
+char *date2Str(char *str)
+{
+    uint8_t t[10];
+    size_t len=time2Byte(t);
+    bytes2str(t, len, 10, "_", str);
+//    len = strlen(str);
+    str[11]='\0';
+    return str;
 
+}
+char *getTimestmp(char *str)
+{
+    uint8_t t[10];
+    size_t len=time2Byte(t);
+    str[0]='\0';
+    strcat(str,"20");
+    bytes2str(t, len, 10, "-", str+2);
+    str[10]='_';
+    len = strlen(str);
+    str[len]='\0';
+    return str;
+
+}
 
 
 void tm2str(int argc, char **argv)
@@ -161,6 +184,8 @@ void tm2str(int argc, char **argv)
     char s[30];
     time2Str(s);
     LOG_I("result is %s",s);
+    getTimestmp(s);
+    LOG_I("result is %s",s);
 }
 MSH_CMD_EXPORT(tm2str,时间转换为字符串)
 
diff --git a/applications/ttTR.c b/applications/ttTR.c
index ce0ee77..6080c9e 100644
--- a/applications/ttTR.c
+++ b/applications/ttTR.c
@@ -282,6 +282,9 @@ int sendMsg(const rt_uint8_t *msg, size_t len)
         };
 
 #endif
+    char str[400];
+    bytes2str(msg, len, 16, " ", str);
+    trDataTolog(str, strlen(str), 1);
     return RT_EOK;
 
 }
diff --git a/applications/uart_3S.c b/applications/uart_3S.c
index f80d395..ec8d601 100644
--- a/applications/uart_3S.c
+++ b/applications/uart_3S.c
@@ -119,26 +119,6 @@ static void serial_thread_entry(void *parameter)
             LOG_I("%d Bytes received from RS232",rx_length);
             LOG_HEX("232rx:",16,rx_buffer,rx_length);//print what received.
             parseRS232(rx_buffer, rx_length);
-#ifdef TR_ACK
-            /* 回传收到的消息 */
-            rt_device_write(serial, 0, rx_buffer+rx_length, rx_length);
-#endif
-//            if (0 && currLen > 1024) //大于1k则存盘
-//            {
-//
-//                int fd =open(f,O_WRONLY | O_CREAT|O_APPEND);
-//                if(fd <0)
-//                {
-//                    LOG_E("open file %s failed!", f);
-//                }
-//                else
-//                {
-//                    write(fd,rx_buffer,rx_length);
-//                    close(fd);
-//                    currLen = 0;
-//                    rx_length=0;
-//                }
-//            }
         }
 
     }
@@ -202,7 +182,7 @@ static int uart_dma_sample(int argc, char *argv[])
 
 
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("serial", serial_thread_entry, RT_NULL, 1024*2, 25+1, 10);
+    rt_thread_t thread = rt_thread_create("serial", serial_thread_entry, RT_NULL, 1024*5, 25+1, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {