diff --git a/applications/alarmer.c b/applications/alarmer.c
index 1bcf053..032a108 100644
--- a/applications/alarmer.c
+++ b/applications/alarmer.c
@@ -73,7 +73,7 @@ void pdTT_callback(rt_alarm_t alarm, time_t timestamp)
 //每个开窗设置对应两个rtc闹钟，一个上电一个下电
 //更新开窗设置前需要先清空闹钟设置。可改为调用rt_alarm_control()修改。
 static struct rt_alarm *alarm[4];//支持2组开窗共4个闹钟
-
+#ifndef al
 void InitAlarm()
 {
     struct rt_alarm_setup setup;
@@ -130,6 +130,13 @@ void InitAlarm()
             }
         }
 }
+#else
+void updateAlarm(uint8_t *t, size_t len);
+void InitAlarm()
+{
+    updateAlarm(scfg.openWindowTime, 8);
+}
+#endif
 INIT_APP_EXPORT(InitAlarm);
 /**
  * 更新rtc闹钟
@@ -170,8 +177,9 @@ void updateAlarm(uint8_t *t, size_t len)
         rt_alarm_delete(alarm[1]); //
     }
     alarm[1] = rt_alarm_create(pdTT_callback, &setup);
+
     setup.wktime.tm_hour = t[4]; //开窗2开启点
-    setup.wktime.tm_min = t[5]; //开窗1开启点
+    setup.wktime.tm_min = t[5]; //开窗2开启点
     if (RT_NULL != alarm[2])
     {
         rt_alarm_delete(alarm[2]); //
@@ -179,7 +187,7 @@ void updateAlarm(uint8_t *t, size_t len)
     alarm[2] = rt_alarm_create(poTT_callback, &setup);
 
     setup.wktime.tm_hour = t[6]; //开窗2闭合点
-    setup.wktime.tm_min = t[7]; //开窗1开启点
+    setup.wktime.tm_min = t[7]; //开窗2开启点
     if (RT_NULL != alarm[3])
     {
         rt_alarm_delete(alarm[3]); //
diff --git a/applications/cfg.c b/applications/cfg.c
index a276291..8d2624c 100644
--- a/applications/cfg.c
+++ b/applications/cfg.c
@@ -27,6 +27,7 @@ static void setLock()
     while(islock)
     {
         rt_thread_mdelay(1000);
+//        LOG_W("file locked");
     }
     islock=1;
 }
@@ -82,14 +83,14 @@ int set_cfg(const char *k, long v)
 {
 //    setLock();
 
-    if (rt_strcmp(v,"NULL") == 0) {//delete key
-        v = NULL;
-
-    }
+//    if (rt_strcmp(v,"NULL") == 0) {//delete key
+//        v = NULL;
+//
+//    }
 //    clearLock();
     if (v == get_cfg(k)) {
         LOG_D("nothing needs to change.");
-        clearLock();
+//        clearLock();
         return 1;
     }
     setLock();
@@ -113,12 +114,20 @@ int set_cfg(const char *k, long v)
 
 int set_cfgs(const char *k, const char * v)
 {
-    setLock();
+//    setLock();
 
-    if (rt_strcmp(v,"NULL") == 0) {//delete key
+    if (strcmp(v,"NULL") == 0) {//delete key
         v = NULL;
 
     }
+    char tmp[20];
+    get_cfgs(k,tmp);
+    if (strcmp(v,tmp) == 0) {
+        LOG_D("nothing needs to change.");
+//        clearLock();
+        return 1;
+    }
+    setLock();
     int rst =  ini_puts("config",k,v,LJW_CFG_FILE_NAME);
 //    int rst = ini_putl("config", k, v, LJW_CFG_FILE_NAME);
     if (rst == 1) {
@@ -162,7 +171,7 @@ int get_cfg(const char *k)
     return rst;
 }
 
-int get_cfgs(const char *k)
+int get_cfgs(const char *k, char *str)
 {
     setLock();
     char buf[MAX_KEY_LEN];
@@ -178,6 +187,7 @@ int get_cfgs(const char *k)
     else {
 //        LOG_I("%s = %s",k,buf);
 //        LOG_I("%s = %d",k,rst);
+        strcpy(str,buf);
     }
     clearLock();
     return rst;
@@ -346,6 +356,7 @@ int setFileToSend(const char *f, int v)
         nclearLock();
         return RT_ERROR;
     }
+    LOG_D("add %s-%d to list.",f,v);
     nclearLock();
     return RT_EOK;
 }
@@ -355,7 +366,7 @@ int setFileToSend(const char *f, int v)
  * @param v 对应包文件的索引，默认为0即全发
  * @return 待发文件个数
  */
-int getFilesToSend(char (*kstr)[MAX_KEY_LEN], int *v)
+size_t getFilesToSend(char (*kstr)[MAX_KEY_LEN], int *v)
 {
 //    char buf[MAX_KEY_LEN];
 //    char kstr[MAX_KEY_LEN];
@@ -364,6 +375,9 @@ int getFilesToSend(char (*kstr)[MAX_KEY_LEN], int *v)
     for (size_t k = 0; ini_getkey(SECTION_TO_SEND, k, kstr[len], MAX_KEY_LEN, FILE_TO_SEND) > 0; k++) {
         v[len] = ini_getl(SECTION_TO_SEND, kstr[len], -1, FILE_TO_SEND);
         len +=1;
+        if (len>5) {
+            break;
+        }
     }
     nclearLock();
     return len;
@@ -386,13 +400,21 @@ int clearFileToSend(const char *k)
 static void gf()
 {
     int v[MAX_KEY_LEN];
-    char kstr[30][MAX_KEY_LEN];
+    char kstr[10][MAX_KEY_LEN];
     size_t cnt = getFilesToSend(kstr, v);
-    for (size_t var = 0; var < cnt; var++)
+    if (!cnt) {
+        LOG_D("no files waiting to be sent");
+    }
+    else
     {
-        LOG_I("%s -- %d", kstr[var], v[var]);
+        for (size_t var = 0; var < cnt; var++)
+        {
+            LOG_I("%s -- %d", kstr[var], v[var]);
+        }
+//        cnt = getFilesToSend(kstr, v);
     }
 }
+
 static void add(int argc, char **argv)
 {
     setFileToSend(argv[1],atoi(argv[2]));
diff --git a/applications/cfg.h b/applications/cfg.h
index 5883204..85ebbc7 100644
--- a/applications/cfg.h
+++ b/applications/cfg.h
@@ -42,5 +42,5 @@ long get_val(const char *k);
 int set_val(const char *k, long v);
 
 int setFileToSend(const char *f, int v);
-int getFilesToSend(char (*kstr)[MAX_KEY_LEN], int *v);
+size_t getFilesToSend(char (*kstr)[MAX_KEY_LEN], int *v);
 int clearFileToSend(const char *k);
diff --git a/applications/_main.c b/applications/core.c
similarity index 80%
rename from applications/_main.c
rename to applications/core.c
index eacc69f..96c8402 100644
--- a/applications/_main.c
+++ b/applications/core.c
@@ -11,7 +11,7 @@
 
 #include <rtthread.h>
 
-#define LOG_TAG "main_scha"
+#define LOG_TAG "core"
 #define LOG_LVL LOG_LVL_DBG
 #include <ulog.h>
 #include <board.h>
@@ -34,7 +34,7 @@ static struct rt_event chkSta; //发送条件，含两部分，1-超时或文件
 rt_sem_t TTReady= RT_NULL;//天通具备发送状态后 rt_sem_release(TTReady);
 rt_sem_t cfgUpdate = RT_NULL;
 rt_sem_t shuntDownTT = RT_NULL;
-
+rt_sem_t okTosend = RT_NULL;
 
 //void TTisReady(void)
 //{
@@ -48,7 +48,8 @@ SYS_CFG scfg={
         .minTTPeriCnt=5,
         .minTTsinal=5,
         .timeout=5,
-        .maxSizePerFile=1024
+        .maxSizePerFile=1024,
+//        .openWindowTime[]={0x02, 0x0F, 0x03, 0x1E, 0x08, 0x0F, 0x09, 0x1E}
 };
 
 
@@ -61,6 +62,7 @@ static void updatecfg(void)
 //因为不知原因，采用事件集独立更新配置出错，无精力深查
 //独立响应单个参数更新事件，程序上更复杂也没特别必要
 //现采用事件通知、统一全部重新加载
+//    memcpy(scfg.openWindowTime,
     while(1)
     {
         if(rt_sem_take(cfgUpdate, RT_WAITING_FOREVER) == RT_EOK)
@@ -71,6 +73,12 @@ static void updatecfg(void)
             scfg.minTTsinal = get_cfg("minTTsinal");
             scfg.timeout = get_cfg("timeout");
             scfg.maxSizePerFile = get_cfg("maxSizePerFile");
+
+            char str[20];
+            get_cfgs("openWindowTime",str);
+            size_t len = str2Byte(str, 3, 10, scfg.openWindowTime);
+//LOG_HEX("win",16,scfg.openWindowTime,8);
+            updateAlarm(scfg.openWindowTime, len);
         }
         LOG_D("cfg updated.");
     }
@@ -79,13 +87,27 @@ static void updatecfg(void)
 
 void sysSemInit()
 {
-//    TTReady = rt_sem_create("TTisReady", 0, RT_IPC_FLAG_PRIO);
+    okTosend = rt_sem_create("okTosend", 0, RT_IPC_FLAG_PRIO);
     cfgUpdate = rt_sem_create("cfgUpdate", 0, RT_IPC_FLAG_PRIO);
     shuntDownTT = rt_sem_create("shuntDNTT", 0, RT_IPC_FLAG_PRIO);
     rt_event_init(&chkSta, "chkSta", RT_IPC_FLAG_PRIO);
     rt_sem_release(cfgUpdate);        //上电更新值
+
     updatecfg();
 
+    /* 创建 serial 线程 */
+//        rt_thread_t thread = rt_thread_create("updatecfg", updatecfg, RT_NULL, 1024 * 1, 27, 10);
+//        /* 创建成功则启动线程 */
+//        if (thread != RT_NULL)
+//        {
+//            rt_thread_startup(thread);
+//        }
+//        else
+//        {
+//            LOG_E("thread 'updatecfg' create failure.");
+//            return;
+//        }
+
 //    LOG_D("sysSemInit DONE.");
 }
 
@@ -158,25 +180,35 @@ static void upSendFile_thread_entry(void *parameter)
 
     static rt_uint8_t d[BUFFER_ROW][200] = { };
     static rt_uint8_t s[BUFFER_ROW] = { };
-    LOG_D("%s---%d",f->fname,f->index);
+    if (getFileSize(f->fname) > scfg.maxSizePerFile+200) {
+        LOG_W("file '%s' is too large to send.",f->fname);
+        clearFileToSend(f->fname);
+        rt_sem_release(okTosend);
+        return;
+    }
+    LOG_D("ready to send '%s---%d'",f->fname,f->index);
     rt_uint8_t len = pack_File(f->fname, 0, d, s);
 //    for (size_t i = 0; i < len; i++) {
 //        LOG_HEX("rst",16,d[i],s[i]);
 //    }
 //    list_thread();
-    if (len)
+    if (len)//部分demo数据体积>>1k
     {
         LOG_D("%d pack(s) to send", f->index ? 1 : len);
-        for (size_t var = 0; var < len; var++)
+        for (rt_uint8_t var = 0; var < len; var++)
         {
             if (!f->index || (var+1) == f->index)
             { //index=0 全发，或者仅发index
                 if (sendMsg(d[var], s[var]) == RT_EOK) {
                     LOG_D("send pack[%d] done.",var+1);
                 };
+                rt_thread_mdelay(1000);
             }
         }
         LOG_I("upSendFile done.");
+        clearFileToSend(f->fname);
+//        list_thread();
+        rt_sem_release(okTosend);
     }
 }
 
@@ -194,7 +226,7 @@ void upSendFile(const char *f, int index)
     info.index = index;
 
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("upSendFile", upSendFile_thread_entry, (void *) &info, 1024 * 2, 27, 10);
+    rt_thread_t thread = rt_thread_create("SendFile", upSendFile_thread_entry, (void *) &info, 1024 * 3, 27, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {
@@ -220,21 +252,35 @@ void d_upSendFile(int argc, char **argv)
  */
 void getAndSendFile()
 {
-    int index[MAX_KEY_LEN];
-    char f[30][MAX_KEY_LEN];
-    size_t cnt = getFilesToSend(f, index);
-
-    LOG_I("%d files to be send");
-
-    for (size_t i = cnt-1; i > 0; i--)
+    static int index[MAX_KEY_LEN];
+    static char f[10][MAX_KEY_LEN];
+    int cnt = getFilesToSend(f, index);
+    if(cnt)
     {
-        upSendFile(f[i],index[i]);
+        LOG_I("ready to send files.[%d]",cnt);
+    }
+    else {
+        LOG_W("no files waiting to be sent.");
+        return;
+    }
+
+    rt_sem_release(okTosend);
+    while(cnt)
+    {
+        for (int i = cnt-1; i > -1; i--)
+        {
+            if (rt_sem_take(okTosend, RT_WAITING_FOREVER) == RT_EOK) {
+                rt_thread_mdelay(1000);
+                upSendFile(f[i],index[i]);
+            }
+        }
+        cnt = getFilesToSend(f, index);
     }
 }
 
 static void chkAndSendFile_thread_entry()
 {
-    while (1 && isTTon())
+    while (1)
     {
 //        int e;
         LOG_I("等待文件就绪（或定时%d分钟超时）",scfg.sendInterval);
@@ -242,6 +288,7 @@ static void chkAndSendFile_thread_entry()
         RT_WAITING_FOREVER, RT_NULL) == RT_EOK) //条件1满足
         {
             LOG_I("等待TT就绪");
+            initTT();
         }
 
         for (size_t var = 0; var < scfg.maxTTRetryCnt; var++) //轮询尝试
@@ -249,7 +296,7 @@ static void chkAndSendFile_thread_entry()
             LOG_I("第%d/%d次尝试。", var + 1,scfg.maxTTRetryCnt);
             int rst = rt_event_recv(&chkSta, TT_IS_OK, RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, rt_tick_from_millisecond(scfg.maxTTWaitTime*60*1000),
                     RT_NULL);
-//            rst = rt_sem_take(TTReady, rt_tick_from_millisecond(maxTTWaitTime * 60 * 1000));
+            //            rst = rt_sem_take(TTReady, rt_tick_from_millisecond(maxTTWaitTime * 60 * 1000));
             if (rst == RT_EOK) //条件2满足
             {
                 LOG_I("TT准备就绪");
@@ -259,23 +306,12 @@ static void chkAndSendFile_thread_entry()
             else if (rst == -RT_ETIMEOUT)//超时则重试
             {
                 LOG_W("第%d次尝试中TT准备失败。", var + 1);
-//                pwTT_thread_entry("0");
                 rt_thread_mdelay(1000);
-//                checkTT();
-//                continue;
+                if ((var+1) == scfg.maxTTRetryCnt) {
+                    LOG_E("TT准备失败");
+                }
             }
         }
-        LOG_E("TT失败");
-
-//continue;
-//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
-//        upSendFile();
-
-//        LOG_I("----------------------------");
-
     }
 }
 
@@ -286,7 +322,7 @@ static void chkAndSendFile_thread_entry()
 void chkAndSendFile()
 {
     /* 创建 serial 线程 */
-    rt_thread_t thread = rt_thread_create("chk&send", chkAndSendFile_thread_entry, RT_NULL, 1024 * 5, 24, 10);
+    rt_thread_t thread = rt_thread_create("chk&send", chkAndSendFile_thread_entry, RT_NULL, 1024 * 2, 19, 10);
     /* 创建成功则启动线程 */
     if (thread != RT_NULL)
     {
@@ -298,7 +334,7 @@ void chkAndSendFile()
         return;
     }
 }
-//INIT_COMPONENT_EXPORT(smsg);
+INIT_APP_EXPORT(chkAndSendFile);
 
 static rt_timer_t tmrToPNTT=RT_NULL;
 static int isInWindow=0;//winow 关闭时复位
@@ -388,7 +424,7 @@ void initTT_thread_entry()
                 LOG_D("TCP is ready.");
                 tcpRecMQ();        //开启tcp接收线程
                 recTT();
-                chkAndSendFile();
+//                chkAndSendFile();
             }
         }
 
@@ -456,7 +492,7 @@ void deInitTT()
 
 #define FUNC_DEMO
 #ifdef FUNC_DEMO //测试时导出命令到控制台
-MSH_CMD_EXPORT(d_upSta,FILE_IS_OK);
+MSH_CMD_EXPORT_ALIAS(d_upSta,ttisok,TT_IS_OK);
 MSH_CMD_EXPORT(fileIsReady,fileIsReady);
 MSH_CMD_EXPORT(chkAndSendFile, chkAndSendFile);
 MSH_CMD_EXPORT(upSendFile, upSendFile);
diff --git a/applications/func/func.c b/applications/func/func.c
index 3b88089..b9d5d0e 100644
--- a/applications/func/func.c
+++ b/applications/func/func.c
@@ -315,8 +315,16 @@ extern void updateAlarm(uint8_t *t, size_t len);
 void setCommWindow(uint8_t *t, size_t len)
 {
     LOG_I("FUNC = setCommWindow");
+
+
+//not working here
+//    char tmpstr[20];
+//    bytes2str(t,len, 10, ",", tmpstr);
+//    set_cfgs("openWindowTime",tmpstr);
+
     updateAlarm(t,len);
-    LOG_D("更新开窗时间完成。");
+//    LOG_D("updated new CommWindow zone");
+
 }
 /**
  * 手动控制开窗
@@ -427,19 +435,15 @@ int reportDepth(uint8_t *din,size_t len)
 }
 //天通指令类型：0x70 0x01
 /**
- * 更新系统各项工作参数
+ * 从数组更新系统各项工作参数
   * @param cfg 参数数组
   * @param len 数组长度
   */
-void updateSysCfg(uint8_t *cfg, size_t len)
+void updateAllSysCfg(uint8_t *cfg, size_t len)
 {
     LOG_I("FUNC = update SYSCFG");
     SYS_CFG ts;
     memcpy(&scfg,cfg,len);
-//    LOG_D("--%d",scfg.maxSizePerFile);
-//    LOG_HEX("--",16,scfg.openWindowTime,8);
-//    return;
-//    scfg = (SYS_CFG)tmp;
     /**
      *
     uint8_t sendInterval;
@@ -505,7 +509,7 @@ void reportSysCfg()
 
 //    LOG_HEX("scfg",16,&scfg,size);
 //    LOG_HEX("cfg",16,rst,p+1);
-//    updateSysCfg(rst+8, rst[7]);
+    updateAllSysCfg(rst+8, rst[7]);
 }
 
 //3.2.8定时自报位置信息
@@ -795,6 +799,11 @@ void ttRunCMD(uint8_t *din, size_t len)
         break;
     case _CFG_COMM_WINDOW:
         setCommWindow(din+8,din[7]);//只支持两组开窗，开窗时间为小时、分钟，UTC+0
+
+        char tmpstr[20];
+        bytes2str(din+8,din[7], 10, ",", tmpstr);
+        set_cfgs("openWindowTime",tmpstr);
+
         break;
     case _CMD_OPEN_WINDOW:
         openWindow(din[7]?((din[8] << 8) + din[9]):0);//两字节开窗时间
@@ -810,7 +819,7 @@ void ttRunCMD(uint8_t *din, size_t len)
         break;
     case _CFG_UPDATE_CFG:
         if (din[7]) {//数据长度不为0则为覆写参数
-            updateSysCfg(din+8, din[7]);
+            updateAllSysCfg(din+8, din[7]);
         }
         else {//数据长度为0则为请求参数
             reportSysCfg();
@@ -894,13 +903,13 @@ void parse3SData(uint8_t *din, size_t count)
     {
         ttRunCMD(din,count);
     }
-    if (din[2] == ADDR_3S)//给3S的指令，需要再加工，返回数据可能也需要再加工
+    else if (din[2] == ADDR_3S)//给3S的指令，需要再加工，返回数据可能也需要再加工
     {
         //
 
         formatAndSendTo3S(din,count);
     }
-    if (din[2] == ADDR_ANJI)
+    else if (din[2] == ADDR_ANJI)
     {
         //可能需要对回传信息再加工，如查询深度需要加入位置坐标
         //或是缓存任务数据
@@ -912,6 +921,7 @@ void parse3SData(uint8_t *din, size_t count)
             reportDepth(din, count);
             break;
         default:
+            LOG_I("pass-through raw data.");
             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);
@@ -923,7 +933,10 @@ void parse3SData(uint8_t *din, size_t count)
         }
 //    upSend(din, count);
     }
-    LOG_W("无法解析的目标地址");
+    else {
+        LOG_W("无法解析的目标地址");
+    }
+
 }
 
 void chkACK(uint8_t *msg, size_t size)
diff --git a/applications/ttTR.c b/applications/ttTR.c
index 8cb87fe..913c802 100644
--- a/applications/ttTR.c
+++ b/applications/ttTR.c
@@ -284,6 +284,7 @@ int sendMsg(const rt_uint8_t *msg, size_t len)
         };
 
 #endif
+        return RT_EOK;
         //已发送数据存入log文件
     char str[400];
     bytes2str(msg, len, 16, " ", str);
diff --git a/applications/ttmsg/ttmsg.c b/applications/ttmsg/ttmsg.c
index f656009..a236687 100644
--- a/applications/ttmsg/ttmsg.c
+++ b/applications/ttmsg/ttmsg.c
@@ -124,7 +124,7 @@ static size_t getID(const char *str, rt_uint8_t *out)
     }
 //    LOG_HEX("file ID",16,tmp,len);
     char idstr[30];
-    LOG_I("msg id:%s",bytes2str(tmp, len, 16, "_", idstr));
+    LOG_I("msg id:%s",bytes2str(tmp, len, 10, "_", idstr));
     memcpy(out, tmp, len);
     return len;
 }
diff --git a/applications/uart_3S.c b/applications/uart_3S.c
index e0b4d48..1e55a28 100644
--- a/applications/uart_3S.c
+++ b/applications/uart_3S.c
@@ -80,7 +80,7 @@ static void serial_thread_entry(void *parameter)
 //    struct rx_msg msg;
     rt_err_t result;
     rt_uint32_t rx_length=0;//单次收到的数据长度
-    static char rx_buffer[RT_SERIAL_RB_BUFSZ + 1];
+    static char rx_buffer[RT_SERIAL_RB_BUFSZ/4 + 1];
 
     while (1)
     {