diff --git a/app/app.uvoptx b/app/app.uvoptx
index 427b1cc..cdafab2 100644
--- a/app/app.uvoptx
+++ b/app/app.uvoptx
@@ -73,7 +73,7 @@
         <LExpSel>0</LExpSel>
       </OPTXL>
       <OPTFL>
-        <tvExp>1</tvExp>
+        <tvExp>0</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
         <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
diff --git a/app/src/device_ctrl_service.c b/app/src/device_ctrl_service.c
index 9b092a7..884a975 100644
--- a/app/src/device_ctrl_service.c
+++ b/app/src/device_ctrl_service.c
@@ -56,8 +56,8 @@ static void zble_event_listener(zble_event_t* ble_event) {  //
 /*******************************************************************************
  *                                  事件处理                                   *
  *******************************************************************************/
-static bool m_ispoweron            = false;
-//static bool m_drop_state_triggered = false;
+static bool m_ispoweron = false;
+// static bool m_drop_state_triggered = false;
 static void poweroff() {
   if (!m_ispoweron) return;
   BoardBeepCtrl_unload();
@@ -139,12 +139,12 @@ static void prvf_change_to_sample_state() {  //
 
 static void app_event_listener(void* p_event_data, uint16_t event_size) {  //
   app_event_t* event = (app_event_t*)p_event_data;
-  //static bool  inited;
-  // if (!inited) {
-  //   nrf_gpio_cfg_input(BUTTON_PIN, NRF_GPIO_PIN_NOPULL);
-  //   inited = true;
-  // }
-  // ZLOGI("button %d", nrf_gpio_pin_read(BUTTON_PIN));
+  // static bool  inited;
+  //  if (!inited) {
+  //    nrf_gpio_cfg_input(BUTTON_PIN, NRF_GPIO_PIN_NOPULL);
+  //    inited = true;
+  //  }
+  //  ZLOGI("button %d", nrf_gpio_pin_read(BUTTON_PIN));
 
   /*******************************************************************************
    *                              状态无关事件处理                               *
@@ -167,10 +167,15 @@ static void app_event_listener(void* p_event_data, uint16_t event_size) {  //
 
   //
   else if (m_device_state == kdevice_state_ready) {
+    /*******************************************************************************
+     *                                  永不休眠                                   *
+     *******************************************************************************/
+#if 0
     if (!zble_module_is_connected() && DeviceCtrl_cur_state_haspassed_ms() > APP_AUTO_SLEEP_TIMEOUT_MS) {
       ZLOGI("auto sleep");
       prvf_change_to_standby_state();
     }
+#endif
 
     if (event->eventType == kevent_start_sample_cmd_event) {
       ZLOGI("start sample");
diff --git a/app/src/heart_wave_sample_service.c b/app/src/heart_wave_sample_service.c
index a3784d8..e0a5d6c 100644
--- a/app/src/heart_wave_sample_service.c
+++ b/app/src/heart_wave_sample_service.c
@@ -403,7 +403,7 @@ void hwss_init(void) {
    */
   nrfx_err_t          err;
   nrfx_timer_config_t timer_cfg = {
-      .frequency          = NRF_TIMER_FREQ_125kHz,
+      .frequency          = NRF_TIMER_FREQ_250kHz,
       .mode               = NRF_TIMER_MODE_TIMER,
       .bit_width          = NRF_TIMER_BIT_WIDTH_24,
       .p_context          = NULL,
@@ -417,6 +417,7 @@ void hwss_init(void) {
 
   ZASSERT(SAMPLE_RATE == 400);
   uint32_t timer_ticks = nrfx_timer_ms_to_ticks(&m_timer, 5);  // 200HZ
+  ZLOGI("timer_ticks:%d\n", timer_ticks);
   ZASSERT(timer_ticks % 2 == 0);                               //
   timer_ticks = timer_ticks / 2;                               // 400HZ
   nrfx_timer_extended_compare(&m_timer, NRF_TIMER_CC_CHANNEL0, timer_ticks, NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK, true);