diff --git a/mainwindow.cpp b/mainwindow.cpp
index 1bd4438..9d4acdd 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -605,8 +605,11 @@ void MainWindow::constructUI() {
    *                             外部触发页面初始化                              *
    *******************************************************************************/
 
+
   ui->TriInX_SrcSelect_Val_1->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::DIFF_INPUT).toString()));
   ui->TriInX_SrcSelect_Val_1->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::OPTOCOUPLER_INPUT).toString()));
+  ui->TriInX_SrcSelect_Val_1->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::INTERNAL_CLK).toString()));
+
   ui->TriInX_Mode_Val_1->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRIGGER_MODE).toString()));
   ui->TriInX_Mode_Val_1->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRANSPARENT_MODE).toString()));
   ui->TriInX_TriggerModeTriggerEdge_Val_1->addItem(QString::fromStdString(TriggerEdge(TriggerEdge::RISING).toString()));
@@ -614,6 +617,8 @@ void MainWindow::constructUI() {
 
   ui->TriInX_SrcSelect_Val_2->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::DIFF_INPUT).toString()));
   ui->TriInX_SrcSelect_Val_2->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::OPTOCOUPLER_INPUT).toString()));
+  ui->TriInX_SrcSelect_Val_2->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::INTERNAL_CLK).toString()));
+
   ui->TriInX_Mode_Val_2->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRIGGER_MODE).toString()));
   ui->TriInX_Mode_Val_2->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRANSPARENT_MODE).toString()));
   ui->TriInX_TriggerModeTriggerEdge_Val_2->addItem(QString::fromStdString(TriggerEdge(TriggerEdge::RISING).toString()));
@@ -621,6 +626,8 @@ void MainWindow::constructUI() {
 
   ui->TriInX_SrcSelect_Val_3->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::DIFF_INPUT).toString()));
   ui->TriInX_SrcSelect_Val_3->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::OPTOCOUPLER_INPUT).toString()));
+  ui->TriInX_SrcSelect_Val_3->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::INTERNAL_CLK).toString()));
+
   ui->TriInX_Mode_Val_3->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRIGGER_MODE).toString()));
   ui->TriInX_Mode_Val_3->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRANSPARENT_MODE).toString()));
   ui->TriInX_TriggerModeTriggerEdge_Val_3->addItem(QString::fromStdString(TriggerEdge(TriggerEdge::RISING).toString()));
@@ -628,6 +635,8 @@ void MainWindow::constructUI() {
 
   ui->TriInX_SrcSelect_Val_4->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::DIFF_INPUT).toString()));
   ui->TriInX_SrcSelect_Val_4->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::OPTOCOUPLER_INPUT).toString()));
+  ui->TriInX_SrcSelect_Val_4->addItem(QString::fromStdString(ExtTriggerSrcType(ExtTriggerSrcType::INTERNAL_CLK).toString()));
+
   ui->TriInX_Mode_Val_4->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRIGGER_MODE).toString()));
   ui->TriInX_Mode_Val_4->addItem(QString::fromStdString(SigProcessMode(SigProcessMode::TRANSPARENT_MODE).toString()));
   ui->TriInX_TriggerModeTriggerEdge_Val_4->addItem(QString::fromStdString(TriggerEdge(TriggerEdge::RISING).toString()));
diff --git a/mainwindow.ui b/mainwindow.ui
index dfc1b3d..4a94508 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -17,7 +17,7 @@
    </sizepolicy>
   </property>
   <property name="windowTitle">
-   <string>相机光源和时序控制器</string>
+   <string>相机光源和时序控制器V15</string>
   </property>
   <property name="styleSheet">
    <string notr="true">/*
@@ -1226,7 +1226,7 @@ QGroupBox:title {
              </size>
             </property>
             <property name="currentIndex">
-             <number>0</number>
+             <number>4</number>
             </property>
             <property name="tabBarAutoHide">
              <bool>true</bool>
@@ -5277,6 +5277,8 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;        2.提交配置后，自动启动内部触发&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;        &lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;FPGA-FIRMWARE-VERSION&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:14px; font-weight:600; color:#ff0000;&quot;&gt;    V10:&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:14px; font-weight:600; color:#ff0000;&quot;&gt;        1.修复当寄存器变化频率的时候，SPI读取数据错误的BUG&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;    V9:&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;        1.修复倍频器2+倍频信号错误的BUG&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Consolas','Courier New','monospace'; font-size:11pt; font-weight:600; color:#ff0000;&quot;&gt;    V7:&lt;/span&gt;&lt;/p&gt;
diff --git a/src/camera_light_src_timing_controller/clst_controler.cpp b/src/camera_light_src_timing_controller/clst_controler.cpp
index 19993db..ef7833e 100644
--- a/src/camera_light_src_timing_controller/clst_controler.cpp
+++ b/src/camera_light_src_timing_controller/clst_controler.cpp
@@ -424,6 +424,10 @@ zaf_error_code_t CLSTControler::readSigPeriodUs(uint32_t reg, float &us) {
   uint32_t freq_cnt = 0;
   DO_CMD(reg_read(reg, freq_cnt, 30));
   us = freq_cnt * 10 / 1000.0;
+  if (us > 1100000) {
+    us = 0;
+  }
+
   return kaf_ec_success;
 }
 
diff --git a/src/camera_light_src_timing_controller/clst_controler_sig_type.cpp b/src/camera_light_src_timing_controller/clst_controler_sig_type.cpp
index 7b2b738..c65fadf 100644
--- a/src/camera_light_src_timing_controller/clst_controler_sig_type.cpp
+++ b/src/camera_light_src_timing_controller/clst_controler_sig_type.cpp
@@ -6,6 +6,7 @@ using namespace clst;
 map<string, ExtTriggerSrcType::EnumType_t> ExtTriggerSrcType::emap = {
     {"光耦输入", OPTOCOUPLER_INPUT},  //
     {"差分输入", DIFF_INPUT},                //
+    {"内部时钟", INTERNAL_CLK},                //
 };
 
 map<string, TriggerEdge::EnumType_t> TriggerEdge::emap = {
diff --git a/src/camera_light_src_timing_controller/clst_controler_sig_type.hpp b/src/camera_light_src_timing_controller/clst_controler_sig_type.hpp
index 333c2ed..490f30b 100644
--- a/src/camera_light_src_timing_controller/clst_controler_sig_type.hpp
+++ b/src/camera_light_src_timing_controller/clst_controler_sig_type.hpp
@@ -23,6 +23,7 @@ class ExtTriggerSrcType {
   typedef enum {
     OPTOCOUPLER_INPUT = 0,  // 光耦输入
     DIFF_INPUT        = 1,  // 差分输入
+    INTERNAL_CLK      = 2,  // 内部触发源
   } EnumType_t;
 
  private:
diff --git a/src/version.h b/src/version.h
index 248e814..3c0ec64 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,4 +1,4 @@
 #pragma once
 
-#define VERSION 14
+#define VERSION 15
 #define MAUFACTURER "iflytop"
\ No newline at end of file