diff --git a/DSView/pv/sigsession.cpp b/DSView/pv/sigsession.cpp
index c4e34f2d..0138374e 100644
--- a/DSView/pv/sigsession.cpp
+++ b/DSView/pv/sigsession.cpp
@@ -455,15 +455,14 @@ namespace pv
         int run_dex = 0;
         clear_all_decode_task(run_dex);
         
-        _view_data->clear();
-
         // If switch the data buffer    
         if (_view_data != _capture_data){
             _capture_data->clear();
             _capture_data = _view_data;
         }
+        _view_data->clear();
 
-        init_signals();
+        update_view();
 
         // update setting
         if (_device_agent.is_file())
@@ -743,8 +742,9 @@ namespace pv
                 break;
             } 
         }
+ 
+        clear_signals();
 
-        RELEASE_ARRAY(_signals);
         std::vector<view::Signal *>().swap(_signals);
         _signals = sigs;
 
@@ -837,8 +837,8 @@ namespace pv
         }
 
         if (!sigs.empty())
-        {
-            RELEASE_ARRAY(_signals);
+        { 
+            clear_signals();
             std::vector<view::Signal *>().swap(_signals);
             _signals = sigs;
         }
@@ -2048,4 +2048,27 @@ namespace pv
         }
     }
 
+    void SigSession::clear_signals()
+    {
+        for (int i=0; i< (int)_signals.size(); i++)
+        {
+            auto *p = _signals[i];
+            p->sig_released(p);
+
+            DESTROY_QT_LATER(p);
+        }
+        _signals.clear();
+    }
+
+    view::Signal* SigSession::get_signal_by_index(int index)
+    {
+        for (int i=0; i< (int)_signals.size(); i++)
+        {
+            auto *p = _signals[i];
+            if (p->get_index() == index)
+                return p;
+        }
+        return NULL;
+    }
+
 } // namespace pv
diff --git a/DSView/pv/sigsession.h b/DSView/pv/sigsession.h
index 2a62d51b..d5128382 100644
--- a/DSView/pv/sigsession.h
+++ b/DSView/pv/sigsession.h
@@ -381,6 +381,10 @@ public:
         return _view_data == _capture_data;
     }
 
+    inline void update_view(){
+        _callback->data_updated();
+    }
+
     void auto_end();
     bool have_hardware_data();
     struct ds_device_base_info* get_device_list(int &out_count, int &actived_index);
@@ -391,6 +395,7 @@ public:
     void set_decoder_row_label(int index, QString label);
 
     view::DecodeTrace* get_decoder_trace(int index);
+    view::Signal* get_signal_by_index(int index);
 
 private:
     void set_cur_samplelimits(uint64_t samplelimits);
@@ -463,6 +468,8 @@ private:
     void repeat_capture_wait_timeout();
     void repeat_wait_prog_timeout();
     void realtime_refresh_timeout();
+
+    void clear_signals();
  
 private:
     mutable std::mutex      _sampling_mutex;
diff --git a/DSView/pv/view/dsosignal.cpp b/DSView/pv/view/dsosignal.cpp
index b24885da..867a92d9 100644
--- a/DSView/pv/view/dsosignal.cpp
+++ b/DSView/pv/view/dsosignal.cpp
@@ -79,6 +79,7 @@ DsoSignal::DsoSignal(data::DsoSnapshot *data,
     }
 
     _signal_type = DSO_SIGNAL;
+    _vDial = NULL;
 
     GVariant *gvar_list, *gvar_list_vdivs;
 
@@ -106,8 +107,19 @@ DsoSignal::DsoSignal(data::DsoSnapshot *data,
     load_settings();
 }
 
+DsoSignal::DsoSignal(const DsoSignal &o)
+:Signal(NULL)
+{
+}
+
+DsoSignal::DsoSignal(DsoSignal &o)
+:Signal(NULL)
+{
+}
+
 DsoSignal::~DsoSignal()
 {
+    DESTROY_OBJECT(_vDial);
 }
 
 void DsoSignal::set_scale(int height)
@@ -1495,6 +1507,15 @@ double DsoSignal::get_voltage(uint64_t index)
 
 QString DsoSignal::get_voltage(double v, int p, bool scaled)
 {
+   // if (_vDial == NULL)
+     //   return "";
+
+    this->_hover_en = this->_hover_en;
+
+    if (_vDial == NULL){
+        assert(false);
+    } 
+
     if (scaled)
         v = v * _vDial->get_value() * _vDial->get_factor() * DS_CONF_DSO_VDIVS / get_view_rect().height();
     else
diff --git a/DSView/pv/view/dsosignal.h b/DSView/pv/view/dsosignal.h
index 9d516dfa..2aedb72d 100644
--- a/DSView/pv/view/dsosignal.h
+++ b/DSView/pv/view/dsosignal.h
@@ -81,6 +81,9 @@ private:
     static const uint16_t MS_RectMargin = 10;
     static const uint16_t MS_RectHeight = 25;
 
+    DsoSignal(const DsoSignal &o);
+    DsoSignal(DsoSignal &o);
+
 public:
     DsoSignal(pv::data::DsoSnapshot *data,
               sr_channel *probe);
diff --git a/DSView/pv/view/signal.h b/DSView/pv/view/signal.h
index 607754cc..ee0ba95a 100644
--- a/DSView/pv/view/signal.h
+++ b/DSView/pv/view/signal.h
@@ -60,6 +60,9 @@ class Signal : public Trace
 {
     Q_OBJECT
 
+signals:
+    void sig_released(void *o);
+
 protected:
     Signal(sr_channel * const probe);
 
@@ -68,9 +71,7 @@ protected:
      */
     Signal(const Signal &s, sr_channel * const probe);
 
-public:
-  //  virtual pv::data::SignalData* data() = 0;
-
+public: 
     /**
      * Returns true if the trace is visible and enabled.
      */
diff --git a/DSView/pv/view/viewport.cpp b/DSView/pv/view/viewport.cpp
index 9f44028b..2a58a8de 100644
--- a/DSView/pv/view/viewport.cpp
+++ b/DSView/pv/view/viewport.cpp
@@ -607,10 +607,12 @@ void Viewport::mousePressEvent(QMouseEvent *event)
         if (_action_type == NO_ACTION && _view.xcursors_shown()) {
             auto i = _view.get_xcursorList().begin();
             const QRect xrect = _view.get_view_rect();
+
             while (i != _view.get_xcursorList().end()) {
                 const double cursorX  = xrect.left() + (*i)->value(XCursor::XCur_Y)*xrect.width();
                 const double cursorY0 = xrect.top() + (*i)->value(XCursor::XCur_X0)*xrect.height();
                 const double cursorY1 = xrect.top() + (*i)->value(XCursor::XCur_X1)*xrect.height();
+                
                 if ((*i)->get_close_rect(xrect).contains(_view.hover_point())) {
                     _view.del_xcursor(*i);
                     if (_view.get_xcursorList().empty())
diff --git a/DSView/pv/view/xcursor.cpp b/DSView/pv/view/xcursor.cpp
index 016bdccb..e4d6ea09 100644
--- a/DSView/pv/view/xcursor.cpp
+++ b/DSView/pv/view/xcursor.cpp
@@ -43,6 +43,7 @@ XCursor::XCursor(View &view, QColor &colour,
 	_colour(colour)
 {
     _dsoSig = NULL;
+    _sig_index = -1;
     
     for(auto s : _view.session().get_signals()) {        
         if (s->signal_type() == DSO_SIGNAL){
@@ -53,18 +54,29 @@ XCursor::XCursor(View &view, QColor &colour,
             }
         }
     }
+
+    if (_dsoSig != NULL){
+        connect(_dsoSig, SIGNAL(sig_released(void*)), this, SLOT(on_signal_deleted(void*)));
+        _sig_index = _dsoSig->get_index();
+    }
 }
 
 XCursor::XCursor(const XCursor &x) :
 	QObject(),
-    _view(x._view),
-    _dsoSig(x._dsoSig),
-    _yvalue(x._yvalue),
-    _value0(x._value0),
-    _value1(x._value1),
-    _grabbed(XCur_None),
-    _colour(x._colour)
+    _view(x._view)
 {
+    _dsoSig = x._dsoSig;
+    _yvalue = x._yvalue;
+    _value0 = x._value0;
+    _value1 = x._value1;
+    _grabbed = XCur_None;
+    _colour = x._colour;
+    _sig_index = -1;
+
+    if (_dsoSig != NULL){
+        connect(_dsoSig, SIGNAL(sig_released(void*)), this, SLOT(on_signal_deleted(void*)));
+        _sig_index = _dsoSig->get_index();
+    }
 }
 
 QColor XCursor::colour()
@@ -84,15 +96,29 @@ DsoSignal* XCursor::channel()
 {
     return _dsoSig;
 }
+
 void XCursor::set_channel(DsoSignal *sig)
 {
     _dsoSig = sig;
+
+    if (_dsoSig != NULL){
+        connect(_dsoSig, SIGNAL(sig_released(void*)), this, SLOT(on_signal_deleted(void*)));
+        _sig_index = _dsoSig->get_index();
+    }
+}
+
+void XCursor::on_signal_deleted(void *o)
+{
+    if (o == _dsoSig){
+        _dsoSig = NULL;
+    }   
 }
 
 enum XCursor::XCur_type XCursor::grabbed()
 {
     return _grabbed;
 }
+
 void XCursor::set_grabbed(XCur_type type, bool grabbed)
 {
     if (_grabbed == XCur_None && grabbed)
@@ -100,6 +126,7 @@ void XCursor::set_grabbed(XCur_type type, bool grabbed)
     else if (_grabbed == type && !grabbed)
         _grabbed = XCur_None;
 }
+
 void XCursor::rel_grabbed()
 {
     _grabbed = XCur_None;
@@ -129,7 +156,15 @@ void XCursor::set_value(XCur_type type, double value)
 }
 
 void XCursor::paint(QPainter &p, const QRect &rect, XCur_type highlight,  int order)
-{ 
+{   
+    // Attach the channel
+    if (_dsoSig == NULL && _sig_index != -1){
+        auto sig = _view.session().get_signal_by_index(_sig_index);
+        if (sig != NULL){
+            _dsoSig = dynamic_cast<DsoSignal*>(sig);
+        }
+    }
+
     const int arrow = 3;
     const int x = rect.left() + _yvalue * rect.width();
     const int y0 = rect.top() + _value0 * rect.height();
@@ -216,10 +251,14 @@ void XCursor::paint_label(QPainter &p, const QRect &rect)
 
     QRect close = get_close_rect(rect);
     p.setPen(Qt::NoPen);
+
     if (close.contains(QPoint(_view.hover_point().x(), _view.hover_point().y())))
         p.setBrush(View::Red);
-    else
+    else if (_dsoSig != NULL)
         p.setBrush(_dsoSig->get_colour());
+    else
+        p.setBrush(View::Blue);
+
     p.drawRect(close);
     p.setPen(Qt::black);
     p.drawLine(close.left() + 2, close.top() + 2, close.right() - 2, close.bottom() - 2);
diff --git a/DSView/pv/view/xcursor.h b/DSView/pv/view/xcursor.h
index 7a95bf1c..96f2b892 100644
--- a/DSView/pv/view/xcursor.h
+++ b/DSView/pv/view/xcursor.h
@@ -124,9 +124,13 @@ public:
 signals:
     void value_changed();
 
+private slots:
+    void on_signal_deleted(void *o);
+
 protected:
     View        &_view;
     DsoSignal   *_dsoSig;
+    int         _sig_index;
 
     double _yvalue;
     double _value0;
diff --git a/DSView/res/DSCope1.def.dsc b/DSView/res/DSCope1.def.dsc
new file mode 100644
index 00000000..3fcb5e4c
--- /dev/null
+++ b/DSView/res/DSCope1.def.dsc
@@ -0,0 +1,74 @@
+{
+    "Device": "DSCope",
+    "DeviceMode": 1,
+    "Horizontal trigger position": "50",
+    "Language": 31,
+    "Operation Mode": "Normal",
+    "Time base": "10000",
+    "Trigger channel": "0",
+    "Trigger hold off": "0",
+    "Trigger margin": "8",
+    "Trigger slope": "0",
+    "Trigger source": "0",
+    "Version": 2,
+    "channel": [
+        {
+            "colour": "#eeb211",
+            "coupling": 0,
+            "enabled": true,
+            "index": 0,
+            "name": "0",
+            "trigValue": 0.40157480314960631,
+            "type": 10001,
+            "vdiv": 1000,
+            "vfactor": 1,
+            "zeroPos": 0.40157480314960631
+        },
+        {
+            "colour": "#009925",
+            "coupling": 0,
+            "enabled": true,
+            "index": 1,
+            "name": "1",
+            "trigValue": 0.59842519685039375,
+            "type": 10001,
+            "vdiv": 1000,
+            "vfactor": 1,
+            "zeroPos": 0.59842519685039375
+        }
+    ],
+    "decoder": [
+    ],
+    "measure": [
+        {
+            "index": 0,
+            "site": 0,
+            "type": 1
+        },
+        {
+            "index": 0,
+            "site": 1,
+            "type": 17
+        },
+        {
+            "index": 0,
+            "site": 2,
+            "type": 18
+        },
+        {
+            "index": 1,
+            "site": 5,
+            "type": 1
+        },
+        {
+            "index": 1,
+            "site": 6,
+            "type": 17
+        },
+        {
+            "index": 1,
+            "site": 7,
+            "type": 18
+        }
+    ]
+}
diff --git a/DSView/res/DSCope2.def.dsc b/DSView/res/DSCope2.def.dsc
new file mode 100644
index 00000000..48be72cf
--- /dev/null
+++ b/DSView/res/DSCope2.def.dsc
@@ -0,0 +1,48 @@
+{
+    "Device": "DSCope",
+    "DeviceMode": 2,
+    "Horizontal trigger position": "0",
+    "Language": 31,
+    "Operation Mode": "Normal",
+    "Sample count": "10000000",
+    "Sample rate": "10000000",
+    "Time base": "10000",
+    "Trigger channel": "0",
+    "Trigger hold off": "0",
+    "Trigger margin": "8",
+    "Trigger slope": "0",
+    "Trigger source": "0",
+    "Version": 2,
+    "channel": [
+        {
+            "colour": "#eeb211",
+            "coupling": 0,
+            "enabled": true,
+            "index": 0,
+            "mapMax": 5,
+            "mapMin": -5,
+            "mapUnit": "V",
+            "name": "0",
+            "type": 10002,
+            "vdiv": 1000,
+            "vfactor": 1,            
+            "zeroPos": 0.5
+        },
+        {
+            "colour": "#009925",
+            "coupling": 0,
+            "enabled": true,
+            "index": 1,
+            "mapMax": 5,
+            "mapMin": -5,
+            "mapUnit": "V",
+            "name": "1",
+            "type": 10002,
+            "vdiv": 1000,
+            "vfactor": 1,            
+            "zeroPos": 0.5
+        }
+    ],
+    "decoder": [
+    ]
+}
diff --git a/DSView/res/DSLogic0.def.dsc b/DSView/res/DSLogic0.def.dsc
new file mode 100644
index 00000000..71acd77b
--- /dev/null
+++ b/DSView/res/DSLogic0.def.dsc
@@ -0,0 +1,279 @@
+{
+    "Channel Mode": "Use 16 Channels (Max 20MHz)",
+    "Device": "DSLogic",
+    "DeviceMode": 0,
+    "Enable RLE Compress": 0,
+    "Filter Targets": "None",
+    "Horizontal trigger position": "0",
+    "Language": 31,
+    "Max Height": "1X",
+    "Operation Mode": "Stream Mode",
+    "Sample count": "1000000",
+    "Sample rate": "1000000",
+    "Stop Options": "Upload captured data",
+    "Threshold Level": 1,
+    "Trigger channel": "0",
+    "Trigger hold off": "0",
+    "Trigger margin": "8",
+    "Trigger slope": "0",
+    "Trigger source": "0",
+    "Using Clock Negedge": 0,
+    "Using External Clock": 0,
+    "Version": 2,
+    "channel": [
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 0,
+            "name": "0",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 1,
+            "name": "1",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 2,
+            "name": "2",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 3,
+            "name": "3",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 4,
+            "name": "4",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 5,
+            "name": "5",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 6,
+            "name": "6",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 7,
+            "name": "7",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 8,
+            "name": "8",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 9,
+            "name": "9",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 10,
+            "name": "10",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 11,
+            "name": "11",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 12,
+            "name": "12",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 13,
+            "name": "13",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 14,
+            "name": "14",
+            "strigger": 0,
+            "type": 10000
+        },
+        {
+            "colour": "default",
+            "enabled": true,
+            "index": 15,
+            "name": "15",
+            "strigger": 0,
+            "type": 10000
+        }
+    ],
+    "decoder": [
+    ],
+    "trigger": {
+        "advTriggerMode": false,
+        "serialTriggerBits": 0,
+        "serialTriggerChannel": 0,
+        "serialTriggerClock": "X X X X X X X X X X X X X X X X",
+        "serialTriggerData": "X X X X X X X X X X X X X X X X",
+        "serialTriggerStart": "X X X X X X X X X X X X X X X X",
+        "serialTriggerStop": "X X X X X X X X X X X X X X X X",
+        "stageTriggerContiguous0": false,
+        "stageTriggerContiguous1": false,
+        "stageTriggerContiguous10": false,
+        "stageTriggerContiguous11": false,
+        "stageTriggerContiguous12": false,
+        "stageTriggerContiguous13": false,
+        "stageTriggerContiguous14": false,
+        "stageTriggerContiguous15": false,
+        "stageTriggerContiguous2": false,
+        "stageTriggerContiguous3": false,
+        "stageTriggerContiguous4": false,
+        "stageTriggerContiguous5": false,
+        "stageTriggerContiguous6": false,
+        "stageTriggerContiguous7": false,
+        "stageTriggerContiguous8": false,
+        "stageTriggerContiguous9": false,
+        "stageTriggerCount0": 1,
+        "stageTriggerCount1": 1,
+        "stageTriggerCount10": 1,
+        "stageTriggerCount11": 1,
+        "stageTriggerCount12": 1,
+        "stageTriggerCount13": 1,
+        "stageTriggerCount14": 1,
+        "stageTriggerCount15": 1,
+        "stageTriggerCount2": 1,
+        "stageTriggerCount3": 1,
+        "stageTriggerCount4": 1,
+        "stageTriggerCount5": 1,
+        "stageTriggerCount6": 1,
+        "stageTriggerCount7": 1,
+        "stageTriggerCount8": 1,
+        "stageTriggerCount9": 1,
+        "stageTriggerInv00": 0,
+        "stageTriggerInv01": 0,
+        "stageTriggerInv010": 0,
+        "stageTriggerInv011": 0,
+        "stageTriggerInv012": 0,
+        "stageTriggerInv013": 0,
+        "stageTriggerInv014": 0,
+        "stageTriggerInv015": 0,
+        "stageTriggerInv02": 0,
+        "stageTriggerInv03": 0,
+        "stageTriggerInv04": 0,
+        "stageTriggerInv05": 0,
+        "stageTriggerInv06": 0,
+        "stageTriggerInv07": 0,
+        "stageTriggerInv08": 0,
+        "stageTriggerInv09": 0,
+        "stageTriggerInv10": 0,
+        "stageTriggerInv11": 0,
+        "stageTriggerInv110": 0,
+        "stageTriggerInv111": 0,
+        "stageTriggerInv112": 0,
+        "stageTriggerInv113": 0,
+        "stageTriggerInv114": 0,
+        "stageTriggerInv115": 0,
+        "stageTriggerInv12": 0,
+        "stageTriggerInv13": 0,
+        "stageTriggerInv14": 0,
+        "stageTriggerInv15": 0,
+        "stageTriggerInv16": 0,
+        "stageTriggerInv17": 0,
+        "stageTriggerInv18": 0,
+        "stageTriggerInv19": 0,
+        "stageTriggerLogic0": 1,
+        "stageTriggerLogic1": 1,
+        "stageTriggerLogic10": 1,
+        "stageTriggerLogic11": 1,
+        "stageTriggerLogic12": 1,
+        "stageTriggerLogic13": 1,
+        "stageTriggerLogic14": 1,
+        "stageTriggerLogic15": 1,
+        "stageTriggerLogic2": 1,
+        "stageTriggerLogic3": 1,
+        "stageTriggerLogic4": 1,
+        "stageTriggerLogic5": 1,
+        "stageTriggerLogic6": 1,
+        "stageTriggerLogic7": 1,
+        "stageTriggerLogic8": 1,
+        "stageTriggerLogic9": 1,
+        "stageTriggerValue00": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue01": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue010": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue011": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue012": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue013": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue014": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue015": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue02": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue03": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue04": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue05": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue06": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue07": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue08": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue09": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue10": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue11": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue110": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue111": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue112": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue113": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue114": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue115": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue12": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue13": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue14": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue15": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue16": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue17": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue18": "X X X X X X X X X X X X X X X X",
+        "stageTriggerValue19": "X X X X X X X X X X X X X X X X",
+        "triggerPos": 1,
+        "triggerStages": 0,
+        "triggerTab": 0
+    }
+}
diff --git a/DSView/res/DSLogic1.def.dsc b/DSView/res/DSLogic1.def.dsc
new file mode 100644
index 00000000..6e5fdc1a
--- /dev/null
+++ b/DSView/res/DSLogic1.def.dsc
@@ -0,0 +1,82 @@
+{
+    "Channel Mode": "Use Channels 0~1 (Max 200MHz)",
+    "Device": "DSLogic",
+    "DeviceMode": 1,
+    "Enable RLE Compress": 1,
+    "Filter Targets": "None",
+    "Horizontal trigger position": "50",
+    "Language": 31,
+    "Max Height": "1X",
+    "Operation Mode": "Stream Mode",
+    "Sample count": "1000000",
+    "Sample rate": "100000000",
+    "Stop Options": "Upload captured data",
+    "Threshold Level": "1.8/2.5/3.3V Level",
+    "Trigger hold off": "0",
+    "Trigger margin": "8",
+    "Trigger slope": "0",
+    "Trigger source": "0",
+    "Using Clock Negedge": 0,
+    "Using External Clock": 0,
+    "Version": 2,
+    "channel": [
+        {
+            "colour": "#eeb211",
+            "coupling": 0,
+            "enabled": true,
+            "index": 0,
+            "name": "0",
+            "trigValue": 0.40157480314960631,
+            "type": 10001,
+            "vdiv": 1000,
+            "vfactor": 1,
+            "zeroPos": 0.40157480314960631
+        },
+        {
+            "colour": "#009925",
+            "coupling": 0,
+            "enabled": true,
+            "index": 1,
+            "name": "1",
+            "trigValue": 0.59842519685039375,
+            "type": 10001,
+            "vdiv": 1000,
+            "vfactor": 1,
+            "zeroPos": 0.59842519685039375
+        }
+    ],
+    "decoder": [
+    ],
+    "measure": [
+        {
+            "index": 0,
+            "site": 0,
+            "type": 1
+        },
+        {
+            "index": 0,
+            "site": 1,
+            "type": 17
+        },
+        {
+            "index": 0,
+            "site": 2,
+            "type": 18
+        },
+        {
+            "index": 1,
+            "site": 5,
+            "type": 1
+        },
+        {
+            "index": 1,
+            "site": 6,
+            "type": 17
+        },
+        {
+            "index": 1,
+            "site": 7,
+            "type": 18
+        }
+    ]
+}
diff --git a/DSView/res/DSLogic2.def.dsc b/DSView/res/DSLogic2.def.dsc
new file mode 100644
index 00000000..672b2be3
--- /dev/null
+++ b/DSView/res/DSLogic2.def.dsc
@@ -0,0 +1,52 @@
+{
+    "Channel Mode": "Use Channels 0~1 (Max 10MHz)",
+    "Device": "DSLogic",
+    "DeviceMode": 2,
+    "Enable RLE Compress": 1,
+    "Filter Targets": "None",
+    "Horizontal trigger position": "0",
+    "Language": 31,
+    "Max Height": "1X",
+    "Operation Mode": "Stream Mode",
+    "Sample count": "1000000",
+    "Sample rate": "1000000",
+    "Stop Options": "Upload captured data",
+    "Threshold Level": "1.8/2.5/3.3V Level",
+    "Trigger hold off": "0",
+    "Trigger margin": "8",
+    "Trigger slope": "0",
+    "Trigger source": "0",
+    "Using Clock Negedge": 0,
+    "Using External Clock": 0,
+    "Version": 2,
+    "channel": [
+        {
+            "colour": "#eeb211",
+            "coupling": 0,
+            "enabled": true,
+            "index": 0,
+            "mapMax": 5,
+            "mapMin": -5,
+            "mapUnit": "V",
+            "name": "0",
+            "type": 10002,
+            "vdiv": 1000,
+            "zeroPos": 0.5
+        },
+        {
+            "colour": "#009925",
+            "coupling": 0,
+            "enabled": true,
+            "index": 1,
+            "mapMax": 5,
+            "mapMin": -5,
+            "mapUnit": "V",
+            "name": "1",
+            "type": 10002,
+            "vdiv": 1000,
+            "zeroPos": 0.5
+        }
+    ],
+    "decoder": [
+    ]
+}