new: Increase oscilloscope time scale up to 1s/div.

src/lib/oscilloscope.cc

@@ -39,7 +39,7 @@ COscilloscope::COscilloscope() {
     triggerlv = 2.5;
     chpin[0] = 0;
     chpin[1] = 1;
-    toffset = 250;
+    soffset = 250;
     run = 1;
 
     fp = 0;
@@ -84,26 +84,46 @@ void COscilloscope::SetSample(void) {
         databuffer[fp][0][is] = -pins[0] + ((1.0 * rand() / RAND_MAX) - 0.5) * 0.1;
         databuffer[fp][1][is] = -pins[1] + ((1.0 * rand() / RAND_MAX) - 0.5) * 0.1;
         is++;
-        if (is >= NPOINTS)  // buffer full
+
+        if ((tscale > 30) && is) {
+            databuffer[!fp][0][is - 1] = databuffer[fp][0][is - 1];
+            databuffer[!fp][1][is - 1] = databuffer[fp][1][is - 1];
+
+            ch[0] = &databuffer[!fp][0][0];
+            ch[1] = &databuffer[!fp][1][0];
+            update = is;  // Request redraw screen
+
+            if (is >= WMAX) {
+                t = 0;
+                fp = !fp;  // togle fp
+                is = 0;
+            }
+        } else if (is >= NPOINTS)  // buffer full
         {
             int checked;
             WindowCmd(PW_MAIN, "togglebutton7", PWA_TOGGLEBGETCHECK, NULL, &checked);
             if (tr && checked) {
                 WindowCmd(PW_MAIN, "togglebutton6", PWA_TOGGLEBSETCHECK, "1");
             }
-            is = 0;
             tr = 0;
             t = 0;
-            ch[0] = &databuffer[fp][0][toffset];
-            ch[1] = &databuffer[fp][1][toffset];
-            fp = !fp;    // togle fp
-            update = 1;  // Request redraw screen
+            if (tscale > 30) {
+                ch[0] = &databuffer[fp][0][0];
+                ch[1] = &databuffer[fp][1][0];
+                update = is;  // Request redraw screen
+            } else {
+                ch[0] = &databuffer[fp][0][soffset];
+                ch[1] = &databuffer[fp][1][soffset];
+                update = is - soffset + 1;  // Request redraw screen
+            }
+            fp = !fp;  // togle fp
+            is = 0;
         }
     }
     t += Dt;
 
     // trigger
-    if (usetrigger) {
+    if ((usetrigger) && (tscale <= 30)) {
         if ((!tr) && (is >= NPOINTS / 2)) {
             if ((pins_[tch] < triggerlv) && (pins[tch] >= triggerlv)) {
                 tr = 1;
@@ -378,9 +398,8 @@ void COscilloscope::ReadPreferences(char* name, char* value) {
         for (int i = 0; i < 5; i++) {
             SetMeasure(i, measures[i]);
         }
+        SetBaseTimer();
     }
-
-    SetBaseTimer();
 }
 
 std::vector<std::string> COscilloscope::WritePreferencesList(void) {
@@ -388,7 +407,7 @@ std::vector<std::string> COscilloscope::WritePreferencesList(void) {
     std::string line;
 
     int created = 0;
-    Oscilloscope.WindowCmd(PW_MAIN, NULL, PWA_WINDOWHASCREATED, NULL, &created);
+    WindowCmd(PW_MAIN, NULL, PWA_WINDOWHASCREATED, NULL, &created);
 
     if (created != 1) {
         return list;
@@ -592,7 +611,7 @@ void COscilloscope::SetBaseTimer(void) {
     if (pboard->CpuInitialized() == 0)
         return;
 
-    SetDT(1.0 / pboard->MGetInstClockFreq());
+    Dt = 1.0 / pboard->MGetInstClockFreq();
 
     int chp[2];
 
@@ -641,23 +660,27 @@ void COscilloscope::SetBaseTimer(void) {
     } else
         WindowCmd(PW_MAIN, "combo2", PWA_COMBOSETTEXT, "2");
 
-    float tscale;
     WindowCmd(PW_MAIN, "spind5", PWA_SPINDGETVALUE, NULL, &tscale);
 
-    SetRT((tscale * 1e-3 * 10) / WMAX);
-
-    if ((GetRT() / GetDT()) < 1.0) {
-        xz = GetDT() / GetRT();
-    } else
-        xz = 1.0;
-
     WindowCmd(PW_MAIN, "spind6", PWA_SPINDSETMIN, std::to_string(-5 * tscale).c_str());
     WindowCmd(PW_MAIN, "spind6", PWA_SPINDSETMAX, std::to_string(5 * tscale).c_str());
-
-    float toffset;
     WindowCmd(PW_MAIN, "spind6", PWA_SPINDGETVALUE, NULL, &toffset);
 
-    Oscilloscope.SetTimeOffset((WMAX / 2) - (((WMAX / 2) * toffset) / (5 * tscale)));
+    SetTimeScaleAndOffset(tscale, toffset);
+}
+
+void COscilloscope::SetTimeScaleAndOffset(float tscale_, float toffset_) {
+    tscale = tscale_;
+    toffset = toffset_;
+
+    Rt = (tscale * 1e-3 * 10) / WMAX;
+
+    if ((Rt / Dt) < 1.0) {
+        xz = Dt / Rt;
+    } else
+        xz = 1.0;
+
+    soffset = (WMAX / 2) - (((WMAX / 2) * toffset) / (5 * tscale));
 }
 
 int COscilloscope::WindowCmd(const int id, const char* ControlName, const PICSimLabWindowAction action,

src/lib/oscilloscope.h

@@ -85,8 +85,9 @@ public:
 
     void SetChannelPin(int ch, int pin) { chpin[ch] = pin; };
 
-    int GetTimeOffset(void) { return toffset; };
-    void SetTimeOffset(int to) { toffset = to; };
+    int GetSampleOffset(void) { return soffset; };
+
+    void SetTimeScaleAndOffset(float tscale_, float toffset_);
 
     int GetRun(void) { return run; };
     void SetRun(int r) { run = r; };
@@ -95,13 +96,8 @@ public:
 
     void SetVMax(float vm) { vmax = vm; };
 
-    void SetRT(double rt) { Rt = rt; };
     double GetRT(void) { return Rt; };
-
-    void SetDT(double dt) { Dt = dt; };
     double GetDT(void) { return Dt; };
-
-    void Setxz(double xz_) { xz = xz_; };
     double Getxz(void) { return xz; };
 
     void Reset(void);
@@ -127,7 +123,7 @@ private:
     int usetrigger;
     double triggerlv;
     int tch;  // trigger channel
-    int toffset;
+    int soffset;
     int chpin[2];
     double databuffer[2][2][NPOINTS];  // flip buffers + 2 channels + 700 points
     int fp;                            // actual flip buffer
@@ -142,6 +138,8 @@ private:
     int measures[5];
     float vmax;
     double xz;
+    float tscale;
+    float toffset;
 };
 
 extern COscilloscope Oscilloscope;

src/picsimlab4.cc

@@ -119,6 +119,10 @@ void CPWindow4::DrawScreen(void) {
     }
     draw1.Canvas.SetLineWidth(1);
 
+    // draw update cursor
+    draw1.Canvas.SetFgColor(250, 250, 50);
+    draw1.Canvas.Line(update_pos, 0, update_pos, HMAX);
+
     // draw trigger level
     if (Oscilloscope.GetUseTrigger()) {
         if (combo1.GetText().compare("1") == 0)
@@ -139,9 +143,8 @@ void CPWindow4::DrawScreen(void) {
     }
 
     // draw toffset level
-
     draw1.Canvas.SetFgColor(255, 255, 0);
-    nivel[2] = ((WMAX - Oscilloscope.GetTimeOffset()) * xz + xz) - ((NPOINTS * (xz - 1.0)) / 4.0);
+    nivel[2] = ((WMAX - Oscilloscope.GetSampleOffset()) * xz + xz) - ((NPOINTS * (xz - 1.0)) / 4.0);
     pts[0].y = 1;
     pts[0].x = nivel[2] - 3;
     pts[1].y = 1 + 3;
@@ -291,20 +294,38 @@ void CPWindow4::draw1_EvMouseButtonClick(CControl* control, unsigned int button,
 }
 
 void CPWindow4::spind5_EvOnChangeSpinDouble(CControl* control) {
-    // spind5.SetMin ((Dt*WMAX)/10e-3);
+    spind6.SetMin(-5 * spind5.GetValue());
+    spind6.SetMax(5 * spind5.GetValue());
 
-    Oscilloscope.SetRT((spind5.GetValue() * 1e-3 * 10) / WMAX);
+    float inc = spind5.GetValue() / 100.0;
 
-    if ((Oscilloscope.GetRT() / Oscilloscope.GetDT()) < 1.0) {
-        Oscilloscope.Setxz(Oscilloscope.GetDT() / Oscilloscope.GetRT());
-    } else
-        Oscilloscope.Setxz(1.0);
+    if (inc < 0.001000) {
+        spind5.SetInc(0.001000);
+    } else if (inc >= 1) {
+        spind5.SetInc(5);
+    } else if (inc >= 0.1) {
+        spind5.SetInc(0.5);
+    } else {
+        spind5.SetInc(0.005);
+    }
 
-    spind6.SetMin(-5 * spind5.GetValue());
-    spind6.SetMax(5 * spind5.GetValue());
+    Oscilloscope.SetTimeScaleAndOffset(spind5.GetValue(), spind6.GetValue());
+}
+
+void CPWindow4::spind6_EvOnChangeSpinDouble(CControl* control) {
+    float inc = fabs(spind6.GetValue() / 100.0);
+
+    if (inc < 0.001000) {
+        spind6.SetInc(0.001000);
+    } else if (inc >= 1) {
+        spind6.SetInc(5);
+    } else if (inc >= 0.1) {
+        spind6.SetInc(0.5);
+    } else {
+        spind6.SetInc(0.005);
+    }
 
-    spind6_EvOnChangeSpinDouble(this);
-    // printf("Dt=%e Rt=%e  Rt/Dt=%f   xz=%f\n",Dt,Rt,Rt/Dt,xz);
+    Oscilloscope.SetTimeScaleAndOffset(spind5.GetValue(), spind6.GetValue());
 }
 
 void CPWindow4::togglebutton5_EvOnToggleButton(CControl* control) {
@@ -318,7 +339,8 @@ void CPWindow4::spind7_EvOnChangeSpinDouble(CControl* control) {
 void CPWindow4::timer1_EvOnTime(CControl* control) {
     static int count = 0;
 
-    if (Oscilloscope.GetUpdate()) {
+    update_pos = Oscilloscope.GetUpdate();
+    if (update_pos) {
         Oscilloscope.SetUpdate(0);
 
         count++;
@@ -337,6 +359,7 @@ void CPWindow4::timer1_EvOnTime(CControl* control) {
             }
         }
         DrawScreen();
+        update_pos = 0;
 #ifndef _WIN_
         Draw();
 #endif
@@ -375,10 +398,6 @@ void CPWindow4::_EvOnHide(CControl* control) {
     }
 }
 
-void CPWindow4::spind6_EvOnChangeSpinDouble(CControl* control) {
-    Oscilloscope.SetTimeOffset((WMAX / 2) - (((WMAX / 2) * spind6.GetValue()) / (5 * spind5.GetValue())));
-}
-
 // autoset
 
 void CPWindow4::button3_EvMouseButtonClick(CControl* control, unsigned int button, unsigned int x, unsigned int y,

src/picsimlab4.h

@@ -125,6 +125,7 @@ public:
 
 private:
     CButton* ctrl;
+    int update_pos;
 };
 
 extern CPWindow4 Window4;

src/picsimlab4_d.cc

@@ -126,7 +126,7 @@ CPWindow4::CPWindow4(void) {
     spind5.SetPopupMenu(NULL);
     spind5.SetValue(10.000000);
     spind5.SetMin(0.001000);
-    spind5.SetMax(200.000000);
+    spind5.SetMax(1000.000000);
     spind5.SetInc(0.001000);
     spind5.SetDigits(3);
     spind5.EvOnChangeSpinDouble = EVONCHANGESPINDOUBLE & CPWindow4::spind5_EvOnChangeSpinDouble;
@@ -694,4 +694,6 @@ CPWindow4::CPWindow4(void) {
     // lxrad automatic generated block end, don't edit above!
     button1.SetColor(255, 0, 0);
     button2.SetColor(0, 255, 0);
+
+    update_pos = 0;
 }