Revision 3:c8c3b755ef54, committed 2019-05-14

Comitter:

Lenschinki

Date:

Tue May 14 12:16:55 2019 +0000

Parent:

2:100244cef3d6

Commit message:

vomit

Changed in this revision

--- a/FuncGen.cpp	Thu Mar 17 13:45:13 2016 +0000
+++ b/FuncGen.cpp	Tue May 14 12:16:55 2019 +0000
@@ -1,5 +1,6 @@
 
 #include "FuncGen.h"
+#include "mbed.h"
 
 // Konstruktor
 SignedRampGen::SignedRampGen()
@@ -68,27 +69,57 @@
     val=0;
     _inc=_phase=0;
     SetPointsPerPeriod(10);
+    _thres = 0.5;
 }
 
 void RectGen::SetPointsPerPeriod(int aPoints)
 {
-    _inc = 1.0/aPoints;
+    _inc = 2.0/aPoints;
 }
 
 void RectGen::SetFrequ(float aFrequ)
 {
     SetPointsPerPeriod(1.0/aFrequ);
 }
+void RectGen::SetPulsWidth(float aPercent)
+{
+    _thres = aPercent;
+}
 
 void RectGen::CalcOneStep()
 {
     _phase += _inc;
     if( _phase>=1.0 )
         _phase = _phase - 1.0;
-    if( _phase>0.5 )
+    if( _phase>_thres )
         val = 1.0;
     else
         val = -1.0;
 }
 
+SinusGen::SinusGen()
+{
+    val = 0;
+    _inc = 1;
+    entry = 0;
+    for(int i = 0; i < 1000; i++)
+    {
+        sinWave[i] = sin(((3.1415*2)/1000)*i); 
+    }
+}       
 
+void SinusGen::SetFrequ(float aFrequ)
+{
+    int freq = 22000 * aFrequ;
+    _inc = 1000 * freq/22000;
+}
+
+void SinusGen::CalcOneStep()
+{
+    val = sinWave[(int)entry];
+    entry = entry + _inc;
+    if(entry > 1000)
+        entry = entry - 1000;
+}
+
+

--- a/FuncGen.h	Thu Mar 17 13:45:13 2016 +0000
+++ b/FuncGen.h	Tue May 14 12:16:55 2019 +0000
@@ -42,6 +42,22 @@
     void CalcOneStep();
 };
 
+class SinusGen
+{
+    public:
+        float val; // momentaner Ausgangswert
+    private:
+        float sinWave[1000];
+        float _inc;
+        float entry;
+    public:
+        SinusGen();
+        
+        void SetFrequ(float aFrequ);
+        
+        void CalcOneStep();        
+};
+
 
 class RectGen
 {
@@ -50,6 +66,7 @@
 private:
     float _inc;
     float _phase;
+    float _thres;
 public:
     RectGen();
 

--- a/FuncGenMain.cpp	Thu Mar 17 13:45:13 2016 +0000
+++ b/FuncGenMain.cpp	Tue May 14 12:16:55 2019 +0000
@@ -5,6 +5,7 @@
 
 SerialBLK pc(USBTX, USBRX);
 SvProtocol ua0(&pc);
+AnalogOut dacout(p18);
 
 // BusOut leds(LED1,LED2,LED3,LED4); Bertl14
 // M0-Board
@@ -12,33 +13,32 @@
 
 void CommandHandler();
 void ExecSignalChain();
+void output();
 
 RectGen fg1;
+SignedRampGen rg1;
+TriangleGen tg1;
+SinusGen sg1;
 
-float ampl1 = 1.0; //
+Ticker ticker;
+
+float ampl1 = 0.5; 
 float v1; // Wert nach dem Koeffizientenglied
+float v2;
+float v3;
+float v4;
+
+int mode = 1;
 
 int main(void)
 {
     pc.format(8,SerialBLK::None,1);
-    pc.baud(500000); // 115200
+    pc.baud(115200); // 115200
     leds = 9;
-    ua0.SvMessage("FuncGenMain"); // Meldung zum PC senden
-
-    Timer stw;
-    stw.start();
+    ua0.SvMessage("FuncGenMain"); // Meldung zum PC senden    
+    ticker.attach_us(&output,45);
     while(1) {
         CommandHandler();
-        if( (stw.read_ms()>10) ) { // 100Hz
-            // dieser Teil wird mit 10Hz aufgerufen
-            stw.reset();
-            ExecSignalChain();
-            if( ua0.acqON ) {
-                // nur wenn vom PC aus das Senden eingeschaltet wurde
-                // wird auch etwas gesendet
-                ua0.WriteSV(1, v1);
-            }
-        }
     }
     return 1;
 }
@@ -49,7 +49,28 @@
 void ExecSignalChain()
 {
     fg1.CalcOneStep();
-    v1 = ampl1 * fg1.val; // Koeffizientenglied rechnen
+    v1 = 0.5 + ampl1 * fg1.val; // Koeffizientenglied rechnen 
+    
+    rg1.CalcOneStep();
+    v2 = 0.5 + ampl1 * rg1.val;
+    
+    tg1.CalcOneStep();
+    v3 = 0.5 + ampl1 * tg1.val;
+    
+    sg1.CalcOneStep();
+    v4 = 0.5 + ampl1 * sg1.val;
+}
+void output()
+{
+    ExecSignalChain();
+    if(mode==1)
+        dacout = v1;
+    else if(mode==2)
+        dacout = v2;
+    else if(mode==3)
+        dacout = v3;
+    else
+        dacout = v4;
 }
 
 void CommandHandler()
@@ -67,13 +88,23 @@
     if( cmd==2 ) {
         float frequ = ua0.ReadF();
         fg1.SetFrequ(frequ);
+        rg1.SetFrequ(frequ);
+        tg1.SetFrequ(frequ);   
+        sg1.SetFrequ(frequ); 
         ua0.SvMessage("Set Frequ");
     }
-    // mit dem Command=3 die Amplitude verstellen
     if( cmd==3 ) {
-        ampl1 = ua0.ReadF();
-        ua0.SvMessage("Set Ampl");
+        int points = ua0.ReadI16();
+        fg1.SetPointsPerPeriod(points);
+        rg1.SetPointsPerPeriod(points);
+        tg1.SetPointsPerPeriod(points);   
+        ua0.SvMessage("Set Points");
+    }   
+    if( cmd ==4)
+    {
+        mode = ua0.ReadI16();
     }
+    
 }