Diff: main.cpp

Revision:

0:bf576ce38f5e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 09 19:16:49 2015 +0000
@@ -0,0 +1,54 @@
+#include "mbed.h"
+ 
+AnalogOut Aout(p18);
+AnalogIn Ain(p20);
+//AnalogIn Ain1(p19);
+//AnalogIn Ain2(p20);
+ 
+DigitalIn sw1(p7);
+DigitalIn sw2(p8);
+DigitalIn sw3(p9);
+DigitalIn sw4(p10);
+ 
+int main() {
+    float A,T,f,Ts;//A=amplitude, T=period, f=frequency, Ts= sampling time
+    const float PI=3.141592;
+    int SinNumPoints=100;
+    
+    //with only one potenciometer
+    while(1) {
+        if (sw1==1){//mode1: amplitude control
+            A=Ain;
+            f=50000;
+            T=1/f;
+            Ts= T/SinNumPoints;
+            for (int i=0;i<SinNumPoints;i++){
+                Aout=0.5+A/2*sin(2*PI*f*i*Ts);
+                wait(Ts);
+        }else if(sw2==1){// mode2: period control
+            A=1;
+            f=50000*Ain;
+            T=1/f;
+            Ts= T/SinNumPoints;
+            for (int i=0;i<SinNumPoints;i++){
+                Aout=0.5+A/2*sin(2*PI*f*i*Ts);
+                wait(Ts);
+        }
+            /* with 2 potenciometer to control simuntaneously both parameter, amplitude and frequency
+            
+            while(1){
+                A=Ain1;
+                f=50000*Ain2;(20ms)
+                T=1/f;
+                Ts=T/SinNumPoints;
+                for (int i=0;i<SinNumPoints;i++){
+                    Aout=0.5+A/2*sin(2*PI*f*i*Ts);
+                    wait(Ts);
+                }
+            }
+            
+            */
+    }
+ 
+    }
+}