Siphamandla Simelane / Mbed 2 deprecated slider_diatonic_SP

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Dependencies:   SLCD TSI mbed

Fork of slider_diatonic_v1 by Vishal Bharam

Files at this revision

API Documentation at this revision

Revision 4:d59d946649b8, committed 2015-02-22

Comitter:
vbharam
Date:
Sun Feb 22 07:57:45 2015 +0000
Parent:
3:f68e9cdfaf2d
Child:
5:c3564f9501ca
Commit message:
Added button interrupt to change from one octave to other

Changed in this revision

slider_diatonic_v1.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/slider_diatonic_v1.cpp	Wed Feb 18 15:27:17 2015 +0000
+++ b/slider_diatonic_v1.cpp	Sun Feb 22 07:57:45 2015 +0000
@@ -9,7 +9,7 @@
 #define DATATIME    100 //milli seccnds
 //LCD messages
 
-
+#define TONEARRAY 
 
 // Operating parameters
 #define SIDETONE    700.0   
@@ -26,11 +26,12 @@
 Serial pc(USBTX, USBRX);
 
 float diatonicScale[NUMTONES] = {246.94, 261.63,293.66,329.63,349.23,392.00,440.00,493.88,523.25,587.33};
+float diatonicScaleOctave[NUMTONES] = {659.25, 698.46, 783.99, 880.00, 987.77, 1046.50, 1174.66, 1318.51, 1396.91, 1567.98 };
 SLCD slcd; //define LCD display
 
 TSISensor tsiScaling; // Capacitive sensor/slider
 
-
+InterruptIn mybutton(PTC3);  //push botton with internal pullup
 PwmOut led(LED_RED);
 DigitalOut outPin(PTC9); //J1-16
 PwmOut soundOut(PTA13);
@@ -41,8 +42,15 @@
 float tonePeriod;
 float toneFreq = SIDETONE;
 
+// Int used to switch between different octave 
+int relayState = CHANNELOFF;
 
 
+void pressed() // button intterupt
+{
+    relayState = !relayState;
+}
+
 void LCDMessNoDwell(char *lMess){
         slcd.Home();
         slcd.clear();
@@ -58,7 +66,10 @@
 */
     scaleIndex = (int)(NUMTONES * scaling);
     if (scaleIndex != oldScaleIndex) {
-        toneFreq = diatonicScale[scaleIndex];
+        if (relayState == CHANNELOFF)
+            toneFreq = diatonicScale[scaleIndex];
+        else 
+            toneFreq = diatonicScaleOctave[scaleIndex];
         tonePeriod = 1.0/toneFreq;  
         soundOut.period(tonePeriod); // adjusting period
         soundOut.write(TONEON); // there is a setup time for both period and DF
@@ -74,6 +85,9 @@
     LCDMessNoDwell(lcdData);
     return;
 }
+
+
+
 void lightAdjust( float scaling) { // Control brightness of LED
     float tempDutyFactor;
     
@@ -84,13 +98,14 @@
 
 int main(){
     int tempInt;
-    float tempValue;
-    
+    float tempValue;    
     tonePeriod = 1.0/toneFreq; 
     soundOut.period(tonePeriod);
     led.period(tonePeriod);
     led.write(CHANNELOFF);
     outPin.write(CHANNELOFF);
+    // set up interrrupts to be used later for taps
+    mybutton.fall(&pressed);
     
     tempInt = (int)toneFreq;
     sprintf (lcdData,"%4d",tempInt);