Diff: Tone.h

Revision:

0:836cdf67dbdb

Child:

1:f17240b3e85e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Tone.h	Wed Mar 08 17:15:42 2017 +0000
@@ -0,0 +1,141 @@
+#ifndef TONE_H
+#define TONE_H
+
+#include "mbed.h"
+
+#define PI 3.14159265359
+
+class Tone {
+
+    public:
+    
+    // constructor/destructor
+    Tone(PinName dacPin);
+    ~Tone();
+    
+    // initialise the sine lookup table with number of notes
+    void init();
+    
+    // play single note of specific duration
+    void play(const float frequency,const float duration);
+    
+    // play array of notes and duration, must send length and beats per minute
+    void play_melody(int length,const int *notes,const int *durations,float bpm,bool repeat);
+     
+    private:
+    
+    AnalogOut *dac;
+    Ticker *ticker;
+    Timeout *timeout;
+    Timeout *note_timeout;
+
+    float *_sample_array;
+    const int *_notes;
+    const int *_durations;
+    
+    int _n;
+    int _melody_length;
+    volatile unsigned int _sample;
+    volatile unsigned int _note;
+    float _bpm;
+    bool _repeat;
+    
+    void ticker_isr();    
+    void timeout_isr();
+    void note_timeout_isr();  
+    void play_next_note();
+    
+};
+
+// Note definitions from Arduino.cc
+#define NOTE_B0  31
+#define NOTE_C1  33
+#define NOTE_CS1 35
+#define NOTE_D1  37
+#define NOTE_DS1 39
+#define NOTE_E1  41
+#define NOTE_F1  44
+#define NOTE_FS1 46
+#define NOTE_G1  49
+#define NOTE_GS1 52
+#define NOTE_A1  55
+#define NOTE_AS1 58
+#define NOTE_B1  62
+#define NOTE_C2  65
+#define NOTE_CS2 69
+#define NOTE_D2  73
+#define NOTE_DS2 78
+#define NOTE_E2  82
+#define NOTE_F2  87
+#define NOTE_FS2 93
+#define NOTE_G2  98
+#define NOTE_GS2 104
+#define NOTE_A2  110
+#define NOTE_AS2 117
+#define NOTE_B2  123
+#define NOTE_C3  131
+#define NOTE_CS3 139
+#define NOTE_D3  147
+#define NOTE_DS3 156
+#define NOTE_E3  165
+#define NOTE_F3  175
+#define NOTE_FS3 185
+#define NOTE_G3  196
+#define NOTE_GS3 208
+#define NOTE_A3  220
+#define NOTE_AS3 233
+#define NOTE_B3  247
+#define NOTE_C4  262
+#define NOTE_CS4 277
+#define NOTE_D4  294
+#define NOTE_DS4 311
+#define NOTE_E4  330
+#define NOTE_F4  349
+#define NOTE_FS4 370
+#define NOTE_G4  392
+#define NOTE_GS4 415
+#define NOTE_A4  440
+#define NOTE_AS4 466
+#define NOTE_B4  494
+#define NOTE_C5  523
+#define NOTE_CS5 554
+#define NOTE_D5  587
+#define NOTE_DS5 622
+#define NOTE_E5  659
+#define NOTE_F5  698
+#define NOTE_FS5 740
+#define NOTE_G5  784
+#define NOTE_GS5 831
+#define NOTE_A5  880
+#define NOTE_AS5 932
+#define NOTE_B5  988
+#define NOTE_C6  1047
+#define NOTE_CS6 1109
+#define NOTE_D6  1175
+#define NOTE_DS6 1245
+#define NOTE_E6  1319
+#define NOTE_F6  1397
+#define NOTE_FS6 1480
+#define NOTE_G6  1568
+#define NOTE_GS6 1661
+#define NOTE_A6  1760
+#define NOTE_AS6 1865
+#define NOTE_B6  1976
+#define NOTE_C7  2093
+#define NOTE_CS7 2217
+#define NOTE_D7  2349
+#define NOTE_DS7 2489
+#define NOTE_E7  2637
+#define NOTE_F7  2794
+#define NOTE_FS7 2960
+#define NOTE_G7  3136
+#define NOTE_GS7 3322
+#define NOTE_A7  3520
+#define NOTE_AS7 3729
+#define NOTE_B7  3951
+#define NOTE_C8  4186
+#define NOTE_CS8 4435
+#define NOTE_D8  4699
+#define NOTE_DS8 4978
+
+#endif
\ No newline at end of file