main.cpp

00001 #include "mbed.h"
00002 #include "MMA8451Q.h"
00003 #include "USBMIDI.h"
00004 #include "TSISensor.h"
00005 
00006 #define MMA8451_I2C_ADDRESS (0x1d<<1)
00007 
00008 #define C1  0,187  
00009 #define D1  0.250 
00010 #define E1  0.312 
00011 #define F1  0.375      
00012 #define G1  0.437 
00013 #define A1  0.5        
00014 #define B1  0.562 
00015 #define C2  0.625  
00016 #define D2  0.687      
00017 #define E2  0.750   
00018 #define F2  0.812     
00019 #define G2  0.875  
00020 #define A2  0.937       
00021 #define B2  1      
00022 #define C3  1.062       
00023 #define D3  1.125  
00024 #define E3  1,187       
00025 #define F3  1.250      
00026 #define G3  1.312       
00027 #define A3  1.375  
00028 #define B3  1.437       
00029 #define C4  1.5    
00030 #define D4  1.562       
00031 #define E4  1.625  
00032 #define F4  1.687 
00033 #define G4  1.749 
00034 #define A4  1.811 
00035 #define B4  1.873 
00036 
00037 //1.935
00038 
00039 
00040 
00041 #define NC1 48
00042 #define ND1 50
00043 #define NE1 52
00044 #define NF1 53
00045 #define NG1 55
00046 #define NA1 57
00047 #define NB1 59
00048 #define NC2 60
00049 #define ND2 62
00050 #define NE2 64
00051 #define NF2 65
00052 #define NG2 67
00053 #define NA2 69
00054 #define NB2 71
00055 #define NC3 72
00056 #define ND3 74
00057 #define NE3 76
00058 #define NF3 77
00059 #define NG3 79
00060 #define NA3 81
00061 #define NB3 83
00062 #define NC4 84
00063 #define ND4 86
00064 #define NE4 88
00065 #define NF4 89
00066 #define NG4 91
00067 #define NA4 93
00068 #define NB4 95
00069 
00070 Serial pc(USBTX,USBRX);
00071 USBMIDI midi;
00072 TSISensor tsi;
00073 
00074  
00075 void show_message(MIDIMessage msg) {
00076     switch (msg.type()) {
00077         case MIDIMessage::NoteOnType:
00078             printf("NoteOn key:%d, velocity: %d, channel: %d\n", msg.key(), msg.velocity(), msg.channel());
00079             break;
00080         case MIDIMessage::NoteOffType:
00081             printf("NoteOff key:%d, velocity: %d, channel: %d\n", msg.key(), msg.velocity(), msg.channel());
00082             break;
00083         case MIDIMessage::ControlChangeType:    
00084             printf("ControlChange controller: %d, data: %d\n", msg.controller(), msg.value());
00085             break;
00086         case MIDIMessage::PitchWheelType:
00087             printf("PitchWheel channel: %d, pitch: %d\n", msg.channel(), msg.pitch());
00088             break;
00089         default:
00090             printf("Another message\n");
00091     }    
00092 }
00093  
00094 
00095  
00096 int main() { 
00097 
00098     int note=48, n=48;
00099     float notechng;
00100     int pitch;
00101     int modulation;
00102     float m;
00103     
00104     MMA8451Q acc(PTE25, PTE24, MMA8451_I2C_ADDRESS);
00105              
00106     midi.attach(show_message);         // call back for messages received 
00107      
00108     while (1) { 
00109 #if 0      
00110         /* TEST CODE */
00111         /* test pitch - commented in in - endif*/
00112         midi.write(MIDIMessage::NoteOn(57));
00113         for(int c=0; c<127; c= c+1){  
00114             
00115             midi.write(MIDIMessage::ControlChange(1, c));
00116             //midi.write(MIDIMessage::PitchWheel(c));
00117             pc.printf("Pitch: %d \n", c);         
00118         }   
00119         midi.write(MIDIMessage::NoteOff(57));          
00120             wait(0.5);         
00121 #endif
00122 #if 1
00123         /* read note */
00124         notechng = 1 - acc.getAccX();
00125 
00126         /* get modulatio */
00127         m = ((1 + acc.getAccY()) * 63); 
00128         modulation = int(m); 
00129         
00130         /* get pitch */
00131         pitch = (int(tsi.readPercentage() * 8192) - 8192);
00132         
00133         if(notechng > C1) note= NC1;
00134         if(notechng > D1) note= ND1;
00135         if(notechng > E1) note= NE1;
00136         if(notechng > F1) note= NF1;
00137         if(notechng > G1) note= NG1;
00138         if(notechng > A1) note= NA1;
00139         if(notechng > B1) note= NB1;
00140         if(notechng > C2) note= NC2;
00141         if(notechng > D2) note= ND2;
00142         if(notechng > E2) note= NE2;
00143         if(notechng > F2) note= NF2;
00144         if(notechng > G2) note= NG2;
00145         if(notechng > A2) note= NA2;
00146         if(notechng > B2) note= NB2;  
00147         if(notechng > C3) note= NC3;
00148         if(notechng > D3) note= ND3;
00149 //        if(notechng > E3) note= NE3;
00150         if(notechng > F3) note= NF3;
00151         if(notechng > G3) note= NG3;
00152         if(notechng > A3) note= NA3;
00153         if(notechng > B3) note= NB3;
00154         if(notechng > C4) note= NC4;
00155         if(notechng > D4) note= ND4;
00156         if(notechng > E4) note= NE4;
00157         if(notechng > F4) note= NF4;
00158         if(notechng > G4) note= NG4;
00159         if(notechng > A4) note= NA4;
00160         if(notechng > B4) note= NB4; 
00161         
00162         pc.printf("note: %d \n", note);          
00163         pc.printf("notechng: %f \n", notechng);
00164 
00165         if (note != n) {
00166             midi.write(MIDIMessage::NoteOff(n));
00167             n=note; 
00168             midi.write(MIDIMessage::NoteOn(n));       
00169         }
00170         
00171         midi.write(MIDIMessage::ControlChange(1, modulation));
00172         midi.write(MIDIMessage::PitchWheel(pitch));
00173         
00174         wait(0.1);
00175 #endif      
00176     }
00177 }