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- #include <msp430g2231.h>
- #include <signal.h>
- typedef unsigned char byte;
- #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
- #define OCTAVE_OFFSET 0
- //I've changed here int to const int in order to use the flash
- const int notes[] = { 0, NOTE_C4, NOTE_CS4, NOTE_D4, NOTE_DS4, NOTE_E4, NOTE_F4,
- NOTE_FS4, NOTE_G4, NOTE_GS4, NOTE_A4, NOTE_AS4, NOTE_B4, NOTE_C5,
- NOTE_CS5, NOTE_D5, NOTE_DS5, NOTE_E5, NOTE_F5, NOTE_FS5, NOTE_G5,
- NOTE_GS5, NOTE_A5, NOTE_AS5, NOTE_B5, NOTE_C6, NOTE_CS6, NOTE_D6,
- NOTE_DS6, NOTE_E6, NOTE_F6, NOTE_FS6, NOTE_G6, NOTE_GS6, NOTE_A6,
- NOTE_AS6, NOTE_B6, NOTE_C7, NOTE_CS7, NOTE_D7, NOTE_DS7, NOTE_E7,
- NOTE_F7, NOTE_FS7, NOTE_G7, NOTE_GS7, NOTE_A7, NOTE_AS7, NOTE_B7 };
- //char *song = "The Simpsons:d=4,o=5,b=160:c.6,e6,f#6,8a6,g.6,e6,c6,8a,8f#,8f#,8f#,2g,8p,8p,8f#,8f#,8f#,8g,a#.,8c6,8c6,8c6,c6";
- //char *song = "Indiana:d=4,o=5,b=250:e,8p,8f,8g,8p,1c6,8p.,d,8p,8e,1f,p.,g,8p,8a,8b,8p,1f6,p,a,8p,8b,2c6,2d6,2e6,e,8p,8f,8g,8p,1c6,p,d6,8p,8e6,1f.6,g,8p,8g,e.6,8p,d6,8p,8g,e.6,8p,d6,8p,8g,f.6,8p,e6,8p,8d6,2c6";
- //char *song = "TakeOnMe:d=4,o=4,b=160:8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5,8f#5,8e5,8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5";
- //char *song = "Entertainer:d=4,o=5,b=140:8d,8d#,8e,c6,8e,c6,8e,2c.6,8c6,8d6,8d#6,8e6,8c6,8d6,e6,8b,d6,2c6,p,8d,8d#,8e,c6,8e,c6,8e,2c.6,8p,8a,8g,8f#,8a,8c6,e6,8d6,8c6,8a,2d6";
- //char *song = "Muppets:d=4,o=5,b=250:c6,c6,a,b,8a,b,g,p,c6,c6,a,8b,8a,8p,g.,p,e,e,g,f,8e,f,8c6,8c,8d,e,8e,8e,8p,8e,g,2p,c6,c6,a,b,8a,b,g,p,c6,c6,a,8b,a,g.,p,e,e,g,f,8e,f,8c6,8c,8d,e,8e,d,8d,c";
- //char *song = "Xfiles:d=4,o=5,b=125:e,b,a,b,d6,2b.,1p,e,b,a,b,e6,2b.,1p,g6,f#6,e6,d6,e6,2b.,1p,g6,f#6,e6,d6,f#6,2b.,1p,e,b,a,b,d6,2b.,1p,e,b,a,b,e6,2b.,1p,e6,2b.";
- //char *song = "Looney:d=4,o=5,b=140:32p,c6,8f6,8e6,8d6,8c6,a.,8c6,8f6,8e6,8d6,8d#6,e.6,8e6,8e6,8c6,8d6,8c6,8e6,8c6,8d6,8a,8c6,8g,8a#,8a,8f";
- //char *song = "20thCenFox:d=16,o=5,b=140:b,8p,b,b,2b,p,c6,32p,b,32p,c6,32p,b,32p,c6,32p,b,8p,b,b,b,32p,b,32p,b,32p,b,32p,b,32p,b,32p,b,32p,g#,32p,a,32p,b,8p,b,b,2b,4p,8e,8g#,8b,1c#6,8f#,8a,8c#6,1e6,8a,8c#6,8e6,1e6,8b,8g#,8a,2b";
- //char *song = "Bond:d=4,o=5,b=80:32p,16c#6,32d#6,32d#6,16d#6,8d#6,16c#6,16c#6,16c#6,16c#6,32e6,32e6,16e6,8e6,16d#6,16d#6,16d#6,16c#6,32d#6,32d#6,16d#6,8d#6,16c#6,16c#6,16c#6,16c#6,32e6,32e6,16e6,8e6,16d#6,16d6,16c#6,16c#7,c.7,16g#6,16f#6,g#.6";
- //char *song = "MASH:d=8,o=5,b=140:4a,4g,f#,g,p,f#,p,g,p,f#,p,2e.,p,f#,e,4f#,e,f#,p,e,p,4d.,p,f#,4e,d,e,p,d,p,e,p,d,p,2c#.,p,d,c#,4d,c#,d,p,e,p,4f#,p,a,p,4b,a,b,p,a,p,b,p,2a.,4p,a,b,a,4b,a,b,p,2a.,a,4f#,a,b,p,d6,p,4e.6,d6,b,p,a,p,2b";
- //char *song = "StarWars:d=4,o=5,b=45:32p,32f#,32f#,32f#,8b.,8f#.6,32e6,32d#6,32c#6,8b.6,16f#.6,32e6,32d#6,32c#6,8b.6,16f#.6,32e6,32d#6,32e6,8c#.6,32f#,32f#,32f#,8b.,8f#.6,32e6,32d#6,32c#6,8b.6,16f#.6,32e6,32d#6,32c#6,8b.6,16f#.6,32e6,32d#6,32e6,8c#6";
- //char *song = "GoodBad:d=4,o=5,b=56:32p,32a#,32d#6,32a#,32d#6,8a#.,16f#.,16g#.,d#,32a#,32d#6,32a#,32d#6,8a#.,16f#.,16g#.,c#6,32a#,32d#6,32a#,32d#6,8a#.,16f#.,32f.,32d#.,c#,32a#,32d#6,32a#,32d#6,8a#.,16g#.,d#";
- //char *song = "TopGun:d=4,o=4,b=31:32p,16c#,16g#,16g#,32f#,32f,32f#,32f,16d#,16d#,32c#,32d#,16f,32d#,32f,16f#,32f,32c#,16f,d#,16c#,16g#,16g#,32f#,32f,32f#,32f,16d#,16d#,32c#,32d#,16f,32d#,32f,16f#,32f,32c#,g#";
- //char *song = "A-Team:d=8,o=5,b=125:4d#6,a#,2d#6,16p,g#,4a#,4d#.,p,16g,16a#,d#6,a#,f6,2d#6,16p,c#.6,16c6,16a#,g#.,2a#";
- //char *song = "Flinstones:d=4,o=5,b=40:32p,16f6,16a#,16a#6,32g6,16f6,16a#.,16f6,32d#6,32d6,32d6,32d#6,32f6,16a#,16c6,d6,16f6,16a#.,16a#6,32g6,16f6,16a#.,32f6,32f6,32d#6,32d6,32d6,32d#6,32f6,16a#,16c6,a#,16a6,16d.6,16a#6,32a6,32a6,32g6,32f#6,32a6,8g6,16g6,16c.6,32a6,32a6,32g6,32g6,32f6,32e6,32g6,8f6,16f6,16a#.,16a#6,32g6,16f6,16a#.,16f6,32d#6,32d6,32d6,32d#6,32f6,16a#,16c.6,32d6,32d#6,32f6,16a#,16c.6,32d6,32d#6,32f6,16a#6,16c7,8a#.6";
- //char *song = "Jeopardy:d=4,o=6,b=125:c,f,c,f5,c,f,2c,c,f,c,f,a.,8g,8f,8e,8d,8c#,c,f,c,f5,c,f,2c,f.,8d,c,a#5,a5,g5,f5,p,d#,g#,d#,g#5,d#,g#,2d#,d#,g#,d#,g#,c.7,8a#,8g#,8g,8f,8e,d#,g#,d#,g#5,d#,g#,2d#,g#.,8f,d#,c#,c,p,a#5,p,g#.5,d#,g#";
- //char *song = "Gadget:d=16,o=5,b=50:32d#,32f,32f#,32g#,a#,f#,a,f,g#,f#,32d#,32f,32f#,32g#,a#,d#6,4d6,32d#,32f,32f#,32g#,a#,f#,a,f,g#,f#,8d#";
- //char *song = "Smurfs:d=32,o=5,b=200:4c#6,16p,4f#6,p,16c#6,p,8d#6,p,8b,p,4g#,16p,4c#6,p,16a#,p,8f#,p,8a#,p,4g#,4p,g#,p,a#,p,b,p,c6,p,4c#6,16p,4f#6,p,16c#6,p,8d#6,p,8b,p,4g#,16p,4c#6,p,16a#,p,8b,p,8f,p,4f#";
- //char *song = "MahnaMahna:d=16,o=6,b=125:c#,c.,b5,8a#.5,8f.,4g#,a#,g.,4d#,8p,c#,c.,b5,8a#.5,8f.,g#.,8a#.,4g,8p,c#,c.,b5,8a#.5,8f.,4g#,f,g.,8d#.,f,g.,8d#.,f,8g,8d#.,f,8g,d#,8c,a#5,8d#.,8d#.,4d#,8d#.";
- //char *song = "LeisureSuit:d=16,o=6,b=56:f.5,f#.5,g.5,g#5,32a#5,f5,g#.5,a#.5,32f5,g#5,32a#5,g#5,8c#.,a#5,32c#,a5,a#.5,c#.,32a5,a#5,32c#,d#,8e,c#.,f.,f.,f.,f.,f,32e,d#,8d,a#.5,e,32f,e,32f,c#,d#.,c#";
- char *song =
- "MissionImp:d=16,o=6,b=95:32d,32d#,32d,32d#,32d,32d#,32d,32d#,32d,32d,32d#,32e,32f,32f#,32g,g,8p,g,8p,a#,p,c7,p,g,8p,g,8p,f,p,f#,p,g,8p,g,8p,a#,p,c7,p,g,8p,g,8p,f,p,f#,p,a#,g,2d,32p,a#,g,2c#,32p,a#,g,2c,a#5,8c,2p,32p,a#5,g5,2f#,32p,a#5,g5,2f,32p,a#5,g5,2e,d#,8d";
- volatile unsigned int time = 0;
- #define isdigit(n) (n >= '0' && n <= '9')
- /** Delay function. **/
- void delay(unsigned int ms) {
- unsigned int i, ms2; //Modified here, eliminated volatile
- i = time;
- ms2 = ms * 2;
- while ((time - i) < ms2) {
- __no_operation();
- }
- //__delay_cycles(500);
- }
- play(unsigned int hz) {
- CCR0 = (1000000 / hz) - 1;
- CCR1 = (1000000 / hz) / 2;
- TACTL = TASSEL_2 + MC_1;
- }
- stop() {
- TACTL = TASSEL_2 + MC_3; //stop
- CCR0 = 0;
- }
- int main(void) {
- WDTCTL = WDTPW + WDTTMSEL + WDTCNTCL + WDTIS1; // Set interval mode, set to zero and interval to 0.5 ms
- IE1 |= WDTIE; // Enable WDT interrupt
- BCSCTL1 = CALBC1_1MHZ;
- DCOCTL = CALDCO_1MHZ;
- //asm("EINT");
- __enable_interrupt();
- P1DIR |= BIT2; // P1.2 to output
- P1DIR |= BIT1; // P1.1 to output
- P1OUT |= ~BIT1;
- P1SEL |= BIT2; // P1.2 to TA0.1
- CCTL1 = OUTMOD_7; // CCR1 reset/set
- byte default_dur = 4;
- byte default_oct = 6;
- int bpm = 63;
- int num;
- long wholenote;
- long duration;
- byte note;
- byte scale;
- char *p = song;
- while (*p != ':')
- p++; // ignore name
- p++; // skip ':'
- // get default duration
- if (*p == 'd') {
- p++;
- p++; // skip "d="
- num = 0;
- while (isdigit(*p)) {
- num = (num * 10) + (*p++ - '0');
- }
- if (num > 0)
- default_dur = num;
- p++; // skip comma
- }
- // get default octave
- if (*p == 'o') {
- p++;
- p++; // skip "o="
- num = *p++ - '0';
- if (num >= 3 && num <= 7)
- default_oct = num;
- p++; // skip comma
- }
- // get BPM
- if (*p == 'b') {
- p++;
- p++; // skip "b="
- num = 0;
- while (isdigit(*p)) {
- num = (num * 10) + (*p++ - '0');
- }
- bpm = num;
- p++; // skip colon
- }
- // BPM usually expresses the number of quarter notes per minute
- wholenote = (60 * 1000L / bpm) * 4; // this is the time for whole note (in milliseconds)
- // now begin note loop
- while (*p) {
- // first, get note duration, if available
- num = 0;
- while (isdigit(*p)) {
- num = (num * 10) + (*p++ - '0');
- }
- if (num)
- duration = wholenote / num;
- else
- duration = wholenote / default_dur; // we will need to check if we are a dotted note after
- // now get the note
- note = 0;
- switch (*p) {
- case 'c':
- note = 1;
- break;
- case 'd':
- note = 3;
- break;
- case 'e':
- note = 5;
- break;
- case 'f':
- note = 6;
- break;
- case 'g':
- note = 8;
- break;
- case 'a':
- note = 10;
- break;
- case 'b':
- note = 12;
- break;
- case 'p':
- default:
- note = 0;
- }
- p++;
- // now, get optional '#' sharp
- if (*p == '#') {
- note++;
- p++;
- }
- // now, get optional '.' dotted note
- if (*p == '.') {
- duration += duration / 2;
- p++;
- }
- // now, get scale
- if (isdigit(*p)) {
- scale = *p - '0';
- p++;
- } else {
- scale = default_oct;
- }
- scale += OCTAVE_OFFSET;
- if (*p == ',')
- p++; // skip comma for next note (or we may be at the end)
- // now play the note
- if (note) {
- play(notes[(scale - 4) * 12 + note]);
- delay(duration);
- stop();
- } else {
- delay(duration);
- }
- }
- __disable_interrupt();
- //asm("dint");
- _BIS_SR(LPM4_bits);
- }
- #pragma vector=WDT_VECTOR
- __interrupt void watchdog_timer(void) //__interrupt void watchdog_timer
- {
- time++;
- }
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