bluetooth
This commit is contained in:
Jack Humbert
parent
40148c430e
commit
c966e7982c
20 changed files with 2329 additions and 319 deletions
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@ -5,31 +5,6 @@
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#include <avr/io.h>
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#define PI 3.14159265
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#define CHANNEL OCR1C
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volatile uint16_t sample;
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uint16_t lastSample;
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const int sounddata_length=200;
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const unsigned char sounddata_data[] PROGMEM = {128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 129, 127, 129, 128, 127, 133,
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117, 109, 125, 121, 116, 132, 140, 126, 114, 114, 116, 120, 114, 93, 73, 66, 76, 116, 142, 129,
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128, 129, 120, 119, 118, 104, 87, 123, 181, 194, 196, 198, 189, 176, 160, 162, 172, 164, 164, 183,
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197, 188, 168, 167, 170, 165, 185, 209, 206, 196, 196, 199, 185, 162, 156, 167, 176, 173, 170, 166,
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151, 142, 140, 134, 130, 127, 113, 86, 67, 66, 69, 75, 73, 75, 86, 90, 91, 84, 65, 48,
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41, 30, 26, 56, 91, 88, 72, 70, 73, 82, 89, 73, 57, 60, 74, 89, 92, 77, 63, 60,
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53, 47, 56, 64, 63, 61, 56, 54, 52, 36, 16, 22, 51, 66, 67, 70, 76, 88, 99, 92,
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77, 74, 85, 100, 106, 97, 83, 85, 96, 108, 133, 160, 164};
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void delay_us(int count) {
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while(count--) {
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@ -37,202 +12,235 @@ void delay_us(int count) {
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}
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}
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int voices = 0;
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double frequency = 0;
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int volume = 0;
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int position = 0;
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double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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bool sliding = false;
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#define RANGE 1000
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volatile int i=0; //elements of the wave
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void beeps() {
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// DDRB |= (1<<7);
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// PORTB &= ~(1<<7);
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// // Use full 16-bit resolution.
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// ICR1 = 0xFFFF;
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// // I could write a wall of text here to explain... but TL;DW
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// // Go read the ATmega32u4 datasheet.
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// // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
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// // Pin PB7 = OCR1C (Timer 1, Channel C)
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// // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
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// // (i.e. start high, go low when counter matches.)
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// // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
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// // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
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// TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
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// TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
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// // Turn off PWM control on PB7, revert to output low.
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// // TCCR1A &= ~(_BV(COM1C1));
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// // CHANNEL = ((1 << level) - 1);
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// // Turn on PWM control of PB7
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// TCCR1A |= _BV(COM1C1);
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// // CHANNEL = level << OFFSET | 0x0FFF;
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// // CHANNEL = 0b1010101010101010;
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// float x = 12;
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// float y = 24;
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// float length = 50;
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// float scale = 1;
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// // int f1 = 1000000/440;
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// // int f2 = 1000000/880;
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// // for (uint32_t i = 0; i < length * 1000; i++) {
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// // // int frequency = 1/((sin(PI*2*i*scale*pow(2, x/12.0))*.5+1 + sin(PI*2*i*scale*pow(2, y/12.0))*.5+1) / 2);
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// // ICR1 = f1; // Set max to the period
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// // OCR1C = f1 >> 1; // Set compare to half the period
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// // // _delay_us(10);
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// // }
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// int frequency = 1000000/440;
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// ICR1 = frequency; // Set max to the period
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// OCR1C = frequency >> 1; // Set compare to half the period
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// _delay_us(500000);
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// TCCR1A &= ~(_BV(COM1C1));
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// CHANNEL = 0;
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play_notes();
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// play_note(55*pow(2, 0/12.0), 1);
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// play_note(55*pow(2, 12/12.0), 1);
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// play_note(55*pow(2, 24/12.0), 1);
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// play_note(55*pow(2, 0/12.0), 1);
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// play_note(55*pow(2, 12/12.0), 1);
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// play_note(55*pow(2, 24/12.0), 1);
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// play_note(0, 4);
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// play_note(55*pow(2, 0/12.0), 8);
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// play_note(55*pow(2, 12/12.0), 4);
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// play_note(55*pow(2, 10/12.0), 4);
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// play_note(55*pow(2, 12/12.0), 8);
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// play_note(55*pow(2, 10/12.0), 4);
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// play_note(55*pow(2, 7/12.0), 2);
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// play_note(55*pow(2, 8/12.0), 2);
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// play_note(55*pow(2, 7/12.0), 16);
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// play_note(0, 4);
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// play_note(55*pow(2, 3/12.0), 8);
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// play_note(55*pow(2, 5/12.0), 4);
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// play_note(55*pow(2, 7/12.0), 4);
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// play_note(55*pow(2, 7/12.0), 8);
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// play_note(55*pow(2, 5/12.0), 4);
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// play_note(55*pow(2, 3/12.0), 4);
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// play_note(55*pow(2, 2/12.0), 16);
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play_notes();
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}
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void play_note(float freq, int length) {
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DDRB |= (1<<7);
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PORTB &= ~(1<<7);
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void send_freq(double freq, int vol) {
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int duty = (((double)F_CPU) / freq);
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ICR3 = duty; // Set max to the period
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OCR3A = duty >> (0x10 - vol); // Set compare to half the period
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}
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void stop_all_notes() {
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voices = 0;
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TCCR3A = 0;
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TCCR3B = 0;
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frequency = 0;
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volume = 0;
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for (int i = 0; i < 8; i++) {
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frequencies[i] = 0;
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volumes[i] = 0;
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}
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}
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void stop_note(double freq) {
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for (int i = 7; i >= 0; i--) {
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if (frequencies[i] == freq) {
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frequencies[i] = 0;
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volumes[i] = 0;
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for (int j = i; (j < 7); j++) {
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frequencies[j] = frequencies[j+1];
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frequencies[j+1] = 0;
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volumes[j] = volumes[j+1];
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volumes[j+1] = 0;
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}
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}
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}
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voices--;
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if (voices < 0)
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voices = 0;
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if (voices == 0) {
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TCCR3A = 0;
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TCCR3B = 0;
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frequency = 0;
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volume = 0;
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} else {
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double freq = frequencies[voices - 1];
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int vol = volumes[voices - 1];
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if (frequency < freq) {
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sliding = true;
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for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
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send_freq(f, vol);
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}
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sliding = false;
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} else if (frequency > freq) {
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sliding = true;
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for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
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send_freq(f, vol);
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}
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sliding = false;
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}
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send_freq(freq, vol);
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frequency = freq;
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volume = vol;
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}
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}
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void init_notes() {
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// TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (1 << WGM10);
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// TCCR1B = (1 << COM1B1) | (0 << COM1A0) | (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
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// DDRC |= (1<<6);
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// TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
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// TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
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// ICR3 = 0xFFFF;
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// OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
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// cli();
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// /* Enable interrupt on timer2 == 127, with clk/8 prescaler. At 16MHz,
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// this gives a timer interrupt at 15625Hz. */
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// TIMSK3 = (1 << OCIE3A);
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// /* clear/reset timer on match */
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// // TCCR3A = 1<<WGM31 | 0<<WGM30; CTC mode, reset on match
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// // TCCR3B = 0<<CS32 | 1<<CS31 | 0<<CS30; /* clk, /8 prescaler */
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// TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
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// TCCR3B = (0 << WGM33) | (0 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
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// TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
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// TCCR1B = (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
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// // SPCR = 0x50;
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// // SPSR = 0x01;
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// DDRC |= (1<<6);
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// // ICR3 = 0xFFFF;
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// // OCR3A=80;
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// PORTC |= (1<<6);
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// sei();
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}
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// #define highByte(c) ((c >> 8) & 0x00FF)
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// #define lowByte(c) (c & 0x00FF)
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ISR(TIMER3_COMPA_vect) {
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if (ICR3 > 0 && !sliding) {
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switch (position) {
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case 0: {
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int duty = (((double)F_CPU) / (frequency));
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ICR3 = duty; // Set max to the period
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OCR3A = duty >> 1; // Set compare to half the period
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break;
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}
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case 1: {
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int duty = (((double)F_CPU) / (frequency*2));
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ICR3 = duty; // Set max to the period
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OCR3A = duty >> 1; // Set compare to half the period
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break;
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}
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case 2: {
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int duty = (((double)F_CPU) / (frequency*3));
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ICR3 = duty; // Set max to the period
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OCR3A = duty >> 1; // Set compare to half the period
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break;
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}
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}
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position = (position + 1) % 3;
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}
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// /* OCR2A has been cleared, per TCCR2A above */
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// // OCR3A = 127;
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// // pos1 += incr1;
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// // pos2 += incr2;
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// // pos3 += incr3;
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// // sample = sinewave[highByte(pos1)] + sinewave[highByte(pos2)] + sinewave[highByte(pos3)];
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// // OCR3A = sample;
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// OCR3A=pgm_read_byte(&sinewave[pos1]);
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// pos1++;
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// // PORTC &= ~(1<<6);
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// /* buffered, 1x gain, active mode */
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// // SPDR = highByte(sample) | 0x70;
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// // while (!(SPSR & (1<<SPIF)));
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// // SPDR = lowByte(sample);
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// // while (!(SPSR & (1<<SPIF)));
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// // PORTC |= (1<<6);
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}
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void play_note(double freq, int vol) {
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if (freq > 0) {
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int frequency = 1000000/freq;
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ICR1 = frequency; // Set max to the period
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OCR1C = frequency >> 1; // Set compare to half the period
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DDRC |= (1<<6);
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TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
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TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
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}
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TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
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TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
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for (int i = 0; i < length; i++) {
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_delay_us(50000);
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}
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TCCR1A &= ~(_BV(COM1C1));
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}
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// This is called at 8000 Hz to load the next sample.
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ISR(TIMER1_COMPA_vect) {
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if (sample >= sounddata_length) {
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if (sample == sounddata_length + lastSample) {
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TIMSK1 &= ~_BV(OCIE1A);
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// Disable the per-sample timer completely.
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TCCR1B &= ~_BV(CS10);
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if (frequency != 0) {
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if (frequency < freq) {
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for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
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send_freq(f, vol);
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}
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} else if (frequency > freq) {
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for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
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send_freq(f, vol);
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}
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}
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}
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else {
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OCR1C = sounddata_length + lastSample - sample;
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}
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}
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else {
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OCR1C = pgm_read_byte(&sounddata_data[sample]);
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}
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send_freq(freq, vol);
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frequency = freq;
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volume = vol;
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++sample;
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frequencies[voices] = frequency;
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volumes[voices] = volume;
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voices++;
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}
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// ICR3 = 0xFFFF;
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// for (int i = 0; i < 10000; i++) {
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// OCR3A = round((sin(i*freq)*.5)+.5)*0xFFFF;
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// // _delay_us(50);
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// }
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// TCCR3A = 0;
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// TCCR3B = 0;
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}
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void play_notes() {
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// void note(int x, float length) {
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// DDRC |= (1<<6);
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// int t = (int)(440*pow(2,-x/12.0)); // starting note
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// for (int y = 0; y < length*1000/t; y++) { // note length
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// PORTC |= (1<<6);
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// delay_us(t);
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// PORTC &= ~(1<<6);
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// delay_us(t);
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// }
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// PORTC &= ~(1<<6);
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// }
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// Set up Timer 2 to do pulse width modulation on the speaker
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// pin.
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DDRB |= (1<<7);
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PORTB &= ~(1<<7);
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// Use internal clock (datasheet p.160)
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// ASSR &= ~(_BV(EXCLK) | _BV(AS2));
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// Set fast PWM mode (p.157)
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TCCR1A |= _BV(WGM21) | _BV(WGM20);
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TCCR1B &= ~_BV(WGM22);
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// Do non-inverting PWM on pin OC2A (p.155)
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// On the Arduino this is pin 11.
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TCCR1A = (TCCR2A | _BV(COM2A1)) & ~_BV(COM2A0);
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TCCR1A &= ~(_BV(COM2B1) | _BV(COM2B0));
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// No prescaler (p.158)
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TCCR1B = (TCCR1B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
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// Set initial pulse width to the first sample.
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OCR1A = pgm_read_byte(&sounddata_data[0]);
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cli();
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// Set CTC mode (Clear Timer on Compare Match) (p.133)
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// Have to set OCR1A *after*, otherwise it gets reset to 0!
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TCCR2B = (TCCR2B & ~_BV(WGM13)) | _BV(WGM12);
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TCCR2A = TCCR2A & ~(_BV(WGM11) | _BV(WGM10));
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// No prescaler (p.134)
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TCCR2B = (TCCR2B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
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// Set the compare register (OCR1A).
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// OCR1A is a 16-bit register, so we have to do this with
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// interrupts disabled to be safe.
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// OCR2A = F_CPU / SAMPLE_RATE; // 16e6 / 8000 = 2000
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OCR2A = 2000;
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// Enable interrupt when TCNT1 == OCR1A (p.136)
|
||||
TIMSK1 |= _BV(OCIE2A);
|
||||
|
||||
sample = 0;
|
||||
sei();
|
||||
}
|
||||
|
||||
void note(int x, float length) {
|
||||
DDRB |= (1<<1);
|
||||
int t = (int)(440*pow(2,-x/12.0)); // starting note
|
||||
for (int y = 0; y < length*1000/t; y++) { // note length
|
||||
PORTB |= (1<<1);
|
||||
delay_us(t);
|
||||
PORTB &= ~(1<<1);
|
||||
delay_us(t);
|
||||
}
|
||||
PORTB &= ~(1<<1);
|
||||
}
|
||||
|
||||
void true_note(float x, float y, float length) {
|
||||
for (uint32_t i = 0; i < length * 50; i++) {
|
||||
uint32_t v = (uint32_t) (round(sin(PI*2*i*640000*pow(2, x/12.0))*.5+1 + sin(PI*2*i*640000*pow(2, y/12.0))*.5+1) / 2 * pow(2, 8));
|
||||
for (int u = 0; u < 8; u++) {
|
||||
if (v & (1 << u) && !(PORTB&(1<<1)))
|
||||
PORTB |= (1<<1);
|
||||
else if (PORTB&(1<<1))
|
||||
PORTB &= ~(1<<1);
|
||||
}
|
||||
}
|
||||
PORTB &= ~(1<<1);
|
||||
}
|
||||
// void true_note(float x, float y, float length) {
|
||||
// for (uint32_t i = 0; i < length * 50; i++) {
|
||||
// uint32_t v = (uint32_t) (round(sin(PI*2*i*640000*pow(2, x/12.0))*.5+1 + sin(PI*2*i*640000*pow(2, y/12.0))*.5+1) / 2 * pow(2, 8));
|
||||
// for (int u = 0; u < 8; u++) {
|
||||
// if (v & (1 << u) && !(PORTC&(1<<6)))
|
||||
// PORTC |= (1<<6);
|
||||
// else if (PORTC&(1<<6))
|
||||
// PORTC &= ~(1<<6);
|
||||
// }
|
||||
// }
|
||||
// PORTC &= ~(1<<6);
|
||||
// }
|
||||
Loading…
Add table
Add a link
Reference in a new issue