From 46e7fb2d3ccd699c0a1b1fd9d02860b1f2a44141 Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Mon, 26 Oct 2015 14:49:46 -0400 Subject: quantum separated --- quantum/beeps.c | 246 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 quantum/beeps.c (limited to 'quantum/beeps.c') diff --git a/quantum/beeps.c b/quantum/beeps.c new file mode 100644 index 0000000000..8d1f81f210 --- /dev/null +++ b/quantum/beeps.c @@ -0,0 +1,246 @@ +#include "beeps.h" +#include +#include +#include +#include + +#define PI 3.14159265 + +void delay_us(int count) { + while(count--) { + _delay_us(1); + } +} + +int voices = 0; +double frequency = 0; +int volume = 0; +int position = 0; + +double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0}; +int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0}; +bool sliding = false; +#define RANGE 1000 +volatile int i=0; //elements of the wave + + +void beeps() { + play_notes(); +} + +void send_freq(double freq, int vol) { + int duty = (((double)F_CPU) / freq); + ICR3 = duty; // Set max to the period + OCR3A = duty >> (0x10 - vol); // Set compare to half the period +} + +void stop_all_notes() { + voices = 0; + TCCR3A = 0; + TCCR3B = 0; + frequency = 0; + volume = 0; + + for (int i = 0; i < 8; i++) { + frequencies[i] = 0; + volumes[i] = 0; + } +} + +void stop_note(double freq) { + for (int i = 7; i >= 0; i--) { + if (frequencies[i] == freq) { + frequencies[i] = 0; + volumes[i] = 0; + for (int j = i; (j < 7); j++) { + frequencies[j] = frequencies[j+1]; + frequencies[j+1] = 0; + volumes[j] = volumes[j+1]; + volumes[j+1] = 0; + } + } + } + voices--; + if (voices < 0) + voices = 0; + if (voices == 0) { + TCCR3A = 0; + TCCR3B = 0; + frequency = 0; + volume = 0; + } else { + double freq = frequencies[voices - 1]; + int vol = volumes[voices - 1]; + if (frequency < freq) { + sliding = true; + for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) { + send_freq(f, vol); + } + sliding = false; + } else if (frequency > freq) { + sliding = true; + for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) { + send_freq(f, vol); + } + sliding = false; + } + send_freq(freq, vol); + frequency = freq; + volume = vol; + } +} + +void init_notes() { + // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (1 << WGM10); + // TCCR1B = (1 << COM1B1) | (0 << COM1A0) | (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10); + + // DDRC |= (1<<6); + + // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30); + // TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30); + + // ICR3 = 0xFFFF; + // OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element + + + // cli(); + + // /* Enable interrupt on timer2 == 127, with clk/8 prescaler. At 16MHz, + // this gives a timer interrupt at 15625Hz. */ + // TIMSK3 = (1 << OCIE3A); + + // /* clear/reset timer on match */ + // // TCCR3A = 1<> 8) & 0x00FF) +// #define lowByte(c) (c & 0x00FF) + +ISR(TIMER3_COMPA_vect) { + + if (ICR3 > 0 && !sliding) { + switch (position) { + case 0: { + int duty = (((double)F_CPU) / (frequency)); + ICR3 = duty; // Set max to the period + OCR3A = duty >> 1; // Set compare to half the period + break; + } + case 1: { + int duty = (((double)F_CPU) / (frequency*2)); + ICR3 = duty; // Set max to the period + OCR3A = duty >> 1; // Set compare to half the period + break; + } + case 2: { + int duty = (((double)F_CPU) / (frequency*3)); + ICR3 = duty; // Set max to the period + OCR3A = duty >> 1; // Set compare to half the period + break; + } + } + position = (position + 1) % 3; + } +// /* OCR2A has been cleared, per TCCR2A above */ +// // OCR3A = 127; + +// // pos1 += incr1; +// // pos2 += incr2; +// // pos3 += incr3; + +// // sample = sinewave[highByte(pos1)] + sinewave[highByte(pos2)] + sinewave[highByte(pos3)]; + +// // OCR3A = sample; + + +// OCR3A=pgm_read_byte(&sinewave[pos1]); +// pos1++; +// // PORTC &= ~(1<<6); + +// /* buffered, 1x gain, active mode */ +// // SPDR = highByte(sample) | 0x70; +// // while (!(SPSR & (1< 0) { + DDRC |= (1<<6); + + TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30); + TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30); + + if (frequency != 0) { + if (frequency < freq) { + for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) { + send_freq(f, vol); + } + } else if (frequency > freq) { + for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) { + send_freq(f, vol); + } + } + } + send_freq(freq, vol); + frequency = freq; + volume = vol; + + frequencies[voices] = frequency; + volumes[voices] = volume; + voices++; + } + // ICR3 = 0xFFFF; + // for (int i = 0; i < 10000; i++) { + // OCR3A = round((sin(i*freq)*.5)+.5)*0xFFFF; + // // _delay_us(50); + // } + + // TCCR3A = 0; + // TCCR3B = 0; +} + +// void note(int x, float length) { +// DDRC |= (1<<6); +// int t = (int)(440*pow(2,-x/12.0)); // starting note +// for (int y = 0; y < length*1000/t; y++) { // note length +// PORTC |= (1<<6); +// delay_us(t); +// PORTC &= ~(1<<6); +// delay_us(t); +// } +// PORTC &= ~(1<<6); +// } + +// 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); +// } \ No newline at end of file -- cgit v1.2.3