Delete 'INPUT_OUTPUT/Flakes/deep_flakes.ino'

INPUT_OUTPUT/Flakes/deep_flakes.ino

@@ -1,143 +0,0 @@
-//Deep Flakes
-
-#include <stdint.h>
-#include <avr/interrupt.h>
-#include <avr/io.h>
-#include <avr/pgmspace.h>
-
-#include "sample.h"
-
-#define LED_PIN     13
-#define SPEAKER_PIN 11 
-
-#define KNOB_1  (0)
-#define KNOB_2  (1)  
-#define KNOB_3  (2)   
-#define INPUT_3 (3)   
-
-volatile uint16_t sample;
-volatile uint16_t loop_start;
-volatile uint16_t loop_length;
-volatile uint16_t index_bounds;
-volatile uint16_t loop_overflow;
-
-volatile boolean gate;
-volatile boolean gate_prev;
-
-byte lastSample;
-
-void startPlayback()
-{
-    pinMode(SPEAKER_PIN, OUTPUT);
-
-    // Set up Timer 2 to do pulse width modulation on the speaker pin.
-    // Use internal clock (datasheet p.160)
-    ASSR &= ~(_BV(EXCLK) | _BV(AS2));
-
-    // Set fast PWM mode  (p.157)
-    TCCR2A |= _BV(WGM21) | _BV(WGM20);
-    TCCR2B &= ~_BV(WGM22);
-
-    // Do non-inverting PWM on pin OC2A (p.155)
-    // On the Arduino this is pin 11.
-    TCCR2A = (TCCR2A | _BV(COM2A1)) & ~_BV(COM2A0);
-    TCCR2A &= ~(_BV(COM2B1) | _BV(COM2B0));
-    // No prescaler (p.158)
-    TCCR2B = (TCCR2B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
-
-    // Set initial pulse width to the first sample.
-    OCR2A = pgm_read_byte(&sound_data[0]);
-
-    // Set up Timer 1 to send a sample every interrupt.
-    cli();
-
-    // Set CTC mode (Clear Timer on Compare Match) (p.133)
-    // Have to set OCR1A *after*, otherwise it gets reset to 0!
-    TCCR1B = (TCCR1B & ~_BV(WGM13)) | _BV(WGM12);
-    TCCR1A = TCCR1A & ~(_BV(WGM11) | _BV(WGM10));
-
-    // No prescaler (p.134)
-    TCCR1B = (TCCR1B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
-
-    // Set the compare register (OCR1A).
-    // OCR1A is a 16-bit register, so we have to do this with
-    // interrupts disabled to be safe.
-    OCR1A = F_CPU / SAMPLE_RATE; // 16e6 / 8000 = 2000
-
-    // Enable interrupt when TCNT1 == OCR1A (p.136)
-    TIMSK1 |= _BV(OCIE1A);
-
-    lastSample = pgm_read_byte(&sound_data[sound_length - 1]);
-    sample = 0;
-    sei();
-}
-
-void stopPlayback()
-{
-    TIMSK1 &= ~_BV(OCIE1A); // Disable playback per-sample interrupt.
-    TCCR1B &= ~_BV(CS10);   // Disable the per-sample timer completely.
-    TCCR2B &= ~_BV(CS10);   // Disable the PWM timer.
-    digitalWrite(SPEAKER_PIN, LOW);
-}
-
-void setup()
-{
-    Serial.begin(9600);
-    pinMode(LED_PIN, OUTPUT);
-    digitalWrite(LED_PIN, HIGH);
-
-    startPlayback();
-
-    loop_start  = 0; 
-    loop_length = sound_length;
-    gate = false;
-    gate_prev = false;
-}
-
-// This is called at 8000 Hz to load the next sample.
-ISR(TIMER1_COMPA_vect)
-{
-    if(sample >= index_bounds)
-    {
-        sample = loop_start;
-    }
-    else if((sample < loop_start) &&
-            (sample >= loop_overflow))
-    {
-        sample = loop_start;
-    }
-    else if((gate == true) &&
-            (gate_prev == false))
-    {
-        sample = loop_start;
-    }
-    else
-    {
-        OCR2A = pgm_read_byte(&sound_data[sample % sound_length]);
-    }
-    gate_prev = gate;
-    sample++;
-
-}
-
-void loop()
-{
-    loop_start = analogRead(KNOB_1) / 1024.0 * sound_length;
-    loop_length = (analogRead(KNOB_2) + 1) / 1024.0 * sound_length;
-    OCR1A = (512.0 / (analogRead(KNOB_3) + 1)) * (F_CPU / SAMPLE_RATE);
-    gate = analogRead(3) >> 9;  // 10 bits in. gate < 512 == off, gate >= 512 == on 
-    // change to gate = analogRead(3) << 9; if trigger doesn't work)
-
-//  can be up to 2x sound length. the more you know.
-    index_bounds = loop_start + loop_length;
-    Serial.println(loop_length);
-//  this will set the overflow length. take the loop overflow into account when checking the loop boundaries
-    if(index_bounds > sound_length)
-    {
-        loop_overflow = index_bounds - sound_length;
-    }
-    else
-    {
-        loop_overflow = 0;
-    }
-}