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-rw-r--r--quantum/beeps.c231
-rw-r--r--quantum/beeps.h2
-rw-r--r--quantum/keymap_midi.c21
-rw-r--r--quantum/keymap_midi.h2
-rw-r--r--quantum/wave.h265
5 files changed, 423 insertions, 98 deletions
diff --git a/quantum/beeps.c b/quantum/beeps.c
index 8d1f81f21..edcc84aca 100644
--- a/quantum/beeps.c
+++ b/quantum/beeps.c
@@ -1,11 +1,20 @@
-#include "beeps.h"
+#include <stdio.h>
+#include <string.h>
#include <math.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <avr/io.h>
+#include "beeps.h"
+#include "keymap_common.h"
+#include "wave.h"
+
#define PI 3.14159265
+#define SAMPLE_DIVIDER 70
+#define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/256)
+// Resistor value of 1/ (2 * PI * 10nF * (2000000 hertz / SAMPLE_DIVIDER / 10)) for 10nF cap
+
void delay_us(int count) {
while(count--) {
_delay_us(1);
@@ -15,7 +24,7 @@ void delay_us(int count) {
int voices = 0;
double frequency = 0;
int volume = 0;
-int position = 0;
+long position = 0;
double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
@@ -23,6 +32,19 @@ bool sliding = false;
#define RANGE 1000
volatile int i=0; //elements of the wave
+// uint8_t sine[128];
+// uint8_t tri[128];
+// uint8_t squ[128];
+// uint8_t* sine_start;
+// uint8_t* sine_end;
+// uint8_t* tri_start;
+// uint8_t* tri_end;
+
+// uint8_t* s_start;
+// uint8_t* s_end;
+// uint8_t* s_ptr;
+
+
void beeps() {
play_notes();
@@ -36,8 +58,7 @@ void send_freq(double freq, int vol) {
void stop_all_notes() {
voices = 0;
- TCCR3A = 0;
- TCCR3B = 0;
+ TIMSK0 &= ~_BV(OCIE0A);
frequency = 0;
volume = 0;
@@ -48,6 +69,7 @@ void stop_all_notes() {
}
void stop_note(double freq) {
+ freq = freq / SAMPLE_RATE;
for (int i = 7; i >= 0; i--) {
if (frequencies[i] == freq) {
frequencies[i] = 0;
@@ -64,151 +86,176 @@ void stop_note(double freq) {
if (voices < 0)
voices = 0;
if (voices == 0) {
- TCCR3A = 0;
- TCCR3B = 0;
+ TIMSK0 &= ~_BV(OCIE0A);
frequency = 0;
volume = 0;
} else {
double freq = frequencies[voices - 1];
int vol = volumes[voices - 1];
+ double starting_f = frequency;
if (frequency < freq) {
sliding = true;
- for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
- send_freq(f, vol);
+ for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) {
+ frequency = f;
}
sliding = false;
} else if (frequency > freq) {
sliding = true;
- for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
- send_freq(f, vol);
+ for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) {
+ frequency = f;
}
sliding = false;
}
- send_freq(freq, vol);
+ // 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);
+ // for(int i = 0; i < 128; i++) {
+ // sine[i] = sin(i * PI / 64) * 128 + 128;
+ // tri[i] = 256 - abs((i - 64) * 4);
+ // }
+ // sine_start = &sine;
+ // sine_end = &sine + 128;
+ // tri_start = &tri;
+ // tri_end = &tri + 128;
- // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- // TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
+ // new
- // ICR3 = 0xFFFF;
- // OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
+ PLLFRQ = _BV(PDIV2);
+ PLLCSR = _BV(PLLE);
+ while(!(PLLCSR & _BV(PLOCK)));
+ PLLFRQ |= _BV(PLLTM0); /* PCK 48MHz */
+
+ /* Init a fast PWM on Timer4 */
+ TCCR4A = _BV(COM4A0) | _BV(PWM4A); /* Clear OC4A on Compare Match */
+ TCCR4B = _BV(CS40); /* No prescaling => f = PCK/256 = 187500Hz */
+ OCR4A = 0;
- // cli();
+ /* Enable the OC4A output */
+ DDRC |= _BV(PORTC6);
- // /* 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<<WGM31 | 0<<WGM30; CTC mode, reset on match
- // // TCCR3B = 0<<CS32 | 1<<CS31 | 0<<CS30; /* clk, /8 prescaler */
- // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- // TCCR3B = (0 << WGM33) | (0 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
+ /* First disable the timer overflow interrupt while we're configuring */
+ // TIMSK0 &= ~(1<<TOIE0);
+
+ // /* Configure timer4 in normal mode (pure counting, no PWM etc.) */
+ // TCCR0A &= ~((1<<WGM01) | (1<<WGM00));
+ // TCCR0B &= ~(1<<WGM02);
+ // /* Disable Compare Match A interrupt enable (only want overflow) */
+ // TIMSK0 &= ~(1<<OCIE0A);
+
+ // TCCR0B |= (1<<CS01); // Set bits
+ // TCCR0B &= ~(1<<CS00) | ~(1<<CS02); // Clear bit
+
+ // /* Save value globally for later reload in ISR */
+ // tcnt0 = 45 - 1;
- // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
- // TCCR1B = (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
- // // SPCR = 0x50;
- // // SPSR = 0x01;
- // DDRC |= (1<<6);
- // // ICR3 = 0xFFFF;
- // // OCR3A=80;
- // PORTC |= (1<<6);
+ // /* Finally load end enable the timer */
+ // TCNT0 = tcnt0;
+ // TIMSK0 |= (1<<TOIE0);
- // sei();
}
-// #define highByte(c) ((c >> 8) & 0x00FF)
-// #define lowByte(c) (c & 0x00FF)
+int max = 0xFF;
+float sum = 0;
+int value = 128;
+float place = 0;
-ISR(TIMER3_COMPA_vect) {
+ISR(TIMER0_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)];
+ // value = *(sine_start+=(long)frequencies[0]);
+ // OCR4A = value;
+ // if (sine_start >= sine_end) {
+ // sine_start = &sine[(sine_start - sine_end) % 128];
+ // }
-// // OCR3A = sample;
+ // OCR4A = pgm_read_byte(sine_start);
+ // // sine_start = &sine[(sine_start - &sine[0] + (int)frequencies[0]) % 128];
+ // sine_start += (int)frequencies[0];
+ // if (sine_start >= sine_end) {
+ // sine_start = &sine[(sine_start - sine_end) % 128];
+ // }
+
+ // OCR4A = pgm_read_byte(s_ptr);
+ // s_ptr = s_start + (uint8_t)place;
+ // OCR4A = pgm_read_byte(s_ptr);
+
+
+ // SINE
+ OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]);
+
+ // SQUARE
+ // if (((int)place) >= 1024){
+ // OCR4A = 0xFF;
+ // } else {
+ // OCR4A = 0x00;
+ // }
+
+ // SAWTOOTH
+ // OCR4A = (int)place / 4;
+
+ // TRIANGLE
+ // if (((int)place) >= 1024) {
+ // OCR4A = (int)place / 2;
+ // } else {
+ // OCR4A = 2048 - (int)place / 2;
+ // }
+
+ place += frequency;
+ if (place >= SINE_LENGTH)
+ place -= SINE_LENGTH;
+
+}
-// OCR3A=pgm_read_byte(&sinewave[pos1]);
-// pos1++;
-// // PORTC &= ~(1<<6);
-// /* buffered, 1x gain, active mode */
-// // SPDR = highByte(sample) | 0x70;
-// // while (!(SPSR & (1<<SPIF)));
+ISR(TIMER0_COMPB_vect)
+{
-// // SPDR = lowByte(sample);
-// // while (!(SPSR & (1<<SPIF)));
+ /* Disable the interrupt */
+ TIMSK0 &= ~_BV(OCIE0B);
-// // PORTC |= (1<<6);
}
void play_note(double freq, int vol) {
+ freq = freq / SAMPLE_RATE;
if (freq > 0) {
- DDRC |= (1<<6);
- TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+ // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (1 << WGM30);
+ // TCCR3B = (0 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
+ // TIMSK3 = 0x0;
if (frequency != 0) {
+ double starting_f = frequency;
if (frequency < freq) {
- for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
- send_freq(f, vol);
+ for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) {
+ frequency = f;
}
} else if (frequency > freq) {
- for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
- send_freq(f, vol);
+ for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) {
+ frequency = f;
}
}
}
- send_freq(freq, vol);
+ // send_freq(freq, vol);
frequency = freq;
volume = vol;
frequencies[voices] = frequency;
volumes[voices] = volume;
voices++;
+ // position = 0;
+ // TCNT0 = 0;
}
// ICR3 = 0xFFFF;
// for (int i = 0; i < 10000; i++) {
@@ -218,6 +265,18 @@ void play_note(double freq, int vol) {
// TCCR3A = 0;
// TCCR3B = 0;
+
+
+ TIMSK0 &= ~_BV(OCIE0A) | ~_BV(OCIE0B);
+
+ TCCR0A = _BV(WGM01);
+ TCCR0B = _BV(CS01);
+ OCR0A = SAMPLE_DIVIDER - 1;
+ OCR0B = 1;
+
+ TIMSK0 |= _BV(OCIE0A);
+ // sei();
+
}
// void note(int x, float length) {
diff --git a/quantum/beeps.h b/quantum/beeps.h
index 378983c60..a7fcf6c23 100644
--- a/quantum/beeps.h
+++ b/quantum/beeps.h
@@ -9,4 +9,4 @@ void true_note(float x, float y, float length);
void play_note(double freq, int vol);
void stop_note(double freq);
void stop_all_notes();
-void init_notes(); \ No newline at end of file
+void init_notes();
diff --git a/quantum/keymap_midi.c b/quantum/keymap_midi.c
index b7eba3ab7..3a1408e22 100644
--- a/quantum/keymap_midi.c
+++ b/quantum/keymap_midi.c
@@ -17,7 +17,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "keymap_common.h"
#include "keymap_midi.h"
-#include <lufa.h>
uint8_t starting_note = 0x0C;
int offset = 7;
@@ -35,7 +34,7 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
if (record->event.key.col == (MATRIX_COLS - 1) && record->event.key.row == (MATRIX_ROWS - 1)) {
if (record->event.pressed) {
starting_note++;
- play_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
+ play_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
midi_send_cc(&midi_device, 0, 0x7B, 0);
midi_send_cc(&midi_device, 1, 0x7B, 0);
midi_send_cc(&midi_device, 2, 0x7B, 0);
@@ -43,7 +42,7 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
midi_send_cc(&midi_device, 4, 0x7B, 0);
return;
} else {
- stop_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)));
+ stop_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)));
stop_all_notes();
return;
}
@@ -51,7 +50,7 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
if (record->event.key.col == (MATRIX_COLS - 2) && record->event.key.row == (MATRIX_ROWS - 1)) {
if (record->event.pressed) {
starting_note--;
- play_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
+ play_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
midi_send_cc(&midi_device, 0, 0x7B, 0);
midi_send_cc(&midi_device, 1, 0x7B, 0);
midi_send_cc(&midi_device, 2, 0x7B, 0);
@@ -59,7 +58,7 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
midi_send_cc(&midi_device, 4, 0x7B, 0);
return;
} else {
- stop_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)));
+ stop_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[0 + offset])/12.0+(MATRIX_ROWS - 1)));
stop_all_notes();
return;
}
@@ -74,9 +73,9 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
midi_send_cc(&midi_device, 4, 0x7B, 0);
stop_all_notes();
for (int i = 0; i <= 7; i++) {
- play_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
+ play_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
_delay_us(80000);
- stop_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)));
+ stop_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)));
_delay_us(8000);
}
return;
@@ -90,9 +89,9 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
midi_send_cc(&midi_device, 4, 0x7B, 0);
stop_all_notes();
for (int i = 0; i <= 7; i++) {
- play_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
+ play_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)), 0xC);
_delay_us(80000);
- stop_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)));
+ stop_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[i + offset])/12.0+(MATRIX_ROWS - 1)));
_delay_us(8000);
}
return;
@@ -101,10 +100,10 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
if (record->event.pressed) {
// midi_send_noteon(&midi_device, record->event.key.row, starting_note + SCALE[record->event.key.col], 127);
midi_send_noteon(&midi_device, 0, (starting_note + SCALE[record->event.key.col + offset])+12*(MATRIX_ROWS - record->event.key.row), 127);
- play_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)), 0xF);
+ play_note(((double)261.626)*pow(2.0, 0.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)), 0xF);
} else {
// midi_send_noteoff(&midi_device, record->event.key.row, starting_note + SCALE[record->event.key.col], 127);
midi_send_noteoff(&midi_device, 0, (starting_note + SCALE[record->event.key.col + offset])+12*(MATRIX_ROWS - record->event.key.row), 127);
- stop_note(((double)261.6)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)));
+ stop_note(((double)261.626)*pow(2.0, 0.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)));
}
} \ No newline at end of file
diff --git a/quantum/keymap_midi.h b/quantum/keymap_midi.h
index c5917f884..a89420ce2 100644
--- a/quantum/keymap_midi.h
+++ b/quantum/keymap_midi.h
@@ -18,6 +18,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef KEYMAP_MIDI_H
#define KEYMAP_MIDI_H
+#include <lufa.h>
+
#define MIDI 0x6000
#define MIDI12 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000
diff --git a/quantum/wave.h b/quantum/wave.h
new file mode 100644
index 000000000..6ebc34851
--- /dev/null
+++ b/quantum/wave.h
@@ -0,0 +1,265 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+
+#define SINE_LENGTH 2048
+
+const uint8_t sinewave[] PROGMEM= //2048 values
+{
+0x80,0x80,0x80,0x81,0x81,0x81,0x82,0x82,
+0x83,0x83,0x83,0x84,0x84,0x85,0x85,0x85,
+0x86,0x86,0x87,0x87,0x87,0x88,0x88,0x88,
+0x89,0x89,0x8a,0x8a,0x8a,0x8b,0x8b,0x8c,
+0x8c,0x8c,0x8d,0x8d,0x8e,0x8e,0x8e,0x8f,
+0x8f,0x8f,0x90,0x90,0x91,0x91,0x91,0x92,
+0x92,0x93,0x93,0x93,0x94,0x94,0x95,0x95,
+0x95,0x96,0x96,0x96,0x97,0x97,0x98,0x98,
+0x98,0x99,0x99,0x9a,0x9a,0x9a,0x9b,0x9b,
+0x9b,0x9c,0x9c,0x9d,0x9d,0x9d,0x9e,0x9e,
+0x9e,0x9f,0x9f,0xa0,0xa0,0xa0,0xa1,0xa1,
+0xa2,0xa2,0xa2,0xa3,0xa3,0xa3,0xa4,0xa4,
+0xa5,0xa5,0xa5,0xa6,0xa6,0xa6,0xa7,0xa7,
+0xa7,0xa8,0xa8,0xa9,0xa9,0xa9,0xaa,0xaa,
+0xaa,0xab,0xab,0xac,0xac,0xac,0xad,0xad,
+0xad,0xae,0xae,0xae,0xaf,0xaf,0xb0,0xb0,
+0xb0,0xb1,0xb1,0xb1,0xb2,0xb2,0xb2,0xb3,
+0xb3,0xb4,0xb4,0xb4,0xb5,0xb5,0xb5,0xb6,
+0xb6,0xb6,0xb7,0xb7,0xb7,0xb8,0xb8,0xb8,
+0xb9,0xb9,0xba,0xba,0xba,0xbb,0xbb,0xbb,
+0xbc,0xbc,0xbc,0xbd,0xbd,0xbd,0xbe,0xbe,
+0xbe,0xbf,0xbf,0xbf,0xc0,0xc0,0xc0,0xc1,
+0xc1,0xc1,0xc2,0xc2,0xc2,0xc3,0xc3,0xc3,
+0xc4,0xc4,0xc4,0xc5,0xc5,0xc5,0xc6,0xc6,
+0xc6,0xc7,0xc7,0xc7,0xc8,0xc8,0xc8,0xc9,
+0xc9,0xc9,0xca,0xca,0xca,0xcb,0xcb,0xcb,
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+}; \ No newline at end of file