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Zay950 2017-03-29 12:00:38 -07:00 • committed by GitHub
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306
quantum/audio/audio.c
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
//#include <math.h>
@ -77,6 +92,7 @@ static bool audio_initialized = false;
audio_config_t audio_config;
uint16_t envelope_index = 0;
bool glissando = true;
void audio_init()
{
@ -88,15 +104,15 @@ void audio_init()
}
audio_config.raw = eeconfig_read_audio();
// Set port PC6 (OC3A and /OC4A) as output
// Set port PC6 (OC3A and /OC4A) as output
DDRC |= _BV(PORTC6);
DISABLE_AUDIO_COUNTER_3_ISR;
// TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
// Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14 (Period = ICR3, Duty Cycle = OCR3A)
// Clock Select (CS3n) = 0b010 = Clock / 8
// TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
// Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14 (Period = ICR3, Duty Cycle = OCR3A)
// Clock Select (CS3n) = 0b010 = Clock / 8
TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
@ -105,6 +121,8 @@ void audio_init()
void stop_all_notes()
{
dprintf("audio stop all notes");
if (!audio_initialized) {
audio_init();
}
@ -127,6 +145,8 @@ void stop_all_notes()
void stop_note(float freq)
{
dprintf("audio stop note freq=%d", (int)freq);
if (playing_note) {
if (!audio_initialized) {
audio_init();
@ -182,155 +202,161 @@ float vibrato(float average_freq) {
ISR(TIMER3_COMPA_vect)
{
float freq;
float freq;
if (playing_note) {
if (voices > 0) {
if (polyphony_rate > 0) {
if (voices > 1) {
voice_place %= voices;
if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
voice_place = (voice_place + 1) % voices;
place = 0.0;
}
}
if (playing_note) {
if (voices > 0) {
if (polyphony_rate > 0) {
if (voices > 1) {
voice_place %= voices;
if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
voice_place = (voice_place + 1) % voices;
place = 0.0;
}
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequencies[voice_place]);
} else {
freq = frequencies[voice_place];
}
#else
freq = frequencies[voice_place];
#endif
} else {
if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
frequency = frequency * pow(2, 440/frequency/12/2);
} else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
frequency = frequency * pow(2, -440/frequency/12/2);
} else {
frequency = frequencies[voices - 1];
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequencies[voice_place]);
} else {
freq = frequencies[voice_place];
}
#else
freq = frequencies[voice_place];
#endif
} else {
if (glissando) {
if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
frequency = frequency * pow(2, 440/frequency/12/2);
} else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
frequency = frequency * pow(2, -440/frequency/12/2);
} else {
frequency = frequencies[voices - 1];
}
} else {
frequency = frequencies[voices - 1];
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequency);
} else {
freq = frequency;
}
#else
freq = frequency;
#endif
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequency);
} else {
freq = frequency;
}
#else
freq = frequency;
#endif
}
if (envelope_index < 65535) {
envelope_index++;
}
if (envelope_index < 65535) {
envelope_index++;
}
freq = voice_envelope(freq);
freq = voice_envelope(freq);
if (freq < 30.517578125) {
freq = 30.52;
}
if (freq < 30.517578125) {
freq = 30.52;
}
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
}
}
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
}
}
if (playing_notes) {
if (note_frequency > 0) {
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(note_frequency);
} else {
freq = note_frequency;
}
#else
freq = note_frequency;
#endif
if (playing_notes) {
if (note_frequency > 0) {
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(note_frequency);
} else {
freq = note_frequency;
}
#else
freq = note_frequency;
#endif
if (envelope_index < 65535) {
envelope_index++;
}
freq = voice_envelope(freq);
if (envelope_index < 65535) {
envelope_index++;
}
freq = voice_envelope(freq);
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
} else {
TIMER_3_PERIOD = 0;
TIMER_3_DUTY_CYCLE = 0;
}
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
} else {
TIMER_3_PERIOD = 0;
TIMER_3_DUTY_CYCLE = 0;
}
note_position++;
bool end_of_note = false;
if (TIMER_3_PERIOD > 0) {
end_of_note = (note_position >= (note_length / TIMER_3_PERIOD * 0xFFFF));
} else {
end_of_note = (note_position >= (note_length * 0x7FF));
}
note_position++;
bool end_of_note = false;
if (TIMER_3_PERIOD > 0) {
end_of_note = (note_position >= (note_length / TIMER_3_PERIOD * 0xFFFF));
} else {
end_of_note = (note_position >= (note_length * 0x7FF));
}
if (end_of_note) {
current_note++;
if (current_note >= notes_count) {
if (notes_repeat) {
current_note = 0;
} else {
DISABLE_AUDIO_COUNTER_3_ISR;
DISABLE_AUDIO_COUNTER_3_OUTPUT;
playing_notes = false;
return;
}
}
if (!note_resting && (notes_rest > 0)) {
note_resting = true;
note_frequency = 0;
note_length = notes_rest;
current_note--;
} else {
note_resting = false;
envelope_index = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
}
if (end_of_note) {
current_note++;
if (current_note >= notes_count) {
if (notes_repeat) {
current_note = 0;
} else {
DISABLE_AUDIO_COUNTER_3_ISR;
DISABLE_AUDIO_COUNTER_3_OUTPUT;
playing_notes = false;
return;
}
}
if (!note_resting && (notes_rest > 0)) {
note_resting = true;
note_frequency = 0;
note_length = notes_rest;
current_note--;
} else {
note_resting = false;
envelope_index = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
}
note_position = 0;
}
}
note_position = 0;
}
}
if (!audio_config.enable) {
playing_notes = false;
playing_note = false;
}
if (!audio_config.enable) {
playing_notes = false;
playing_note = false;
}
}
void play_note(float freq, int vol) {
dprintf("audio play note freq=%d vol=%d", (int)freq, vol);
if (!audio_initialized) {
audio_init();
}
if (audio_config.enable && voices < 8) {
DISABLE_AUDIO_COUNTER_3_ISR;
if (audio_config.enable && voices < 8) {
DISABLE_AUDIO_COUNTER_3_ISR;
// Cancel notes if notes are playing
if (playing_notes)
stop_all_notes();
// Cancel notes if notes are playing
if (playing_notes)
stop_all_notes();
playing_note = true;
playing_note = true;
envelope_index = 0;
envelope_index = 0;
if (freq > 0) {
frequencies[voices] = freq;
volumes[voices] = vol;
voices++;
}
if (freq > 0) {
frequencies[voices] = freq;
volumes[voices] = vol;
voices++;
}
ENABLE_AUDIO_COUNTER_3_ISR;
ENABLE_AUDIO_COUNTER_3_OUTPUT;
}
}
}
@ -341,37 +367,37 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
audio_init();
}
if (audio_config.enable) {
if (audio_config.enable) {
DISABLE_AUDIO_COUNTER_3_ISR;
DISABLE_AUDIO_COUNTER_3_ISR;
// Cancel note if a note is playing
if (playing_note)
stop_all_notes();
// Cancel note if a note is playing
if (playing_note)
stop_all_notes();
playing_notes = true;
playing_notes = true;
notes_pointer = np;
notes_count = n_count;
notes_repeat = n_repeat;
notes_rest = n_rest;
notes_pointer = np;
notes_count = n_count;
notes_repeat = n_repeat;
notes_rest = n_rest;
place = 0;
current_note = 0;
place = 0;
current_note = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
note_position = 0;
note_position = 0;
ENABLE_AUDIO_COUNTER_3_ISR;
ENABLE_AUDIO_COUNTER_3_OUTPUT;
}
}
}
bool is_playing_notes(void) {
return playing_notes;
return playing_notes;
}
bool is_audio_on(void) {

17
quantum/audio/audio.h
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AUDIO_H
#define AUDIO_H
@ -88,4 +103,4 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
bool is_playing_notes(void);
#endif
#endif

15
quantum/audio/audio_pwm.c
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
//#include <math.h>

16
quantum/audio/luts.c
View file

@ -1,3 +1,19 @@
/* Copyright 2016 IBNobody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>

18
quantum/audio/luts.h
View file

@ -1,3 +1,19 @@
/* Copyright 2016 IBNobody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
@ -12,4 +28,4 @@
extern const float vibrato_lut[VIBRATO_LUT_LENGTH];
extern const uint16_t frequency_lut[FREQUENCY_LUT_LENGTH];
#endif /* LUTS_H */
#endif /* LUTS_H */

18
quantum/audio/musical_notes.h
View file

@ -1,3 +1,19 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MUSICAL_NOTES_H
#define MUSICAL_NOTES_H
@ -214,4 +230,4 @@
#define NOTE_BF8 NOTE_AS8
#endif
#endif

42
quantum/audio/song_list.h
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "musical_notes.h"
#ifndef SONG_LIST_H
@ -134,4 +149,31 @@
E__NOTE(_E6), \
S__NOTE(_B5),
#define COIN_SOUND \
E__NOTE(_A5 ), \
HD_NOTE(_E6 ),
#define ONE_UP_SOUND \
Q__NOTE(_E6 ), \
Q__NOTE(_G6 ), \
Q__NOTE(_E7 ), \
Q__NOTE(_C7 ), \
Q__NOTE(_D7 ), \
Q__NOTE(_G7 ),
#define SONIC_RING \
E__NOTE(_E6), \
E__NOTE(_G6), \
HD_NOTE(_C7),
#define ZELDA_PUZZLE \
Q__NOTE(_G5), \
Q__NOTE(_FS5), \
Q__NOTE(_DS5), \
Q__NOTE(_A4), \
Q__NOTE(_GS4), \
Q__NOTE(_E5), \
Q__NOTE(_GS5), \
HD_NOTE(_C6),
#endif

137
quantum/audio/voices.c
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "voices.h"
#include "audio.h"
#include "stdlib.h"
@ -6,6 +21,7 @@
extern uint16_t envelope_index;
extern float note_timbre;
extern float polyphony_rate;
extern bool glissando;
voice_type voice = default_voice;
@ -18,20 +34,132 @@ void voice_iterate() {
}
void voice_deiterate() {
voice = (voice - 1) % number_of_voices;
voice = (voice - 1 + number_of_voices) % number_of_voices;
}
float voice_envelope(float frequency) {
// envelope_index ranges from 0 to 0xFFFF, which is preserved at 880.0 Hz
__attribute__ ((unused))
uint16_t compensated_index = (uint16_t)((float)envelope_index * (880.0 / frequency));
switch (voice) {
case default_voice:
glissando = true;
note_timbre = TIMBRE_50;
polyphony_rate = 0;
break;
#ifdef AUDIO_VOICES
case something:
glissando = false;
polyphony_rate = 0;
switch (compensated_index) {
case 0 ... 9:
note_timbre = TIMBRE_12;
break;
case 10 ... 19:
note_timbre = TIMBRE_25;
break;
case 20 ... 200:
note_timbre = .125 + .125;
break;
default:
note_timbre = .125;
break;
}
break;
case drums:
glissando = false;
polyphony_rate = 0;
// switch (compensated_index) {
// case 0 ... 10:
// note_timbre = 0.5;
// break;
// case 11 ... 20:
// note_timbre = 0.5 * (21 - compensated_index) / 10;
// break;
// default:
// note_timbre = 0;
// break;
// }
// frequency = (rand() % (int)(frequency * 1.2 - frequency)) + (frequency * 0.8);
if (frequency < 80.0) {
} else if (frequency < 160.0) {
// Bass drum: 60 - 100 Hz
frequency = (rand() % (int)(40)) + 60;
switch (envelope_index) {
case 0 ... 10:
note_timbre = 0.5;
break;
case 11 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 10;
break;
default:
note_timbre = 0;
break;
}
} else if (frequency < 320.0) {
// Snare drum: 1 - 2 KHz
frequency = (rand() % (int)(1000)) + 1000;
switch (envelope_index) {
case 0 ... 5:
note_timbre = 0.5;
break;
case 6 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 15;
break;
default:
note_timbre = 0;
break;
}
} else if (frequency < 640.0) {
// Closed Hi-hat: 3 - 5 KHz
frequency = (rand() % (int)(2000)) + 3000;
switch (envelope_index) {
case 0 ... 15:
note_timbre = 0.5;
break;
case 16 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 5;
break;
default:
note_timbre = 0;
break;
}
} else if (frequency < 1280.0) {
// Open Hi-hat: 3 - 5 KHz
frequency = (rand() % (int)(2000)) + 3000;
switch (envelope_index) {
case 0 ... 35:
note_timbre = 0.5;
break;
case 36 ... 50:
note_timbre = 0.5 * (51 - envelope_index) / 15;
break;
default:
note_timbre = 0;
break;
}
}
break;
case butts_fader:
glissando = true;
polyphony_rate = 0;
switch (compensated_index) {
case 0 ... 9:
@ -79,6 +207,7 @@ float voice_envelope(float frequency) {
case duty_osc:
// This slows the loop down a substantial amount, so higher notes may freeze
glissando = true;
polyphony_rate = 0;
switch (compensated_index) {
default:
@ -93,6 +222,7 @@ float voice_envelope(float frequency) {
break;
case duty_octave_down:
glissando = true;
polyphony_rate = 0;
note_timbre = (envelope_index % 2) * .125 + .375 * 2;
if ((envelope_index % 4) == 0)
@ -101,6 +231,7 @@ float voice_envelope(float frequency) {
note_timbre = 0;
break;
case delayed_vibrato:
glissando = true;
polyphony_rate = 0;
note_timbre = TIMBRE_50;
#define VOICE_VIBRATO_DELAY 150
@ -155,11 +286,11 @@ float voice_envelope(float frequency) {
// note_timbre = 0.25;
// break;
#endif
default:
break;
}
return frequency;
}

21
quantum/audio/voices.h
View file

@ -1,3 +1,18 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
@ -11,6 +26,9 @@ float voice_envelope(float frequency);
typedef enum {
default_voice,
#ifdef AUDIO_VOICES
something,
drums,
butts_fader,
octave_crunch,
duty_osc,
@ -21,6 +39,7 @@ typedef enum {
// duty_fourth_down,
// duty_third_down,
// duty_fifth_third_down,
#endif
number_of_voices // important that this is last
} voice_type;
@ -28,4 +47,4 @@ void set_voice(voice_type v);
void voice_iterate(void);
void voice_deiterate(void);
#endif
#endif

18
quantum/audio/wave.h
View file

@ -1,3 +1,19 @@
/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
@ -262,4 +278,4 @@ const uint8_t sinewave[] PROGMEM= //2048 values
0x76,0x77,0x77,0x77,0x78,0x78,0x78,0x79,
0x79,0x7a,0x7a,0x7a,0x7b,0x7b,0x7c,0x7c,
0x7c,0x7d,0x7d,0x7e,0x7e,0x7e,0x7f,0x7f
};
};