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rtttl.h
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/*
* rtttl.h
*
* Created on: 01.10.2023
* Author: Gunnar Larsen
*
* Description: Simple RTTTL music player
*
* TODO
*
*/
#pragma once
#include "stm32g0xx_hal.h"
#include <inttypes.h>
#include <stdbool.h>
#define RTTTL_OCTAVE_OFFSET 0 // offset octave, as needed
typedef enum {
PAUSE = 0,
NOTE_B0 = 33,
NOTE_CS1 = 35,
NOTE_D1 = 37,
NOTE_DS1 = 39,
NOTE_E1 = 41,
NOTE_F1 = 44,
NOTE_FS1 = 46,
NOTE_G1 = 49,
NOTE_GS1 = 52,
NOTE_A1 = 55,
NOTE_AS1 = 58,
NOTE_B1 = 62,
NOTE_C2 = 65,
NOTE_CS2 = 69,
NOTE_D2 = 73,
NOTE_DS2 = 78,
NOTE_E2 = 82,
NOTE_F2 = 87,
NOTE_FS2 = 93,
NOTE_G2 = 98,
NOTE_GS2 = 104,
NOTE_A2 = 110,
NOTE_AS2 = 117,
NOTE_B2 = 123,
NOTE_C3 = 131,
NOTE_CS3 = 139,
NOTE_D3 = 147,
NOTE_DS3 = 156,
NOTE_E3 = 165,
NOTE_F3 = 175,
NOTE_FS3 = 185,
NOTE_G3 = 196,
NOTE_GS3 = 208,
NOTE_A3 = 220,
NOTE_AS3 = 233,
NOTE_B3 = 247,
NOTE_C4 = 262,
NOTE_CS4 = 277,
NOTE_D4 = 294,
NOTE_DS4 = 311,
NOTE_E4 = 330,
NOTE_F4 = 349,
NOTE_FS4 = 370,
NOTE_G4 = 392,
NOTE_GS4 = 415,
NOTE_A4 = 440,
NOTE_AS4 = 466,
NOTE_B4 = 494,
NOTE_C5 = 523,
NOTE_CS5 = 554,
NOTE_D5 = 587,
NOTE_DS5 = 622,
NOTE_E5 = 659,
NOTE_F5 = 698,
NOTE_FS5 = 740,
NOTE_G5 = 784,
NOTE_GS5 = 831,
NOTE_A5 = 880,
NOTE_AS5 = 932,
NOTE_B5 = 988,
NOTE_C6 = 1047,
NOTE_CS6 = 1109,
NOTE_D6 = 1175,
NOTE_DS6 = 1245,
NOTE_E6 = 1319,
NOTE_F6 = 1397,
NOTE_FS6 = 1480,
NOTE_G6 = 1568,
NOTE_GS6 = 1661,
NOTE_A6 = 1760,
NOTE_AS6 = 1865,
NOTE_B6 = 1976,
NOTE_C7 = 2093,
NOTE_CS7 = 2217,
NOTE_D7 = 2349,
NOTE_DS7 = 2489,
NOTE_E7 = 2637,
NOTE_F7 = 2794,
NOTE_FS7 = 2960,
NOTE_G7 = 3136,
NOTE_GS7 = 3322,
NOTE_A7 = 3520,
NOTE_AS7 = 3729,
NOTE_B7 = 3951,
NOTE_C8 = 4186,
NOTE_CS8 = 4435,
NOTE_D8 = 4699,
NOTE_DS8 = 4978
} NOTES;
typedef struct {
uint8_t default_dur;
uint8_t default_oct;
uint8_t bpm;
uint32_t wholenote;
uint32_t index;
const unsigned char *tune_data;
uint32_t delay_cnt;
bool playing;
TIM_HandleTypeDef *tim_ref;
uint16_t tim_channel;
} st_rtttl_t;
//-----------------------------------------------
extern void rtttl_start(st_rtttl_t*);
extern void rtttl_play(st_rtttl_t*);
extern void rtttl_stop(st_rtttl_t*);