/**********************************************************************
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* Copyright: (C)2024 LingYun IoT System Studio
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* Author: GuoWenxue<guowenxue@gmail.com>
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* Description: ISKBoard buzzer/beeper driver and music play
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*
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* ChangeLog:
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* Version Date Author Description
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* V1.0.0 2024.08.29 GuoWenxue Release initial version
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***********************************************************************/
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#include "tim.h"
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#include "buzzer.h"
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#define ARRAY_SIZE(song) (sizeof(song)/sizeof(song[0]))
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/* 音符频率定义(Hz) */
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#define NOTE_C4 524
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#define NOTE_D4 588
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#define NOTE_E4 660
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#define NOTE_F4 698
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#define NOTE_G4 784
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#define NOTE_A4 880
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#define NOTE_B4 988
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#define NOTE_C5 1046
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#define NOTE_D5 1174
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#define NOTE_E5 1318
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#define NOTE_F5 1396
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#define NOTE_G5 1568
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#define NOTE_A5 1760
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#define NOTE_B5 1976
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#define NOTE_C6 2093
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#define REST 0
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#define BEAT 400 /* 一拍时长(ms)，可自行调整节奏快慢 */
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/* 《小星星》简谱：
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* 1 1 5 5 6 6 5 - 4 4 3 3 2 2 1
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* 5 5 4 4 3 3 2 - 5 5 4 4 3 3 2
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* 1 1 5 5 6 6 5 - 4 4 3 3 2 2 1
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* (C=1, D=2, E=3, F=4, G=5, A=6, B=7)
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*/
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const Note_t twinkle[] =
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{
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/* Twinkle twinkle little star */
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{NOTE_C4, BEAT}, {NOTE_C4, BEAT}, {NOTE_G4, BEAT}, {NOTE_G4, BEAT},
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{NOTE_A4, BEAT}, {NOTE_A4, BEAT}, {NOTE_G4, BEAT * 2},
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/* How I wonder what you are */
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{NOTE_F4, BEAT}, {NOTE_F4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT},
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{NOTE_D4, BEAT}, {NOTE_D4, BEAT}, {NOTE_C4, BEAT * 2},
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/* Up above the world so high */
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{NOTE_G4, BEAT}, {NOTE_G4, BEAT}, {NOTE_F4, BEAT}, {NOTE_F4, BEAT},
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{NOTE_E4, BEAT}, {NOTE_E4, BEAT}, {NOTE_D4, BEAT * 2},
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/* Like a diamond in the sky */
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{NOTE_G4, BEAT}, {NOTE_G4, BEAT}, {NOTE_F4, BEAT}, {NOTE_F4, BEAT},
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{NOTE_E4, BEAT}, {NOTE_E4, BEAT}, {NOTE_D4, BEAT * 2},
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/* Twinkle twinkle little star (repeat) */
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{NOTE_C4, BEAT}, {NOTE_C4, BEAT}, {NOTE_G4, BEAT}, {NOTE_G4, BEAT},
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{NOTE_A4, BEAT}, {NOTE_A4, BEAT}, {NOTE_G4, BEAT * 2},
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/* How I wonder what you are (repeat) */
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{NOTE_F4, BEAT}, {NOTE_F4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT},
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{NOTE_D4, BEAT}, {NOTE_D4, BEAT}, {NOTE_C4, BEAT * 2},
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};
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const uint32_t twinkle_count = ARRAY_SIZE(twinkle);
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/* 《祝你生日快乐》(Happy Birthday to You)
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* 该曲旋律/歌词经美国法院2015-2016年裁定确认为公有领域作品，可放心使用。
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* 简谱: 5 5 6 5 1' 7 | 5 5 6 5 2' 1' | 5 5 5' 3' 1' 7 6 | 4' 4' 3' 1' 2' 1'
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*/
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const Note_t happy_birthday[] =
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{
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/* Happy Birthday to you */
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{NOTE_G4, BEAT / 2}, {NOTE_G4, BEAT / 2}, {NOTE_A4, BEAT}, {NOTE_G4, BEAT},
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{NOTE_C5, BEAT}, {NOTE_B4, BEAT * 2},
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/* Happy Birthday to you */
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{NOTE_G4, BEAT / 2}, {NOTE_G4, BEAT / 2}, {NOTE_A4, BEAT}, {NOTE_G4, BEAT},
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{NOTE_D5, BEAT}, {NOTE_C5, BEAT * 2},
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/* Happy Birthday dear friend */
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{NOTE_G4, BEAT / 2}, {NOTE_G4, BEAT / 2}, {NOTE_G5, BEAT}, {NOTE_E5, BEAT},
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{NOTE_C5, BEAT}, {NOTE_B4, BEAT}, {NOTE_A4, BEAT * 2},
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/* Happy Birthday to you */
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{NOTE_F5, BEAT / 2}, {NOTE_F5, BEAT / 2}, {NOTE_E5, BEAT}, {NOTE_C5, BEAT},
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{NOTE_D5, BEAT}, {NOTE_C5, BEAT * 2},
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/* 结尾留白 */
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{REST, BEAT * 2},
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};
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const uint32_t happy_birthday_count = ARRAY_SIZE(happy_birthday);
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/* 《Jingle Bells》(铃儿响叮当)
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* 1857年James Lord Pierpont创作，早已进入公有领域。
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* (下面是常见的简化版本，节奏为大致还原，供播放测试使用)
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*/
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const Note_t jingle_bells[] =
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{
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/* Jingle bells, jingle bells, jingle all the way */
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{NOTE_E4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT * 2},
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{NOTE_E4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT * 2},
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{NOTE_E4, BEAT}, {NOTE_G4, BEAT}, {NOTE_C4, BEAT}, {NOTE_D4, BEAT},
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{NOTE_E4, BEAT * 4},
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/* Oh what fun it is to ride in a one-horse open sleigh */
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{NOTE_F4, BEAT}, {NOTE_F4, BEAT}, {NOTE_F4, BEAT}, {NOTE_F4, BEAT},
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{NOTE_F4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT}, {NOTE_E4, BEAT / 2}, {NOTE_E4, BEAT / 2},
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{NOTE_E4, BEAT}, {NOTE_D4, BEAT}, {NOTE_D4, BEAT}, {NOTE_E4, BEAT},
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{NOTE_D4, BEAT * 2}, {NOTE_G4, BEAT * 2},
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/* 结尾留白 */
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{REST, BEAT * 2},
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};
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const uint32_t jingle_bells_count = ARRAY_SIZE(jingle_bells);
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/*
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*+----------------------------+
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*| PWM buzzer API |
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*+----------------------------+
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*/
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/**
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* @brief 设置蜂鸣器发声频率(占空比固定50%)
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*/
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static inline void Buzzer_SetFreq(uint32_t freq)
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{
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/* TIM1 初始化 PSC = 79，计数时钟 = 80MHz/80 = 1MHz */
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uint32_t arr = 1000000U / freq - 1U;
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__HAL_TIM_SET_AUTORELOAD(&htim1, arr);
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__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_4, arr / 2U);
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__HAL_TIM_SET_COUNTER(&htim1, 0);
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}
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/**
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* @brief 让蜂鸣器响 $times 次，每次间隔 $interval 毫秒
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*/
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void beep_start(uint16_t times, uint16_t interval)
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{
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Buzzer_SetFreq(2700);
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while( times-- )
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{
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/* Start buzzer */
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HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_4);
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HAL_Delay(interval);
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/* Stop buzzer */
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HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4);
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HAL_Delay(interval);
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}
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}
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/**
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* @brief 播放单个音符
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*/
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static void Buzzer_PlayNote(uint32_t freq, uint32_t duration_ms)
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{
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if (freq == 0)
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{
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HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4);
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HAL_Delay(duration_ms);
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return;
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}
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Buzzer_SetFreq(freq);
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HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_4);
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HAL_Delay(duration_ms - 30);
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HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4);
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HAL_Delay(30);
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}
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/**
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* @brief 播放歌曲
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*/
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void Play_Song(const Note_t *song, uint32_t note_count)
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{
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for (uint32_t i = 0; i < note_count; i++)
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{
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Buzzer_PlayNote(song[i].freq, song[i].duration);
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}
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}
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