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music
This commit is contained in:
parent
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144
Core/Inc/Sound.h
144
Core/Inc/Sound.h
@ -13,8 +13,6 @@
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// Define default timer and channels
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#define SOUND_TIMER TIM4
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#define SOUND_TIMER_RCC RCC_APB1ENR_TIM4EN
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#define SOUND_CHANNEL_1 3 // TIM4 Channel 3
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#define SOUND_CHANNEL_2 4 // TIM4 Channel 4
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// Define the Note structure
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typedef struct {
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@ -25,34 +23,142 @@ typedef struct {
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// Enum for musical notes
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typedef enum {
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NOTE_C4 = 261,
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NOTE_D4 = 293,
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NOTE_E4 = 329,
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NOTE_F4 = 349,
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NOTE_G4 = 392,
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NOTE_A4 = 440,
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NOTE_B4 = 493,
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NOTE_C5 = 523,
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// Add more notes as needed
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NOTE_REST = 0
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C0 = 16,
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C0_sharp = 17,
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D0 = 18,
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D0_sharp = 19,
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E0 = 21,
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F0 = 22,
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F0_sharp = 23,
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G0 = 25,
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G0_sharp = 26,
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A0 = 28,
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A0_sharp = 29,
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B0 = 31,
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C1 = 33,
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C1_sharp = 35,
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D1 = 37,
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D1_sharp = 39,
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E1 = 41,
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F1 = 44,
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F1_sharp = 46,
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G1 = 49,
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G1_sharp = 52,
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A1 = 55,
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A1_sharp = 58,
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B1 = 62,
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C2 = 65,
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C2_sharp = 69,
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D2 = 73,
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D2_sharp = 78,
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E2 = 82,
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F2 = 87,
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F2_sharp = 92,
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G2 = 98,
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G2_sharp = 104,
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A2 = 110,
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A2_sharp = 117,
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B2 = 123,
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C3 = 130,
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C3_sharp = 138,
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D3 = 146,
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D3_sharp = 155,
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E3 = 164,
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F3 = 174,
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F3_sharp = 185,
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G3 = 196,
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G3_sharp = 207,
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A3 = 220,
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A3_sharp = 233,
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B3 = 246,
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C4 = 261,
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C4_sharp = 277,
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D4 = 293,
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D4_sharp = 311,
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E4 = 329,
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F4 = 349,
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F4_sharp = 369,
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G4 = 392,
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G4_sharp = 415,
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A4 = 440,
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A4_sharp = 466,
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B4 = 493,
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C5 = 523,
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C5_sharp = 554,
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D5 = 587,
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D5_sharp = 622,
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E5 = 659,
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F5 = 698,
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F5_sharp = 740,
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G5 = 784,
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G5_sharp = 830,
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A5 = 880,
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A5_sharp = 932,
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B5 = 987,
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C6 = 1046,
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C6_sharp = 1108,
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D6 = 1174,
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D6_sharp = 1244,
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E6 = 1318,
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F6 = 1396,
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F6_sharp = 1480,
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G6 = 1568,
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G6_sharp = 1661,
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A6 = 1760,
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A6_sharp = 1864,
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B6 = 1975,
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C7 = 2093,
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C7_sharp = 2217,
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D7 = 2349,
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D7_sharp = 2489,
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E7 = 2637,
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F7 = 2793,
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F7_sharp = 2960,
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G7 = 3136,
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G7_sharp = 3322,
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A7 = 3520,
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A7_sharp = 3729,
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B7 = 3951,
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C8 = 4186,
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C8_sharp = 4435,
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D8 = 4699,
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D8_sharp = 4978
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} MusicalNote_t;
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// Enum for note durations (in fractions of a whole note)
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typedef enum {
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DURATION_WHOLE = 1,
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DURATION_HALF = 2,
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DURATION_QUARTER = 4,
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DURATION_EIGHTH = 8,
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DURATION_SIXTEENTH = 16
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// Add more durations as needed
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T0 = 0, // Infinite
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T1 = 1, // Whole note
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T2 = 2, // Half note
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T4 = 4, // Quarter note
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T8 = 8, // Eighth note
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T16 = 16 // Sixteenth note
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} NoteDuration_t;
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// Structure for melody playback
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typedef struct {
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Note_t* notes; // Pointer to an array of notes
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uint32_t size; // Number of notes in the melody
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uint32_t current_note; // Index of the current note
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uint32_t repeat_count; // Total repeat count
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uint32_t repeat_left; // Repeats left
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} Melody_t;
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// Function declarations
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void sound_init(void);
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void sound_set_bpm(uint32_t bpm);
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void sound_play_note(Note_t note, uint8_t channel);
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void sound_play_melody(Note_t* melody, uint32_t size, uint8_t channel, uint32_t repeat_count);
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void sound_tick(void);
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Note_t sound_create_note(MusicalNote_t note, NoteDuration_t duration, uint8_t duty_cycle);
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#endif /* INC_SOUND_H_ */
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201
Core/Src/Sound.c
201
Core/Src/Sound.c
@ -9,11 +9,13 @@
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#include "stm32f103xb.h"
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#include "SimpleTimer.h"
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static uint32_t bpm = 145; // Default BPM
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static uint32_t note_end_time_ch3 = 0; // End time for channel 3
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static uint32_t note_end_time_ch4 = 0; // End time for channel 4
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static Note_t current_note_ch3;
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static Note_t current_note_ch4;
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static uint32_t bpm = 120; // Default BPM
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static uint32_t note_end_time_ch[4] = {0, 0, 0, 0}; // End times for each channel (1-4)
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static Melody_t melodies[4]; // Array of melodies for each channel
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// Initialize the sound system
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#define SOUND_TIMER TIM4
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#define SOUND_TIMER_RCC RCC_APB1ENR_TIM4EN
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// Initialize the sound system
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void sound_init(void) {
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@ -23,53 +25,28 @@ void sound_init(void) {
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// Configure GPIO pins for timer output (assuming GPIOB pins for TIM4 CH3 and CH4)
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RCC->APB2ENR |= RCC_APB2ENR_IOPBEN;
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if (SOUND_CHANNEL_1 == 1 || SOUND_CHANNEL_1 == 2) {
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GPIOB->CRL &= ~(0xF << ((SOUND_CHANNEL_1 - 1) * 4)); // Clear
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GPIOB->CRL |= (0xB << ((SOUND_CHANNEL_1 - 1) * 4)); // Alternate function push-pull
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} else if (SOUND_CHANNEL_1 == 3 || SOUND_CHANNEL_1 == 4) {
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GPIOB->CRH &= ~(0xF << ((SOUND_CHANNEL_1 - 8) * 4)); // Clear
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GPIOB->CRH |= (0xB << ((SOUND_CHANNEL_1 - 8) * 4)); // Alternate function push-pull
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}
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// Configure only channels 3 and 4
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// Channel 3
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GPIOB->CRH &= ~(0xF << (3 * 4)); // Clear configuration for PB10 (TIM4_CH3)
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GPIOB->CRH |= (0xB << (3 * 4)); // Set to alternate function push-pull
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if (SOUND_CHANNEL_2 == 1 || SOUND_CHANNEL_2 == 2) {
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GPIOB->CRL &= ~(0xF << ((SOUND_CHANNEL_2 - 1) * 4)); // Clear
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GPIOB->CRL |= (0xB << ((SOUND_CHANNEL_2 - 1) * 4)); // Alternate function push-pull
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} else if (SOUND_CHANNEL_2 == 3 || SOUND_CHANNEL_2 == 4) {
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GPIOB->CRH &= ~(0xF << ((SOUND_CHANNEL_2 - 8) * 4)); // Clear
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GPIOB->CRH |= (0xB << ((SOUND_CHANNEL_2 - 8) * 4)); // Alternate function push-pull
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}
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// Channel 4
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GPIOB->CRH &= ~(0xF << (4 * 4)); // Clear configuration for PB11 (TIM4_CH4)
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GPIOB->CRH |= (0xB << (4 * 4)); // Set to alternate function push-pull
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// Initialize the timer for PWM output
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SOUND_TIMER->PSC = 0; // Will be set in sound_play_note()
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SOUND_TIMER->ARR = 0xFFFF; // Will be set in sound_play_note()
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SOUND_TIMER->PSC = 0;
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SOUND_TIMER->ARR = 0xFFFF;
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// Configure PWM mode on both channels
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if (SOUND_CHANNEL_1 == 3) {
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SOUND_TIMER->CCMR2 &= ~TIM_CCMR2_OC3M;
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SOUND_TIMER->CCMR2 |= (6 << TIM_CCMR2_OC3M_Pos); // PWM mode 1 for channel 3
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SOUND_TIMER->CCER |= TIM_CCER_CC3E; // Enable output on channel 3
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} else if (SOUND_CHANNEL_1 == 4) {
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SOUND_TIMER->CCMR2 &= ~TIM_CCMR2_OC4M;
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SOUND_TIMER->CCMR2 |= (6 << TIM_CCMR2_OC4M_Pos); // PWM mode 1 for channel 4
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SOUND_TIMER->CCER |= TIM_CCER_CC4E; // Enable output on channel 4
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// Configure only channels 3 and 4 for PWM output
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SOUND_TIMER->CCMR2 &= ~(TIM_CCMR2_OC3M | TIM_CCMR2_OC4M); // Clear channel 3 and 4 mode
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SOUND_TIMER->CCMR2 |= (6 << TIM_CCMR2_OC3M_Pos); // Set channel 3 to PWM mode 1
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SOUND_TIMER->CCER |= (TIM_CCER_CC3E | TIM_CCER_CC4E); // Enable output for channels 3 and 4
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SOUND_TIMER->EGR = TIM_EGR_UG; // Update the timer
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SOUND_TIMER->CR1 |= TIM_CR1_CEN; // Enable the timer
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}
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if (SOUND_CHANNEL_2 == 3) {
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SOUND_TIMER->CCMR2 &= ~TIM_CCMR2_OC3M;
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SOUND_TIMER->CCMR2 |= (6 << TIM_CCMR2_OC3M_Pos); // PWM mode 1 for channel 3
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SOUND_TIMER->CCER |= TIM_CCER_CC3E; // Enable output on channel 3
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} else if (SOUND_CHANNEL_2 == 4) {
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SOUND_TIMER->CCMR2 &= ~TIM_CCMR2_OC4M;
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SOUND_TIMER->CCMR2 |= (6 << TIM_CCMR2_OC4M_Pos); // PWM mode 1 for channel 4
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SOUND_TIMER->CCER |= TIM_CCER_CC4E; // Enable output on channel 4
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}
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// Generate an update event to reload the prescaler and ARR values
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SOUND_TIMER->EGR = TIM_EGR_UG;
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// Enable the timer
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SOUND_TIMER->CR1 |= TIM_CR1_CEN;
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}
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// Set BPM
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void sound_set_bpm(uint32_t new_bpm) {
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@ -78,96 +55,88 @@ void sound_set_bpm(uint32_t new_bpm) {
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// Play a note on a specific channel
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void sound_play_note(Note_t note, uint8_t channel) {
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if (channel == SOUND_CHANNEL_1) {
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current_note_ch3 = note;
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if (channel < 1 || channel > 4) return;
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uint32_t *ccr = &SOUND_TIMER->CCR1 + (channel - 1); // Select correct CCR for the channel
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uint32_t *ccmr = (channel <= 2) ? &SOUND_TIMER->CCMR1 : &SOUND_TIMER->CCMR2;
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uint32_t *ccer = &SOUND_TIMER->CCER;
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uint32_t enable_cc = TIM_CCER_CC1E << ((channel - 1) * 4);
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if (note.frequency == 0) {
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// Pause on channel 3
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SOUND_TIMER->CCER &= ~TIM_CCER_CC3E; // Disable output on channel 3
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note_end_time_ch3 = millis() + note.duration;
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*ccer &= ~enable_cc;
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note_end_time_ch[channel - 1] = millis() + note.duration;
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} else {
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// Configure frequency and duty cycle for channel 3
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uint32_t timer_clock = SystemCoreClock / 2; // Assuming APB1 prescaler is 2
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uint32_t timer_clock = SystemCoreClock / 2;
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uint32_t prescaler = (timer_clock / (note.frequency * 65536)) + 1;
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uint32_t arr = (timer_clock / (prescaler * note.frequency)) - 1;
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uint32_t ccr = ((arr + 1) * note.duty_cycle) / 100 - 1;
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uint32_t ccr_val = ((arr + 1) * note.duty_cycle) / 100 - 1;
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SOUND_TIMER->PSC = prescaler - 1;
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SOUND_TIMER->ARR = arr;
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SOUND_TIMER->CCR3 = ccr;
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*ccr = ccr_val;
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// Configure PWM mode for channel 3
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SOUND_TIMER->CCMR2 &= ~(TIM_CCMR2_OC3M | TIM_CCMR2_OC3PE);
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SOUND_TIMER->CCMR2 |= (TIM_CCMR2_OC3M_1 | TIM_CCMR2_OC3M_2 | TIM_CCMR2_OC3PE); // PWM mode 1
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*ccmr &= ~(TIM_CCMR1_OC1M << ((channel - 1) * 8));
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*ccmr |= (6 << TIM_CCMR1_OC1M_Pos) << ((channel - 1) * 8);
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SOUND_TIMER->CCER |= TIM_CCER_CC3E; // Enable output on channel 3
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SOUND_TIMER->EGR = TIM_EGR_UG; // Update registers
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SOUND_TIMER->CR1 |= TIM_CR1_CEN; // Enable timer
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*ccer |= enable_cc;
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SOUND_TIMER->EGR = TIM_EGR_UG;
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SOUND_TIMER->CR1 |= TIM_CR1_CEN;
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if (note.duration == 0) {
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note_end_time_ch3 = 0; // Infinite duration
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note_end_time_ch[channel - 1] = (note.duration == 0) ? 0 : millis() + note.duration;
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}
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}
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// Play a melody on a specific channel with repeat count
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void sound_play_melody(Note_t* melody, uint32_t size, uint8_t channel, uint32_t repeat_count) {
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if (channel < 1 || channel > 4 || melody == NULL || size == 0) return;
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uint8_t ch_idx = channel - 1;
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melodies[ch_idx].notes = melody;
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melodies[ch_idx].size = size;
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melodies[ch_idx].current_note = 0;
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melodies[ch_idx].repeat_count = repeat_count;
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melodies[ch_idx].repeat_left = repeat_count;
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sound_play_note(melody[0], channel); // Play the first note
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}
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// Function to play the next note in the melody for a specific channel
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void play_next_note(uint8_t channel) {
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uint8_t ch_idx = channel - 1;
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Melody_t* melody = &melodies[ch_idx];
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if (melody->current_note >= melody->size) {
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// If end of melody, check repeat
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if (melody->repeat_left > 0) {
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melody->repeat_left--;
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melody->current_note = 0; // Restart melody
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} else {
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note_end_time_ch3 = millis() + note.duration;
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// Melody finished, no more repeats
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melody->notes = NULL;
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return;
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}
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}
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} else if (channel == SOUND_CHANNEL_2) {
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current_note_ch4 = note;
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if (note.frequency == 0) {
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// Pause on channel 4
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SOUND_TIMER->CCER &= ~TIM_CCER_CC4E; // Disable output on channel 4
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note_end_time_ch4 = millis() + note.duration;
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} else {
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// Configure frequency and duty cycle for channel 4
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uint32_t timer_clock = SystemCoreClock / 2; // Assuming APB1 prescaler is 2
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uint32_t prescaler = (timer_clock / (note.frequency * 65536)) + 1;
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uint32_t arr = (timer_clock / (prescaler * note.frequency)) - 1;
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uint32_t ccr = ((arr + 1) * note.duty_cycle) / 100 - 1;
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SOUND_TIMER->PSC = prescaler - 1;
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SOUND_TIMER->ARR = arr;
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SOUND_TIMER->CCR4 = ccr;
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// Configure PWM mode for channel 4
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SOUND_TIMER->CCMR2 &= ~(TIM_CCMR2_OC4M | TIM_CCMR2_OC4PE);
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SOUND_TIMER->CCMR2 |= (TIM_CCMR2_OC4M_1 | TIM_CCMR2_OC4M_2 | TIM_CCMR2_OC4PE); // PWM mode 1
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SOUND_TIMER->CCER |= TIM_CCER_CC4E; // Enable output on channel 4
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SOUND_TIMER->EGR = TIM_EGR_UG; // Update registers
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SOUND_TIMER->CR1 |= TIM_CR1_CEN; // Enable timer
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if (note.duration == 0) {
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note_end_time_ch4 = 0; // Infinite duration
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} else {
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note_end_time_ch4 = millis() + note.duration;
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}
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}
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}
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sound_play_note(melody->notes[melody->current_note], channel);
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melody->current_note++;
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}
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// Function to be called periodically to handle note duration
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void sound_tick(void) {
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if (note_end_time_ch3 != 0 && millis() >= note_end_time_ch3) {
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// Stop the note on channel 3
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SOUND_TIMER->CCER &= ~TIM_CCER_CC3E; // Disable output on channel 3
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note_end_time_ch3 = 0;
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for (uint8_t ch = 0; ch < 4; ++ch) {
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if (note_end_time_ch[ch] != 0 && millis() >= note_end_time_ch[ch]) {
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SOUND_TIMER->CCER &= ~(TIM_CCER_CC1E << (ch * 4)); // Disable output
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note_end_time_ch[ch] = 0;
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if (melodies[ch].notes != NULL) {
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play_next_note(ch + 1); // Play next note for channel
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}
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}
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if (note_end_time_ch4 != 0 && millis() >= note_end_time_ch4) {
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// Stop the note on channel 4
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SOUND_TIMER->CCER &= ~TIM_CCER_CC4E; // Disable output on channel 4
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note_end_time_ch4 = 0;
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}
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}
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// Create a Note_t from musical note and duration enums
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Note_t sound_create_note(MusicalNote_t note_enum, NoteDuration_t duration_enum, uint8_t duty_cycle) {
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Note_t result_note;
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result_note.frequency = note_enum;
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if (duration_enum == 0) {
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result_note.duration = 0; // Infinite duration
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} else {
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// Calculate duration in milliseconds
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uint32_t whole_note_duration = (60000 / bpm) * 4; // Duration of whole note in ms
|
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result_note.duration = whole_note_duration / duration_enum;
|
||||
}
|
||||
result_note.duty_cycle = duty_cycle;
|
||||
return result_note;
|
||||
// Create a note
|
||||
Note_t sound_create_note(MusicalNote_t note, NoteDuration_t duration, uint8_t duty_cycle) {
|
||||
uint32_t note_duration = (duration == T0) ? 0 : (60000 * 4 / (bpm * duration));
|
||||
return (Note_t){ .frequency = note, .duration = note_duration, .duty_cycle = duty_cycle };
|
||||
}
|
||||
|
||||
111
Core/Src/main.c
111
Core/Src/main.c
@ -208,6 +208,113 @@ int main(void)
|
||||
return "UNKNOWN";
|
||||
}
|
||||
}
|
||||
|
||||
sound_set_bpm(147);
|
||||
Note_t melody[] = {
|
||||
sound_create_note(C0, T16, 50),
|
||||
sound_create_note(C0_sharp, T16, 50),
|
||||
sound_create_note(D0, T16, 50),
|
||||
sound_create_note(D0_sharp, T16, 50),
|
||||
sound_create_note(E0, T16, 50),
|
||||
sound_create_note(F0, T16, 50),
|
||||
sound_create_note(F0_sharp, T16, 50),
|
||||
sound_create_note(G0, T16, 50),
|
||||
sound_create_note(G0_sharp, T16, 50),
|
||||
sound_create_note(A0, T16, 50),
|
||||
sound_create_note(A0_sharp, T16, 50),
|
||||
sound_create_note(B0, T16, 50),
|
||||
sound_create_note(C1, T16, 50),
|
||||
sound_create_note(C1_sharp, T16, 50),
|
||||
sound_create_note(D1, T16, 50),
|
||||
sound_create_note(D1_sharp, T16, 50),
|
||||
sound_create_note(E1, T16, 50),
|
||||
sound_create_note(F1, T16, 50),
|
||||
sound_create_note(F1_sharp, T16, 50),
|
||||
sound_create_note(G1, T16, 50),
|
||||
sound_create_note(G1_sharp, T16, 50),
|
||||
sound_create_note(A1, T16, 50),
|
||||
sound_create_note(A1_sharp, T16, 50),
|
||||
sound_create_note(B1, T16, 50),
|
||||
sound_create_note(C2, T16, 50),
|
||||
sound_create_note(C2_sharp, T16, 50),
|
||||
sound_create_note(D2, T16, 50),
|
||||
sound_create_note(D2_sharp, T16, 50),
|
||||
sound_create_note(E2, T16, 50),
|
||||
sound_create_note(F2, T16, 50),
|
||||
sound_create_note(F2_sharp, T16, 50),
|
||||
sound_create_note(G2, T16, 50),
|
||||
sound_create_note(G2_sharp, T16, 50),
|
||||
sound_create_note(A2, T16, 50),
|
||||
sound_create_note(A2_sharp, T16, 50),
|
||||
sound_create_note(B2, T16, 50),
|
||||
sound_create_note(C3, T16, 50),
|
||||
sound_create_note(C3_sharp, T16, 50),
|
||||
sound_create_note(D3, T16, 50),
|
||||
sound_create_note(D3_sharp, T16, 50),
|
||||
sound_create_note(E3, T16, 50),
|
||||
sound_create_note(F3, T16, 50),
|
||||
sound_create_note(F3_sharp, T16, 50),
|
||||
sound_create_note(G3, T16, 50),
|
||||
sound_create_note(G3_sharp, T16, 50),
|
||||
sound_create_note(A3, T16, 50),
|
||||
sound_create_note(A3_sharp, T16, 50),
|
||||
sound_create_note(B3, T16, 50),
|
||||
sound_create_note(C4, T16, 50),
|
||||
sound_create_note(C4_sharp, T16, 50),
|
||||
sound_create_note(D4, T16, 50),
|
||||
sound_create_note(D4_sharp, T16, 50),
|
||||
sound_create_note(E4, T16, 50),
|
||||
sound_create_note(F4, T16, 50),
|
||||
sound_create_note(F4_sharp, T16, 50),
|
||||
sound_create_note(G4, T16, 50),
|
||||
sound_create_note(G4_sharp, T16, 50),
|
||||
sound_create_note(A4, T16, 50),
|
||||
sound_create_note(A4_sharp, T16, 50),
|
||||
sound_create_note(B4, T16, 50),
|
||||
sound_create_note(C5, T16, 50),
|
||||
sound_create_note(C5_sharp, T16, 50),
|
||||
sound_create_note(D5, T16, 50),
|
||||
sound_create_note(D5_sharp, T16, 50),
|
||||
sound_create_note(E5, T16, 50),
|
||||
sound_create_note(F5, T16, 50),
|
||||
sound_create_note(F5_sharp, T16, 50),
|
||||
sound_create_note(G5, T16, 50),
|
||||
sound_create_note(G5_sharp, T16, 50),
|
||||
sound_create_note(A5, T16, 50),
|
||||
sound_create_note(A5_sharp, T16, 50),
|
||||
sound_create_note(B5, T16, 50),
|
||||
sound_create_note(C6, T16, 50),
|
||||
sound_create_note(C6_sharp, T16, 50),
|
||||
sound_create_note(D6, T16, 50),
|
||||
sound_create_note(D6_sharp, T16, 50),
|
||||
sound_create_note(E6, T16, 50),
|
||||
sound_create_note(F6, T16, 50),
|
||||
sound_create_note(F6_sharp, T16, 50),
|
||||
sound_create_note(G6, T16, 50),
|
||||
sound_create_note(G6_sharp, T16, 50),
|
||||
sound_create_note(A6, T16, 50),
|
||||
sound_create_note(A6_sharp, T16, 50),
|
||||
sound_create_note(B6, T16, 50),
|
||||
sound_create_note(C7, T16, 50),
|
||||
sound_create_note(C7_sharp, T16, 50),
|
||||
sound_create_note(D7, T16, 50),
|
||||
sound_create_note(D7_sharp, T16, 50),
|
||||
sound_create_note(E7, T16, 50),
|
||||
sound_create_note(F7, T16, 50),
|
||||
sound_create_note(F7_sharp, T16, 50),
|
||||
sound_create_note(G7, T16, 50),
|
||||
sound_create_note(G7_sharp, T16, 50),
|
||||
sound_create_note(A7, T16, 50),
|
||||
sound_create_note(A7_sharp, T16, 50),
|
||||
sound_create_note(B7, T16, 50),
|
||||
sound_create_note(C8, T16, 50),
|
||||
sound_create_note(C8_sharp, T16, 50),
|
||||
sound_create_note(D8, T16, 50)
|
||||
};
|
||||
|
||||
|
||||
sound_play_melody(melody, sizeof(melody)/sizeof(melody), 3, 1);
|
||||
|
||||
while (1) {
|
||||
|
||||
IR_CMD_Handler();
|
||||
@ -240,10 +347,6 @@ int main(void)
|
||||
CDC_Transmit_FS((uint8_t*)buffer, strlen(buffer));
|
||||
|
||||
|
||||
Note_t note = sound_create_note(NOTE_C4, DURATION_EIGHTH, 50);
|
||||
sound_play_note(note, SOUND_CHANNEL_1);
|
||||
|
||||
|
||||
}
|
||||
|
||||
/* USER CODE END WHILE */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user