用于计算定时器初值
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other/csv2json.py
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other/csv2json.py
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#coding=utf-8
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import csv
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import json
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# 文件路径
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file_path = 'note_data.txt'
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# 读取文件并转换为 JSON
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notes_dict = {}
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with open(file_path, mode='r', encoding='utf-8') as file:
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reader = csv.DictReader(file, delimiter='\t')
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for row in reader:
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note, frequency, wave_length = row['note'], row['frequency'], row['wave_length']
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notes_dict[note] = {'frequency': float(frequency), 'wave_length': float(wave_length)}
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# 将数据转换为 JSON 并打印
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json_data = json.dumps(notes_dict, indent=4)
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print(json_data)
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# 写入 JSON 文件
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with open('note_data.json', 'w', encoding='utf-8') as json_file:
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json_file.write(json_data)
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66
other/note.py
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66
other/note.py
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#coding=utf-8
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import json
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# 常量定义
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MCU_CLK = 1000000 # 12MHz，内部时钟12分频
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MCU_T = 1000000/MCU_CLK # 单位时间为1us
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# 音符映射
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note_mapping = {
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1: 'C4', 2: 'D4', 3: 'E4', 4: 'F4', 5: 'G4', 6: 'A4', 7: 'B4'
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}
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# 根据频率计算计数器初值
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def freq_to_num(freq):
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T = 10**6/freq # 单位时间为1us
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time0 = int(2**16 - (T/2) / MCU_T)
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time0H = hex(time0>>8)
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time0L = hex(time0&0xff)
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print("freq = %0.2fHz, T = %dus, time0 = %d, time0H = %s, time0L = %s" % (freq, T, time0, time0H, time0L))
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return time0H, time0L
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# 根据音符名称获取频率
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def note_to_freq(note_name):
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try:
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# 读取 JSON 文件
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with open('note_data.json', 'r') as file:
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notes = json.load(file)
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# 获取特定音符的频率
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frequency = notes[note_name]['frequency']
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return frequency
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except KeyError:
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return None
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except Exception as e:
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print(f"An error occurred: {e}")
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return None
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# 根据音符名称获取计数器初值
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def note_to_num(note_name):
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frequency = note_to_freq(note_name.upper())
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if frequency is not None:
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print(f"{note_name}的频率为{frequency}Hz。")
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freq_to_num(frequency)
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else:
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print(f"{note_name} 不是有效的音符。")
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# 转换函数
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def map_tones_to_notes(tone_array):
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notes = []
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for tone in tone_array:
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# 将音调映射到相应的音符
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note = note_mapping.get((tone - 1) % 7 + 1 if tone <= 7 else (tone - 1) % 7 + 8)
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notes.append(note)
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return notes
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# 原始数据：小星星歌曲
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soundtones = [
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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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]
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if __name__ == '__main__':
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mapped_notes = map_tones_to_notes(soundtones)
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for note in mapped_notes:
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note_to_num(note)
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342
other/note_data.json
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other/note_data.json
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{
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"C0": {
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"frequency": 16.35,
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"wave_length": 2109.89
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},
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"C#0": {
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"frequency": 17.32,
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"wave_length": 1991.47
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},
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"D0": {
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"frequency": 18.35,
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"wave_length": 1879.69
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},
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"D#0": {
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"frequency": 19.45,
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"wave_length": 1774.2
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},
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"E0": {
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"frequency": 20.6,
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"wave_length": 1674.62
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},
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"F0": {
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"frequency": 21.83,
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"wave_length": 1580.63
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},
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"F#0": {
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"frequency": 23.12,
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"wave_length": 1491.91
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},
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"G0": {
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"frequency": 24.5,
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"wave_length": 1408.18
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},
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"G#0": {
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"frequency": 25.96,
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"wave_length": 1329.14
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},
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"A0": {
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"frequency": 27.5,
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"wave_length": 1254.55
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},
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"A#0": {
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"frequency": 29.14,
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"wave_length": 1184.13
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},
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"B0": {
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"frequency": 30.87,
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"wave_length": 1117.67
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},
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"C1": {
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"frequency": 32.7,
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"wave_length": 1054.94
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},
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"C#1": {
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"frequency": 34.65,
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"wave_length": 995.73
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},
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"D1": {
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"frequency": 36.71,
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"wave_length": 939.85
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},
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"D#1": {
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"frequency": 38.89,
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"wave_length": 887.1
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},
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"E1": {
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"frequency": 41.2,
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"wave_length": 837.31
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},
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"F1": {
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"frequency": 43.65,
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"wave_length": 790.31
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},
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"F#1": {
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"frequency": 46.25,
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"wave_length": 745.96
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},
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"G1": {
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"frequency": 49.0,
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"wave_length": 704.09
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},
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"G#1": {
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"frequency": 51.91,
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"wave_length": 664.57
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},
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"A1": {
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"frequency": 55.0,
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"wave_length": 627.27
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},
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"A#1": {
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"frequency": 58.27,
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"wave_length": 592.07
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},
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"B1": {
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"frequency": 61.74,
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"wave_length": 558.84
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},
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"C2": {
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"frequency": 65.41,
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"wave_length": 527.47
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},
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"C#2": {
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"frequency": 69.3,
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"wave_length": 497.87
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},
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"D2": {
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"frequency": 73.42,
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"wave_length": 469.92
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},
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"D#2": {
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"frequency": 77.78,
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"wave_length": 443.55
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},
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"E2": {
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"frequency": 82.41,
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"wave_length": 418.65
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},
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"F2": {
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"frequency": 87.31,
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"wave_length": 395.16
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},
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"F#2": {
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"frequency": 92.5,
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"wave_length": 372.98
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},
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"G2": {
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"frequency": 98.0,
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"wave_length": 352.04
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},
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"G#2": {
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"frequency": 103.83,
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"wave_length": 332.29
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},
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"A2": {
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"frequency": 110.0,
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"wave_length": 313.64
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},
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"A#2": {
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"frequency": 116.54,
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"wave_length": 296.03
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},
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"B2": {
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"frequency": 123.47,
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"wave_length": 279.42
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},
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"C3": {
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"frequency": 130.81,
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"wave_length": 263.74
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},
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"C#3": {
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"frequency": 138.59,
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"wave_length": 248.93
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},
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"D3": {
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"frequency": 146.83,
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"wave_length": 234.96
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},
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"D#3": {
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"frequency": 155.56,
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"wave_length": 221.77
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},
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"E3": {
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"frequency": 164.81,
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"wave_length": 209.33
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},
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"F3": {
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"frequency": 174.61,
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"wave_length": 197.58
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},
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"F#3": {
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"frequency": 185.0,
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"wave_length": 186.49
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},
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"G3": {
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"frequency": 196.0,
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"wave_length": 176.02
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},
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"G#3": {
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"frequency": 207.65,
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"wave_length": 166.14
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},
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"A3": {
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"frequency": 220.0,
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"wave_length": 156.82
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},
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"A#3": {
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"frequency": 233.08,
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"wave_length": 148.02
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},
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"B3": {
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"frequency": 246.94,
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"wave_length": 139.71
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},
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"C4": {
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"frequency": 261.63,
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"wave_length": 131.87
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},
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"C#4": {
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"frequency": 277.18,
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"wave_length": 124.47
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},
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"D4": {
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"frequency": 293.66,
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"wave_length": 117.48
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},
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"D#4": {
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"frequency": 311.13,
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"wave_length": 110.89
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},
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"E4": {
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"frequency": 329.63,
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"wave_length": 104.66
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},
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"F4": {
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"frequency": 349.23,
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"wave_length": 98.79
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},
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"F#4": {
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"frequency": 369.99,
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"wave_length": 93.24
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},
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"G4": {
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"frequency": 392.0,
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"wave_length": 88.01
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},
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"G#4": {
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"frequency": 415.3,
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"wave_length": 83.07
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},
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"A4": {
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"frequency": 440.0,
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"wave_length": 78.41
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},
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"A#4": {
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"frequency": 466.16,
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"wave_length": 74.01
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},
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"B4": {
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"frequency": 493.88,
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"wave_length": 69.85
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},
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"C5": {
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"frequency": 523.25,
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"wave_length": 65.93
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},
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"C#5": {
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"frequency": 554.37,
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"wave_length": 62.23
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},
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"D5": {
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"frequency": 587.33,
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"wave_length": 58.74
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},
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"D#5": {
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"frequency": 622.25,
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"wave_length": 55.44
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},
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"E5": {
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"frequency": 659.25,
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"wave_length": 52.33
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},
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"F5": {
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"frequency": 698.46,
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"wave_length": 49.39
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},
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"F#5": {
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"frequency": 739.99,
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"wave_length": 46.62
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},
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"G5": {
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"frequency": 783.99,
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"wave_length": 44.01
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},
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"G#5": {
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"frequency": 830.61,
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"wave_length": 41.54
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},
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"A5": {
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"frequency": 880.0,
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"wave_length": 39.2
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},
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"A#5": {
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"frequency": 932.33,
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"wave_length": 37.0
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},
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"B5": {
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"frequency": 987.77,
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"wave_length": 34.93
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},
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"C6": {
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"frequency": 1046.5,
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"wave_length": 32.97
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},
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"C#6": {
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"frequency": 1108.73,
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"wave_length": 31.12
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},
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"D6": {
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"frequency": 1174.66,
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"wave_length": 29.37
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},
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"D#6": {
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"frequency": 1244.51,
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"wave_length": 27.72
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},
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"E6": {
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"frequency": 1318.51,
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"wave_length": 26.17
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},
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"F6": {
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"frequency": 1396.91,
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"wave_length": 24.7
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},
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"F#6": {
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"frequency": 1479.98,
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"wave_length": 23.31
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},
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"G6": {
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"frequency": 1567.98,
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"wave_length": 22.0
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},
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"G#6": {
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"frequency": 1661.22,
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"wave_length": 20.77
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},
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"A6": {
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"frequency": 1760.0,
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"wave_length": 19.6
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},
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"A#6": {
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"frequency": 1864.66,
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"wave_length": 18.5
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},
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"B6": {
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"frequency": 1975.53,
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"wave_length": 17.46
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},
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"C7": {
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"frequency": 2093.0,
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"wave_length": 1.0
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}
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}
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86
other/note_data.txt
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86
other/note_data.txt
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note frequency wave_length
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C0 16.35 2109.89
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C#0 17.32 1991.47
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D0 18.35 1879.69
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D#0 19.45 1774.2
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E0 20.60 1674.62
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F0 21.83 1580.63
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F#0 23.12 1491.91
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G0 24.50 1408.18
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G#0 25.96 1329.14
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A0 27.50 1254.55
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A#0 29.14 1184.13
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B0 30.87 1117.67
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C1 32.70 1054.94
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C#1 34.65 995.73
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D1 36.71 939.85
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D#1 38.89 887.1
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E1 41.20 837.31
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F1 43.65 790.31
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F#1 46.25 745.96
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G1 49.00 704.09
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G#1 51.91 664.57
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A1 55.00 627.27
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A#1 58.27 592.07
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B1 61.74 558.84
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C2 65.41 527.47
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C#2 69.30 497.87
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D2 73.42 469.92
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D#2 77.78 443.55
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E2 82.41 418.65
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F2 87.31 395.16
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F#2 92.50 372.98
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G2 98.00 352.04
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G#2 103.83 332.29
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A2 110.00 313.64
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A#2 116.54 296.03
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B2 123.47 279.42
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C3 130.81 263.74
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C#3 138.59 248.93
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D3 146.83 234.96
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D#3 155.56 221.77
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E3 164.81 209.33
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F3 174.61 197.58
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F#3 185.00 186.49
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G3 196.00 176.02
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G#3 207.65 166.14
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A3 220.00 156.82
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A#3 233.08 148.02
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B3 246.94 139.71
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C4 261.63 131.87
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C#4 277.18 124.47
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D4 293.66 117.48
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D#4 311.13 110.89
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E4 329.63 104.66
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F4 349.23 98.79
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F#4 369.99 93.24
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G4 392.00 88.01
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G#4 415.30 83.07
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A4 440.00 78.41
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A#4 466.16 74.01
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B4 493.88 69.85
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C5 523.25 65.93
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C#5 554.37 62.23
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D5 587.33 58.74
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D#5 622.25 55.44
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E5 659.25 52.33
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F5 698.46 49.39
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F#5 739.99 46.62
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G5 783.99 44.01
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G#5 830.61 41.54
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A5 880.00 39.2
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A#5 932.33 37
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B5 987.77 34.93
|
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C6 1046.50 32.97
|
||||
C#6 1108.73 31.12
|
||||
D6 1174.66 29.37
|
||||
D#6 1244.51 27.72
|
||||
E6 1318.51 26.17
|
||||
F6 1396.91 24.7
|
||||
F#6 1479.98 23.31
|
||||
G6 1567.98 22
|
||||
G#6 1661.22 20.77
|
||||
A6 1760.00 19.6
|
||||
A#6 1864.66 18.5
|
||||
B6 1975.53 17.46
|
||||
C7 2093.00 1
|
||||
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Reference in New Issue
Block a user