Yuu Kobayashi / Mbed 2 deprecated NuFM401

Nucleo F401REでFM音源を実装するやつ 外部DACとオペアンプを利用 現在はMCP4922とNJM2737

Dependencies:   AOTTrigon I2CEEPROM MCP4922 AQM0802A mbed

Fork of NuMidi401 by Yuu Kobayashi

NuFM401

Nucleo F401用の自作ソフトウェアMIDI音源

概要

だいたいそんなもんです。

特徴

  • ブレッドボードの上で組める程度には簡単な回路構成
  • 外部のDACにMCP4922を採用
  • 念のためのボルテージフォロアとしてNJM2737Dを採用
  • バンク用EEPROMに24FC1025を採用
  • シリアル経由でMIDIデータを受信することで操作

補足

シリアル <=> MIDI のドライバにはHairless-MIDISerialをオススメします。 仮想MIDIケーブルはとりあえずMIDI Yokeで。

MIDIUtil.cpp

Committer:
kb10uy
Date:
2014-12-29
Revision:
10:0ffdefe75566
Parent:
7:439c57c20593

File content as of revision 10:0ffdefe75566:


float notenumfreqs[]={
    8.175799f,
    8.661957f,
    9.177024f,
    9.722718f,
    10.300861f,
    10.913382f,
    11.562326f,
    12.249857f,
    12.978272f,
    13.750000f,
    14.567618f,
    15.433853f,
    16.351598f,
    17.323914f,
    18.354048f,
    19.445436f,
    20.601722f,
    21.826764f,
    23.124651f,
    24.499715f,
    25.956544f,
    27.500000f,
    29.135235f,
    30.867706f,
    32.703196f,
    34.647829f,
    36.708096f,
    38.890873f,
    41.203445f,
    43.653529f,
    46.249303f,
    48.999429f,
    51.913087f,
    55.000000f,
    58.270470f,
    61.735413f,
    65.406391f,
    69.295658f,
    73.416192f,
    77.781746f,
    82.406889f,
    87.307058f,
    92.498606f,
    97.998859f,
    103.826174f,
    110.000000f,
    116.540940f,
    123.470825f,
    130.812783f,
    138.591315f,
    146.832384f,
    155.563492f,
    164.813778f,
    174.614116f,
    184.997211f,
    195.997718f,
    207.652349f,
    220.000000f,
    233.081881f,
    246.941651f,
    261.625565f,
    277.182631f,
    293.664768f,
    311.126984f,
    329.627557f,
    349.228231f,
    369.994423f,
    391.995436f,
    415.304698f,
    440.000000f,
    466.163762f,
    493.883301f,
    523.251131f,
    554.365262f,
    587.329536f,
    622.253967f,
    659.255114f,
    698.456463f,
    739.988845f,
    783.990872f,
    830.609395f,
    880.000000f,
    932.327523f,
    987.766603f,
    1046.502261f,
    1108.730524f,
    1174.659072f,
    1244.507935f,
    1318.510228f,
    1396.912926f,
    1479.977691f,
    1567.981744f,
    1661.218790f,
    1760.000000f,
    1864.655046f,
    1975.533205f,
    2093.004522f,
    2217.461048f,
    2349.318143f,
    2489.015870f,
    2637.020455f,
    2793.825851f,
    2959.955382f,
    3135.963488f,
    3322.437581f,
    3520.000000f,
    3729.310092f,
    3951.066410f,
    4186.009045f,
    4434.922096f,
    4698.636287f,
    4978.031740f,
    5274.040911f,
    5587.651703f,
    5919.910763f,
    6271.926976f,
    6644.875161f,
    7040.000000f,
    7458.620184f,
    7902.132820f,
    8372.018090f,
    8869.844191f,
    9397.272573f,
    9956.063479f,
    10548.081821f,
    11175.303406f,
    11839.821527f,
    12543.853951f
};