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。

FMOscillator/MIDIChannel.cpp@22:500b4f2953fa, 2015-01-31 (annotated)

Committer:
kb10uy
Date:
Sat Jan 31 10:17:22 2015 +0000
Revision:
22:500b4f2953fa
Parent:
21:e3014c1bdf9c
Child:
23:deb76bdf6f03
NRPN?????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kb10uy 17:2e577c6000cf 1 #include "MIDIChannel.h"
kb10uy 17:2e577c6000cf 2
kb10uy 17:2e577c6000cf 3 MIDIChannel::MIDIChannel()
kb10uy 17:2e577c6000cf 4 {
kb10uy 21:e3014c1bdf9c 5
kb10uy 21:e3014c1bdf9c 6 }
kb10uy 21:e3014c1bdf9c 7
kb10uy 21:e3014c1bdf9c 8 MIDIChannel::MIDIChannel(AQM0802A *l)
kb10uy 21:e3014c1bdf9c 9 {
kb10uy 17:2e577c6000cf 10 modulation = 0;
kb10uy 17:2e577c6000cf 11 portamentoTime = 0;
kb10uy 17:2e577c6000cf 12 portamento = false;
kb10uy 17:2e577c6000cf 13 volume = 127;
kb10uy 17:2e577c6000cf 14 panpot = 64;
kb10uy 17:2e577c6000cf 15 expression = 127;
kb10uy 17:2e577c6000cf 16 hold1 = false;
kb10uy 19:f0dcf591c5dd 17 dataEntryMSB = 0;
kb10uy 19:f0dcf591c5dd 18 dataEntryLSB = 0;
kb10uy 19:f0dcf591c5dd 19 nrpnMSB = 0;
kb10uy 19:f0dcf591c5dd 20 nrpnLSB = 0;
kb10uy 19:f0dcf591c5dd 21 rpnMSB = 0;
kb10uy 19:f0dcf591c5dd 22 rpnLSB = 0;
kb10uy 19:f0dcf591c5dd 23 algo = NULL;
kb10uy 19:f0dcf591c5dd 24 state = Undefined;
kb10uy 21:e3014c1bdf9c 25 lcd = l;
kb10uy 22:500b4f2953fa 26 nrpnStateSetter.attach(this, &MIDIChannel::setStateNRPNUndefined);
kb10uy 22:500b4f2953fa 27 nrpnStateProcessor.attach(this, &MIDIChannel::nrpnUndefined);
kb10uy 19:f0dcf591c5dd 28 }
kb10uy 19:f0dcf591c5dd 29
kb10uy 19:f0dcf591c5dd 30 MIDIChannel::~MIDIChannel()
kb10uy 19:f0dcf591c5dd 31 {
kb10uy 19:f0dcf591c5dd 32 if (algo != NULL) delete algo;
kb10uy 19:f0dcf591c5dd 33 }
kb10uy 19:f0dcf591c5dd 34
kb10uy 21:e3014c1bdf9c 35 void MIDIChannel::noteOn(char key, char vel, double time) {
kb10uy 21:e3014c1bdf9c 36 prkey = key;
kb10uy 21:e3014c1bdf9c 37 algo->noteOn(getNoteNumberFrequency(prkey), time);
kb10uy 21:e3014c1bdf9c 38 }
kb10uy 21:e3014c1bdf9c 39
kb10uy 21:e3014c1bdf9c 40 void MIDIChannel::noteOff(char key, double time) {
kb10uy 21:e3014c1bdf9c 41 if (prkey != key) return;
kb10uy 21:e3014c1bdf9c 42 algo->noteOff(time);
kb10uy 21:e3014c1bdf9c 43 }
kb10uy 21:e3014c1bdf9c 44
kb10uy 19:f0dcf591c5dd 45 void MIDIChannel::setDataEntryMSB(char msb)
kb10uy 19:f0dcf591c5dd 46 {
kb10uy 19:f0dcf591c5dd 47 dataEntryMSB = msb;
kb10uy 22:500b4f2953fa 48 if (state == NRPNSingleData || state == RPNSingleData) nrpnStateProcessor.call();
kb10uy 19:f0dcf591c5dd 49 }
kb10uy 19:f0dcf591c5dd 50
kb10uy 19:f0dcf591c5dd 51 void MIDIChannel::setDataEntryLSB(char lsb)
kb10uy 19:f0dcf591c5dd 52 {
kb10uy 19:f0dcf591c5dd 53 dataEntryLSB = lsb;
kb10uy 22:500b4f2953fa 54 if (state == NRPNDoubleData || state == RPNDoubleData) nrpnStateProcessor.call();
kb10uy 19:f0dcf591c5dd 55 }
kb10uy 19:f0dcf591c5dd 56
kb10uy 19:f0dcf591c5dd 57 void MIDIChannel::setNRPNMSB(char msb)
kb10uy 19:f0dcf591c5dd 58 {
kb10uy 19:f0dcf591c5dd 59 nrpnMSB = msb;
kb10uy 22:500b4f2953fa 60 setNRPNFunctions();
kb10uy 19:f0dcf591c5dd 61 }
kb10uy 19:f0dcf591c5dd 62
kb10uy 19:f0dcf591c5dd 63 void MIDIChannel::setNRPNLSB(char lsb)
kb10uy 19:f0dcf591c5dd 64 {
kb10uy 19:f0dcf591c5dd 65 nrpnLSB = lsb;
kb10uy 22:500b4f2953fa 66 nrpnStateSetter.call();
kb10uy 22:500b4f2953fa 67 if (state == NRPNNoData) nrpnStateProcessor.call();
kb10uy 19:f0dcf591c5dd 68 }
kb10uy 19:f0dcf591c5dd 69
kb10uy 19:f0dcf591c5dd 70 void MIDIChannel::setRPNMSB(char msb)
kb10uy 19:f0dcf591c5dd 71 {
kb10uy 19:f0dcf591c5dd 72 rpnMSB = msb;
kb10uy 21:e3014c1bdf9c 73 if (msb == 0x7f) {
kb10uy 19:f0dcf591c5dd 74 state = RPNNoData;
kb10uy 19:f0dcf591c5dd 75 } else {
kb10uy 21:e3014c1bdf9c 76 state = RPNSingleData;
kb10uy 19:f0dcf591c5dd 77 }
kb10uy 19:f0dcf591c5dd 78 }
kb10uy 19:f0dcf591c5dd 79
kb10uy 19:f0dcf591c5dd 80 void MIDIChannel::setRPNLSB(char lsb)
kb10uy 19:f0dcf591c5dd 81 {
kb10uy 19:f0dcf591c5dd 82 rpnLSB = lsb;
kb10uy 19:f0dcf591c5dd 83 if (state == RPNNoData) processRPNFunction();
kb10uy 17:2e577c6000cf 84 }
kb10uy 17:2e577c6000cf 85
kb10uy 17:2e577c6000cf 86 void MIDIChannel::allSoundOff()
kb10uy 17:2e577c6000cf 87 {
kb10uy 17:2e577c6000cf 88 }
kb10uy 17:2e577c6000cf 89
kb10uy 17:2e577c6000cf 90 void MIDIChannel::allNoteOff()
kb10uy 17:2e577c6000cf 91 {
kb10uy 19:f0dcf591c5dd 92 }
kb10uy 19:f0dcf591c5dd 93
kb10uy 21:e3014c1bdf9c 94 void MIDIChannel::processRPNFunction()
kb10uy 21:e3014c1bdf9c 95 {
kb10uy 19:f0dcf591c5dd 96 switch(rpnMSB) {
kb10uy 19:f0dcf591c5dd 97 case 0x00:
kb10uy 19:f0dcf591c5dd 98 //LSB 0~2全部実装できないですから
kb10uy 19:f0dcf591c5dd 99 break;
kb10uy 19:f0dcf591c5dd 100 case 0x7f:
kb10uy 19:f0dcf591c5dd 101 if (rpnLSB == 0x7f) {
kb10uy 19:f0dcf591c5dd 102 rpnMSB = 0;
kb10uy 19:f0dcf591c5dd 103 rpnLSB = 0;
kb10uy 19:f0dcf591c5dd 104 nrpnMSB = 0;
kb10uy 19:f0dcf591c5dd 105 nrpnLSB = 0;
kb10uy 19:f0dcf591c5dd 106 }
kb10uy 21:e3014c1bdf9c 107 lcd->cls();
kb10uy 21:e3014c1bdf9c 108 lcd->printf("RPN/NRPN\nNULL");
kb10uy 19:f0dcf591c5dd 109 break;
kb10uy 19:f0dcf591c5dd 110 }
kb10uy 19:f0dcf591c5dd 111 state = Undefined;
kb10uy 20:8278e607a687 112 }
kb10uy 22:500b4f2953fa 113