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@20:8278e607a687, 2015-01-29 (annotated)

Committer:
kb10uy
Date:
Thu Jan 29 11:09:56 2015 +0000
Revision:
20:8278e607a687
Parent:
19:f0dcf591c5dd
Child:
21:e3014c1bdf9c
??

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 17:2e577c6000cf 5 modulation = 0;
kb10uy 17:2e577c6000cf 6 portamentoTime = 0;
kb10uy 17:2e577c6000cf 7 portamento = false;
kb10uy 17:2e577c6000cf 8 volume = 127;
kb10uy 17:2e577c6000cf 9 panpot = 64;
kb10uy 17:2e577c6000cf 10 expression = 127;
kb10uy 17:2e577c6000cf 11 hold1 = false;
kb10uy 19:f0dcf591c5dd 12 dataEntryMSB = 0;
kb10uy 19:f0dcf591c5dd 13 dataEntryLSB = 0;
kb10uy 19:f0dcf591c5dd 14 nrpnMSB = 0;
kb10uy 19:f0dcf591c5dd 15 nrpnLSB = 0;
kb10uy 19:f0dcf591c5dd 16 rpnMSB = 0;
kb10uy 19:f0dcf591c5dd 17 rpnLSB = 0;
kb10uy 19:f0dcf591c5dd 18 algo = NULL;
kb10uy 19:f0dcf591c5dd 19 state = Undefined;
kb10uy 19:f0dcf591c5dd 20 }
kb10uy 19:f0dcf591c5dd 21
kb10uy 19:f0dcf591c5dd 22 MIDIChannel::~MIDIChannel()
kb10uy 19:f0dcf591c5dd 23 {
kb10uy 19:f0dcf591c5dd 24 if (algo != NULL) delete algo;
kb10uy 19:f0dcf591c5dd 25 }
kb10uy 19:f0dcf591c5dd 26
kb10uy 19:f0dcf591c5dd 27 void MIDIChannel::setDataEntryMSB(char msb)
kb10uy 19:f0dcf591c5dd 28 {
kb10uy 19:f0dcf591c5dd 29 dataEntryMSB = msb;
kb10uy 19:f0dcf591c5dd 30
kb10uy 19:f0dcf591c5dd 31 }
kb10uy 19:f0dcf591c5dd 32
kb10uy 19:f0dcf591c5dd 33 void MIDIChannel::setDataEntryLSB(char lsb)
kb10uy 19:f0dcf591c5dd 34 {
kb10uy 19:f0dcf591c5dd 35 dataEntryLSB = lsb;
kb10uy 19:f0dcf591c5dd 36 }
kb10uy 19:f0dcf591c5dd 37
kb10uy 19:f0dcf591c5dd 38 void MIDIChannel::setNRPNMSB(char msb)
kb10uy 19:f0dcf591c5dd 39 {
kb10uy 19:f0dcf591c5dd 40 nrpnMSB = msb;
kb10uy 19:f0dcf591c5dd 41 if (msb >= 0x60) {
kb10uy 19:f0dcf591c5dd 42 state = NRPNSingleData;
kb10uy 19:f0dcf591c5dd 43 } else {
kb10uy 19:f0dcf591c5dd 44 state = NRPNDoubleData;
kb10uy 19:f0dcf591c5dd 45 }
kb10uy 19:f0dcf591c5dd 46 }
kb10uy 19:f0dcf591c5dd 47
kb10uy 19:f0dcf591c5dd 48 void MIDIChannel::setNRPNLSB(char lsb)
kb10uy 19:f0dcf591c5dd 49 {
kb10uy 19:f0dcf591c5dd 50 nrpnLSB = lsb;
kb10uy 19:f0dcf591c5dd 51 if (state == NRPNNoData) processNRPNFunction();
kb10uy 19:f0dcf591c5dd 52 }
kb10uy 19:f0dcf591c5dd 53
kb10uy 19:f0dcf591c5dd 54 void MIDIChannel::setRPNMSB(char msb)
kb10uy 19:f0dcf591c5dd 55 {
kb10uy 19:f0dcf591c5dd 56 rpnMSB = msb;
kb10uy 19:f0dcf591c5dd 57 if (msb == 0x7f){
kb10uy 19:f0dcf591c5dd 58 state = RPNNoData;
kb10uy 19:f0dcf591c5dd 59 } else {
kb10uy 19:f0dcf591c5dd 60 state = RPNSingleData;
kb10uy 19:f0dcf591c5dd 61 }
kb10uy 19:f0dcf591c5dd 62 }
kb10uy 19:f0dcf591c5dd 63
kb10uy 19:f0dcf591c5dd 64 void MIDIChannel::setRPNLSB(char lsb)
kb10uy 19:f0dcf591c5dd 65 {
kb10uy 19:f0dcf591c5dd 66 rpnLSB = lsb;
kb10uy 19:f0dcf591c5dd 67 if (state == RPNNoData) processRPNFunction();
kb10uy 17:2e577c6000cf 68 }
kb10uy 17:2e577c6000cf 69
kb10uy 17:2e577c6000cf 70 void MIDIChannel::allSoundOff()
kb10uy 17:2e577c6000cf 71 {
kb10uy 17:2e577c6000cf 72 }
kb10uy 17:2e577c6000cf 73
kb10uy 17:2e577c6000cf 74 void MIDIChannel::allNoteOff()
kb10uy 17:2e577c6000cf 75 {
kb10uy 19:f0dcf591c5dd 76 }
kb10uy 19:f0dcf591c5dd 77
kb10uy 19:f0dcf591c5dd 78 void MIDIChannel::processNRPNFunction() {
kb10uy 19:f0dcf591c5dd 79 switch(nrpnMSB) {
kb10uy 19:f0dcf591c5dd 80
kb10uy 19:f0dcf591c5dd 81 }
kb10uy 20:8278e607a687 82 state = Undefined;
kb10uy 19:f0dcf591c5dd 83 }
kb10uy 19:f0dcf591c5dd 84
kb10uy 19:f0dcf591c5dd 85 void MIDIChannel::processRPNFunction() {
kb10uy 19:f0dcf591c5dd 86 switch(rpnMSB) {
kb10uy 19:f0dcf591c5dd 87 case 0x00:
kb10uy 19:f0dcf591c5dd 88 //LSB 0~2全部実装できないですから
kb10uy 19:f0dcf591c5dd 89 break;
kb10uy 19:f0dcf591c5dd 90 case 0x7f:
kb10uy 19:f0dcf591c5dd 91 if (rpnLSB == 0x7f) {
kb10uy 19:f0dcf591c5dd 92 rpnMSB = 0;
kb10uy 19:f0dcf591c5dd 93 rpnLSB = 0;
kb10uy 19:f0dcf591c5dd 94 nrpnMSB = 0;
kb10uy 19:f0dcf591c5dd 95 nrpnLSB = 0;
kb10uy 19:f0dcf591c5dd 96 }
kb10uy 19:f0dcf591c5dd 97 break;
kb10uy 19:f0dcf591c5dd 98 }
kb10uy 19:f0dcf591c5dd 99 state = Undefined;
kb10uy 20:8278e607a687 100 }