Yuu Kobayashi
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。
Diff: FMOscillator/FMOscillator.cpp
- Revision:
- 17:2e577c6000cf
- Parent:
- 16:5cfa8b491882
- Child:
- 18:b20fdf1da8f8
--- a/FMOscillator/FMOscillator.cpp Mon Jan 26 13:26:34 2015 +0000
+++ b/FMOscillator/FMOscillator.cpp Tue Jan 27 12:56:33 2015 +0000
@@ -2,32 +2,41 @@
char sysexData[128];
-FMOscillator::FMOscillator() {
-
+FMOscillator::FMOscillator()
+{
+
}
-FMOscillator::FMOscillator(int opc, Timer *tim, Serial *ser, AOTTrigon *tri, I2C *i2clcd) {
+FMOscillator::FMOscillator(int opc, Timer *tim, Serial *ser, AOTTrigon *tri, I2C *i2clcd)
+{
master = tim;
serial = ser;
trigon = tri;
opcount = opc;
-
+
operators = new FMOperator*[opcount];
for(int i = 0; i < opcount; i++) {
operators[i] = new FMOperator(master, trigon);
}
+
+ channels = new MIDIChannel*[16];
+ for(int i = 0; i < 16; i++) {
+ channels[i] = new MIDIChannel();
+ }
+
lcd = new AQM0802A(*i2clcd);
-
+
serial->baud(256000);
serial->format();
serial->attach(this, &FMOscillator::midiReceived);
master->start();
-
+
lcd->cls();
lcd->printf("NuFM401\nFMDriver");
}
-FMOscillator::~FMOscillator() {
+FMOscillator::~FMOscillator()
+{
for(int i = 0; i < opcount; i++) {
delete operators[i];
}
@@ -154,12 +163,108 @@
void FMOscillator::midiControlChange(char ch, char ctrl, char data)
{
+ switch(ctrl) {
+ //bank select
+ case 0x00:
+ break;
+ case 0x20:
+ break;
+ //modulation
+ case 0x01:
+ channels[ch]->setModulationMSB(data);
+ break;
+ case 0x21:
+ //channels[ch]->setModulationLSB(data);
+ break;
+
+ //portamento time
+ case 0x05:
+ channels[ch]->setPortamentoTime(data);
+ break;
+ case 0x25:
+ break;
+
+ //Volume
+ case 0x07:
+ channels[ch]->setVolume(data);
+ break;
+ case 0x37:
+ break;
+
+ //balance
+ case 0x08:
+ break;
+ case 0x28:
+ break;
+
+ //panpot
+ case 0x0a:
+ channels[ch]->setPanpot(data);
+ break;
+ case 0x2a:
+ break;
+
+ //expression
+ case 0x0b:
+ channels[ch]->setExpression(data);
+ break;
+ case 0x2b:
+ break;
+
+ //hold1
+ case 0x40:
+ if (data > 0x40) {
+ channels[ch]->startHold1();
+ } else {
+ channels[ch]->endHold1();
+ }
+ break;
+
+ //portamento
+ case 0x41:
+ channels[ch]->setPortamentoSwitch(data > 0x40);
+ break;
+
+ //data entry
+ case 0x06:
+ channels[ch]->setDataEntryMSB(data);
+ break;
+ case 0x26:
+ channels[ch]->setDataEntryLSB(data);
+ break;
+
+ //nrpn
+ case 0x63:
+ channels[ch]->setNRPNMSB(data);
+ break;
+ case 0x62:
+ channels[ch]->setNRPNLSB(data);
+ break;
+
+ //rpn
+ case 0x65:
+ channels[ch]->setRPNMSB(data);
+ break;
+ case 0x64:
+ channels[ch]->setRPNLSB(data);
+ break;
+ }
}
void FMOscillator::midiChannelMode(char ch, char ctrl, char data)
{
-
+ switch(ctrl) {
+ case 0x78:
+ channels[ch]->allSoundOff();
+ break;
+
+ case 0x7b:
+ case 0x7c:
+ case 0x7d:
+ channels[ch]->allNoteOff();
+ break;
+ }
}
void FMOscillator::midiProgramChange(char ch, char prg)