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。

Diff: FMOscillator/MIDIChannel.cpp

Revision:
19:f0dcf591c5dd
Parent:
17:2e577c6000cf
Child:
20:8278e607a687
diff -r b20fdf1da8f8 -r f0dcf591c5dd FMOscillator/MIDIChannel.cpp
--- a/FMOscillator/MIDIChannel.cpp	Tue Jan 27 13:25:14 2015 +0000
+++ b/FMOscillator/MIDIChannel.cpp	Thu Jan 29 11:05:37 2015 +0000
@@ -9,6 +9,62 @@
     panpot = 64;
     expression = 127;
     hold1 = false;
+    dataEntryMSB = 0;
+    dataEntryLSB = 0;
+    nrpnMSB = 0;
+    nrpnLSB = 0;
+    rpnMSB = 0;
+    rpnLSB = 0;
+    algo = NULL;
+    state = Undefined;
+}
+
+MIDIChannel::~MIDIChannel()
+{
+    if (algo != NULL) delete algo;
+}
+
+void MIDIChannel::setDataEntryMSB(char msb)
+{
+    dataEntryMSB = msb;
+    
+}
+
+void MIDIChannel::setDataEntryLSB(char lsb)
+{
+    dataEntryLSB = lsb;
+}
+
+void MIDIChannel::setNRPNMSB(char msb)
+{
+    nrpnMSB = msb;
+    if (msb >= 0x60) {
+        state = NRPNSingleData;
+    } else {
+        state = NRPNDoubleData;
+    }
+}
+
+void MIDIChannel::setNRPNLSB(char lsb)
+{
+    nrpnLSB = lsb;
+    if (state == NRPNNoData) processNRPNFunction();
+}
+
+void MIDIChannel::setRPNMSB(char msb)
+{
+    rpnMSB = msb;
+    if (msb == 0x7f){
+        state = RPNNoData;
+    } else {
+        state = RPNSingleData;    
+    }
+}
+
+void MIDIChannel::setRPNLSB(char lsb)
+{
+    rpnLSB = lsb;
+    if (state == RPNNoData) processRPNFunction();
 }
 
 void MIDIChannel::allSoundOff()
@@ -17,4 +73,27 @@
 
 void MIDIChannel::allNoteOff()
 {
+}
+
+void MIDIChannel::processNRPNFunction() {
+    switch(nrpnMSB) {
+        
+    }
+}
+
+void MIDIChannel::processRPNFunction() {
+    switch(rpnMSB) {
+        case 0x00:
+            //LSB 0~2全部実装できないですから
+            break;
+        case 0x7f:
+            if (rpnLSB == 0x7f) {
+                rpnMSB = 0;
+                rpnLSB = 0;
+                nrpnMSB = 0;
+                nrpnLSB = 0;
+            }
+            break;
+    }
+    state = Undefined;
 }
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