Added midi_channel.

Added showing MIDI channel in debug data.
Added checking for necessary write to EEPROM.

MicroDexed.ino

@@ -47,6 +47,7 @@ MIDI_CREATE_INSTANCE(HardwareSerial, MIDI_DEVICE, MIDI);
 Dexed* dexed = new Dexed(SAMPLE_RATE);
 bool sd_card_available = false;
 uint8_t bank = EEPROM.read(EEPROM_BANK_ADDR);
+uint8_t midi_channel = DEFAULT_MIDI_CHANNEL;
 uint32_t xrun = 0;
 uint32_t overload = 0;
 
@@ -183,7 +184,7 @@ void handle_midi_input(void)
 #ifdef DEBUG
     Serial.println(F("MIDI-USB"));
 #endif
-    if (MIDI.getType() == 0xF0) // SysEX
+    if (MIDI.getType() >= 0xf0) // SysEX
     {
       handle_sysex_parameter(MIDI.getSysExArray(), MIDI.getSysExArrayLength());
     }
@@ -195,9 +196,9 @@ void handle_midi_input(void)
   while (MIDI.read())
   {
 #ifdef DEBUG
-    Serial.println(F("MIDI-Serial"));
+    Serial.print(F("[MIDI-Serial] "));
 #endif
-    if (MIDI.getType() == 0xF0) // SYSEX
+    if (MIDI.getType() >= 0xf0) // SYSEX
     {
       handle_sysex_parameter(MIDI.getSysExArray(), MIDI.getSysExArrayLength());
     }
@@ -261,13 +262,18 @@ void note_off(void)
 #ifdef SHOW_MIDI_EVENT
 void print_midi_event(uint8_t type, uint8_t data1, uint8_t data2)
 {
-  Serial.print(F("MIDI event type: 0x"));
+  Serial.print(F("MIDI-Channel: "));
+  if (midi_channel == MIDI_CHANNEL_OMNI)
+    Serial.print(F("OMNI"));
+  else
+    Serial.print(midi_channel, DEC);
+  Serial.print(F(", MIDI event type: 0x"));
   if (type < 16)
     Serial.print(F("0"));
   Serial.print(type, HEX);
-  Serial.print(F(" data1: "));
+  Serial.print(F(", data1: "));
   Serial.print(data1, DEC);
-  Serial.print(F(" data2: "));
+  Serial.print(F(", data2: "));
   Serial.println(data2, DEC);
 }
 #endif
@@ -294,8 +300,7 @@ bool handle_master_key(uint8_t data)
       {
         Serial.print(F("Loading voice number "));
         Serial.println(num, DEC);
-        EEPROM.write(EEPROM_VOICE_ADDR, num);
+        store_voice_number(bank, num);
-        EEPROM.write(EEPROM_BANK_ADDR, bank);
       }
     }
     return (true);
@@ -329,6 +334,11 @@ bool queue_midi_event(uint8_t type, uint8_t data1, uint8_t data2)
     print_midi_event(type, data1, data2);
 #endif
 
+#ifdef SHOW_MIDI_EVENT
+  print_midi_event(type, data1, data2);
+#endif
+  type = type & 0xf0;
+
 #ifdef MASTER_KEY_MIDI
   if (type == 0x80 && data1 == MASTER_KEY_MIDI) // Master key released
   {
@@ -409,6 +419,14 @@ int8_t num_key_base_c(uint8_t midi_note)
 }
 #endif
 
+void store_voice_number(uint8_t bank, uint8_t voice)
+{
+  if (EEPROM.read(EEPROM_BANK_ADDR) != bank)
+    EEPROM.write(EEPROM_BANK_ADDR, bank);
+  if (EEPROM.read(EEPROM_VOICE_ADDR) != voice)
+    EEPROM.write(EEPROM_VOICE_ADDR, voice);
+}
+
 void handle_sysex_parameter(const uint8_t* sysex, uint8_t len)
 {
   // parse parameter change

config.h

@@ -36,6 +36,7 @@
 #define MAX_NOTES 16        // Yes
 #endif
 #define AUDIO_MEM 2
+#define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI
 #define DEFAULT_SYSEXBANK 0
 #define DEFAULT_SYSEXSOUND 0
 
@@ -45,7 +46,7 @@
 
 // Debug output
 #define SERIAL_SPEED 38400
-#define SHOW_DEXED_TIMING 1
+//#define SHOW_DEXED_TIMING 1
 #define DEBUG 1
 #define SHOW_MIDI_EVENT 1
 #define SHOW_XRUN 1
@@ -57,7 +58,7 @@
 #define REDUCE_LOUDNESS 2
 
 // Enable TEST_NOTE for adding code to drop some midi notes for testing without keyboard
-#define TEST_NOTE MIDI_E2
+//#define TEST_NOTE MIDI_E2
 #define TEST_VEL_MIN 60
 #define TEST_VEL_MAX 110