Every "Seria.print*" is now capsuled inside a "#ifdef DEBUG".

MicroDexed.ino

@@ -263,9 +263,12 @@ void setup()
 #ifdef ENABLE_LCD_UI
   setup_ui();
 #else
+#ifdef DEBUG
   Serial.println(F("NO LCD DISPLAY ENABLED!"));
 #endif
+#endif
 
+#ifdef DEBUG
   Serial.println(F("MicroDexed based on https://github.com/asb2m10/dexed"));
   Serial.println(F("(c)2018-2020 H. Wirtz <wirtz@parasitstudio.de>"));
   Serial.println(F("https://codeberg.org/dcoredump/MicroDexed"));
@@ -276,6 +279,7 @@ void setup()
   Serial.println(F(" MHz"));
   Serial.println(F("<setup start>"));
   Serial.flush();
+#endif
 
   setup_midi_devices();
 
@@ -283,8 +287,10 @@ void setup()
   {
     if (instance_id < MAX_DEXED)
     {
+#ifdef DEBUG
       Serial.print(F("Creating MicroDexed instance "));
       Serial.println(instance_id, DEC);
+#endif
       MicroDexed[instance_id] = new AudioSourceMicroDexed(SAMPLE_RATE);
       dexed_level[instance_id] = new AudioAmplifier();
       mono2stereo[instance_id] = new AudioEffectMonoStereo();
@@ -292,11 +298,13 @@ void setup()
     }
     else
     {
+#ifdef DEBUG
       Serial.print(F("Ignoring instance "));
       Serial.print(instance_id, DEC);
       Serial.print(F(" (maximum allowed: "));
       Serial.print(MAX_DEXED, DEC);
       Serial.println(F(")"));
+#endif
     }
   }
 
@@ -304,7 +312,9 @@ void setup()
     // Init EEPROM if both buttons are pressed at startup
     if (digitalRead(BUT_R_PIN) == HIGH && digitalRead(BUT_L_PIN) == HIGH)
     {
+    #ifdef DEBUG
       Serial.println(F("Init EEPROM"));
+      #endif
       lcd.clear();
       lcd.setCursor(0, 0);
       lcd.print(F("INIT"));
@@ -350,20 +360,32 @@ void setup()
     6     225Hz
   */
   //sgtl5000_1.eqBands(bass, mid_bass, midrange, mid_treble, treble);
+#ifdef DEBUG
   Serial.println(F("Teensy-Audio-Board enabled."));
+#endif
 #elif defined(TGA_AUDIO_BOARD)
   wm8731_1.enable();
   wm8731_1.volume(1.0);
+#ifdef DEBUG
   Serial.println(F("TGA board enabled."));
+#endif
 #elif defined(I2S_AUDIO_ONLY)
+#ifdef DEBUG
   Serial.println(F("I2S enabled."));
+#endif
 #elif defined(PT8211_AUDIO)
+#ifdef DEBUG
   Serial.println(F("PT8211 enabled."));
+#endif
 #elif defined(TEENSY_DAC_SYMMETRIC)
   invMixer.gain(0, -1.f);
+#ifdef DEBUG
   Serial.println(F("Internal DAC using symmetric outputs enabled."));
+#endif
 #else
+#ifdef DEBUG
   Serial.println(F("Internal DAC enabled."));
+#endif
 #endif
 
   // start SD card
@@ -376,7 +398,9 @@ void setup()
 #endif
   if (!SD.begin(SDCARD_CS_PIN))
   {
+#ifdef DEBUG
     Serial.println(F("SD card not accessable."));
+#endif
     for (uint8_t instance_id = 0; instance_id < NUM_DEXED; instance_id++)
     {
       strcpy(bank_name[instance_id], "Default");
@@ -385,7 +409,9 @@ void setup()
   }
   else
   {
+#ifdef DEBUG
     Serial.println(F("SD card found."));
+#endif
     sd_card_available = true;
     for (uint8_t instance_id = 0; instance_id < NUM_DEXED; instance_id++)
     {
@@ -426,12 +452,16 @@ void setup()
   // Init effects
   memset(delayline_r, 0, sizeof(delayline_r));
   if (!modchorus_r.begin(delayline_r, MOD_DELAY_SAMPLE_BUFFER)) {
+#ifdef DEBUG
     Serial.println(F("AudioEffectModulatedDelay - begin failed (R)"));
+#endif
     while (1);
   }
   memset(delayline_l, 0, sizeof(delayline_l));
   if (!modchorus_l.begin(delayline_l, MOD_DELAY_SAMPLE_BUFFER)) {
+#ifdef DEBUG
     Serial.println(F("AudioEffectModulatedDelay - begin failed (L)"));
+#endif
     while (1);
   }
 #ifdef DEBUG
@@ -549,6 +579,7 @@ void setup()
   AudioProcessorUsageMaxReset();
   AudioMemoryUsageMaxReset();
 
+#ifdef DEBUG
   for (uint8_t instance_id = 0; instance_id < NUM_DEXED; instance_id++)
   {
     Serial.print(F("Dexed instance "));
@@ -561,9 +592,7 @@ void setup()
     Serial.println(F("]"));
     Serial.print(F("Polyphony: "));
     Serial.println(configuration.dexed[instance_id].polyphony, DEC);
-#ifdef DEBUG
     show_patch(instance_id);
-#endif
   }
 
   Serial.print(F("AUDIO_BLOCK_SAMPLES="));
@@ -571,6 +600,7 @@ void setup()
   Serial.print(F(" (Time per block="));
   Serial.print(1000000 / (SAMPLE_RATE / AUDIO_BLOCK_SAMPLES));
   Serial.println(F("ms)"));
+#endif
 
 #if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)
   show_cpu_and_mem_usage();
@@ -578,7 +608,9 @@ void setup()
 
   AudioInterrupts();
 
+#ifdef DEBUG
   Serial.println(F("<setup end>"));
+#endif
 }
 
 void loop()
@@ -620,11 +652,13 @@ void loop()
         cpu_overload_throttle_timer = 0;
         AudioProcessorUsageMaxReset();
         MicroDexed[instance_id]->keyup(-1); // kills the oldest note and decreases max_notes
+#ifdef DEBUG
         Serial.print(F("!!!CPU overload!!! Automatic throttling polyphony down to "));
         Serial.print(MicroDexed[instance_id]->getMaxNotes(), DEC);
         Serial.print(F(" for instance "));
         Serial.print(instance_id, DEC);
         Serial.println(F("."));
+#endif
         configuration.dexed[instance_id].polyphony = MicroDexed[instance_id]->getMaxNotes();
         eeprom_update(); // useful to do this???
       }
@@ -1278,19 +1312,25 @@ void initial_values_from_eeprom(bool init)
     init_configuration();
   else
   {
+#ifdef DEBUG
     Serial.println(F("Loading inital data from EEPROM."));
+#endif
 
     EEPROM.get(EEPROM_START_ADDRESS, tmp_conf);
     checksum = crc32((byte*)&tmp_conf + 4, sizeof(tmp_conf) - 4);
 
+#ifdef DEBUG
     Serial.print(F("EEPROM checksum: 0x"));
     Serial.print(tmp_conf.checksum, HEX);
     Serial.print(F(" / 0x"));
     Serial.println(checksum, HEX);
+#endif
 
     if (checksum != tmp_conf.checksum)
     {
+#ifdef DEBUG
       Serial.println(F("Checksum mismatch -> initializing EEPROM!"));
+#endif
       init_configuration();
     }
     else
@@ -1328,7 +1368,9 @@ void initial_values_from_eeprom(bool init)
         dexed_level[instance_id]->gain(mapfloat(configuration.dexed[instance_id].sound_intensity, SOUND_INTENSITY_MIN, SOUND_INTENSITY_MAX, 0.0, SOUND_INTENSITY_AMP_MAX));
       }
     }
+#ifdef DEBUG
     Serial.println(F("OK, loaded!"));
+#endif
 
     master_mixer_r.gain(DEXED, 1.0);
     master_mixer_l.gain(DEXED, 1.0);
@@ -1500,8 +1542,8 @@ void eeprom_update(void)
       eeprom_update_flag = false;
       configuration.checksum = crc32((byte*)&configuration + 4, sizeof(configuration) - 4);
       EEPROM.put(EEPROM_START_ADDRESS, configuration);
-      Serial.println(F("Updating EEPROM"));
 #ifdef DEBUG
+      Serial.println(F("Updating EEPROM"));
       show_configuration();
 #endif
     }
@@ -1550,8 +1592,11 @@ void show_cpu_and_mem_usage(void)
   if (AudioProcessorUsageMax() > 99.9)
   {
     cpumax++;
+#ifdef DEBUG
     Serial.print(F("*"));
+#endif
   }
+#ifdef DEBUG
   else
     Serial.print(F(" "));
   Serial.print(F("CPU:"));
@@ -1590,7 +1635,7 @@ void show_cpu_and_mem_usage(void)
       Serial.print(F(","));
   }
   Serial.println();
-  Serial.flush();
+#endif
   AudioProcessorUsageMaxReset();
   AudioMemoryUsageMaxReset();
 }

midi_devices.hpp

@@ -1591,7 +1591,9 @@ void setup_midi_devices(void)
   midi_serial.setHandleActiveSensing(handleActiveSensing_MIDI_DEVICE_DIN);
   midi_serial.setHandleSystemReset(handleSystemReset_MIDI_DEVICE_DIN);
   //midi_serial.setHandleRealTimeSystem(handleRealTimeSystem_MIDI_DEVICE_DIN);
+#ifdef DEBUG
   Serial.println(F("MIDI_DEVICE_DIN enabled"));
+#endif
 #endif
 
   // start up USB host
@@ -1616,7 +1618,9 @@ void setup_midi_devices(void)
   midi_usb.setHandleActiveSensing(handleActiveSensing_MIDI_DEVICE_USB_HOST);
   midi_usb.setHandleSystemReset(handleSystemReset_MIDI_DEVICE_USB_HOST);
   //midi_usb.setHandleRealTimeSystem(handleRealTimeSystem_MIDI_DEVICE_USB_HOST);
+#ifdef DEBUG
   Serial.println(F("MIDI_DEVICE_USB_HOST enabled."));
+#endif
 #endif
 
   // check for onboard USB-MIDI
@@ -1641,8 +1645,10 @@ void setup_midi_devices(void)
   usbMIDI.setHandleActiveSensing(handleActiveSensing_MIDI_DEVICE_USB);
   usbMIDI.setHandleSystemReset(handleSystemReset_MIDI_DEVICE_USB);
   //usbMIDI.setHandleRealTimeSystem(handleRealTimeSystem_MIDI_DEVICE_USB);
+#ifdef DEBUG
   Serial.println(F("MIDI_DEVICE_USB enabled."));
 #endif
+#endif
 }
 
 void check_midi_devices(void)

source_microdexed.h

@@ -27,8 +27,10 @@ class AudioSourceMicroDexed : public AudioStream, public Dexed {
       getSamples(AUDIO_BLOCK_SAMPLES, lblock->data);
       if (render_time > audio_block_time_us) // everything greater 2.9ms is a buffer underrun!
         xrun++;
-/*      if (render_time > audio_block_time_us - (audio_block_time_us / 10)) {
+      /*      if (render_time > audio_block_time_us - (audio_block_time_us / 10)) {
+               #ifdef DEBUG
               Serial.println("At CPU Limit");
+              #endif
               uint8_t nnotes = getNumNotesPlaying();
               //setMaxNotes(nnotes);
               max_notes = nnotes;