86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
#include <MIDI.h>
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// This program will measure the time needed to receive, parse and process a
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// NoteOn message.
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// For it to work, please connect RX and TX on the MIDI port:
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// Due, Leonardo and other USB-native Arduinos: Serial1
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// All other Arduinos: Connect pins 2 and 3.
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// The program will then wait for 100 loops and print the results.
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#if defined(ARDUINO_SAM_DUE) || defined(USBCON)
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// Print through USB and bench with Hardware serial
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MIDI_CREATE_INSTANCE(HardwareSerial, Serial1, midiBench);
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#else
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#include <SoftwareSerial.h>
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SoftwareSerial midiSerial(2,3);
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MIDI_CREATE_INSTANCE(SoftwareSerial, midiSerial, midiBench);
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#endif
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// -----------------------------------------------------------------------------
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unsigned long gTime_start = 0;
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unsigned long gTime_stop = 0;
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unsigned gCounter = 0;
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unsigned long gTime_sum = 0;
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unsigned long gTime_min = -1;
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unsigned long gTime_max = 0;
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// -----------------------------------------------------------------------------
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void handleNoteOn(byte inChannel, byte inNote, byte inVelocity)
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{
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gTime_stop = micros();
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const unsigned long diff = gTime_stop - gTime_start;
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gTime_sum += diff;
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if (diff > gTime_max) gTime_max = diff;
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if (diff < gTime_min) gTime_min = diff;
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if (gCounter++ >= 1000)
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{
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const unsigned long average = gTime_sum / (float)gCounter;
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Serial.println("Time to receive NoteOn: ");
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Serial.print("Average: ");
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Serial.print(average);
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Serial.println(" microsecs");
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Serial.print("Min: ");
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Serial.print(gTime_min);
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Serial.println(" microsecs");
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Serial.print("Max: ");
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Serial.print(gTime_max);
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Serial.println(" microsecs");
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gCounter = 0;
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gTime_sum = 0;
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gTime_max = 0;
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gTime_min = -1;
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midiBench.turnThruOff();
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}
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}
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// -----------------------------------------------------------------------------
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void setup()
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{
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midiBench.setHandleNoteOn(handleNoteOn);
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midiBench.begin();
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Serial.begin(115200);
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while(!Serial);
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Serial.println("Arduino Ready");
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midiBench.sendNoteOn(69,127,1);
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}
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void loop()
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{
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gTime_start = micros();
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midiBench.read();
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}
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