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