You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
3.9 KiB
124 lines
3.9 KiB
/*************************************************************************
|
|
* This demo uses only the built-in libraries provided with the Arudino
|
|
* Teensy libraries.
|
|
*
|
|
* IT IS STRONGLY RECOMMENDED to use the BALibrary Library located at
|
|
* https://github.com/Blackaddr/BALibrary
|
|
* The BALibrary library will made it easier to use the features of your
|
|
* GTA Pro board, as well and configure it correctly to eliminate
|
|
* unneccesary noise.
|
|
*
|
|
* The built-in support for the WM8731 codec in the Teensy Library is very
|
|
* limited. Without proper configuration, the codec will produce a noisy
|
|
* output. This is caused by the default configuration the WM8731 powers
|
|
* up in. This can easily be corrected by installing the BALibrary library
|
|
*
|
|
* For instructions on installing additional libraries follow the
|
|
* instructions at https://www.arduino.cc/en/Guide/Libraries after downloading
|
|
* the BALibrary repo from github as a zip file.
|
|
*
|
|
*/
|
|
|
|
#include <Wire.h>
|
|
#include <Audio.h>
|
|
#include <MIDI.h>
|
|
|
|
MIDI_CREATE_DEFAULT_INSTANCE();
|
|
using namespace midi;
|
|
|
|
AudioInputI2S i2sIn;
|
|
AudioOutputI2S i2sOut;
|
|
|
|
// Audio connections, just connect the I2S input directly to the I2S output.
|
|
AudioConnection patch0(i2sIn,0, i2sOut, 0);
|
|
AudioConnection patch1(i2sIn,1, i2sOut, 1);
|
|
|
|
AudioControlWM8731 codecControl; // needed to enable the codec
|
|
|
|
unsigned long t=0;
|
|
const int usrLED = 16; // the location of the GTA Pro user LED (not the LED on the Teensy itself)
|
|
int usrLEDState = 0;
|
|
|
|
void setup() {
|
|
|
|
// Configure the user LED pin as output
|
|
pinMode(usrLED, OUTPUT);
|
|
digitalWrite(usrLED, usrLEDState);
|
|
|
|
// Enable the MIDI to listen on all channels
|
|
MIDI.begin(MIDI_CHANNEL_OMNI);
|
|
Serial.begin(57600); // Enable the serial monitor
|
|
Wire.begin(); // Enable the I2C bus for controlling the codec
|
|
delay(5);
|
|
|
|
delay(100);
|
|
codecControl.disable(); // Turn off the codec first (in case it was in an unknown state)
|
|
delay(100);
|
|
AudioMemory(24);
|
|
|
|
Serial.println("Enabling codec...\n");
|
|
codecControl.enable(); // Enable the codec
|
|
delay(100);
|
|
|
|
|
|
}
|
|
|
|
void loop() {
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// MIDI TESTING
|
|
// Connect a loopback cable between the MIDI IN and MIDI OUT on the
|
|
// GTA Pro. This test code will periodically send MIDI events which
|
|
// will loop back and get printed in the Serial Monitor.
|
|
///////////////////////////////////////////////////////////////////////
|
|
DataByte note, velocity, channel, d1, d2;
|
|
|
|
// Send MIDI OUT
|
|
int cc, val=0xA, channelSend = 1;
|
|
for (cc=32; cc<40; cc++) {
|
|
MIDI.sendControlChange(cc, val, channelSend); val++; channelSend++;
|
|
delay(100);
|
|
MIDI.sendNoteOn(10, 100, channelSend);
|
|
delay(100);
|
|
}
|
|
|
|
if (MIDI.read()) { // Is there a MIDI message incoming ?
|
|
MidiType type = MIDI.getType();
|
|
Serial.println(String("MIDI IS WORKING!!!"));
|
|
switch (type) {
|
|
case NoteOn:
|
|
note = MIDI.getData1();
|
|
velocity = MIDI.getData2();
|
|
channel = MIDI.getChannel();
|
|
if (velocity > 0) {
|
|
Serial.println(String("Note On: ch=") + channel + ", note=" + note + ", velocity=" + velocity);
|
|
} else {
|
|
Serial.println(String("Note Off: ch=") + channel + ", note=" + note);
|
|
}
|
|
break;
|
|
case NoteOff:
|
|
note = MIDI.getData1();
|
|
velocity = MIDI.getData2();
|
|
channel = MIDI.getChannel();
|
|
Serial.println(String("Note Off: ch=") + channel + ", note=" + note + ", velocity=" + velocity);
|
|
break;
|
|
default:
|
|
d1 = MIDI.getData1();
|
|
d2 = MIDI.getData2();
|
|
Serial.println(String("Message, type=") + type + ", data = " + d1 + " " + d2);
|
|
}
|
|
t = millis();
|
|
}
|
|
|
|
// If no MIDI IN activity, print a message every 10 seconds
|
|
if (millis() - t > 10000) {
|
|
t += 10000;
|
|
Serial.println("(no MIDI activity, check cables)");
|
|
}
|
|
|
|
// Toggle the USR LED state
|
|
usrLEDState = ~usrLEDState;
|
|
digitalWrite(usrLED, usrLEDState);
|
|
|
|
}
|
|
|
|
|