I found some strange behavior with T4:
Using this code (the delay example):
freezes the MCU.The culprit is this line:
The code as such works for T36 and also for the internal delay. Commenting above line unfreezes the T40. This happens both on the Audo Shield and the BA TGA.
Please advise.
Using this code (the delay example):
Code:
// Delay demonstration example, Teensy Audio Library
// http://www.pjrc.com/teensy/td_libs_Audio.html
//
// Creates a chirp on the left channel, then
// three delayed copies on the right channel.
//
// Requires the audio shield:
// http://www.pjrc.com/store/teensy3_audio.html
//
// This example code is in the public domain.
#define ledPin 13
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
// GUItool: begin automatically generated code
AudioSynthWaveformSine sine1; //xy=158,74
AudioEffectEnvelope envelope1; //xy=232,156
AudioEffectDelayExternal delay1; //xy=393,238
AudioMixer4 mixer1; //xy=532,205
AudioOutputI2S i2s1; //xy=611,61
AudioConnection patchCord1(sine1, envelope1);
AudioConnection patchCord2(envelope1, delay1);
AudioConnection patchCord3(envelope1, 0, i2s1, 0);
AudioConnection patchCord4(delay1, 0, mixer1, 0);
AudioConnection patchCord5(delay1, 1, mixer1, 1);
AudioConnection patchCord6(delay1, 2, mixer1, 2);
AudioConnection patchCord7(delay1, 3, mixer1, 3);
AudioConnection patchCord8(mixer1, 0, i2s1, 1);
AudioControlSGTL5000 sgtl5000_1; //xy=195,272
// GUItool: end automatically generated code
void setup() {
// allocate enough memory for the delay
AudioMemory(120);
// enable the audio shield
sgtl5000_1.enable();
sgtl5000_1.volume(0.5);
pinMode(ledPin, OUTPUT);
// configure a sine wave for the chirp
// the original is turned on/off by an envelope effect
// and output directly on the left channel
sine1.frequency(1000);
sine1.amplitude(0.5);
// create 3 delay taps, which connect through a
// mixer to the right channel output
delay1.delay(0, 110);
delay1.delay(1, 220);
delay1.delay(2, 330);
}
void loop() {
envelope1.noteOn();
delay(36);
envelope1.noteOff();
delay(4000);
}
Code:
pinMode(ledPin, OUTPUT);Please advise.
