ghostintranslation
Well-known member
Hi,
I'm working on a fairly large project in which I created derived classes from AudioStream. I started to see my Teensy crash while running. I managed to reproduce the issue in a much smaller piece of code:
That program always end up crashing with a serial output like this:
which is not very helpful.
I am thinking it could be 2 things, either too many Serial.print, or I do something too expensive for the RAM, but in that case what is it?
In my original project I was getting this output:
which does say more but also not really...
I really want to overcome this issue but I don't see what I'm doing wrong?
I'm working on a fairly large project in which I created derived classes from AudioStream. I started to see my Teensy crash while running. I managed to reproduce the issue in a much smaller piece of code:
Code:
// project.ino
#include <Audio.h>
#include "CustomStream.h"
AudioOutputI2S i2s1;
void setup() {
Serial.begin(115200);
// Wait for serial monitor
while (!Serial && millis() < 2500);
// Audio connections require memory to work. For more
// detailed information, see the MemoryAndCpuUsage example
AudioMemory(10);
AudioSynthWaveformModulated* sine = new AudioSynthWaveformModulated();
sine->begin(WAVEFORM_SINE);
sine->frequency(0.5);
sine->amplitude(0.1);
CustomStream* stream1 = new CustomStream("stream1");
stream1->setOnChange(onChange);
CustomStream* stream2 = new CustomStream("stream2");
stream2->setOnChange(onChange);
CustomStream* stream3 = new CustomStream("stream3");
stream3->setOnChange(onChange);
AudioConnection* patchCord1 = new AudioConnection(*sine, 0, *stream1, 0);
AudioConnection* patchCord2 = new AudioConnection(*sine, 0, *stream2, 0);
AudioConnection* patchCord3 = new AudioConnection(*sine, 0, *stream3, 0);
}
void onChange(String name, float val, float diff){
Serial.print("onChange ");
Serial.print(name);
Serial.print(" ");
Serial.println(val);
}
void loop() {
Serial.println("loop");
}
Code:
// CustomStream.h
#ifndef CustomStream_h
#define CustomStream_h
#include "AudioStream.h"
#include <vector>
using ChangeCallback = void (*)(String name, float value, float diff);
class CustomStream : public AudioStream
{
public:
CustomStream(String name);
void update(void);
void setOnChange(ChangeCallback fptr);
private:
audio_block_t *inputQueueArray[1];
// Change callback function
ChangeCallback changeCallback = nullptr;
float value = 0;
String name = "";
};
inline CustomStream::CustomStream(String name) : AudioStream(1, inputQueueArray)
{
// Set to always active so update() is called even without patchcord connected
this->active = true;
this->name = name;
}
inline void CustomStream::update()
{
Serial.println("update 1");
if (this->changeCallback != nullptr)
{
Serial.println("update 2");
this->changeCallback(this->name, this->value, 0);
}
// Set the target from the input
audio_block_t *block;
uint32_t *p, *end;
block = receiveReadOnly(0);
if (block){
this->value = block->data[0]; // TODO: instead of using one value and dropping the 127 others, drop 1
release(block);
}
block = allocate();
if (block){
p = (uint32_t *)(block->data);
end = p + AUDIO_BLOCK_SAMPLES/2;
do {
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
*p++ = this->value;
} while (p < end);
transmit(block, 0);
release(block);
}
}
inline void CustomStream::setOnChange(ChangeCallback changeCallback)
{
this->changeCallback = changeCallback;
}
#endifThat program always end up crashing with a serial output like this:
Code:
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I am thinking it could be 2 things, either too many Serial.print, or I do something too expensive for the RAM, but in that case what is it?
In my original project I was getting this output:
Code:
basic_string::_M_construct null not validbasic_string::basic_stringstring::stringbasic_string::substr*N12_GLOBAL__N_121system_error_categoryE*N12_GLOBAL__N_122generic_error_categoryE< �h�h�h�h�i�h�i�h �h�h�h�h�i�h�i�h� � �
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I really want to overcome this issue but I don't see what I'm doing wrong?
