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  1. Looks like you may have luck.. these are the...

    Looks like you may have luck.. these are the parts Paul mentioned. The big IC does not get hot?
  2. OK, other parts get hot, not the main CPU. ...

    OK, other parts get hot, not the main CPU.
    @caris: Which part is hot?
  3. Would be interesting.. but how does it get hot if...

    Would be interesting.. but how does it get hot if there is a short?
  4. As far as I know halfkay always performs a full...

    As far as I know halfkay always performs a full flash erase (everything but the eeprom area). There are plans to add more of such areas, but I think that can take a a long time.. if it ever comes.
  5. Yes, a hot board is a clear indicator that it is...

    Yes, a hot board is a clear indicator that it is dead.
  6. Hi, no these are independent hardware units....

    Hi,

    no these are independent hardware units. There is no relation.

    Frank
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    I Ithink I wrote some ( a lot of ) posts about...

    I Ithink I wrote some ( a lot of ) posts about the memory boundary on T3, including the memcpy issues. It hit us several times. Maybe with some digging you can find them - including testcode.
    The...
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    Will there be a way to disable all the encryption...

    Will there be a way to disable all the encryption additions when I don't need it?
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    Are there problems with it?

    Are there problems with it?
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    ...and you can use both. If you keep your "hot"...

    ...and you can use both.
    If you keep your "hot" functions in the RAM (ITCM size is minimum 32kB anyway) it will be fast. Then, the additional 32kB (Teensy 4) instruction cache for the flash does a...
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    You could edit the linker script. Come on,...

    You could edit the linker script.


    Come on, even with 500 functions, with ctrl-c / ctrl-v it's done in a few minutes.
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    Yes, the 5102 should work, without any changes....

    Yes, the 5102 should work, without any changes.
    Teensy Audio is meant for CD Quality. So more than 16 Bit are not needed here, and if you want more you have to modify the whole library. The...
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    After some more testing, i'm quite sure it only...

    After some more testing, i'm quite sure it only happens when there is/was a powerloss during a write.
    In that case the internal wear leveling does not work anymore - of course, because it is in an...
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    The pedal seems to be quite good, pretty robust....

    The pedal seems to be quite good, pretty robust.

    Not sure what I will do with it.. my initial Idea was to use a Teensy 3.2 (has a PGA) to create e-guitar effects.
    In the meantime I lost Interest...
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    I remember Paul merged my patch for memcpy that...

    I remember Paul merged my patch for memcpy that switched it to aligned mode only, I guess another patch must have switched it off again..
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    This is a known issue (I've seen it first 2014):...

    This is a known issue (I've seen it first 2014):
    You need to make sure to access you data aligned (everything else is slower than needed anyway)

    ...
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    Hi, see Post #27...

    Hi,
    see Post #27 in the same thread - I added a callback function.
    It gets called when the button is pressed.
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    Morning Kurt, don't you need the screw?

    Morning Kurt,

    don't you need the screw?
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    The other models have their own eeprom-emulation...

    The other models have their own eeprom-emulation code, so it's unlikely they are affected.



    Reading EEPROM: EC 91 10 F7 7A 7E 26 42 81 F5 50 8D 3F 1E 51 16 17 11 8F 25 FB A2 0D 01 F1 B9 0A F4...
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    I can confirm this. It happens without the EEPROM...

    I can confirm this. It happens without the EEPROM library, too.
    I used eeprom_write_block(), eeprom_read_block().
    Interesting is, that something happens after a few block writes and it starts...
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    Ordered the "Lead Foot". Thanks!

    Ordered the "Lead Foot".
    Thanks!
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    A search for "wah wah enclosure" shows this from...

    A search for "wah wah enclosure" shows this from Alie:...
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    Thanks for the tips! I think there is the right...

    Thanks for the tips!
    I think there is the right one.

    Yes, it should be for a kind of WAH-WAH (but with Teensy)

    A Cry Baby would be perfect, but as said, a bit expensive..
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    "Empty" Audio effects pedal

    I am looking for an empty case for an audio effects pedal with a built in potentiometer. Where can I buy something like that? (Europe favored)
    Or, alternatively - how do you build something like...
  25. Probably a bug in your code. Not sure what you...

    Probably a bug in your code.

    Not sure what you expect.. without knowing anything about the code or even what you're doing or about the hardware you use .. it's impossible to answer.
    The photos...
  26. Does 512 work with a lower samplerate? And why...

    Does 512 work with a lower samplerate?

    And why do you sample with that high speed?
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    Danke :) Kein Problem.. Thanks . No problem

    Danke :) Kein Problem..

    Thanks . No problem
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    You posted to that thread a few minutes ago.

    You posted to that thread a few minutes ago.
  29. Just power the Teensy with 5V (cut the pads) and...

    Just power the Teensy with 5V (cut the pads) and don't connect the new 3.3V rail to the Teensy. Note, don't forget to connect GND.
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    Sorry, havn't read all. Is there an audio...

    Sorry, havn't read all.
    Is there an audio problem, i.e. distorted sound?
    Or an other problem?

    AudioNoInterrupts() just disables the very low priority software interrupt that generates new audio...
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    Thank you, Luni :)

    Thank you, Luni :)
  32. Another common problem we often see here is that...

    Another common problem we often see here is that Teensy is so much faster. Wherever Bitbang is used, Teensy may simply be too fast for the attached hardware. Then, for example, successive...
  33. You will notice that it also needs more RAM. And...

    You will notice that it also needs more RAM. And the AVR program may behave differently on ARM.
    The main difference on ARM "Int" is 4 byte size vs 2 byte on AVR. Same for pointers and derived data...
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    A guess: Test Call 2: For AVR, the string ist...

    A guess:
    Test Call 2: For AVR, the string ist stored in RAM, because the "F" Macro is missing. So, no problem to modify it.
    However, I'm not 100% sure where Teensy stores it.. :) Would have to take...
  35. Yes, that's correct.

    Yes, that's correct.
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    The common thing that both compilers are "GCC"....

    The common thing that both compilers are "GCC".
    But one is for ARM, the other for ATMEGA. They are different versions, and are called with different flags. If you turn on "verbose compile" you can...
  37. ATMega is a completely different architecture. It...

    ATMega is a completely different architecture. It is 8 Bit cpu - 1 Byte per instruction.
    Teensy is 32 Bit. Each Assembler instruction needs 2..4 Bytes. (edited here (thumb instructions - have to...
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    void checkPosition() { code for pins 21, 23...

    void checkPosition()
    {
    code for pins 21, 23 here...
    }

    void loop()
    {

    [...]
    while(myKeyPad.ky_rdy == 1)
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    Simple :) Create a function that performs the...

    Simple :) Create a function that performs the query(polling) and call it whenever you think you need it. Insert the call into your loops and everthing is good...
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    Nick, it is important to know if the switches are...

    Nick, it is important to know if the switches are mechanical switches or not.
    Mechanical switches bounce. Always.
    Bouncing means, if a switch changes its state, youl'll get not one interrupt...
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    If you quote it, quote all... Returns a...

    If you quote it, quote all...


    Returns a pointer to an array of 128 int16. This buffer is within the audio library memory pool, providing the most efficient way to input data to the audio system....
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    YOu didn't say it does not work.. you mentioned a...

    YOu didn't say it does not work.. you mentioned a warning only..
    What does not work?

    note, memcpy copies 128 BYTES... for (u)int16 you may want 256?
    Queue.getBuffer(); may return NULL I think..
  43. I2C is often the reason for noise. Don't know...

    I2C is often the reason for noise. Don't know exactly why... perhaps because it's relatively slow?
    I think it should help to use the slowest speed possible. series resistors (and/or even small...
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    Arduino should show you the line? I'd guess it's...

    Arduino should show you the line?
    I'd guess it's here :
    int16_t * b = buffer_0; (because buffer 0 is "unsigned short int")

    But I'm not a compiler... ;)
    That's why a complete program posted is...
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    I don't see why this needs interrupts... but ok.....

    I don't see why this needs interrupts... but ok.. didn't you say you have already working code?

    Are these couplers fed by switches?
  46. Ok.. so let's calc. 5 files * 44100 samples/sec...

    Ok.. so let's calc.
    5 files * 44100 samples/sec * 2 bytes per sample * 20 * 60 (20 minutes) :

    5*44100*2*20*60 = ~ 530 Megabytes

    I'd just use 5 Teensys... doable for 130$ maybe.. (cheap D/As)...
  47. Yes, FLASH is an option, if it is large enough.

    Yes, FLASH is an option, if it is large enough.
  48. Some time ago I created an experimental mp3 lib....

    Some time ago I created an experimental mp3 lib. Don't remember exactly how many mp3 simultanoulsy were possible.. must have been 3 or 4 @128kBps
    I can try and play a bit with it.
    However, i...
  49. I don't think reading 5 audio files with 44khz is...

    I don't think reading 5 audio files with 44khz is possible.
    Perhaps it can work if the files are mono and with a lower sampling rate.. or by using two or 3 microcontrollers?

    The problem is not...
  50. Or not enough Audio Memory or interrupts disabled...

    Or not enough Audio Memory or interrupts disabled too long.. or too much of them, or one is taking too much time..?

    The 100HZ i2c noise really looks like a hw problem.
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