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Type: Posts; User: Frank B

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    I have an Idea.. I could extend the Hardfaults...

    I have an Idea.. I could extend the Hardfaults for a kind of "user" exceptions.
    It would need a macro that prints the userdefined text together with the GCC macros
    __FILE__, __func__, __LINE__
    ...
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    That sounds like a good plan. Perhaps I can add...

    That sounds like a good plan.
    Perhaps I can add the SPIFFS then, too.. in a few months.
    Actually, it should be possible to integrate USB drives, simple network file systems, etc. with it...
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    I guess we need Windows-like drive-letters or...

    I guess we need Windows-like drive-letters or devices..or canonical paths... ?

    Like "//littlefs/flash0/MyFantasticFile.txt"

    But, really, I don't know what the plan is.

    Edit: With "SD" as...
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    Hm i did not read about that, but I thought FS.h...

    Hm i did not read about that, but I thought FS.h was a wrapper for all kinds of FS?
    I guess it just needs an info which FS is used.

    But I have _no_ knowlage about all this stuff. I wait for...
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    No, a GND connecton is needed in this case, too....

    No, a GND connecton is needed in this case, too.

    Don't know how better LAs do it - maybe they have a USB Isolator builtin.
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    I just saw that - if no DMA channel is available,...

    I just saw that - if no DMA channel is available, Teensy just hardfaults.
    If there was a intention to put the hardfault handling into the core, i'd try to add something like printing an errormessage...
  7. Ooops sorry, that was for T4. There is nothing...

    Ooops sorry, that was for T4.

    There is nothing on T3 that would blink after 15 sec.
    So,
    1) Disconnect USB
    2) Press and hold the button
    3) WITH BUTTON PRESSED, connect USB.

    A new sketch...
  8. :-) 1) Press the button 15 seconds - until a...

    :-)

    1) Press the button 15 seconds - until a short blink
    2) Release it.
    It should blink now and be the state where it was brand new.

    or connect 3.v3 volt to Pin 29.
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    You can hide a software-serial into the blink.....

    You can hide a software-serial into the blink.. if fast enough it wouldn't be visible and look like "LED ON" but with a optical link you could see debug messages ;)
    Ok, just a dumb idea, ignore it.
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    Nice :)

    Nice :)
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    Danke :) Hab grade die ersten Beiträge...

    Danke :)
    Hab grade die ersten Beiträge überflogen. Also der Teensy 4.x kann ganz sicher eine sehr hohe zweistellige Anzahl von Stimmen :)
    Irgendwer schrieb mal er würde 15 samples aus externem...
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    Or maybe a misbehaving ground loop. Is the LA...

    Or maybe a misbehaving ground loop.
    Is the LA connected to the same computer?
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    Oh man... why does everything have to be in...

    Oh man... why does everything have to be in English. Why are papers by Germans published exclusively in English, and then have to be translated back by other German readers... grrr :)
    We pay...
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    ..and you can remove the housing from these boxes...

    ..and you can remove the housing from these boxes and just use the board...
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    Why were these tweaks needed? Does it not work...

    Why were these tweaks needed? Does it not work without? Do I have to take that into account somehow? I did not test EQ, surround and volume ramping (and at the moment I can see no reason why they...
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    I'll start work on Teensy LC IS2-Input now.

    I'll start work on Teensy LC IS2-Input now.
  17. Not really. It just makes sure that the CPU...

    Not really.
    It just makes sure that the CPU resets as soon as possible. Otherwise it can happen some cycles later. If you want to be on the save side, add the "dsb".
    It has to do with very...
  18. I added this page to the wiki...

    I added this page to the wiki yesterday. It contains a few additional things, too.
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    I don't know, too. Maybe connect LEDs to 18 and...

    I don't know, too.
    Maybe connect LEDs to 18 and 19 and test the pins.

    btw, this is their schematic:...
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    Which wire is the GND connection to the Teensy? ...

    Which wire is the GND connection to the Teensy?

    Edit: ok seems to be "ID"..

    the 4k7 are max.. yes 2k2 are better.
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    I have personally used SPI with 60MHZ (reproduced...

    I have personally used SPI with 60MHZ (reproduced by many users) and thousands use the displays or other hardware, it is a bit unlikely that something is wrong.
    Maybe it is a problem with your...
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    This page in the Wiki can be useful:...

    This page in the Wiki can be useful:
    https://github.com/TeensyUser/doc/wiki/I2C
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    The datasheet...

    The datasheet (Page 4) says, the ht16K33 operates at 4.5 - 5.5Volt. Maybe it works with 3V, too, but this would be luck..

    IF you have luck:
    On the photo I see no GND connection. Is it there? What...
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    Again, Windows works, Powershell works. Coolterm...

    Again, Windows works, Powershell works. Coolterm works, other programs work.
    I programmed ESP over NodeMCU emulation running on Teensy - it uses both signals -> The Nodemcu programmer works too....
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    Ah, ok the 4.0/4.1 CTS/RTS pins are not supported...

    Ah, ok the 4.0/4.1 CTS/RTS pins are not supported before 1.54? Good to know.
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    I agree Paul. Windows works, i.e Powershell....

    I agree Paul. Windows works, i.e Powershell.
    The programs are buggy and maybe tested on FTDI only. The driver seems to be not 100% compatibel. Its more plausible that the bug is in the FTDI driver....
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    Would be nice to have the Hardware-Serial CTS-...

    Would be nice to have the Hardware-Serial CTS- Pins listed. If not possible on the card, maybe on the Website, at least?
    I wrote a short program to print them.
    T4: Looks like it 0,1,2,3,4,5, 7,8...
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    I'd blame the programs. There is no "Teensy...

    I'd blame the programs.
    There is no "Teensy driver" - everything is native Windows. The driver too.

    Perhaps something gets confused by your com-port-hack or the FTDI driver on com1.
    Could it be...
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    Ok.. great.

    Ok.. great.
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    Files: Yes, I think so. But I don't think there...

    Files: Yes, I think so.
    But I don't think there is a connection with the weired message "..does not exist".
    In this case the Arduino Terminal should'nt work.
    I tried on my computer, and it works...
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    Weird windows.. Its not visible in your...

    Weird windows..
    Its not visible in your screenshot: Have you used



    $port = New-Object System.IO.Ports.SerialPort COM1



    Its interesting that both are COM1. I thought Windows does not do...
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    Is the Arduino Terminal closed? Only one program...

    Is the Arduino Terminal closed? Only one program can use a serial port.
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    Is the Teensy on COM1?

    Is the Teensy on COM1?
  34. The Arduino IDE does not provide such a function....

    The Arduino IDE does not provide such a function.

    In your program you can use

    SCB_AIRCR = 0x05FA0004;
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    Hi Len, If I remember correctly (It's been some...

    Hi Len, If I remember correctly (It's been some time since I wrote this) the times are preset in the chip.
    Maybe you want to look at the 3000+Pg Reference Manual? Quite possible that there is an...
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    But a new user doesn't associate that text with...

    But a new user doesn't associate that text with "it could be the wrong cable".
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    KD0RC, very nice project. How did you make the...

    KD0RC, very nice project.
    How did you make the front panel?

    I'm always too lazy to make a front panel.
    At some point my projects end up dusty in a drawer, and are then used much later as a...
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    No Problem. @Paul, can the booloader detect...

    No Problem.

    @Paul, can the booloader detect wether it is a charge-only cable or not?
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    Attached a shorter file, it should upload (Press...

    Attached a shorter file, it should upload (Press the button), and blink a bit faster after that.
    If this does not work too, there is a Hardware problem.
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    1) Is this a brand new Teensy 4, or has it been...

    1) Is this a brand new Teensy 4, or has it been used before?
    2) Does it blink slowly?
    3) Is the USB-Cable you are using a charging only cable or is it for data, too? You can try it with a...
  41. Correct, in most cases the reset on the display...

    Correct, in most cases the reset on the display is not needed.
    You also don't need some pins of the audio shield.
    I.e. if you don't use the potentiometer, you don't need pin 15.
    If you don't need...
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    Are you really sure you're starting the...

    Are you really sure you're starting the downloaded version?
    Klick on "Help":

    23269
    And are you sure you're using the correct Hex File?
    How large is it, in Bytes?
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    I've modified the code in #60 to work with...

    I've modified the code in #60 to work with TeensyLC and Teensy3.x
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    If I do it right, it works right. Voilá, pitch...

    If I do it right, it works right.

    Voilá, pitch shifting on LC (okay, it just changes the samplerate on the fly)
    You'll need a potentiometer on your Audio Shield or Pin 15.

    Modified WavPlayer...
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    LOL I tried to modify the PLL of the SGTL-5000...

    LOL

    I tried to modify the PLL of the SGTL-5000 at runtime, with the help of the potentiometer on the Audio Shield and the WavFilePlayer.
    HAHA.. Well..
    THE LC CAN DO PITCH-SHIFTING.
    Totally...
  46. I don't know if one should do that... lol I've...

    I don't know if one should do that... lol
    I've just connected a cheap headset from an old smartphone to the PJRC PT8211 board.
    VERY very loud.
    I don't know any spec of the headset.

    Don't know...
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    Done .

    Done .
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    I found it. It was 2016:...

    I found it. It was 2016:
    https://github.com/PaulStoffregen/Audio/commit/0b27b37eb8a3ef60860424f5f14a3d146f2de739

    As we now have more sources for files, and with the abstractions we need a better...
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    No more silent passing away... (in most cases) ...

    No more silent passing away... (in most cases)

    @Paul or others:
    In WavFilePlayer we have patches like


    #if defined(HAS_KINETIS_SDHC)

    I think I(??) have added them a long time ago, to fix...
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    PaulS, here is a new version...

    PaulS,

    here is a new version
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