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Type: Posts; User: Frank B

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    Sticky: It is always the highest possible speed....

    It is always the highest possible speed. Independent of any settings anywhere. They are all ignored. On any Teensy 3.x or 4.x.
    Of course, the 4.x is much faster than the 3.x
    That's why I suggestest...
  2. https://www.exp-tech.de/plattformen/teensy/9947/ps...

    https://www.exp-tech.de/plattformen/teensy/9947/psram-chip-for-teensy-4.1

    Last time I looked, the PSRams were sold already. Stock=0
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    Sticky: The USB Baudrate setting is a empty function. It...

    The USB Baudrate setting is a empty function. It just does nothing.F_CPU is the current speed.
    You can expect issues from Overclocking.
    That's why it is OVERclocking.
  4. I've never used it without hub. The problem is...

    I've never used it without hub.
    The problem is most likely your ancient Windows, Eddie
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    https://github.com/PaulStoffregen/Audio/pull/347

    https://github.com/PaulStoffregen/Audio/pull/347
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    Sticky: Tried to use a slow USB Hub(12MB/s) ? Upgrading...

    Tried to use a slow USB Hub(12MB/s) ?
    Upgrading from Win7 might be an option, too.
  7. Yes, two channels USB, no, there are no plans for...

    Yes, two channels USB, no, there are no plans for more channels.
    Good news: It's open source, so you can add the missing code
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    As said, a resistor would do it. If you don't...

    As said, a resistor would do it.
    If you don't want it: Take a look at the startup hooks, in startup.c, esp. the early hook.

    Teensy delays the booting, because PCs are not quick enough to detect...
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    You may want to add a resource "Teensy Model" -...

    You may want to add a resource "Teensy Model" - some things do not work on T3 and vice versa.
    But this needs a global setting - a radio or checkbox or ..

    Edit:
    Code attached. Open the...
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    So, adding pt8211, i2s1, spdif1, adat1, mqs1...

    So,

    adding pt8211, i2s1, spdif1, adat1, mqs1

    will conflict here:



    Conflict: spdif1 setting['SPDIF Protocol'] and i2s1 setting['I2S Master']
    Conflict: shareable 'OUT1A Pin' spdif1 and...
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    Paul, I'm gonna go have a look. But it's gonna...

    Paul, I'm gonna go have a look.
    But it's gonna take time because I'm busy with moving arrangements and I have to renovate.


    I don't know what happens where in this huge code, and I have to get...
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    Like the wrong abs and round its just a poor...

    Like the wrong abs and round its just a poor implementation by the Arduino devs.
    Best not to use it.

    I tend to #undef abs and #undef round to get rid of this buggy crap . The similar functions...
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    I tend to use something like this #define...

    I tend to use something like this


    #define HOT FASTRUN __attribute__((hot))
    #define COLD FLASHMEM __attribute__((cold))


    and then write
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    Here are additional linker-scripts and a modified...

    Here are additional linker-scripts and a modified boards.txt.

    When they are installed (overwrite the existing boards.txt) , you can chose to use the old "Teensy 3" behaviour.
    Programs will runs...
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    ok, quite possible that I'm wrong. Too much...

    ok, quite possible that I'm wrong.
    Too much details of the different models to remember...
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    @audeophilic - yes you asked this before. You...

    @audeophilic - yes you asked this before.
    You simply can't change the voltage reference on the T4/T41, if I remember correctly.
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    @Paul: It would involve creating a pin - or...

    @Paul: It would involve creating a pin - or device array, setting the element to "true" if in use and before inserting the object it would be neccessary to check that flag.
    From the description...
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    Hi Paul, yes. But it is not of much use. ...

    Hi Paul, yes.
    But it is not of much use.

    20257

    I've added some minor changes:
    1) All in- and outputs which use the same device - for example all which use I2S1 - have the same color. This...
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    Sticky: @ pjkdeveloper...

    @ pjkdeveloper

    Sure you use the correct import settings?
    16 Bit.
  20. @Paul, can you fix this, please?

    @Paul, can you fix this, please?
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    Sticky: Yes, most instructions on the T4 require only one...

    Yes, most instructions on the T4 require only one cycle. Two of them can be executed simultaneously (->0.5)
    The next teensy has a second CPU... ...so we subtract one cycle, and we have -0.5.
    That...
  22. Just write pinMode(10, OUTPUT)

    Just write pinMode(10, OUTPUT)
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    Sticky: Oh, I've seen the Serial Monitor printing its own...

    Oh, I've seen the Serial Monitor printing its own sourcecode, on windows, so ...
    These are the first signs of the coming improbability drive on Teensy 5. For sure.

    Make sure you have your towel...
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    "Extreme" - what will be the next (i.mx.rt 1070) ...

    "Extreme" - what will be the next (i.mx.rt 1070)
    Improbability Drive?


    https://www.youtube.com/watch?v=bVLk9-YpRi0

    ...it will be fun :)

    Don't panic.
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    FM: The Elektor SDR works. With Stations > 100MHZ...

    FM: The Elektor SDR works. With Stations > 100MHZ not good, stations around 87..95MHZ are better.
    It does not work with weak stations .
    I can't receive the local station, but a station100km away,...
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    Feel free to change whatever you want (and do a...

    Feel free to change whatever you want (and do a Pullrequest)
    From the beginning on, the code was meant as a starting point only, not a complete reday to use application.

    I will be not here for...
  27. Might be heavy, but it's there as example for a...

    Might be heavy, but it's there as example for a i.mxrt 1050 - if I remember correctly.

    Yup, here's the link: https://www.nxp.com/docs/en/application-note/AN12562.pdf
  28. Paul can answer this better - I've tested with...

    Paul can answer this better - I've tested with 100uF capacitors per pin - between amplifier and pin.
    Not sure if this is the best way - I'm a analog electronic noob. Edit :Opps sorry that was MQS on...
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    Don't delete the IDE?

    Don't delete the IDE?
  30. Wow, nice, almost like the 3.6 which does the...

    Wow, nice, almost like the 3.6 which does the same and has simultanous audio ;)

    On the NXp website, there is an example for h.264 Video.
    Has anyone tried to port it?
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    *ping* Before I leave for some time. This...

    *ping*

    Before I leave for some time.
    This thread started 2014.
  32. All three S/PDIF Outputs work, can work...

    All three S/PDIF Outputs work, can work simultanous -- the S/PDIF input exists in two variants (one simple 44.1kHz only OR the other with resampling).
  33. A new residence. @WMXZ, why not do a step more...

    A new residence.

    @WMXZ, why not do a step more and switch to MBED or MCUxpresso?
    I'll use the time off to think about it.
  34. Since the weather is getting better now and I...

    Since the weather is getting better now and I have other hobbies and will move, I will leave this forum again for a while.

    @all: Stay healthy. Keep the distance.
    Best wishes,
    Frank.
  35. yes. For the history: This is the now closed...

    yes.
    For the history: This is the now closed pull request (without the boards.txt - did not know where to do a PR for it.)
    https://github.com/PaulStoffregen/cores/pull/440
  36. You can always mark your code that needs to be...

    You can always mark your code that needs to be fast as "FASTRUN".
    This will enable the original behaviour and copies the "FASTRUN"-code to the RAM (Still in 32kB blocks).
    However, the libs will...
  37. There could be a very simple fix for this which...

    There could be a very simple fix for this which would make the T4.x more compatible to the older models by optionally switching to a different linkage.
    But this has not found much love :) I don't...
  38. Looks good to me! Have you tested this?

    Looks good to me!
    Have you tested this?
  39. Interrupt Service Routine Syntax To use...

    Interrupt Service Routine Syntax

    To use interrupts, you must include the AVR interrupt header.
    #include <avr/io.h>
    #include <avr/interrupt.h>
    --etc

    For debug:
    #include <usb_debug_only.h>
  40. Yup. quote. "Teensy 4.0 is the latest Teensy,...

    Yup.

    quote. "Teensy 4.0 is the latest Teensy, " ;)
    "Teensy 3.6 – Teensy 3.6 with Pins – The Most Powerful Teensy"

    I'll take a break.
  41. I'll take a look tomorrow. Thanks.

    I'll take a look tomorrow.
    Thanks.
  42. It's more in the range of 100k.

    It's more in the range of 100k.
  43. I always can accept a "no". If I know the...

    I always can accept a "no".
    If I know the reason.

    Yes this is just a Hobby. Not more. So Arduino should do everything not to frustate their users.
    If their project does not compile or work...
  44. An no: A simple "no" is NOT a valid answer. You...

    An no: A simple "no" is NOT a valid answer. You can give that answer to employees . Not to users. To the guys who pay your business (Speaking to Arduino, here. To Massimo, who told me years ago the...
  45. I still don't know a valid reason to deny it....

    I still don't know a valid reason to deny it.
    Can someone point me, give me a link to an answer other than a simple "no"?

    As all other IDEs (i.e. platformio etc..) support this, Arduino will...
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    found the list for non-fpu instructions:...

    found the list for non-fpu instructions:
    http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0337e/BABBCJII.html

    Multiply accumulate : 1 cycle

    So there must be other effects. Esp if...
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    Here are the official numbers for floating point...

    Here are the official numbers for floating point (That document is superseeded - I just found no newer one)
    http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0439b/BEHJADED.html
    ...
  48. Basically the same as your I - but it allows to...

    Basically the same as your I - but it allows to put the GCC Comandlineparameters there. Maybe you can add a -I in the file, too.

    But it complains if the file is not there - so that
    if not exist...
  49. Basically the same as yours - it just does not...

    Basically the same as yours - it just does not use "-I" but "@" instead.

    you need to add this:

    recipe.hooks.sketch.prebuild.1.pattern.windows=cmd /c if not exist "{build.path}\sketch\defs.h"...
  50. Does it allow to set #defines like...

    Does it allow to set #defines like SERIAL1_TX_BUFFER_SIZE or Audiosamplerate? And to set the optimization level and warnings or other compiler settings? F_BUS or F_CPU?

    If yes, that would be...
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