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    It's a 32Bit CPU. Memory Access is 32Bit, too.

    It's a 32Bit CPU. Memory Access is 32Bit, too.
  2. Yea, a good possibilitly and workaround, too. ...

    Yea, a good possibilitly and workaround, too.
    However, project-settings would be so much more easy and usable and don't need extra code.. well..if they existed "officially".
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    It has been asked for several times - there is no...

    It has been asked for several times - there is no "one-click" possibility.

    But you can simply select other build options, compile once, and then switch back. This can take a long time, depending...
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    Nobody can read a 10khz updates... Apart from...

    Nobody can read a 10khz updates...
    Apart from that, you have to add the time the usb-transfer need. there is some latency, too, which depends on how many other devices are connected, the OS you use,...
  5. It's a shame that arduino *still* does not...

    It's a shame that arduino *still* does not support user-defined #defines or project settings.

    @defragster: With our batch or with this, it's so easy...

    I wonder when Massimo will make his...
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    Yup, can confirm that.

    Yup, can confirm that.
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    tried more.. the maximum i could get was...

    tried more.. the maximum i could get was 188.99MHz on PIN19- who can archive more? ;)
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    Havn't looked at the QTIMERS in detail.. but yes,...

    Havn't looked at the QTIMERS in detail.. but yes, they look interesting.
    Can you do two outputs?
    This would be great for SDRs (Radios) as local oszillator without need for the normally used 7474...
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    I was wondering if we can output 150MHz at pin 19...

    I was wondering if we can output 150MHz at pin 19 - yes, we can!

    In the program, above remove all but the setup:


    void setup() {

    //enable clocks for QTIMER3
    CCM_CCGR6 |= 0xC0000000; ...
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    The interrupts are cleared by writing a zero. A...

    The interrupts are cleared by writing a zero.
    A "|=" is: load - logical "or" - store
    so any "1" stays "1", and the interrupts get not reset.



    I stripped the sketch and let only the...
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    Of course, it's quite possible that there are...

    Of course, it's quite possible that there are incompatibilities.
    Which errors do you get? We should fix them (if in the core), for the future. Paul will surely want to use a newer toolchain sometime...
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    If you can't compile it with teensyduino, it's...

    If you can't compile it with teensyduino, it's not very compatible...
    Why don't you make a library form it? This way everybody can use it easyly.

    Apart from that: of course can Arduino use...
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    It's there to be downloaded :) I'll leave it...

    It's there to be downloaded :) I'll leave it there.

    I don't know where the distortions come from. Maybe a bug somewhere else.. the picture looks like overflows or memory corruption.
    I don't have...
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    Oh, i see.. there is a big 5.4.1 folder inside - ...

    Oh, i see.. there is a big 5.4.1 folder inside - remaining from a test I did some months ago.. :) sry :)
    I think you can delete the 5.4.1 folder inside \arm6\lib\gcc\arm-none-eabi
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    I'm uploading my working GCC 6 directory to my...

    I'm uploading my working GCC 6 directory to my google-drive- Takes a few minutes. Willl post the link here.

    Edit:
    - Download arm6.zip,
    - extract zip to Arduino/hardware/tools/arm6,
    - edit...
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    Not sure what it would be good for. I'd just...

    Not sure what it would be good for. I'd just accept that it is an old bug which seems to be fixed in the "newer" GCC 6
    I'd just switch to GCC 6 :)


    p.s. I suspect that the GCC 8 problem from...
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    It does not happen with GCC 6 - so simplest...

    It does not happen with GCC 6 - so simplest assumption is: Compiler/Linker Bug.
    GCC 8: Does not compile because of WireIMXRT.cpp (see above...)
    GCC7: Don't have a installation at the moment.

    So,...
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    Ok, I can reproduce that now. Creepy! ;)

    Ok, I can reproduce that now.

    Creepy! ;)
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    @Defragster, I tried your zip-files. Does not...

    @Defragster, I tried your zip-files.
    Does not compile - I get


    uncannyEyes0: In function 'void drawEye(uint8_t, uint16_t, uint8_t, uint8_t, uint8_t, uint8_t)':
    uncannyEyes0:523: error:...
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    Ok, thank you for looking :)

    Ok, thank you for looking :)
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    You have it already, if you ever wrote a program...

    You have it already, if you ever wrote a program for Teensy :)
    It is in arduino/hardware/tools/arm
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    @MichaelMeissner: Have you noticed my question in...

    @MichaelMeissner: Have you noticed my question in Post #3704? :confused:
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    @defragster: I downloaded the files, maybe I'll...

    @defragster: I downloaded the files, maybe I'll look tomorrow. Again after midnight here..
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    The reason for the needed "attribute((used))" is...

    The reason for the needed "attribute((used))" is that HardFault_HandlerC is referenced in ASM only (I think), here: https://github.com/PaulStoffregen/cores/blob/master/teensy4/startup.c#L290
    The...
  25. Blog: That's exactly what I say (since many...

    Blog:

    That's exactly what I say (since many years.. :) ) - it looks a bit more "dynamic" if do it the other way: first delete the pixels that changed to "black", then overwrite all others. But...
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    @defragster: Can you post a short Arduino-Sketch...

    @defragster: Can you post a short Arduino-Sketch that helps to reproduce the problem?
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    Well, it's needed(unless there is a better...

    Well, it's needed(unless there is a better solution) otherwise it does not compile with LTO.
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    @MichaelMeissner Hi Michael, I have a...

    @MichaelMeissner

    Hi Michael, I have a question:
    GCC8 (Compiler version : 8.3.1 20190703 (release) [gcc-8-branch revision 273027]) complains about the xxx.offsetyyy mechanism in imxrt.h.
    (Edit:...
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    The chip is defective. This cannot be repaired.

    The chip is defective. This cannot be repaired.
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    I'll wait what Pauls says regarding the struct...

    I'll wait what Pauls says regarding the struct extension.
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    Use a wire and connect one of your pins with GND...

    Use a wire and connect one of your pins with GND - does it work?
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    I'd suggest to extend this struct in...

    I'd suggest to extend this struct in pins_arduino.h

    struct digital_pin_bitband_and_config_table_struct { // not really bitband, old name from Teensy3
    volatile uint32_t *reg;
    volatile...
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    Kurt, Paul, in SPI.h, we have: // If...

    Kurt, Paul,

    in SPI.h, we have:


    // If SPI is to used from within an interrupt, this function registers
    // that interrupt with the SPI library, so beginTransaction() can
    //...
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    Teensy 4 Beta-Test thread: ...

    Teensy 4 Beta-Test thread:

    https://forum.pjrc.com/threads/54711-Teensy-4-0-First-Beta-Test
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    Tried the "switch off" via software - seems to...

    Tried the "switch off" via software - seems to work, the LED on the new board is off, too, and the pressing power-button for power-on works.
    Maybe we can add a little macro to the core?

    ...
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    Tried GNU Arm Embedded Toolchain, Version...

    Tried GNU Arm Embedded Toolchain, Version 8-2019-q3-update, Released: July 10, 2019***
    I get some errors - maybe somebody wants to take care of them:



    In file included from...
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    To make it easier to find, i've quoted Kurts post...

    To make it easier to find, i've quoted Kurts post in post#3
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    Try to format the card (Not with windows! - Use...

    Try to format the card (Not with windows! - Use the official SD-Format tool: https://www.sdcard.org/downloads/formatter/) - sometimes this helps.
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    Cant help much, but I remember I had it working...

    Cant help much, but I remember I had it working with a 3.1, with ubuntu in a virtual box (windows host). Years ago, too much time to remember any detail..
  40. Thread: Bat detector

    by Frank B
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    Some encoders have incompatible pinouts (pins...

    Some encoders have incompatible pinouts (pins swapped) - maybe this is the case here.
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    Maybe I'll make something like this. But I'm not...

    Maybe I'll make something like this. But I'm not sure how to handle the SD slot.
    I thought about a board to "convert" the T4 to the T3.6 form factor (with SD on the same position), but that would...
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    Paul mentioned a future version with more pins -...

    Paul mentioned a future version with more pins - not sure if (and when) it comes.
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    The wave player supports 44.100, 22050 and 11025...

    The wave player supports 44.100, 22050 and 11025 Hz only
    (See bool AudioPlaySdWav::Parse_format(void) in play_sd_wav.cpp)
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    If you're a student, you can use EAGLE for free.

    If you're a student, you can use EAGLE for free.
  45. Not sure what it is useful for.. I read a bit...

    Not sure what it is useful for.. I read a bit about it.. I think it's way easier, more flexible and better to write a few line of c (++) - code (and I don't need to license anything or worry about...
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    The latest versions of EAGLE are really good....

    The latest versions of EAGLE are really good. Much has been done and improved. The Autorouter has also been greatly improved. (I know many people don't like the autorouter, but if you don't create...
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    Pete, the new code is supposed to work the same...

    Pete, the new code is supposed to work the same way (just translated to the new hardware). If you find the reason, I'd be interested to know why it didn't work! Maybe we need to pay more attention...
  48. Fix for Teensy 3.x :...

    Fix for Teensy 3.x : https://github.com/PaulStoffregen/Audio/pull/305/commits/076aa90ce5ca15604b697aca391eae571d25d9e8
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    My intention was to provide a way to shutdown the...

    My intention was to provide a way to shutdown the T4 if it was reset due to too high temperature. Any hook would work :) But I'd pefer a special hook for that (right before your "late" hook, maybe) -...
  50. Yes, don't know what the problem is with T3.x.....

    Yes, don't know what the problem is with T3.x.. I'll find out (but not today).

    Edit: Have to setup the Hardware, first.
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