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  1. SPIFFS isn't directly supported on Teensy for a...

    SPIFFS isn't directly supported on Teensy for a couple of revisions of TD - or by its maker or others when last checked ...

    FLASH DISK is in use with LittleFS installed with TeensyDuino.

    Looked...
  2. That 8 seconds delay is something FAULTING the...

    That 8 seconds delay is something FAULTING the processor.

    Add this to setup and watch the Serial Montor:


    Serial.begin(115200);
    while (!Serial && millis() < 2500 );
    if ( CrashReport)...
  3. There was a problem found in baud rate change and...

    There was a problem found in baud rate change and fixed IIRC since TD 1.53 - please update to TD 1.55 and test
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    What Teensy? For the 1062 based T_4's I see...

    What Teensy? For the 1062 based T_4's I see this:


    Serial.print( "Bootloader !!!\n" );
    delay(10);
    asm("bkpt #251");
  5. What version of TeensyDuino is in use? 1.55 or...

    What version of TeensyDuino is in use? 1.55 or prior?

    @KurtE: It may be something in the 'cleanup' done to prevent yield() callout to unneeded 'event' code?
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    Wow - the original over 2 years ago when that was...

    Wow - the original over 2 years ago when that was tried ... and remember trying to get my CAT id'd on the T_MM with camera.

    Also one reason might be the TF.org link led to...
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    Plugged this in again - still good with the 1220...

    Plugged this in again - still good with the 1220 cell: seeing 2.81 volts


    RTC has set the system time
    21:28:34 26 10 2021


    Down from 3.20 V on Sept 9th - may not make it much longer ... 47...
  8. The code shows read from Serial1 ... then it...

    The code shows read from Serial1 ... then it prints that back out Serial1 ... that would then not appear in the shown Serial Monitor Window.

    For USB print sue : Serial.print
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    The linked github relies on a T_3.6 with USB Host...

    The linked github relies on a T_3.6 with USB Host to connect outside devices. It is also based on TD 1.45 - and TD 1.55 is current.

    So using that would have issues - is USB Host needed that the...
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    Only the Device port is directly supported by...

    Only the Device port is directly supported by PJRC using the bootloader connectivity and control and access to the USB device port

    There may be variations of a 'flasher' that have evolved to be an...
  11. Great news ... that's one reason I copied the...

    Great news ... that's one reason I copied the verbose to show the end of the build and the "ChRt at version 1.3.0" in use.

    Having verbose on and scanning those 'Using library' lines can be a great...
  12. On Windows 11, IDE 1.8.16 w/ TD 1.56 beta 2 with...

    On Windows 11, IDE 1.8.16 w/ TD 1.56 beta 2 with Teensy 4.1 : both a normal production and then push Button onto a Beta LOCKED T_4.1

    Downloaded from github : ChRt
    > never downloaded or built...
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    Example sketch on this thread:...

    Example sketch on this thread: Jitter-free-square-wave-doubler-with-TeensyTimerTool

    Showed no SerMon garbage - but excessive output 2000 or 20K .prints per second ( even made sparse ) ended up...
  14. The software solution p#9 , p#3 seems to work...

    The software solution p#9 , p#3 seems to work okay - against fixed single test incoming pin rise ...

    With 10X freq of 500 Hz to 2000 toggles and the printing gets in the way {bottom}, but the...
  15. Indeed - just posted the above on...

    Indeed - just posted the above on Web-site-could-use-a-few-updates-)
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    Posted about another AVR page before? Just...

    Posted about another AVR page before?

    Just came across this one pjrc.com/teensy/interrupts.html

    Not noted except in subtle include that it is AVR and not ARM relevant
  17. The linked page seems to apply to AVR not ARM...

    The linked page seems to apply to AVR not ARM Teensy 4: To use interrupts, you must include the AVR interrupt header.

    On Teensy 4 that wouldn't apply.

    AFAIK - ALL - pins could be actively used....
  18. Seemed from the OP it has to be sync'd to the...

    Seemed from the OP it has to be sync'd to the incoming 48 Hz signal?

    Code in p#9 will start on time ... but likely drift from the incoming signal without some averaging and adjustment in isrPin()....
  19. Software version for p#3 was imagined like this -...

    Software version for p#3 was imagined like this - with assumptions as incorporated.

    Changed to 50 Hz input as it fixed the math for the DEMO PWM trigger - which was only looked at once. The calc...
  20. Asked about 'other things running' - as the...

    Asked about 'other things running' - as the software approach suggested would block for some part microsecond(s) - depending on the interrupt timer rate that works while polling the clock/CYCCNT to...
  21. You did note format was a collective wipe for...

    You did note format was a collective wipe for MBR's - no surprise the just recognized follow on GPT is similar. Format seemed a dangerous add. Does it perform a low level format - or just clean the...
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    Follow up to p#271. To the serialtest2.exe...

    Follow up to p#271.

    To the serialtest2.exe added the read and dump bytes loop at the start - hoping to clear mishandled buffers. LOTS of stored data from Windows. Sometimes still gets lots of bad...
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    This command showing " > " ?? :: if (sensorValue...

    This command showing " > " ?? :: if (sensorValue > 5);
  24. Yes, I saw a comment of yours the other day...

    Yes, I saw a comment of yours the other day indicating we do live in the same corner of the world.

    Phone weather notes: "Gale Warning from SUN 12:00 AM PDT until TUE 5:00 AM PDT" - hazardous seas...
  25. If/when I can ferret out all the needed WIP's I...

    If/when I can ferret out all the needed WIP's I can try some of what I have here ...

    Windows 10/11 now always make GPT's! This is a hassle when cloning a HDD for a Win 7 machine as Win 7 doesn't...
  26. Back power from Hub is odd/good/bad. Indeed once...

    Back power from Hub is odd/good/bad. Indeed once it latches - it sticks/stays on. The External Hub with inbuilt 2.5" HDD carrier here does that. Nice package and assures HDD has needed power - and...
  27. Good work on extending support @KurtE! Back to...

    Good work on extending support @KurtE!

    Back to update and a few minor run/edits on the Beta 1 USB Teensy overwhelming PC/Windows, but not gathered WIP parts for this. I did get an amazon UGREEN...
  28. Pin 13 doesn't have Analog read ability. Try:...

    Pin 13 doesn't have Analog read ability.

    Try:


    int Xpin=??;
    int Ypin=A0; // pin 14
    int Zpin=A1; // pin 15
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    Missed the follow up post - it was on Next Page...

    Missed the follow up post - it was on Next Page and I just did a refresh before the reply. So I confirmed it doesn't help :)

    Roof Done! Time for cleanup and then after lunch ... a TON of wood to...
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    That was the UNSAID conclusion from last post...

    That was the UNSAID conclusion from last post #271 ... : Some method of explicit baseline behavior control : BITBUCKET or RATELIMIT




    @FrankB - quick - look not sure what to do with the...
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    @Paul - when you get back to this ... Minor dual...

    @Paul - when you get back to this ... Minor dual USB2 output updates if used give more feedback : github.com/Defragster/cdcbench
    Bottom Line: this 'fast' Windows machine seems capable of handling...
  32. What does the input look like? "a square wave at...

    What does the input look like? "a square wave at ~48 Hz " - is it constant and does it need to stay timed to that?

    Seems like "ability to add a variable delay." - is a delay in starting or...
  33. That's where "would take coding work" comes in -...

    That's where "would take coding work" comes in - as Paul mentioned -: " the complexity of FlexSPI and figuring out how to program its LUTs awaits you."

    For QSPI there is some LUT, say 'microcode',...
  34. Good the pinout follows the QSPI standard. And...

    Good the pinout follows the QSPI standard. And it does offer needed higher 108 MHz speed, unlike the slower clocked SPI's. And using as SPI won't map to EXTMEM the same way as the QSPI work does.
    ...
  35. What Teensy model? Is the sketch doing...

    What Teensy model?

    Is the sketch doing anything else?

    Maybe there is a better hardware solution?

    Software could set up a 1MHz (?) interrupt that normally does nothing.
    > When you know the...
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    Nice work showing the work and process in getting...

    Nice work showing the work and process in getting it together!



    Repeating that ... from first demo. Seemed like a lot to put together - new posting shows it was more than that.
  37. When the MRAM's were searched during T_4.1 Beta -...

    When the MRAM's were searched during T_4.1 Beta - usable QSPI's weren't found/tested.

    This looks good except for the 1.8V:


    The first linked : Excelon™-Ultra 4-Mbit (512K 8) Quad SPI F-RAM...
  38. If Beta 3 is soon coming with more rolled in...

    If Beta 3 is soon coming with more rolled in edits? Or not I should give it some runtime ...



    Bit of ache in one spot that seems to be passing :) - tomorrow will tell. 2 to 3,000 lbs if 'dry'...
  39. Relinked OP to p#135 - for some reason it shifted...

    Relinked OP to p#135 - for some reason it shifted URL.

    Is p#135 still the golden set of WIP? : p#135 Teensyduino-File-System-Integration-including-MTP-and-MSC

    It shows 1 each to KurtE and...
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    Seems this may be problem indicator: ...

    Seems this may be problem indicator:


    redEBear here again. Can't find old thread from earlier. el_supremo asked me for this .h file so here it is.
    FilenameFunctions.h

    And here's the code....
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    That's what was pulled from this double posting...

    That's what was pulled from this double posting on a new thread : pjrc.com/threads/68491-Teensy-not-communicating-with-Arduino-IDE
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    This from another second thread: and the...

    This from another second thread:


    and the code.

    /*
    * Animated GIFs Display Code for SmartMatrix and HUB75 RGB LED Panels
    *
    * Uses SmartMatrix Library written by Louis Beaudoin at...
  43. This thread :...

    This thread : pjrc.com/threads/68490-Arduino-1-8-13-complie-issues
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    There seem to be conflicting libraries on the...

    There seem to be conflicting libraries on the system - and perhaps a conflict of what Teensy they are for?

    Follow these lines and make sure they are all pointing to the expected version/copy - and...
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    File not found as it isn't where it is looking...

    File not found as it isn't where it is looking for it ?

    See :: /Users/alfredolivas/Desktop/ARDUINO/AnimatedGifs/AnimatedGifs.ino:91:31: fatal error: FilenameFunctions.h: No such file or directory...
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    DMM is a Digital MultiMeter - for measuring...

    DMM is a Digital MultiMeter - for measuring voltage levels of power and signal lines against Ground. Might also be DVM - Digital Volt Meter.

    Will verify polarity as wired as well.
  47. Indeed it was built in the IDE. There is no way...

    Indeed it was built in the IDE. There is no way anyone can replicate 'the configuration in use' there - that's the value of IDE with PJRC install.

    What that showed was the port setup steps seem to...
  48. re p#13 - just for ref - to test an IDE install -...

    re p#13 - just for ref - to test an IDE install - or if wanting to post code on the forum for others to edits run.

    That code runs and works like this - only add is the Serial Print for fun - and...
  49. Seems tried it at /3 to see if RAM2/DMAMEM ran...

    Seems tried it at /3 to see if RAM2/DMAMEM ran faster ... didn't seem much faster and may have been some issue - so wasn't going to mention that ...
  50. Indeed changed out T_4.0 with heat sink and IDE...

    Indeed changed out T_4.0 with heat sink and IDE set at ~900 MHz to a fresh bare T_4.0 without adjusting 'forgotten' clock setting.

    But was first try with an i2c display - kept hanging and assumed...
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