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    Also make sure you have Teensy 4.0 select from...

    Also make sure you have Teensy 4.0 select from the Boards menu drop down.
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    I do agree with you UAVCAN is a bit confusing and...

    I do agree with you UAVCAN is a bit confusing and it got more confusing as time progressed as least with the version I was using. Be interesting to see your implementation of the CAN Aersospace and...
  3. LittleFS Now Supports File Creation and...

    LittleFS Now Supports File Creation and Modification Dates/Times

    As noted in Post #2 we used the custom attributes (lfs_setattr and lfs_getattr) to assign file create and modification dates. ...
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    Looking good from what I see, but I am still on...

    Looking good from what I see, but I am still on my first cup of coffee. :)
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    Haven't looked in a few years but if are you...

    Haven't looked in a few years but if are you referring to UAVcan or CANAerospace. Did a port of UAVCan to the T3.x's about 3 years ago but kind of left it by the wayside, they were making the...
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    Thanks for the info Brian. Wondering if its an...

    Thanks for the info Brian. Wondering if its an issue with the connector have to see if I can jury rig something up if I can find my D-sub connectors - have a couple around. Probably easier just to...
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    Out of curiosity what kind of cane are you using...

    Out of curiosity what kind of cane are you using and what sensor.
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    Ditto from me as well. I only hit it once or...

    Ditto from me as well. I only hit it once or twice as well. Did just have one thing happen when I hit PGM button one right after another. 1st did the upload second lock the T4 with only the Orange...
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    Got it. Just to close the SerialMonitor test out...

    Got it. Just to close the SerialMonitor test out got to 2,844,425,876 before stopping. And just a side note in @brtaylor test sketch he had a delay(10) between prints. Did some experimenting and...
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    Got it thanks. By the way is there any other way...

    Got it thanks. By the way is there any other way you want us to test Serial monitor to make sure its working? Usb-lines/sec seem to be a good job of stressing.

    :)
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    @Paul - @defragster Been running both sketches...

    @Paul - @defragster

    Been running both sketches now for about 6 hours and still seems to be working on a Windows10x64 i7-8700K.

    usb lines per second


    count=940,733,502, lines/sec=503292
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    Couldn't sleep and saw your message so figured...

    Couldn't sleep and saw your message so figured might as well test it out.

    Set up 2 T4's, one locked and 1 unlocked. Running the original tempMon sketch on one and the usb lines per second sketch....
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    Sticky: Yep tested it a littler while ago - works with...

    Yep tested it a littler while ago - works with FASTER but not FASTEST - didn't try the other settings.
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    Sticky: I don't have a T4.1 with a NAND chip soldered on...

    I don't have a T4.1 with a NAND chip soldered on the bottom but I do have a QSPI test board that I put together to test the different chips that could go on via QSPI. Ran your test sketch with a...
  15. Nice work. Very cool example using all the...

    Nice work. Very cool example using all the features of the Input/Display board. During beta testing I only played with the display using @KurtE's ILI9341 library and like you found the inverted...
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    Thanks for letting us know what the original hard...

    Thanks for letting us know what the original hard freeze resolution was. Have to keep that one in the back of the mind.
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    Just as a data point - with me it was a second or...

    Just as a data point - with me it was a second or two (didn't measure but was quick) running the USB test. With the original test sketch -yep ran about that amount of time.
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    Yep figured a good point to do that so have 2...

    Yep figured a good point to do that so have 2 data points win 10 and win11
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    @Paul Out of curiosity I ran the...

    @Paul
    Out of curiosity I ran the usb_serial_print_speed sketch.


    ...
    ...
    count=10037586, lines/sec=0
    count=10037587, lines/sec=0
    count=10037588, lines/sec=0
    count=10037589, lines/sec=0
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    Think the issue actually goes back to the T4 beta...

    Think the issue actually goes back to the T4 beta testing days. It was first identified in this post: https://forum.pjrc.com/threads/54711-Teensy-4-0-First-Beta-Test?p=213179&viewfull=1#post213179...
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    @defragster If I remember right the issue...

    @defragster

    If I remember right the issue boils down to the SerMon implementation that is part of the current Arduino IDE 1.8.xxxx. Just as a hunch I downloaded IDE 2.0 just to test the Serial...
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    Sticky: posted this on the other thread...

    posted this on the other thread (https://forum.pjrc.com/threads/68199-Teensy-4-1-Lockup?p=288611&viewfull=1#post288611) but may be more appropriate here.
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    As @defragster mentioned that depending on the...

    As @defragster mentioned that depending on the crash crashreport will give you a means to find where the error is but if you are loosing the Serial Port and the T4.1 doesn't restart then it won't...
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    Sticky: Ditto to what @KurtE just said. Fantastic job...

    Ditto to what @KurtE just said. Fantastic job especially considering all the moving pieces you had to deal with !!!!!

    Ran a couple of things and all seem like they are working on a Windows10x64.
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    From my perspective don't think there is anything...

    From my perspective don't think there is anything additional bugs - in other words nothing that hasn't already been identified
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    Decided to re-run CoreMark on a locked T4 just to...

    Decided to re-run CoreMark on a locked T4 just to see if there were any differences:


    Locked T4: 2313.57
    Unlocked T4: 2313.57

    No change but didn't really expect there to be.
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    A question - does the same thing happen if you...

    A question - does the same thing happen if you are only using a single T4 locked. When I tried a T4.1 it reset no issue - tried a Locked T4 it gave me an error saying it can not reset and I had to...
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    @defragster - did see this note on the tytools...

    @defragster - did see this note on the tytools github page
    Which I think is what you are saying.
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    Thanks for the explanantion makes sense now. ...

    Thanks for the explanantion makes sense now. Still learning :)
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    I am assuming you mean by 'has a board online"...

    I am assuming you mean by 'has a board online" that a teensy is hooked and powered up. Well, they are grayed out when the locked T4 is online (looked right after I uploaded a sketch. I can open a...
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    No particular reason for pin 7. Think that was...

    No particular reason for pin 7. Think that was just where we had hooked up at time. Easy enough to make the change.

    EDIT: PR issued to update to pin6 for spi examples.
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    Open Hex File Button seems to available but if I...

    Open Hex File Button seems to available but if I go to operation "Reboot" and "Program" seem to be grayed out - not sure thats normal (grayed out even if auto is unselected)
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    PR issued,...

    PR issued, https://github.com/PaulStoffregen/LittleFS/pull/27, changing the comment to "usage". But primarily the PR was issued to update keyword.txt to add "LittleFS_SPINAND" and "LittleFS_QPINAND"...
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    Wouldn't worry too much about LittleFS @KurtE and...

    Wouldn't worry too much about LittleFS @KurtE and I have been testing the heck out of it while testing MTP. Think the only thing we haven't tested was QSPI since we have been primarily using the...
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    @KurtE Just made the changed and on my locked T4...

    @KurtE
    Just made the changed and on my locked T4 shows even better:

    344
    CrashReport:
    A problem occurred at (system time) 11:53:50
    Code was executing from address 0x88
    CFSR: 82...
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    Went back to the Beta1 thread and found @KurtE's...

    Went back to the Beta1 thread and found @KurtE's initial timing timing test: https://forum.pjrc.com/threads/67989-Teensyduino-1-55-Beta-1?p=288241&viewfull=1#post288241, which shows it was 1011ms. ...
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    Just ran it here on my Win10x64 machine and got...

    Just ran it here on my Win10x64 machine and got very similar results:

    With USB type of Serial = 412
    With USB Type of: MTP Disk (experimental) = 6048

    This is on a locked T4 with the latest...
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    @Paul As @defragster said Last night and...

    @Paul

    As @defragster said

    Last night and this morning I tried to fault the Locked T4 doing successive uploads of Tim's code4code sketch and then hitting the pgm button a couple of times in...
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    Something different - went to install TD but gave...

    Something different - went to install TD but gave me an error that it could upload to the folder. Checked in Task Manager and had 2 copies of Teensy_reboot.exe still running. Once closed it...
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    Been exercising the locked T4 with LittleFS and...

    Been exercising the locked T4 with LittleFS and SD (non MTP tests) without any issues (didn't expect any) just testing if any upload issues. Had a stalled upload once today, non-double LED, just...
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    Short answer yep about 1.5mins Memory Usage on...

    Short answer yep about 1.5mins

    Memory Usage on Teensy 4.0:
    FLASH: code:1002292, data:326520, headers:8528 free for files:694276
    RAM1: variables:90976, code:39320, padding:26216 free for...
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    Ok thanks for the reminder. I did just run it...

    Ok thanks for the reminder. I did just run it and seemed to take less than 5 seconds or so from when TeensySize was printed.

    Curious about the slowness as well. Never did a timing comparison...
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    I had thought that the windows pop up was showing...

    I had thought that the windows pop up was showing the file that was loaded - oh well.

    As to your question about the 1MB file - not sure which one that was but the ones I used to test with the...
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    @Paul - @defragster - @KurtE Just noticed...

    @Paul - @defragster - @KurtE

    Just noticed something off (maybe this is intentional) but when using the Locked T4 I noticed that the TL window shows the hex name of the sketch at the bottom of the...
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    At least for me - no didn't have that patch in...

    At least for me - no didn't have that patch in the core for beta2. Just added it and re-ran it with MTP.h included. It worked. Seemed to come up faster as well:
    25803
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    Just tried running the sketch with all the...

    Just tried running the sketch with all the headers commented out except for MTP.h and using MTP Disk (Experimentatl) and crash report is not printing on a Win10x64 machine.
    25800
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    @KurtE - trying to catch up on things and since I...

    @KurtE - trying to catch up on things and since I have pretty much the same library configs as you do I ran your test sketch. Hit the enter and waited - closed the serial monitor and reopened it and...
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    @Paul Finally after I don't know how many...

    @Paul

    Finally after I don't know how many uploads I finally ran into the issue with the dual LEDs blinking on an upload with the Arduino IDE using the locked T4. As @defragster and @KurtE...
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    As I said I am only using the Arduino IDE for...

    As I said I am only using the Arduino IDE for uploads and only Tycommander for capturing serial data or multiple Teensies. Using the IDE I have uploaded sketches (mostly testing MTP and LittleFS and...
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    @Paul Pretty much doing the same type of...

    @Paul

    Pretty much doing the same type of testing with the locked T4 as @KurtE with 1.55beta2 and not seen any issues with uploads.

    Tried to duplicate @KurtE's issue with the both LEDs flashing...
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