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    No reason to include " defined(__IMXRT1052__) " -...

    No reason to include " defined(__IMXRT1052__) " - the 1052 was dismissed long ago after 1062 was made the chosen MCU for T_4.x and is no longer supported or maintained.
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    More info needed ... New T_4.1's - soldered in...

    More info needed ...

    New T_4.1's - soldered in any way after working to blink from new? Every programmed with anything to work?

    USB Host is the internal pin array to Host USB devices - was...
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    I got Mail! edit: As with mjs513 that post was...

    I got Mail!

    edit: As with mjs513 that post was no delay and no dupe.
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    ... after reading "20 msec. callback. In the...

    ... after reading "20 msec. callback. In the function called I have a 10 msec. delay" delay of 1.5 ms wasn't known

    @luni has timers that can do a one shot - assume it could be triggered for...
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    If this was posted after fixing ... no notice was...

    If this was posted after fixing ... no notice was sent/received.

    Double posted? - no 'spinning dots' - but 'hourglass' - completed and double posted this DUPE when it returned up a level ..
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    If this was posted after fixing ... no notice was...

    If this was posted after fixing ... no notice was sent/received.

    <edit>: oppps - probably marked 'sent once' with prior messages since last logged on
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    @strud had a DUPE post I removed. {was #6 after...

    @strud had a DUPE post I removed. {was #6 after Faster-way-to-read-in-digital-inputs-into-a-byte-value

    Seems there may be a timing issue with the wait then failed coordination recognizing 'posted'...
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    @strud had a DUPE post I removed. {was #6 after...

    @strud had a DUPE post I removed. {was #6 after Faster-way-to-read-in-digital-inputs-into-a-byte-value

    Seems there may be a timing issue with the wait then failed coordination recognizing 'posted'
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    Still no email notifications - for this post or...

    Still no email notifications - for this post or the usbhost thread.

    Also earlier post took some time in browser 'spinning' then said - "leave and the post dies" I ignored and the post had...
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    Still no email notifications - for this post or...

    Still no email notifications - for this post or the usbhost thread.

    Also earlier post took some time in browser 'spinning' then said - "leave and the post dies" I ignored and the post had...
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    Use of any delay will block and not return to...

    Use of any delay will block and not return to loop() or other code - except higher priority interrupts

    Code shown has 20 msec delay - then sits 10 msec. If this is the desired behavior the timer...
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    Still not seeing usual 'Subscribed' emails for...

    Still not seeing usual 'Subscribed' emails for new posts?
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    Note: no incoming mail " ... has just replied to...

    Note: no incoming mail " ... has just replied to a thread " for the post:


    Today, 07:10 AM #15
    PaulStoffregen
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    Times look the same to the new from here. Did a...

    Times look the same to the new from here. Did a cache flush - maybe if not done there is a redirect lookup?



    C:\T_Drive\Programs\iperf>ipconfig /flushdns
    Successfully flushed the DNS Resolver...
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    There is this Wiki:...

    There is this Wiki: github.com/TeensyUser/doc/wiki

    Perhaps it could be home to such a collection. Not sure if any are covered, there is an 'Electronics' area - but didn't see such topics there now.
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    Forum still seems #'s noted in p#3 as old: ...

    Forum still seems #'s noted in p#3 as old:

    >ping forum.pjrc.com

    Pinging forum.pjrc.com [96.31.69.28] with 32 bytes of data:
    Reply from 96.31.69.28: bytes=32 time=83ms TTL=46
    Reply from...
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    Seems to have gotten right here: >ping...

    Seems to have gotten right here:

    >ping pjrc.com

    Pinging pjrc.com [162.254.150.250] with 32 bytes of data:
    Reply from 162.254.150.250: bytes=32 time=83ms TTL=44
    Reply from 162.254.150.250:...
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    Glad it works. No idea of the SDK - just a rumor...

    Glad it works. No idea of the SDK - just a rumor in that comment from the person that saw it there - noted in posts - likely the SDK from NXP for the processor ...

    There is a similar older post...
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    Given pins on the T_4.1: a manufactured cable...

    Given pins on the T_4.1: a manufactured cable with female end would be more 'normal'

    pjrc.com/store/cable_usb_host_t36.html

    Similar may be at Amazon like 2 pack of...
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    It can be found (on windows?) in:...

    It can be found (on windows?) in: %appdata%\..\local\Arduino15\packages\teensy\hardware\avr\0.58.3

    Where the last 'folder' is the installed version.

    ALSO: instead of modifying the boards.txt...
  21. Good to know - never did ALL since there is only...

    Good to know - never did ALL since there is only ONE user here. But easy enough to answer differently and not surprising it might get confused then.
  22. Glad it is now working - with some added hassle....

    Glad it is now working - with some added hassle.

    When the IDE offers 'Update' it uses the installer for sure. In early Beta I was doing 'UnZip' to run and the first Update abandonded the UnZip...
  23. I sit corrected! And confirmed: T_4.1 after 15...

    I sit corrected! And confirmed: T_4.1 after 15 sec Restore does present as RawHID

    It is running 'Factory' Blink - but online as RawHID and ready for upload without a Button push!:
    30633
    So not...
  24. Hanks, first read suggested it ran some time -...

    Hanks, first read suggested it ran some time - but re-reading suggested that was the time to make the build work.

    Would be interesting if the same build could be done with the Arduino IDE to see...
  25. Nah, Teensy is unique in a number of ways. It is...

    Nah, Teensy is unique in a number of ways. It is programmed over USB - but PJRC presents the Teensy as a RAW HID device to perform the upload. This happens on the Button push - or when the running...
  26. With IDE 2 what 'version #' of Teensy was used...

    With IDE 2 what 'version #' of Teensy was used initially with board manager?

    Current is 1.57.2 but there is a Beta for 1.58.3 that is noted as 0.58.3 in board manager.

    The Beta is started with...
  27. As noted in p#2 - it is doing well if running...

    As noted in p#2 - it is doing well if running 'Blink' after the 15 second Restore, but like when factory new that Blink code does NOT present as a USB device ... that simple Blink fits (IIRC) in a...
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    Good link @shawn As shown there the missing...

    Good link @shawn

    As shown there the missing piece is this line. It wasn't easy to find, but it was found as noted in the SDK to enable and made the access work:



    void setup() {
    SNVS_LPCR...
  29. As noted on T_4.1 spec Card - VIN should be 3.6...

    As noted on T_4.1 spec Card - VIN should be 3.6 to 5.5 V Max.
    Somewhere over 5.5V components will suffer damage.

    Damaged components can go in various ways - sounds like something has gone to...
  30. RAM2 / DMAMEM is cached for sure, and it and the...

    RAM2 / DMAMEM is cached for sure, and it and the 32KB cache are unique to the T_4.x's 1062 architecture.

    The cache does 'get in the way' using DMAMEM needing that extra attention - but it not only...
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    Cool: github.com/ssilverman/QNEthernet...

    Cool: github.com/ssilverman/QNEthernet

    no before - here is after/current with TD 1.58b3:


    "C:...\arduino_build_IPerfServer.ino/..."
    teensy_size: Memory Usage on Teensy 4.1:
    teensy_size: ...
  32. Indeed, got lost after following Tindie link ......

    Indeed, got lost after following Tindie link ... meant to add that
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    Indeed, the build output doesn't indicate Bytes -...

    Indeed, the build output doesn't indicate Bytes - though that is the implied typical measure. And the linked page is sparse with the word BYTE as well and shows 'K' without a 'B' indicator.
  34. justifies general rule: don't print in an ISR ...

    justifies general rule: don't print in an ISR

    Though doesn't justify a stuck CPU if there was a good reason ... debug or other ... for wanting that done there.

    Since it is in the more rare...
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    Yes, the line: RAM1: variables:47424,...

    Yes, the line: RAM1: variables:47424, code:161560, padding:2280 free for local variables:313024

    Shows the static allocations for the resultant binary.

    More info on T_4.x memory is at:...
  36. It might be triggering something in the power up...

    It might be triggering something in the power up sequence: See pjrc.com/store/ic_mkl02_t4.html

    @Paul made a good post about the process - maybe that would be good linked to that section? It...
  37. Those printed results are showing memory use and...

    Those printed results are showing memory use and allocation of internal RAM - there are two blocks of 512 KB.

    If PSRAM memory is present it is detected and prepared for use only at run time.

    In...
  38. Yes, yes you did make a text to speech example. ...

    Yes, yes you did make a text to speech example.

    On a T_4.1 with Rev D Audio board and the ZIP wav files dropped on SD root and placed in the T_4.1

    Has a decent word grasp and does well or makes...
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    The Teensy 4.1 CARD ideally delivered with the...

    The Teensy 4.1 CARD ideally delivered with the Teensy, or linked on PJRC.COM, shows pins associated with SPI and SPI1 on the front and SPI2 on the bottom.

    The color code for SPI is 'green bubbles'...
  40. Is there an 8 second delay in the restarting or...

    Is there an 8 second delay in the restarting or no real delay?

    It might be crashing. On computer with SerMon connected it might show that:


    void setup() {
    Serial.begin(115200);
    while...
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    What OS? Pestering the computer 20 times a...

    What OS?

    Pestering the computer 20 times a second with a pair of moves might have triggered it?

    The Button should take the Teensy to Bootloader with a RED LED showing. If Teensy Loader is...
  42. Only SPI I spent time with was for the:...

    Only SPI I spent time with was for the: ...\hardware\teensy\avr\libraries\XPT2046_Touchscreen\XPT2046_Touchscreen.cpp

    It is blocking - but does do stepwise SPI transfer in: void...
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    Thanks - almost deleted before posting when the...

    Thanks - almost deleted before posting when the numbers were so similar. There was a sketch once that showed better improvements up to 16KB - and lesser below that - maybe it was the SD Card in use...
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    Anything can work in steps of some couple MHz...

    Anything can work in steps of some couple MHz auto adjusted versus requested value based on clock math.
    Certain select frequencies are 'sweet' spots: 600 Max in Spec, 528 optimal speed and current...
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    Looks like "Pit Cap with LCD Animated Eye From...

    Looks like "Pit Cap with LCD Animated Eye From Andrea's Top Hat $95.00" uses an RP2040:


    This is the same LCD Eye Circuit Board that Andrea uses on her Top Hat on BattleBots! It features a 1.28"...
  46. Only two posts one after updated here - but a...

    Only two posts one after updated here - but a couple dozen thread readers of: forum.pjrc.com/threads/72284-Arduino-IDE-2-0-4-is-out
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    Run this example:...

    Run this example: ...\hardware\teensy\avr\libraries\SdFat\examples\bench\bench.ino

    You can adjust buffer size.

    Just now on 'used' cardwith data 512B Read and write as fast as 4KB and 16KB ......
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    quick look - side note: // ...

    quick look - side note:


    // Serial.print(CrashReport);

    long unsigned debug_start = millis ();
    while(!Serial && ((millis () - debug_start) <= 5000UL))
    {
    ...
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    Very welcome.

    Very welcome.
  50. That's a huge difference from some attention to...

    That's a huge difference from some attention to details
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