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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.
  2. 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...
  3. 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'...
  4. 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...
  8. 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.
  12. 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...
  13. 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...
  14. 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 ...
  15. 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...
  16. Indeed the BUS factors up with CPU speed. With...

    Indeed the BUS factors up with CPU speed.

    With enough cooling it typically works - out of spec - and hard on the chip reducing lifespan even when cool enough with higher voltage in use ... typical...
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    I have not tried that. Current testing is trying...

    I have not tried that. Current testing is trying to USB print at fastest possible 480 Mbps speeds to find a bottleneck repro case.

    This didn't happen at all the first days of testing this - even...
  18. @Frank - where was the newer improved LittleFS...

    @Frank - where was the newer improved LittleFS source seen?
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    Third time: Teensy getting Programmed - this time...

    Third time: Teensy getting Programmed - this time a button push - and all Teensy I/O goes offline: USB and Button HID.

    Plugged in a SFun Redboard and it chimmed in and then out multiple times no...
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    @KurtE - thanks for the details/attention ......

    @KurtE - thanks for the details/attention ... neglected to note is wasn't ___Async() in use.

    So in that case the Isr()'s will get called - data recorded/overwritten - but not attended to in loop()...
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    I just happened to have the code open and added...

    I just happened to have the code open and added += on all the prints per group and redid the posted math quickly and the reported sums always matched the ideal sums.

    The quick feed to excel isn't...
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    @KurtE can correct details if needed ... but ......

    @KurtE can correct details if needed ... but ...

    If the tft.updateScreen() is the DMA driven code - AFAIK that 'generally' runs parallel to the processor loop() and interrupt code.

    If DMA - it...
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    I had not checked that print returned only the...

    I had not checked that print returned only the number of 'sent' characters.
    >>TESTING THAT : print always returns the number SENT, whether printed or not!

    ... Zzzz's now ...

    As far as...
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    Follow up to prior posts. The SerialTest2.exe...

    Follow up to prior posts. The SerialTest2.exe running a bit longer ... 60076.64 seconds

    Printed .ino :: stats: 100K=400001 less=148 repeated 1 rmax=2000000

    It seems to run a bit slower when...
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    Glad to help! It can be a bit cleaner :: int...

    Glad to help!

    It can be a bit cleaner :: int *vv = (int*)(0x2027ff00 - 2 * sizeof(int));

    But that hardcoded number "0x2027ff00" is the 1062's top of DMAMEM less the bytes used for CrashReport...
  26. Should have made clear - that is LINK/text to...

    Should have made clear - that is LINK/text to bootloader chips - for base Teensy PCB boot flash - not add on QSPI ...
  27. Reflowing has helped at least three PSRAM users -...

    Reflowing has helped at least three PSRAM users - interesting if it helps here.

    NOTE from before - was this and backwards WRT "M" and "Q": pjrc.com/store/ic_mkl02_t4.html


    Supported Chips
    ......
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    Opps - forgot .... That only writes to the...

    Opps - forgot ....

    That only writes to the cache and restart will leave it there added : arm_dcache_flush( vv, sizeof( int)*2 );




    void setup() {
    Serial.begin(230400);
    int *vv =...
  29. It was easier than building it myself :) 26180

    It was easier than building it myself :)

    26180
  30. JUST TAUNTING YOU MIKE :) 26179 Indeed - It...

    JUST TAUNTING YOU MIKE :)

    26179

    Indeed - It works as advertised!

    Note: that is Win 11 - it asked 'What to do with Teensy' - and I picked 'explore disk'
  31. Bummer @Frank - maybe some flux and reflow and...

    Bummer @Frank - maybe some flux and reflow and cleanup? You said it was pre-soldered - so it should be good ... but worth a try.
  32. Nice photoshop Mike - post the .hex :)

    Nice photoshop Mike - post the .hex :)
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    That is a relief! Interesting if Device Mgr...

    That is a relief!

    Interesting if Device Mgr shows any notes under EVENTS for recognizing it like it does here.

    I got the Win 11 ISO to install on Flash drive - but the i7-6600U CPU on my ~6 GEN...
  34. Found another T_4.1 with PSRAM and SMALLER legged...

    Found another T_4.1 with PSRAM and SMALLER legged QSPI NOR FLASH and the same HEX also works there.
    It was used in long ago testing of LFSIntegrity - as contents show - except no date.


    Stopped...
  35. Ran this p#287 HEX on T_4.1 with W25Q512JV*IQ...

    Ran this p#287 HEX on T_4.1 with W25Q512JV*IQ here and it works!
  36. I have one here ending in "Q" - is the "M" the...

    I have one here ending in "Q" - is the "M" the odd one out?
  37. ... and me :( ... I find some wonderful things...

    ... and me :( ... I find some wonderful things ...

    @Frank - indeed both on T_4.1 do work. Is the QSPI Flash WSON style or just 8 leg chip? Indeed if WSON it may be NAND not NOR
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    Using the following - should show the values...

    Using the following - should show the values survive a Warm restart:
    DMAMEM int v1;
    DMAMEM int v2;

    DMAMEM is not forcibly reset/zeroed like RAM1 on startup.

    <edit> BUT writes to DMAMEM go...
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    Downloading Win 11 ISO installer to new Write...

    Downloading Win 11 ISO installer to new Write protectable Flash drive for future use and so I can do an install on another machine.

    Next time this machine takes All Teensy offline, nothing shown...
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    So after an IDE Verify build and Button push...

    So after an IDE Verify build and Button push steps the Teensy loader did program? Look at Teensy Loader "Help / Verbose" for log info showing that - please copy and post.

    But after programming by...
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    @Paul - Win 11 here as noted now has been running...

    @Paul - Win 11 here as noted now has been running since End of July,2021.

    p#3 above indicates Win 11 doesn't see a proper driver match for complete install in some fashion.

    Though except for...
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    The steps to test were noted as : Open IDE to...

    The steps to test were noted as :
    Open IDE to simple Blink and do a Verify build with USB type Serial for the correct Teensy Board
    - that should open the Teensy Loader.

    Then pushing the Teensy...
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    After 1700 seconds the T_SerMon is paused ......

    After 1700 seconds the T_SerMon is paused ... perhaps to return - running againf a T_4.1 with SerialTest2.ino.
    Running against the EXE the mode was about 220 Mbps, running against T_SerMon the mode...
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    NOTE: Running Dual Serial with LOW OUTPUT (for...

    NOTE: Running Dual Serial with LOW OUTPUT (for the Rate table) on request should not have any effect on primary Serial output. TyComm is used to get that on 'Send'.

    Updated - the BOGUS number was...
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    @wenxlee - winver here show Windows 11 Pro ::...

    @wenxlee - winver here show Windows 11 Pro :: Version 21H2 (OS Build 22000.258)

    What is reported there?

    For the second time my USB has gone DEAD (flash drive okay, but NO Teensy can be seen) ,...
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    @Paul - not sure if this VERBOSE log shows you...

    @Paul - not sure if this VERBOSE log shows you anything - at the end.

    <edit>: As before it works fine on restart. Both times USB was lost on IDE Upload of sketch. The first time the wonder was...
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    Updated 'Test2' with 9 digit HEX serialized...

    Updated 'Test2' with 9 digit HEX serialized output : github.com/Defragster/cdcbench

    Use serialtest2.c and serialtest2.ino
    > The INO prints a '9 char' HEX serialized set of messages - it was hard...
  48. Have fun. It is great for USB Host with great 5V...

    Have fun. It is great for USB Host with great 5V power.
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    What happened trying this last line above: ...

    What happened trying this last line above:

    Pushing the Button should go through HID mode and identify the device to Teensy software parts. May not work beyond that - but that is part of the test.
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    Seems I got Win 11 before 9/27 - the date on the...

    Seems I got Win 11 before 9/27 - the date on the events below.
    <edit> Confirmed - Win 11 installed here about: Saturday, July 31, 2021 12:30 AM

    Maybe my early install grandfathered in some...
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