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    This 11/13/2020 post by Paul has some details...

    This 11/13/2020 post by Paul has some details that may relate:

    Teensy40-only-3-3V-power-supply
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    Nope, not as last noted by Paul. Only factory...

    Nope, not as last noted by Paul. Only factory test jig currently preps the NEW MCU for use by the existing/shipping bootloader MCU.

    That is part of the need and wait for those bootloader MCU's. ...
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    @mjs513 - maybe not news? Just clone RAM as a...

    @mjs513 - maybe not news? Just clone RAM as a start in LittleFS.h - AFAIK?

    Renamed - and the outdented config. lines are the ones I mucked with for RAM2 to get fewer and larger BLOCKS
    The begin(...
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    leaving resolved/answered qeustions with what...

    leaving resolved/answered qeustions with what worked can help others who run into the same or similar issues ...
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    For ref - the Teensy 3.2 IS a Teensy 3.1 - the...

    For ref - the Teensy 3.2 IS a Teensy 3.1 - the only real world diff was changing the onboard LDO for higher current IIRC - that and I think the bootloader chip was changed to a new common more...
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    Quit possible. The easy/quick way to see if it...

    Quit possible.

    The easy/quick way to see if it has function would be the 15second Restore.

    >> Press the button and about the (13 to) 15second point the RED LED will blip and then the button...
  7. @luni the best ref to date is the...

    @luni the best ref to date is the pjrc.com/store/teensy40.html - and the thread that it came from - though it is long and spread out.

    A functional example or two would be great.

    Paul regularly...
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    Obviously distractions here are just filling this...

    Obviously distractions here are just filling this thread - not looked at MTP - or updated cores.

    @KurtE and mjs513 - did you get email noting physical mail may be coming with some parts? Maybe...
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    The NXP 1062 MCU has NO onboard Flash, only the...

    The NXP 1062 MCU has NO onboard Flash, only the external Flash chip.
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    @Paul - the teensy Command line utilty was...

    @Paul - the teensy Command line utilty was updated for T_4.x - but presented text still suggest: "The usage text does say it's just for the 3.x series"

    I've seen two posts in recent days - it may...
  11. TyCommander also has a command line version that...

    TyCommander also has a command line version that may offer different or more usable command line parameters.
  12. Extending what FrankB has noted ... Referencing...

    Extending what FrankB has noted ... Referencing this page - See FLASHMEM :: pjrc.com/store/teensy40.html

    Any code header not marked 'FLASHMEM' will be brought to the primary 512KB of RAM1

    The...
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    Updated LFSintegrity on github...

    Updated LFSintegrity on github

    It should compile as uploaded with line #3 :: #define RELEASE // Use this to exclude defragster new functions not in Beta5

    It is all it was before but multiple...
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    At this time the only option is to include a...

    At this time the only option is to include a Teensy boards as is.

    The bootloader is only maintained on the external MCU chip - not yet in production for sale.

    The 1062 MCU is fully controlled...
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    This post also duplicated on thread:...

    This post also duplicated on thread: Questions-on-Teensy4-1-schematic
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    Until Paul may comment or correct ... To...

    Until Paul may comment or correct ...

    To design using Teensy parameters and schematic it must include the external custom bootloader MCU programmed and sold by PJRC. Note however at this time...
  17. Glad the updated code was found - I saw KurtE on...

    Glad the updated code was found - I saw KurtE on the other thread - but no mention of using the current Beta5 of TD1.54 if the code has been included? I hoped to have tested this after KurtE did the...
  18. Great you have 5V handy and it is working. May...

    Great you have 5V handy and it is working.

    May have overstated about the "Card" is the bible ... but it is the 'stone tablets'
  19. Did Paul make the same digitalToggle() changes to...

    Did Paul make the same digitalToggle() changes to Teensy2's? If the digitalToggleFast() doesn't work try the digitalToggle().
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    Bummer it doesn't have more headroom for QSPI...

    Bummer it doesn't have more headroom for QSPI speed :( Something odd the SPI so close to QSPI ???

    Also sad not to have spare T_4.1's. I added 2 more on that order from @KenHahn - and still have...
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    Not seeing any tests of the 64MB WSON QSPI or SPI...

    Not seeing any tests of the 64MB WSON QSPI or SPI since Paul added that chip to the list?

    QSPI 64MB Flash :: ( WSON 8 ) on a fresh T_4.1 it worked. Only 432 KB/sec even with checking preFormat to...
  22. @Paul you could perhaps add a closed "New...

    @Paul you could perhaps add a closed "New TeensyDuino Release" thread on announcements that was manually updated on each Major release.

    Anyone interested could Subscribe to that thread alone. ...
  23. Windows box here 2 generations back and only 4...

    Windows box here 2 generations back and only 4 not 6 core i7-6700 showing 3.4 GHz base speed not 4.0 GHz - its turbo Max is 4.0 GHz and i7-8086 is 5 GHz.

    WavFilePlayer takes 35 seconds initial and...
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    Seems it was testing on the ILI9341 it went to...

    Seems it was testing on the ILI9341 it went to 60 MHz with improved update and asking for more did not show faster completion - which then seemed like clock wasn't advancing as expected because the...
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    The supported Winbond Flash chips used here are...

    The supported Winbond Flash chips used here are the 8 pin variants

    They are 8MB and 16MB - and just received 64MB are being supported ( 8 pin WSON format ) - at least in the LittleFS work in...
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    Been a while since something about the SPI clock...

    Been a while since something about the SPI clock went by - IIRC the clock could hit maybe 60 or 80 MHz.

    YMMV - can't recall the device or thread that was posted on ... or how it was tested - other...
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    @Paul - update to using maintained BitMap to skip...

    @Paul - update to using maintained BitMap to skip formatting blocks before use when they are known to be formatted.
    >> Today's improvement is using the LFS reported used block bitmap to skip...
  28. Also seeing this page :...

    Also seeing this page : pjrc.com/teensy/teensy31.html { for T_3.2 also }

    It has more detail - but also no mention of VIN:


    5 Volt Tolerance on Digital Inputs
    Today most new chips use 3.3V...
  29. The T_3.2 card is the bible it shows :: Vin ( 3.6...

    The T_3.2 card is the bible it shows :: Vin ( 3.6 to 6.0 volts)

    The "5V Tolerant" is in the Digital I/O and Breadboard I/O section? That table doesn't have have entries for the VIN pins of the...
  30. The Teensy 3.2 MCU runs on 5V and has an onboard...

    The Teensy 3.2 MCU runs on 5V and has an onboard 3.3V generator and the design is built around that powered on VIN or VUSB. This issue hasn't come up much for the T_3.2, it has more so on the 3.6...
  31. That seems odd - haven't run on 3.3V power alone...

    That seems odd - haven't run on 3.3V power alone like that - when I cut trace it was with 5V on VIN.

    Just wondering if the Serial line is commented in code?


    int led = 13;

    void setup() {...
  32. Can do a mod - or time to order a rev'd board is...

    Can do a mod - or time to order a rev'd board is okay. You have board(s) left to mod and test and see if it worth doing a rev. But the one I have can be edited as needed to test, if it works better...
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    Ref Links : W25M02GV:: 2Gb Serial NAND Flash...

    Ref Links :

    W25M02GV:: 2Gb Serial NAND Flash Memory with uniform 2KB+64B page size

    W25N01GV:: FLASH - NAND Memory IC 1Gb (128M x 8) SPI 104MHz 8-WSON (8x6)

    @Paul - pm'd post #162 to...
  34. Good to know you found the sketch CS isn't 10 -...

    Good to know you found the sketch CS isn't 10 - but 7. It seems I found and noted that once on an OV Cam thread and had to wonder ... but have been away from that after seeing hardware work with...
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    Good work { finding bad news :) } @mjs513 -...

    Good work { finding bad news :) } @mjs513 - probably stuck on NOR and LittleFS a bit more as very close to something usable there for formatting space in advance of use to prevent 24ms pause on new...
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    Not something for TD 1.54 ? - but want to do some...

    Not something for TD 1.54 ? - but want to do some garbage collection on discarded LittleFS flash blocks in 'spare time' now with that time not needed during a write?

    Just call with the number of...
  37. Also > At a glance that text "-s : Use soft...

    Also > At a glance that text "-s : Use soft reboot if device not online" seems like maybe it should read :: "-s : Use soft reboot if device online" - Where offline implies a soft reboot wouldn't...
  38. Has it been otherwise powered? Mine was in one...

    Has it been otherwise powered? Mine was in one of the beta units and battery was empty. It had been parked more than used - and off/on as the T_4.1 went through and out of Beta and mostly since it...
  39. Didn't expect it had the more recent time fix -...

    Didn't expect it had the more recent time fix - but it has been updated with last TD release it seems to support T_4.1 as well. But that code is public - so if it had the time set during upload it...
  40. Or you can use TyCommander - it doesn't have the...

    Or you can use TyCommander - it doesn't have the time set code during upload which has not yet been made public -it has a thread and github.com/Koromix/tytools

    It is interesting it sees the time...
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    Not sure about the history - but all windows of...

    Not sure about the history - but all windows of each INSTANCE of the IDE works on the set board.

    Multiple instances can be opened - separate start of the EXE.

    However the TyCommander Tool is...
  42. Sure looks like it: 22703

    Sure looks like it:
    22703
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    @Paul - can you give a quick note on p#481...

    @Paul - can you give a quick note on p#481 development - right direction worth some cleanup? And update to defragster github for further review/test?
    > on 16MB QSPI the LittleFS : Traverse takes...
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    @Paul - check New Supplier page :...

    @Paul - check New Supplier page : protosupplies.com/product/teensy-4-1/

    A good page of T_4.1 info as I saw it. My ISP won't allow me to view it at this time ...

    It seemed to have an exhaustive...
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    Regarding notes about LittleFS formatting and...

    Regarding notes about LittleFS formatting and tracking I now have a bitmap of blocks IN USE by LittleFS.

    Nothing to publish yet - but after scanning the core little fs code I found a helpful...
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    Another update to LFSintegrity...

    Another update to LFSintegrity.
    > ack true errors
    > clean up side effects of errors
    > added MAXFILL to compare differnece of ( myfs.totalSize() - myfs.usedSize() ) to not add to files when...
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    Paul - before I got distracted looking for how...

    Paul - before I got distracted looking for how LFS 'deletes' blocks - I noted a lot of refs to 'look_ahead' - that is the WINDOW it seems - how far ahead it will look to find a contiguous space for a...
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    Added file read verify of each bigfile on delete...

    Added file read verify of each bigfile on delete to LFSintegrity. Has to have the number of characters indicated by file.size() and each char is the same as the index '#' of the file.

    @KurtE - if...
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    Indeed I was presented those options and it was...

    Indeed I was presented those options and it was helpful, somewhat. I had a clone and did the PR with 'share my work' - then deleting the PR destroyed my local copy as it was a subset of Paul's - I...
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    As always - it is a Trade OFF ... Cluster Size...

    As always - it is a Trade OFF ... Cluster Size ... Block Size ....

    With edits taking out the hardcoded 256 (block_size) shown in p#474:


    private:
    static int static_read(const struct...
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