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Type: Posts; User: defragster

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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...
  2. 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...
  3. 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...
  4. 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...
  5. 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() {...
  6. 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...
  8. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  16. 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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    > Posted a change in LFSintegrity to 'F'ormat to...

    > Posted a change in LFSintegrity to 'F'ormat to set the 'bCheckFormat = false;' since the code disables that on LLformat. Note: that also enable creation of Root Directories for the deeper...
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    Well I managed to name a FORK after making a...

    Well I managed to name a FORK after making a Clone and it seems right ...



    ...
    github.com/Defragster/LittleFS
    ...


    Heads up - I've been posting LittleFS::quickFormat() when I meant to say...
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    Yes, this is stored in Volatile memory :: ...

    Yes, this is stored in Volatile memory ::

    uint32_t iiblk = 1+(config.block_count /8);
    if ( checkformat == nullptr) checkformat = (uint8_t *)malloc( iiblk );

    If the processor restarts...
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    Note sure if I missed anything in your post -...

    Note sure if I missed anything in your post - except even if background lowlevel formatting is done - this code provides a 'bit' Formatted { Yes/No }. So if a background formatter were to know which...
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    ... the work is done now ... and, at the cost of...

    ... the work is done now ... and, at the cost of 512 bytes in this case, when activated it does a bit test rather than a partial read. A full block read at time of write adds back 581461 us / 4096 ...
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    @Paul - does that look like a better direction...

    @Paul - does that look like a better direction for faster FLASH writes when logging? The only reformats before the disk is full would be if file/directory creation alters in place metadata - AFAIK:...
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    Cell phones are good at seeing the unseen. I had...

    Cell phones are good at seeing the unseen.
    I had to watch a Server boot - where it sits forever doing NOTHING - then you get a couple seconds to respond before it flashes away.
    So I took a video...
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    Another idea for tracking Pre-Formatted Blocks: ...

    Another idea for tracking Pre-Formatted Blocks:

    Same 'method' as before - except alternate implementation:


    Do what Paul does during lowLevelFormat() - read the full block for 0xff with :...
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    Indeed FRAM's not huge and more expensive for...

    Indeed FRAM's not huge and more expensive for sure.

    The LilttleFS No Re-Format on SPI gave 452 KB/sec (2 pages back - 16728000Bytes in 37 seconds - before KB/sec printed) - so Fram's (no QSPI...
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    Okay - the reason for the big file fail on the...

    Okay - the reason for the big file fail on the RAM is increased overhead of the small blocks on RAM - which may make sense when not using 8 or 16 MB of PSRAM. Moving to larger blocks should be...
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    @Paul - did you see the note about considering an...

    @Paul - did you see the note about considering an alternate set of params for LARGE LittleFS_RAM p#424? I didn't get them right in my edit - but larger blocks will minimize wasted 'metadata'...
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    That seems to be a digikey packaging notation ::...

    That seems to be a digikey packaging notation :: W25Q128JVSIQTR-ND - Tape & Reel (TR)

    The rest of the main part# and info appears the same.
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    Seems to have made it right. For Windows ZIP...

    Seems to have made it right.

    For Windows ZIP extract the file is :: {arduino}\lib
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    Back to the real issue in #422 (tiny alloc blocks...

    Back to the real issue in #422 (tiny alloc blocks in BIG PSRAM) doing this for LittleFS_RAM() { } :: bool begin(()
    > it runs maybe 3-5X faster - but I get LFSintegrity file verify failure so...
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    opps for the big interruption to find something...

    opps for the big interruption to find something that was obvious ... Large RAM needs larger blocks ... and not knowing the file sys functions returned 64 bit values :( :mad:

    back to the point of...
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    @Paul if you look at this - things have changed -...

    @Paul if you look at this - things have changed - mostly the details printed in samples sketch - current copy below, AND the print format strings used ????
    >> Just seeing the LittleFS functions...
  41. Thread: Teensy Qt

    by defragster
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    Downloaded on Win10 - did UnBlock the exe and it...

    Downloaded on Win10 - did UnBlock the exe and it runs and seems okay.

    DONE :: Went to first post and placed:

    You can find it on my GitHub page at : github.com/Koromix/tytools (and the release...
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    Post #2 here linked to Paul's post #4 on the...

    Post #2 here linked to Paul's post #4 on the other thread. There is more info in the rest of that thread - post #2 has a mapping of the pins doc courtesy of @KurtE - and indicates the swap 1-4 goes...
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    Got the current github LittleFS - knew my gated...

    Got the current github LittleFS - knew my gated changes only applied to Q/SPI :: and RAM showed the same .size()==0 but with that and edit above here is output on one T_4.1 with RAM then QSPI:

    ...
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    Interesting to see you got the ZERO file.size()...

    ...

    So I wonder why the Beta board is about 1.5 times faster then the two I soldered up. The recent board chip came from PJRC, the 2nd one came from Digikey, and not sure where Paul got them for...
  45. @jensa - did forum search on vbat and this post...

    @jensa - did forum search on vbat and this post by Paul was in the early list.

    @drewhamiltonasdf - check this post::

    Teensy40-only-3-3V-power-supply

    Good memory @BriComp - not even 2 weeks -...
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    Getting the 64MB Flash from ProtoSupplies - Ken...

    Getting the 64MB Flash from ProtoSupplies - Ken noted the center open solder pad - making sure it didn't get shorted during assembly - so as long as not too close in the middle - and soldered square...
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    With some forum searching example will show...

    With some forum searching example will show usage. All the registers are already named and pointed to in TeensyDuino installed header files. Bing and google can find forum stuff as well or better...
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    Best to use native ARM register access rather...

    Best to use native ARM register access rather than the ported attempt to support the old way.

    Made a GPIO summary note here to recent info maybe it helps:

    ...
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    I saw this item on the new Teensy Distributor...

    I saw this item on the new Teensy Distributor page: Proto Supplies : MP2315 Mini Adjustable DC-DC Step-Down Module
    It is adjustable and step down only - but has onboard resistors to solder to get...
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    Ahhh Beefy ... nice it had a unique name...

    Ahhh Beefy ... nice it had a unique name SublimeText found it.

    I need to put the github fresh copy of LittleFX to confirm that issue I noted on file.size() from local copy corruption ...
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