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  1. That pause per packet/block across T_3.6 writing...

    That pause per packet/block across T_3.6 writing ( where the hsrun speed and chip voltage is dropped ) allows the clocks to be restored before the next transfer when the Teensy issues the 'block...
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    Not sure if it requires 'verbose' on compile -...

    Not sure if it requires 'verbose' on compile - but the Teensy build - at least with the latest TeensyDuino 1.54 Beta 9 release exposes some details of memory allocation:


    Memory Usage on Teensy...
  3. Not tried - but that indeed seems like nice work....

    Not tried - but that indeed seems like nice work.

    T_3.6 issues over 120 MHz is the fact that the sketch as compiled sets core clocking based on the compile speed - doing the speed drop to 120 MHz...
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    Leaving the INO empty and coding into a .cpp file...

    Leaving the INO empty and coding into a .cpp file in the folder and completing the needed includes and prototypes might present a valid usable source file, where the IDE build preprocesses that in...
  5. Have had similar (non)response on their forum -...

    Have had similar (non)response on their forum - it is nothing like the focus and attention here. Too many variants of hardware ( and software split : Arduino and python ) and in this case they ported...
  6. Yes, - old 2019 thread linked below but the lib...

    Yes, - old 2019 thread linked below but the lib used was touched in recent days

    github.com/WMXZ-EU/uSDFS

    Thread :: pjrc.com/threads/55821-USBHost_t36-USB-Mass-Storage-Driver-Experiments

    22...
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    In Beta it was found that activating many or ALL...

    In Beta it was found that activating many or ALL the 7 UART Serial between two Beta T_4.0's caused startup trouble when one was Off and the other was On.

    > UART Serial Rx and Tx are held high...
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    This part was off base - didn't read the Audio...

    This part was off base - didn't read the Audio adapter - saw T_4.0 and PCB and assumed the under pads were used ...
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    Does the SD have good power? Are the wires...

    Does the SD have good power? Are the wires properly connected? An early for T_4.0 breakout ended up with swapped wires and that needed revised,

    Post in recent days says TeensyTransfer works on...
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    See Component Locations here :...

    See Component Locations here : pjrc.com/store/teensy41.html#tech

    Looks like C27

    2.2 uF on schematic
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    Awesome to hear it works there! The QSPI speed...

    Awesome to hear it works there!

    The QSPI speed is what it is basically - at least as Paul sees as safe.

    There are notes in the Little FS thread - it might not be pushed to MAX 133MHz clocking...
  12. As mjs513 said - just a clean TD 1.54 Beta 9 ...

    As mjs513 said - just a clean TD 1.54 Beta 9

    Look at example/lfsintegrity.ino

    Something like:


    //#define TEST_RAM
    #define TEST_SPI
    //#define TEST_QSPI
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    If dev there with SPIFFS is still in the state...

    If dev there with SPIFFS is still in the state the data image would be lost to grow it .... Much better to use the LittleFS. Spiffs was abandoned by its own author some time back (and AdaFruit and...
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    Not indicated which Teensy? T_3.2 does if a...

    Not indicated which Teensy? T_3.2 does if a crystal is added, and T_3.5 and later have working RTC onboard without an added crystal.
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    Good, that also shows that part of the IDE+TD...

    Good, that also shows that part of the IDE+TD install isn't corrupted ...

    Seems either something T_3.5 build specific, or something missing/wrong with the install for MTP. Always tough to be sure...
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    If the SD examples work to see the drive and give...

    If the SD examples work to see the drive and give expected output then the T_3.5 should be in good shape, and that could point to something in the MTP software build.
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    So that is unchanged from p#915 where explorer...

    So that is unchanged from p#915 where explorer doesn't present the drive?
    Assuming the Windows is version 10?
    When it was done here on Win 10 with T_4.x's no 'other' Windows drivers were needed.
    ...
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    TD 1.54 b9 includes the current SdFat so this...

    TD 1.54 b9 includes the current SdFat so this should be removed :: Used: D:\ChuckW\Arduino\libraries\SdFat

    Not sure if that solves anything. And not sure about the rest ... but now posted others...
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    From the 'verbose console' - perhaps showing the...

    From the 'verbose console' - perhaps showing the list of "libraries Used" might point to the problem.
    Have not done this lately - and never with a T_3.x IIRC - but know having 'local' sketchbook...
  20. The T_LC has a Max 100 mA rating on 3.3V - the...

    The T_LC has a Max 100 mA rating on 3.3V - the others 3.x and 4.x show that as 250 mA. But that is just the limit of spec range conversion from rated VIN on each board.

    That doesn't assure it...
  21. Which Teensy ... Have not seen that either,...

    Which Teensy ...

    Have not seen that either, just general consumption table at various clock speeds on some/all Teensy units just idling

    Beyond that lots of variables : What is the sketch doing?...
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    IIRC :: three of us bought a Bt 5.0, or BLE?,...

    IIRC :: three of us bought a Bt 5.0, or BLE?, dongle and work with it went nowhere.

    It was just one of the same - but it seemed like a promising one.
  23. @Frank B - good to see you back on line. Hope all...

    @Frank B - good to see you back on line. Hope all is well going forward.
  24. Awesome. It is cool to have those 4 dwords on...

    Awesome. It is cool to have those 4 dwords on hand to track and save EEPROM and have safe workspace. They do take measurable time to write as they pass through the low speed barrier to the other...
  25. I missed that - good work @MichaelMeissner and...

    I missed that - good work @MichaelMeissner and all the best for getting off the sidelines.

    As far as USB connectivity - see the "Many-TLAs" thread linked in p#2.

    It allows a Teensy to show one...
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    Awesome. Hopefully @vjmuzik is online to see and...

    Awesome. Hopefully @vjmuzik is online to see and confirm and incorporate the changes.

    This thread will soon be history for Beta 10 and the release of TD 1.54 - so better to get the history and...
  27. not seen any notes on TeensyTransfer moving to...

    not seen any notes on TeensyTransfer moving to T_4.x.

    There is the LittleFS that gives file system support on FLASH - on the T_4.1 or SPI flash.

    Then there is work on MSC or MTP in some fashion...
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    I used a decent Sparkfun iron for all done here -...

    I used a decent Sparkfun iron for all done here - works fine. Got finer gauge solder that worked well, had some solder paste but it is getting old.

    For reference of PSRAM it is EXTMEM, Flash...
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    Just edited @mjs513 post #4...

    Just edited @mjs513 post #4

    Added github link to github/littlefs

    Copied out the //known chips for reference used on T_4.1
  30. This pin test sketch may be useful :...

    This pin test sketch may be useful : pjrc.com/threads/66771-MicroMod-Beta-Testing

    Even has some notes on use posted there.
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    Great that was the answer! ...

    Great that was the answer!

    pjrc.com/store/psram.html PSRAM's are fun :) They are volatile when power is lost - and they are not FULL speed - but the 1062 has hardware QSPI direct I/O access so use...
  32. Hope it helps - post didn't pop up for me either...

    Hope it helps - post didn't pop up for me either so resorted to finding the sample sketch. One sketch does link to April 2019 - but that was before the Enable was found to make it usable.
  33. The 5V is there to use - but is a valid concern...

    The 5V is there to use - but is a valid concern to keep in mind : if it powers something sharing pins with a non 5V tolerant pin, will it ever put more than 3.3V to that pin.

    That is device...
  34. There is NVRAM on the 1062 in the T_4.x's. There...

    There is NVRAM on the 1062 in the T_4.x's. There are 4 32 bit words.

    Below is code that shows it in use from Feb 2021 - discussed in a post somewhere ...
    > It did some things to show function...
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    NativeEthernet

    NativeEthernet was provided by a user and included in TeensyDuino. Not sure about vjmuzik's time/ability to update or maintain. But the best way to have the library fixed/extended would be to post on...
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    I don't see it either tonton81 just a " ? :) " :...

    I don't see it either tonton81 just a " ? :) " : when a Teensy goes nuts ... turning off the SerMon doesn't fix it or stop it sending.
    > not using CAN since early Beta function tests: the...
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    Not a linux user and not sure what "now at 2.1"...

    Not a linux user and not sure what "now at 2.1" is?

    The TD 1.54 latest beta supports versions up to Arduino IDE 1.8.15

    If there is a fix to be had it will come on the to be released TD 1.54 so...
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    Is this the case with the current TeensyDuino...

    Is this the case with the current TeensyDuino 1.54 in Beta 9?

    LINK: pjrc.com/threads/67252-Teensyduino-1-54-Beta-9

    If so post on that thread ... if not enjoy and stay tuned for new betas and...
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    For the T_4.x this is a good set of memory...

    For the T_4.x this is a good set of memory details :: pjrc.com/store/teensy41.html#memory

    512KB RAM1 : holds code not kept on flash with "FLASHMEM" and all runtime variables and stack. It runs at...
  40. Teensy in use not indicated? Assuming a 4.x but...

    Teensy in use not indicated? Assuming a 4.x but 3.5 and 3.6 also have the factory Restore

    It should come back to programmable with just a Button press {perhaps a power Off/On} - not needing...
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    OSHPark makes them in Purple - Just showing the...

    OSHPark makes them in Purple - Just showing the T_4.0 they used to do a T_3.2?

    $18 Teensy 4.0 - Purple OSH Park Edition
  42. Very good you got to the problem and worked...

    Very good you got to the problem and worked through it. Will be interesting to have the solution posted.

    Like that 10 channel code that was special purpose for the example at hand - probably the...
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    @Paul : quick question? :: RE Audio code in post...

    @Paul : quick question? :: RE Audio code in post #9 - how can the two DAC's get sine out of phase as the p#11 sample above?
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    yes, clearer Odd it would be any worse ?...

    yes, clearer


    Odd it would be any worse ?
    Conditionals can alter a few cycles with compiler optimizing and a change in path can change 1062's dual execute path - just wondered if that was behind...
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    Can a clear pic of Top and Bottom be shown to...

    Can a clear pic of Top and Bottom be shown to show soldering and attachments made?

    Perhaps if VIN were Reconnected to VUSB and the external power were not applied it would show something different...
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    Well that isn't cool. Made Changes Scanned...

    Well that isn't cool. Made Changes

    Scanned the code wrong saw = -twopi instead of the -= twopi as written ...
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    @geekEE :: Quick search found this thread for...

    @geekEE :: Quick search found this thread for T_3.1 - at the time Paul linked to this thread on the PWM page for solution.

    It won't necessarily MAP directly to the T_4.x's 1062 MCU - but might...
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    If externally powered - hold the button until...

    If externally powered - hold the button until just after the Teensy gets power to make sure any code on the Teensy does not run, but stays in bootloader.

    If the timing is right for the 15 sec...
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    Code found from another post {by Paul}...

    Code found from another post {by Paul} was edited to get that and it results in two waves?
    25003

    T_3.6 dual DAC output read by T_4.0 ADC code and sampled out to IDE Plotter with these notes on...
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    Question does "what constitutes jitter" mean...

    Question does "what constitutes jitter" mean "what causes jitter" ?

    Does this change what is shown on the scope? Don't have one here, and coded in browser ...
    Uses pre-calculated state on entry...
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