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  1. One easy way to track some idea of the running...

    One easy way to track some idea of the running performance of loop() is a simple count updated once a second.

    Below is a piece of code showing the use of elapseMicros() in loop2() {lower res...
  2. Cool project and possibilites. Maybe some of...

    Cool project and possibilites.

    Maybe some of that is why TallDog/loglow on Tindie posts a discount coupon for Forum users.
  3. It will be based on the code you write. Unless...

    It will be based on the code you write. Unless you have some access or use of those elements - there is nothing in the system that will make use of them.
  4. Unless it needs to complete some EEPROM or SD...

    Unless it needs to complete some EEPROM or SD Card or other data storage for data integrity, just losing/dropping power won't bother anything.

    The processor will simply load code and start again...
  5. "int" can be different sizes on different...

    "int" can be different sizes on different platforms. Arduino's 8 bit AVR versus 32 bit ARM used on Teensy.

    Not sure how many bytes/bits are in an AVR 'int': Replacing int might work with either...
  6. Not sure - that probably refers to Audio Blocks? ...

    Not sure - that probably refers to Audio Blocks? - if so this won't help but here is Teensy 4.0 memory map - that generally applies to T_4.1

    pjrc.com/store/teensy40.html
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    IDE 1.8.5 is really old - version of TeensyDuino...

    IDE 1.8.5 is really old - version of TeensyDuino not indicated - current version is 1.53.
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    Just looked this up for another post last night -...

    Just looked this up for another post last night - going back 4 years ...

    This - in that post - was noted to be written in this order:


    HWSERIAL.begin(115200,SERIAL_8N1);
    HWSERIAL.setTX(17);...
  9. Assume this is the Installer EXE version - not...

    Assume this is the Installer EXE version - not unzipped?

    Have not done that for years. But 'keyword.txt' is a simple read only file for reference - so seems that would be a bogus message from...
  10. Indeed - should work when called like this: ...

    Indeed - should work when called like this:


    Serial2.begin(9600);
    Serial2.setRX (26);
    Serial2.setTX (31);
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    Not made clear but with 128 bytes EEPROM - that...

    Not made clear but with 128 bytes EEPROM - that would be a Teensy LC? There is not a fixed assurance of EEPROM life ...

    The p#2 linked thread give some details on wear leveling process - probably...
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    Hi, not noted what Teensy? But emulated is used...

    Hi, not noted what Teensy? But emulated is used on T_LC or T_4.x.

    The T_3.x have onboard support and Flash usable as EEPROM. The others above are emulated lacking that direct FLASH access on...
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    First compile and building ALL libraries and...

    First compile and building ALL libraries and parts is typically slower, but the IDE build process reuses that work for faster builds after that.

    It is typical for 2nd and later builds to be much...
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    Hope it helps - make a github issue if anything...

    Hope it helps - make a github issue if anything doesn't quite work - the forum link has more details as noted in the readme.

    Running TSET.cmd assembles the compile.cmd that does a complete normal...
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    What OS? If Windows - try...

    What OS? If Windows - try github.com/Defragster/Tset

    It relies on batch files from command line or if the editor can execute them for you as created for SublimeText editor.
  16. There is a thread where the cPython dev is...

    There is a thread where the cPython dev is posting on T_4.x's - might be best to find that thread and post there to make sure this isn't missed - have not seen much in recent weeks since the PSRAM's...
  17. Unlabeled pads ideal usage is shown here:...

    Unlabeled pads ideal usage is shown here: pjrc.com/store/psram.html

    For pin Numbers this by KurtE is the best way to ID them so far as a PDF or Excel sheet:: github.com/KurtE/TeensyDocuments
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    Web could use a prototype of the T_4.1 card...

    Web could use a prototype of the T_4.1 card backside - explaining the QSPI under pads and Device USB D+/D- etc ...

    To answer questions like this ::...
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    Opps - misread - 3.3V where expected is good. ...

    Opps - misread - 3.3V where expected is good.

    Restore : I have had to try it a couple times in the past to get back to blink. T_4.x with Red LED is nice to see progress/timing - T_3.5 a bit more...
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    Very odd and not understandable from the info...

    Very odd and not understandable from the info presented ... Not sure where a T_3.5 is - but expect when I found it after however long it would power up working.

    First guess is a visual inspection...
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    Hopefully Paul has a post in mind that presented...

    Hopefully Paul has a post in mind that presented a failure to function. Otherwise my shots were just generic 'where to look' if issues appear ... so not helpful or directed at a problem I haven't...
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    According to code here ::...

    According to code here :: github.com/PaulStoffregen/NXPMotionSense/blob/master/NXPMotionSense.h#L54

    It loads related calibration data for all three sensors from EEPROM where saved during...
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    I've not tracked a general 'message from windows'...

    I've not tracked a general 'message from windows' or 'failure on windows' preventing function - is there one at hand?
    > Failure on Arduino installer versus unZip?
    -- > IDE Installer might fail...
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    Can you add a ZIP of the server folder and files...

    Can you add a ZIP of the server folder and files for functional repro?

    Assume that resides on SD card?
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    So many things added to catch evil code doing...

    So many things added to catch evil code doing nasty stuff - adds overhead to doing any task at hand.

    The notes on settings here make perf much better - and in the process I've never had anything...
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    Reading the PDF - 'App and browser control' - I...

    Reading the PDF - 'App and browser control' - I have that turned Off and it is a different set of settings than the areas I altered.
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    Sticky: @Paul - I sent you a USB3 Hub that failed after a...

    @Paul - I sent you a USB3 Hub that failed after a T_4.? bootloader update - no idea if it is related as that thread long past - seemed like it was an edge case (Restore or Power On/Off???). If you...
  28. Page number not likely to match. Initially T_4.0...

    Page number not likely to match. Initially T_4.0 was a 1050 then moved to 1060 - early work done on earlier manuals. NXP did a major 'scramble' of the pages and content and manual release at one...
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    Perhaps: Macintosh Installation 1: Proceed...

    Perhaps:


    Macintosh Installation
    1: Proceed to step 2, no separate Arduino IDE install required
    2: Download Teensyduino for MacOS 10.10 - 10.15.
    Note: This download is a complete copy of...
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    In Win 10 - It really isn't called 'Defender'...

    In Win 10 - It really isn't called 'Defender' anymore - but 'Windows Security' - though Defender still pops on the system Search [tap 'WinKey' type 'Defender']. THOUGH I see it is shown as 'Windows...
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    Sticky: Not sure if it helps - but TeensyDuino latest...

    Not sure if it helps - but TeensyDuino latest release is ver. 1.53

    Also there are existing threads that might have focus on this issue - not recalling the context - but there was a recent post on...
  32. The next thing/stuff under that trace is the PCB...

    The next thing/stuff under that trace is the PCB board layer. That would have to be penetrated well to hit anything that may be under that.

    So at this point perhaps the VIN could be powered from...
  33. In startup the 1062 IO move from GPIO 1,2,3 to...

    In startup the 1062 IO move from GPIO 1,2,3 to GPIO 6,7,8 in order to facilitate FAST IO mode.

    Once in FAST IO mode as noted all pin interrupts arrive at a single code entry point to be parsed and...
  34. Is that picture in a mirror or with selfie cam?...

    Is that picture in a mirror or with selfie cam? ... orientation isn't like IRL

    What is the power source back to the Vin pin when that USB trace cut? It is noted that : "route the USB power out...
  35. If the PR is included it would be in the next...

    If the PR is included it would be in the next release of TeensyDuino 1.54 in some 'weeks' - best to try it and see - if it doesn't work now - then if updated with the PR it will still be broken and...
  36. Search forum for NRF24L01 (or RadioHead )- seems...

    Search forum for NRF24L01 (or RadioHead )- seems there was recent work on RadioHead library to update and hopefully work on Teensy.

    This links to the updated code ::...
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    Found this: ...

    Found this: deepbluembedded.com/uart-pic-microcontroller-tutorial/
  38. If the right spot only between the two pads by...

    If the right spot only between the two pads by Vin as shown on the rear of the Teensy card was cut that should not be a problem. The trace is Only between those two equal sized pads wiring VUSB to...
  39. @mborgerson came up with the result of ~100...

    @mborgerson came up with the result of ~100 cycles I recalled. By different means. That agrees with today's alternate test showing _isr() functional up to 5.4 Mhz - so with minimal loop to...
  40. Wrote a sample as suggested - using the pin _isr...

    Wrote a sample as suggested - using the pin _isr - A T_4.0 can trigger and do minimal _isr() code up to about 5.3 Mhz
  41. It is closer to 100 cycles - had...

    <EDIT BELOW> It is closer to 100 cycles - had something under test months back - but not yet found it ...

    The _isr() will have some 10 cycles delay on trigger and jitter from other 'stuff'.
    ...
  42. Bummer redoing the code still not giving desired...

    Bummer redoing the code still not giving desired results.

    The loop() code was not Ctrl+T formatted before posting - the closing parens and indentation don't match so scanning by eye takes extra...
  43. If it was Windows and not linux this works to run...

    If it was Windows and not linux this works to run installed IDE/TeensyDuino from Commnad line :: github.com/Defragster/Tset

    As KurtE notes it also uses TyCommander for multiple uploads.

    It uses...
  44. Paul and Kurt put in more effort useful info -...

    Paul and Kurt put in more effort useful info - though must say I didn't read it all ...

    When you see C or cpp samples - as far as the core language [ control structures, variable allocation and...
  45. It needs to be properly initialized - that could...

    It needs to be properly initialized - that could be done in setup as it only needs to be done once.

    Or the array as global could be used directly, as noted in p#3.
  46. The compiler warning is actually pointing out a...

    The compiler warning is actually pointing out a functional ERROR and need to be corrected.

    The two IF()'s are independent - maybe the first on always enters first - but if not then the second if...
  47. With the code in the IDE do a code format ::...

    With the code in the IDE do a code format :: Ctrl+T
    > the formatting typically will go wrong where the syntax error or missing brace is.
    > Also the editor will show matching braces and parenthesis...
  48. Any array name not indexed is pointer and should...

    Any array name not indexed is pointer and should be treated that way. And should be a pointer with the type when known as that determines how offsets to the array values are determined.

    This would...
  49. Paul deals with platform & boards files behind...

    Paul deals with platform & boards files behind the scenes AFAIK
  50. you are welcome. See also this post :...

    you are welcome.

    See also this post : pjrc.com/threads/63244-Teensy-4-1-multiple-devices

    For a PDF with alternate view info of the T_4.1 pins
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