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  1. Just noticing what Teensy is in use isn't...

    Just noticing what Teensy is in use isn't apparent?


    in this thread.

    I can use the touch library without interrupts without error, so I have some time.
    I'll try to clarify my questions and...
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    There are larger SMD parts - loglow/TallDog board...

    There are larger SMD parts - loglow/TallDog board is moving to this that others may use : TPS2055A - not sure if that is larger than TPD3S014. The first beta board was a tiny part that soldered okay...
  3. Not sure what SPI.usingInterrupt() relates to -...

    Not sure what SPI.usingInterrupt() relates to - but pretty sure it isn't the tirqPin in the touch driver as it is just a signal indicator using a pin independent of anything else.

    It isn't part of...
  4. Current TeensyDuino V 1.48 has Great USB Serial...

    Current TeensyDuino V 1.48 has Great USB Serial support as a device. It is already over running at 10 times the output rate and can overwhelm the PC host since it went from 12 to 480 Mbps USB speed....
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    Good job on the extension between the facing...

    Good job on the extension between the facing soldered pin lines for cable/SDIO - that should remove possibly the biggest problem assembly spot with crowded fine pitch soldering

    With the onboard...
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    @loglow - if PCB A3 wasn't made then all is good...

    @loglow - if PCB A3 wasn't made then all is good as long as we don't confuse the pics A3_p260 and A3_P265.

    @KurtE - did your OSH castellations come out cut right for the FRDM board? If so I'll...
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    @loglow - good to see you back with this - I'll...

    @loglow - good to see you back with this - I'll buy another T4 and build it if you send a Beta kit - full low_pro socket set hopefully? Looking forward to it as it is a nice compact unit that gives...
  8. There are a few recent posts on extending USB...

    There are a few recent posts on extending USB type support on Teensy 4 - bottom line after 11/25 Paul will get to return to his work on this with results following in beta asap
    ...
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    Also might be important what version of...

    Also might be important what version of TeensyDuino. There was a fix about 2-3 versions back where a serial port could get stuck on an error. That was mostly caused by changing BAUD rate IIRC, but...
  10. Setup runs only once about 400 ms after the...

    Setup runs only once about 400 ms after the Teensy is plugged in.

    Other than the delay nothing stops the code from immediately executing and being done immediately after that. There is no wait...
  11. Just a glance - not a Teensy 2 user or much with...

    Just a glance - not a Teensy 2 user or much with USB Keyboard …

    All that code is ONE time in setup()

    It falls through only once - after the initial delay(2000) there are no waits or while() or...
  12. Perhaps trying one of the simpler USB Keyboard...

    Perhaps trying one of the simpler USB Keyboard examples would show desired function. It may be some timing issue when it comes to the Windows 7 machine with the sketch as written?

    If a simple...
  13. The attachInterrupt() for ...

    The attachInterrupt() for <XPT2046_Touchscreen.h> is on a device feedback pin, outside the SPI functionality.

    It is used to identify when the touch hardware identifies a touch, giving notice to...
  14. RE #2 - FFT calc is done with overlap when half...

    RE #2 - FFT calc is done with overlap when half of the prior data is replaced with incoming data.

    some notes here: dsp.stackexchange.com...window-periodoverlap-and-fft
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    With that many devices if they are not properly...

    With that many devices if they are not properly tri-stated and using pullups there could easily be bus confusion.

    Refer to this page for more details :: pjrc.com/better-spi-bus-design-in-3-steps/...
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    Good luck on the new Rev D adapter - both not...

    Good luck on the new Rev D adapter - both not losing it and in having it work :)

    I soldered the older slower standard W25Q128FV and found it to work with the minimal test on the Rev D. This post...
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    Wow that is a blast from the past...

    Wow that is a blast from the past!
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    That was a suggested edit to replace ... uint8_t...

    That was a suggested edit to replace ... uint8_t _pwmPIN; - copied from that code. It would then make the 'else' for " if(_hasPShield) { " just work when no call to beginPWM is made since the...
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    Jan 2018 - that was the early Pre Beta :) As...

    Jan 2018 - that was the early Pre Beta :)

    As noted it should somehow default to a DAC pin if present - or an expected PWM pin if no DAC? That was the initial behavior AFAIK after Paul ported it...
  20. Paul notes other commitments will have him...

    Paul notes other commitments will have him otherwise engaged until 11/25 when getting back to USB will be high or first priority. Probably safe to expect updated Beta TD 1.49 in the first week of...
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    Indeed that is true - it was during PropShield...

    Indeed that is true - it was during PropShield Beta I tweaked Talkie to be non-blocking with a queue of sounds to play - some of the examples have that - where this worked for setup - and it would...
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    Glad the "beginPWM" worked. Interesting...

    Glad the "beginPWM" worked.



    Interesting - I saw that "beginPropShield" code and didn't recognize it - but it is the only place the pin was specified. Otherwise this was unset?:: "uint8_t...
  23. It might be running the I/O on rate of...

    It might be running the I/O on rate of F_BUS_ACTUAL { which is 150 MHz at 600 MHz I saw noted past day(s) } - it did on T_3.6 AFAIK - but T4 clocks are unique …

    Note also said F_BUS_ACTUAL goes to...
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    It is possible an update for Teensy 4 altered the...

    It is possible an update for Teensy 4 altered the library code to break T_3.1/3.2 id #ifdef's? I don't see it in a quick glance?

    Perhaps add this for a test :: voice.beginPWM(A14);


    Talkie...
  25. If I follow and remember the buttons/steps: >...

    If I follow and remember the buttons/steps:

    > take Teensy Loader app off Auto per p#2
    > allows pressing Program Button on Teensy and have it stay in bootloader mode, and not Auto Load
    ->> May...
  26. Yes T_3.x and T4 have ARM_DWT_CYCCNT, see this...

    Yes T_3.x and T4 have ARM_DWT_CYCCNT, see this post : pjrc.com/threads/58321-micros()-within-Interrupt-possible. Using that ARM_DWT_CYCCNT takes only about 3 cycles as it is a register read - not a...
  27. Just a note: Arduino is the targeted and tested...

    Just a note: Arduino is the targeted and tested IDE and build system. Working across all supported OS's it is easy for all to install target IDE and TeensyDuino versions and expect to get the same...
  28. It seems the verbose Error info is missing where...

    It seems the verbose Error info is missing where the problem with the schinken/SimpleTimer library would be indicated is missing?
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    JUST FYI : Seems "to be performance-ready" ... I...

    JUST FYI : Seems "to be performance-ready" ... I was playing the uTube and my wife came from next room telling me what it was ... and singing

    For the LED's pick 7 digital pins and when the sensor...
  30. And this text on the full PROP with motion: ...

    And this text on the full PROP with motion:

    DISCONTINUED
    You can grab the Adafruit Prop-Maker FeatherWing - Without or Without Headers instead!
    Notes there about best use on Adafruit M0 and M4...
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    A bad cable would explain that - otherwise a...

    A bad cable would explain that - otherwise a simple blink sketch after Verify and then Plug in button held and released should trigger system to upload.

    What version of IDE and TeensyDuino? Paul...
  32. Not sure - but I assume with T4 having dual side...

    Not sure - but I assume with T4 having dual side components - one side is already low temp pasted for initial build?

    You've seen this thread - Is-there-a-third-Teensy-4-0-breakout-board
    @KurtE...
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    Quick forum search on MQS - one was this ::...

    Quick forum search on MQS - one was this :: Teensy-4-MQS-pins-what-are-they-where-can-I-read-about-them-are-they-supported
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    Hard to say - during beta since Jan 2019 I stuck...

    Hard to say - during beta since Jan 2019 I stuck with making sure the default build working - few attempts at LTO or other could hit an issue. And I didn't see any attempt to push or test beyond that...
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    @ftrias > Created...

    @ftrias > Created github.com/ftrias/TeensyThreads/pull/21 Pull request for the change

    That will need updated and pulled in with a prior change to stop T4 double _isr :...
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    in IDE 1.8.10 install with TD 1.48 in : ...

    in IDE 1.8.10 install with TD 1.48 in : arduino_1.8.10\hardware\teensy\avr\libraries\USBHost_t36\USBHost_t36.h
    Removed this to a comment:: //#define USBHOST_PRINT_DEBUG

    Compiled again and it...
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    Okay,that is what i saw on my machine ...didn't...

    Okay,that is what i saw on my machine ...didn't hit the source... See now which it changed to

    Will need change in @ftrias TeensyThreads
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    Seems the DEBUG REQUIRED may have been around...

    Seems the DEBUG REQUIRED may have been around before? My debug is on now - have to wait to try it off.

    @KurtE or @mjs513 might have a note if you can say what IDE and TeensyDuino versions are in...
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    @Paul - I put the current Github/CORES on this...

    @Paul - I put the current Github/CORES on this system and building 'USB Host Ethernet Driver' sample that uses TeensyThreads it breaks with this.

    What there a rename of something?


    ...
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    I got a second unit not too long ago - may be a...

    I got a second unit not too long ago - may be a different batch from the first one, but I have not connected to Teensy yet - and it now MIA … though I did just find three T_3.6's …

    Found it - new...
  41. Mainly tested on Teensy 4 - did just run on okay...

    Mainly tested on Teensy 4 - did just run on okay a T_3.1 (about 10 times with 11,200 bytes) - because I was expecting it to have an issue with the USB stack being a work in progress - and there is a...
  42. This PJRC product page should show the answers: ...

    This PJRC product page should show the answers: pjrc.com/store/teensy3_audio.html

    Those noted pins include SPI - which may not be in use … And the same for Pin #15 tied to Pot on the Audio board.
  43. Does this work any better where it replaces what...

    Does this work any better where it replaces what was tried in the second code loop



    char megaBuffer[MAX_PIXELS_PER_STRIP * 8 * 3]; // 12408 currently
    int curItem = 0, n;
    unsigned long...
  44. What OS is the computer running? Windows has...

    What OS is the computer running?

    Windows has some odd hibernate/sleep modes that many devices don't some back from. Looks here USB Selective suspend setting

    It might be that - or just above...
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    Four out of FOUR is pretty amazing to have no...

    Four out of FOUR is pretty amazing to have no data lines! With note of 4 tested I skipped the boilerplate 'Make sure you have a GOOD USB Data cable' …
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    Github update 9 months ago - maybe an Issue there...

    Github update 9 months ago - maybe an Issue there will get resolved by the author? Might just be a IDE/Toolchain update or minor untested T_LC case.
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    Posting the found answer is always cool :)

    Posting the found answer is always cool :)
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    Indeed micros() isn't a clean/easy function on...

    Indeed micros() isn't a clean/easy function on T_3.x's.
    Better to use the CPU cycle counter - T_LC doesn't have one but T_3.x's do though not enabled by default, it is on T4 though:

    This test...
  49. opps - quite right ...

    opps - quite right ...
  50. Looking at :...

    Looking at : pjrc.com/teensy/td_timing_IntervalTimer.html

    this "Displays_Run.begin(Sub_Display_Run, 2500);" is requested to run every 2.5ms … that is 400 times per second. Probably at least 10-20...
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