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  1. Because you still have the example you opened...

    Because you still have the example you opened from the File > Examples menu when Uno was selected. That one doesn't work on Teensy.



    Close the Window with this example (and make sure at least...
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    After a few more releases, I'll probably prune...

    After a few more releases, I'll probably prune most of that verbose info logging. It is a bit excessive, especially as the code becomes more mature.
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    Yeah, the Arduino port selection is less than...

    Yeah, the Arduino port selection is less than ideal. We're juggling 3 different approaches. You can have a "Teensy" port selected, or a "serial" port selected, or nothing chosen at all. When...
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    Ok, will comment those lines in boards.txt for...

    Ok, will comment those lines in boards.txt for 1.45.

    Not seeing any reason to hold up releasing 1.45. Will probably release it later today.
  5. Before you begin your custom PCB design, I would...

    Before you begin your custom PCB design, I would recommend getting a Teensy 3.5 and building a prototype on a soldless breadboard or by soldering parts on a perf board.

    Regarding your questions of...
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    Thanks for testing. :) Yeah, looks like...

    Thanks for testing. :)



    Yeah, looks like the Arduino devs changed some stuff. It was never in any particular order. The Teensy specific ports used to end up first due to something about the...
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    This is an old thread, but someone pointed it to...

    This is an old thread, but someone pointed it to me today... and it looks like I never answered this last question.

    Assuming the CPU and memory are actually working reliably at those speeds, the...
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    You keep saying "serial port", so I want to be...

    You keep saying "serial port", so I want to be clear that Teensy sometimes uses serial or other protocols, other times uses HID protocol. We get this misunderstanding pretty often from people who...
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    Sure, you can use external EEPROM chips with the...

    Sure, you can use external EEPROM chips with the Wire library.

    Remember the SDA & SCL signals need real pullup resistors when using Teensy LC.
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    On Teensy LC, the flash wear leveling depends...

    On Teensy LC, the flash wear leveling depends only on the total number of byte size writes you perform. Each 1 byte write uses 2 bytes of the 2K flash reserved for the EEPROM emulation. Hopefully...
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    Maybe understanding why the max limit is 254, and...

    Maybe understanding why the max limit is 254, and why the default is lower might help? I don't believe I've ever written about this... so here goes. But the clear message for Teensy LC is this: 254...
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    Have you tried the edit of E2END in eeprom.h, as...

    Have you tried the edit of E2END in eeprom.h, as suggested in msg #20?

    For a little more detail, when you find that file, here is the code you'll see:


    #if defined(__MK20DX128__) ||...
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    One message, several replies... I've added...

    One message, several replies...



    I've added these lines to boards.txt. Look for it in beta2 (coming soon)...



    Any idea whether Teensyduino is responsible for adding these problems, or if...
  14. If you only consider the cost of semiconductors,...

    If you only consider the cost of semiconductors, then of course a few 50 cent logic chips seems a lot less expensive than another $12 or $20 microcontroller board.

    But the reality is both...
  15. I wonder if Windows is sending 1 MIDI message per...

    I wonder if Windows is sending 1 MIDI message per USB packet?

    Years ago, I create a benchmark to test how well Teensy could receive LED data. For programs that write data in large blocks, all...
  16. Maybe give Linux a try?

    Maybe give Linux a try?
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    They're planning to eventually have a "pluggable"...

    They're planning to eventually have a "pluggable" serial monitor API. So maybe there's some long-term hope, not that they'd accept this, but provide a way it could be added as a plugin.
  18. The built in DAC on Teensy 3.2 is not capable of...

    The built in DAC on Teensy 3.2 is not capable of directly driving headphones.

    It's output impedance is too high (weak) to drive the headphones, and it has a DC offset. Neither of those are good...
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    For Arduino 1.8.8 (released earlier today), you...

    For Arduino 1.8.8 (released earlier today), you need this new beta version.

    https://forum.pjrc.com/threads/54518-Teensyduino-1-45-Beta-1
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    If anyone tries the Mac version on Mojave...

    If anyone tries the Mac version on Mojave (10.14), does it give a 32 bit code warning?

    I saw one, but can't seem to reproduce it now. Trying to figure out if something from Teensyduino is still...
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    I've updated here, so this new copy will be in...

    I've updated here, so this new copy will be in the 1.45-beta1 installer - coming later today.
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    Maybe you're experiencing the Windows 7 driver...

    Maybe you're experiencing the Windows 7 driver bugs in USBSER.SYS? The sad news is all pre-10 versions of Windows have this very confusing bug in their serial driver, where the *next* time you try...
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    Yes, using multiple boards is certainly possible....

    Yes, using multiple boards is certainly possible.

    Without knowing anything about your project, I can only give very generic advice...

    Using them as mouse, keyboard and joystick, the main...
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    Arduino 1.8.8

    Arduino released version 1.8.8 this morning.

    Working on a Teensyduino update for it. Should have a beta installer available later today.
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    Seems 180 of the removed pages are from table of...

    Seems 180 of the removed pages are from table of contents, which was ridiculously long on Rev 1 due to fully expanding all the sub-sections. Doesn't look like they actually removed any significant...
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    Wow, looks like they trimmed it by ~200 pages.

    Wow, looks like they trimmed it by ~200 pages.
  27. Using the audio library, the DAC output defaults...

    Using the audio library, the DAC output defaults to 1.2V peak-to-peak range.

    That's pretty close to the -10 dBV "line level" used by consumer equipment (0.775V AC RMS). However, the DAC has an...
  28. I don't understand why "inelegant" always gets...

    I don't understand why "inelegant" always gets ruled out so quickly.

    Who really decides what is elegant anyways?
  29. The "[no device]" means Windows is not behaving. ...

    The "[no device]" means Windows is not behaving. It's not Teensy's fault. Windows is detecting the device but not loading its USBSER.SYS driver properly. This is absolutely happening on the...
  30. I want to clearly communicate that the...

    I want to clearly communicate that the AudioStream base class was not designed to provide this sort of functionality, while at the same time stopping short of saying there isn't *any* way.
    ...
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    These pins in the red circles have identical USB...

    These pins in the red circles have identical USB device functionality. The are the same primary USB port on 3.6 as you had on 3.2.

    15285

    15286

    These pins in the blue circle are the...
  32. Looked at your code again just now. Can't see...

    Looked at your code again just now. Can't see any reason why pin 15 would behave differently than 14, 16, 17, 18, 19.

    The alternate functions of pin 15 aren't used. The situation is the same as...
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    Maybe there's something unusual about your mouse?...

    Maybe there's something unusual about your mouse?



    Can you tell us a specific model number? Or show a photo with any identifying markings?
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    I ran the program from msg #16 on a Teensy 3.6. ...

    I ran the program from msg #16 on a Teensy 3.6. With a regular USB mouse, it seems to work fine.

    15284
  35. For the audio stuff, this tutorial is the best...

    For the audio stuff, this tutorial is the best place to start. There's a 31 page PDF and a 45 minute video (same material as the PDF).

    https://www.pjrc.com/store/audio_tutorial_kit.html
  36. Try pinMode(15, INPUT_DISABLE)

    Try pinMode(15, INPUT_DISABLE)
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    I managed to contact someone from World Semi (on...

    I managed to contact someone from World Semi (on Facebook, of all places...) and they confirmed "VDD=4.5~5.5V" is a mistake in the WS2815 datasheet. They said it will be fixed. No idea of the time...
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    You could try editing AudioStream to set the...

    You could try editing AudioStream to set the block size to something small, like 16 samples. There's also some delay in the ADC and DAC, assuming you use the audio shield or similar hardware.
    ...
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    However, be very careful never to plug the USB...

    However, be very careful never to plug the USB cable in while the battery is connected. The last thing you want is 5V power from your computer running directly into the 3.7V battery, or your 3.7V...
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    Yup, problem solved. Teensy 2.0 can run just...

    Yup, problem solved. Teensy 2.0 can run just fine on 3.7V.

    All we needed was a little more understanding of your project. Before msg #13, nobody could have known what your power source really...
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    I'm also confused. Have no idea what's meant by...

    I'm also confused. Have no idea what's meant by "drop text messages at the same time".
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    Maybe run the Teensy 2.0 directly on 3.7 volts?

    Maybe run the Teensy 2.0 directly on 3.7 volts?
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    Your code fragment is the correct way. Maybe...

    Your code fragment is the correct way.

    Maybe something is wrong in the rest of your code? Or perhaps something isn't right on the hardware side? We can't see your screen or your wires to...
  44. Pretty sure the key to high sustained LPSPI...

    Pretty sure the key to high sustained LPSPI throughput for a larger block of data is configuring a big frame size in TCR. It's on my list to do soon. Right now dealing with the finer points of USB...
  45. I don't quite understand. Does this mean you...

    I don't quite understand. Does this mean you intend to connect 12 of those memory chips?
  46. Is that a Rigol 1000Z series scope? Those are...

    Is that a Rigol 1000Z series scope?

    Those are at most 100 MHz bandwidth, and have 150 MHz probes, right?
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    Most of the output objects have 2 buffers. In...

    Most of the output objects have 2 buffers. In hindsight, really only 1 is needed. Eventually I'm going to update them all to avoid buffering a 2nd packet, which should gut 2.9 ms from the latency.
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    Best option would be something like a LP2950 and...

    Best option would be something like a LP2950 and a 10 uF capacitor.
  49. Oh, just looked at the design tool docs. I...

    Oh, just looked at the design tool docs. I thought there was a link in there to Frank's Memoryboard, but looks like it never got added.

    Frank, do you have a page somewhere with all the details? ...
  50. You'll probably need to edit usb_desc.h, if you...

    You'll probably need to edit usb_desc.h, if you want to make a USB config different than the ones in the menu. See the lengthy comments in that file for instructions.

    On Windows, the default...
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