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Type: Posts; User: tveenker

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    Ah of course. Didn't think of that. Thanks. I...

    Ah of course. Didn't think of that. Thanks.

    I do think the info on https://www.pjrc.com/teensy/usb_serial.html should be updated to reflect the actual situation.
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    return value of usb_serial_write()

    Hi all,

    With arduino-1.6.3 and Teensyduino 124 the return value of calls usb_serial_write() is -1 on error and 0 on success. This matches what it says here:...
  3. That makes perfect sense! Never thought about...

    That makes perfect sense! Never thought about that.

    I'd like my clients to be able to update the device I sold them, without requiring them to open the box to press the program button.

    Would it...
  4. As a related question. I wanted to temporarily...

    As a related question. I wanted to temporarily disable the timer interrupt. So I added the following to IntervalTimer.h:


    void disableIrq() {
    #if defined(KINETISK)
    if (PIT_enabled)...
  5. can't auto upload after changing product name

    Hi all,

    Short question. Is it expected behavior for a Teensy 3.1 that auto reboot no longer works after having changed the manufacturer and product names? teensy_post_compile/teensy_reboot tell...
  6. I used the one included in the teensyduino...

    I used the one included in the teensyduino package. I have now downloaded the ADC lib from github and indeed the issue is fixed.
    Thanks.
  7. ADC setAveraging(8) and setAveraging(16) have opposite effect

    @pedvide

    I think in ADC_Module::setAveraging() the setBit/clearBit calls are reversed for the 8 and 16 samples cases. The comments are correct. I noticed this when I saw with setAveraging(16) I...
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    Yes the extender reports as a four port hub...

    Yes the extender reports as a four port hub (although it has only one output).

    I'll see if I can blacklist the uhci_hcd driver. I don't mind tweaking my own system if it improves IO performance....
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    Plugging the Teensy to a USB-3 port the system...

    Plugging the Teensy to a USB-3 port the system still recognizes it as a full speed device, but it is then using xhci_hcd and it gives me the desired short round trip latency. Apparently when the...
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    About cables. I tried a bunch of cables, short,...

    About cables. I tried a bunch of cables, short, long, quality, crap. The results are consistent. When going via the extender I get high speed, without it I get full speed. Hmm.
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    Interesting, didn't know that. What an odd way of...

    Interesting, didn't know that. What an odd way of differentiating between full/high speed mode.



    I'm not using it in host mode. I just tried a Teensy 3.0 alone on a breadboard. Same thing, full...
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    USB speed selection

    Hi,

    I'm creating a Teensy 3.1 based device for scientific usage. For synchronizing clocks I'm doing a round trip from PC to Teensy and back to PC again and then process the results. I'm working...
  13. Teensy Audio Library, suggestion for AudioInputAnalog

    Hi all,

    I'm playing around with the audio library (great stuff Paul). I'd like to suggest some minor changes to the AudioInputAnalog class.

    With my hardware setup (Teensy 3.1, AREF at 2.5V,...
  14. Teensy 3.1 symbol & footprint for gEDA gschem and pcb

    Hi all,

    I've created a Teensy 3.1 symbol to be used with the gschem schematics editor and a corresponding footprint to be used with the pcb tool. See attachment. See http://www.geda-project.org/...
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