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Type: Posts; User: donperryjm

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  1. All I can say is thanks for the work you have...

    All I can say is thanks for the work you have done so far, and I await the external trigger control support whenever it is ready :-)
  2. Teensy 4.1 Stereo + Analog in possible?

    Hello Paul and friends,

    I am a long time user of the teensy 3.5. I use it in my audio device to process sounds along side 2 analog inputs. I have to be careful not to use the same analog input bus...
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    Simply A VIN pin separate from the 5V pin like...

    Simply A VIN pin separate from the 5V pin like most other dev boards provide. So if you want a naked 5V you have that pin straight from USB, but to power the teensy through its schottky you also...
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    Yes, but there are also schottky that allows only...

    Yes, but there are also schottky that allows only a 300mv drop, that leaves with 4.7v. Usually sufficient for most 5V circuit needs.
    even so, they can do external power - eventually most will need...
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    Yes, when powered with the VIN pin and then you...

    Yes, when powered with the VIN pin and then you have to do some serial communication with it powered up on the main system. Think automotive, machinery.
    My question is why not put a diode there and...
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    Damn, didn't even realize the 4.1 was already...

    Damn, didn't even realize the 4.1 was already released. Ok..
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    Teensy 4.1 Suggestions?

    I'm a big fan of the teensy and I've used them in a lot of low volume products I've made.

    I'm now looking on a challenge I've always had with the teensies and that's the back-feed diode...
  8. What happened was I was chasing a pop and click...

    What happened was I was chasing a pop and click artifact in the recordings and tried everything. AudioMemory was at 12. It went away immediately when I used 6. Out of curiosity I googled and found a...
  9. I found best results using 2x The audio memory...

    I found best results using 2x The audio memory usage.
    So if memory usage is 3, I use 6.
  10. OK just heard from Paul, he mentioned that even...

    OK just heard from Paul,
    he mentioned that even though having a 4.3V from regulated power and 5V from usb will probably work,
    it won't when the PC power drops to 0 (completely turns off) and at...
  11. Curious minds await. :-)

    Curious minds await. :-)
  12. Teensy 3.5 Goes dead in production? Needed programming, how to mitigate?

    I have a product that uses the 3.5 as a bootstrap/platform. It uses the Teensy 3.5 as a USB audio device. Now what happened was the customer complained that the device has stopped functioning....
  13. OK. I will contact you shortly.

    OK. I will contact you shortly.
  14. OK. I took a crack at moving around some stuff in...

    OK. I took a crack at moving around some stuff in the usb_desc file but to no avail. I guess it's bigger than me :)
    Would have to instruct my customers to disable the playback device then.
  15. Is it possible to disable the playback side of the teensy audio?

    I'm using a teensy to get some sound into windows. My problem is the software is playing through teensy and is very choppy. I'd like to know if there is a way from programming or configuration that I...
  16. OK, to understand this better, when you say full...

    OK, to understand this better, when you say full chip erase does this mean the bootloader will also be removed or just the sketch?
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    Was wondering if i could join AGND and GND.

    Was wondering if i could join AGND and GND.
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    That's what I did and it works OK now.

    That's what I did and it works OK now.
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    Ground loop sound, how to fix?

    Good day guys and gals,

    I'm using the teensy in an automotive environment. The sound recorded through the teensy is fine until i connect the teensy to the ground of the car.
    AGND is used on the...
  20. OK yes I realize that now.

    OK yes I realize that now.
  21. I'm unable to flash the device as a sound driver,...

    I'm unable to flash the device as a sound driver, therefore the audio tool doesn't work to that end. Maybe works as you have it, maybe as an independent audio device.
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    The bare minimum that presents the problem. I've...

    The bare minimum that presents the problem. I've added a line Serial.print("Works up to here"); to let me know when the program freezes. Moving line below the analogRead will show that it froze at...
  23. Does not work for Teensy 4

    Does not work for Teensy 4
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    Audio teensy froze during AnalogRead

    Is there some limitation with using the audio tool and analogRead (different pins)?

    My code freezes whenever it reaches that line that has AnalogRead.

    when I remove the audio design objects...
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    OK would really really really love that.

    OK would really really really love that.
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    Hello, wanted to move my project over from 3.2...

    Hello,

    wanted to move my project over from 3.2 to 4.0. It's an audio project (serial + audio)

    When trying to compile I only see serial option for teensy 4. Will this change soon or does the...
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    10 bits might would be fine for what I'm after....

    10 bits might would be fine for what I'm after. But still interested in knowing how to do the pre-DAC outpuits :-)
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    I guess I'll just use the Pt8 I have no...

    I guess I'll just use the Pt8

    I have no problem using a self configured DAC, but i still don't know how to wire it up in the gui to a set of pins that would allow for this.
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    I just want to be able to get a small analog...

    I just want to be able to get a small analog signal out after using the audio library. Can you verify that pins mentioned above will work? I'm planning for the device, I don't have it yet
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    No DAC on 4.0. Alternatives?

    I noticed my 4.0 doesn't have the DAC pin that the 3.2 had. Is it possible to use one of the other pins to do this?
    What do you guys recommend?
  31. Simulating this in multisim looks promising. What...

    Simulating this in multisim looks promising. What am i missing here?
  32. OK. I saw that circuit, and I'm still thinking of...

    OK. I saw that circuit, and I'm still thinking of an easier way,

    So backfeeding is a concern, OK i hear that.
    Will it still be a problem if i put a diode after my regulator to drop the voltage to...
  33. THanks. Wonder where this is on the 3.6....

    THanks. Wonder where this is on the 3.6.
    Tomorrow I search or if anything i come back here.
  34. And is there a diode between the USB and the VIN?

    And is there a diode between the USB and the VIN?
  35. Teensy usb powered + External power at same time?

    Hello,

    So I've been reading some things on here and I don't quite understand some of it.
    Is it possible to have my teensy powered from a regulated 5V source (VIN), and then I plug on a usb cable...
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    OK will check it out later. I originally designed...

    OK will check it out later. I originally designed around an arduino nano and used an external watchdog on the reset pin, but since that is harder to access on the teensy, well, here I am
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    I'm on a 3.2 I found this online by paul...

    I'm on a 3.2

    I found this online by paul https://github.com/PaulStoffregen/Arduino-1.6.1-Teensyduino/blob/master/hardware/arduino/sam/system/libsam/source/wdt.c was curious about that
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    Watchdog question

    So seeing that the arduinos use a different mcu than teensy, would the watchdog work the same way?

    if not, did the teensy library supplied got updated with its own modification to the arduino wdt...
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    OK So i'm looking in the designer and I see they...

    OK So i'm looking in the designer and I see they point to some example in the arduino that I cannot find. I see other teensy examples but not the audio examples. Is there somwhere to download them?
    ...
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    OK. a digital mic is not an option as i'm...

    OK. a digital mic is not an option as i'm applying it to an existing hardware.

    I want to see the amplitude of the sound after the frequency is filtered.



    #include <Audio.h>
    #include...
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    I found this link. Will explore and come back if...

    I found this link. Will explore and come back if something isn't clear. I'm not looking for spoonfeeding, just directions thanks again
    ...
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    Hey frank, thanks for replying. Expense is not...

    Hey frank, thanks for replying.

    Expense is not as much of an issue as real estate.

    I tried following the video and it seems to have a set path outside of which I'd like to go - the audio...
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    Teensy Audio without audioshield

    Good day everyone,

    MY first post here.

    So i've been looking to use teensy as an audio filter but what I've seen so far from my search shows an audioshield involved in the process. I'm still...
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