Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: PaulStoffregen

Page 1 of 10 1 2 3 4

Search: Search took 0.08 seconds; generated 41 minute(s) ago.

  1. Replies
    3
    Views
    770

    Done, and I just sent you a pull request for the...

    Done, and I just sent you a pull request for the 1 tiny customization that was in my copy.
  2. This user manual is not enough. You didn't even...

    This user manual is not enough. You didn't even manage to say which page number to read!

    I will *not* invest engineering time into writing a .DAT file player if this manual (and it's info on page...
  3. Are there any tutorials or step-by-step...

    Are there any tutorials or step-by-step instructions for using Jinx, and specifically how to get it to export these .DAT files?

    Is there any documentation about the .DAT file data format?

    I...
  4. That zip file has 4 programs using...

    That zip file has 4 programs using ISR(TIMER1_COMPA_vect). I looked at Stepper4_linearSpeedInterrupt.ino.

    This code appears to be using the timer to generate interrupts with a variable amount of...
  5. Replies
    1
    Views
    53

    MEMS motion sensors tend to have limited...

    MEMS motion sensors tend to have limited bandwidth. Internally, they use a high frequency oscillating structure which responds slightly to motion. Then a demodulator tries to detect the changes,...
  6. Replies
    8
    Views
    104

    Correct, they are separate. Boards like Arduino...

    Correct, they are separate. Boards like Arduino Uno & Mega short them together because they use a USB-serial chip, but on Teensy the native USB and Serial1 are different ports (because there is no...
  7. Replies
    2
    Views
    83

    Good examples could go a long way towards...

    Good examples could go a long way towards demonstrating the real-world value.

    The same could probably also be said of the audio library....
  8. Yes, odds are good your hardware may have...

    Yes, odds are good your hardware may have survived.

    The first step it to check that you can still program the LED blink code. If that works, then solder the pins. Then try uploading the LED...
  9. The pin adds about 5 pF fixed capacitance. So...

    The pin adds about 5 pF fixed capacitance. So that's about 25 pF per pin.
  10. Maybe you missed the point of a listening test. ...

    Maybe you missed the point of a listening test. It's not to check the high frequency response, but rather to confirm the mic is working at all (eg, you got all the wires connected correctly). It's...
  11. It's probably more than 6 months out, for...

    It's probably more than 6 months out, for USBHost_t36.

    Some work has recently been done in the regular USB Host Shield library to support reading USB disks. Maybe take a look at that?
  12. Replies
    28
    Views
    3,942

    Yup, just did 5 more uploads (the mac air was...

    Yup, just did 5 more uploads (the mac air was still on my desk... it had counted up to about 3500). All 5 worked fine, all 5 started printing in the serial monitor. Admittedly I only watched it...
  13. Make sure you're using the latest Teensyduino,...

    Make sure you're using the latest Teensyduino, version 1.39. Click Arduino's Help > About to check. The audio lib I2S was recently updated to improve compatibility with those I2S mics.



    I...
  14. Replies
    4
    Views
    225

    You said you wanted a lower sample rate. The...

    You said you wanted a lower sample rate. The audio library gives 44.1 kHz sample rate. To get lower, you must first use a low pass filter (which the audio library provides), and then you can get...
  15. Replies
    28
    Views
    3,942

    I did a quick sanity check just now, on a Macbook...

    I did a quick sanity check just now, on a Macbook Air with the latest 10.12.6 Sierra.

    Seems to be working fine. Here's a screenshot.

    11564
  16. Replies
    10
    Views
    2,347

    I've never used Xcode+embedXcode. I can tell...

    I've never used Xcode+embedXcode.

    I can tell you the improved map() function is definitely in the 1.39 code. The old one is long gone. So unless there's somehow an old copy laying around in...
  17. Replies
    4
    Views
    145

    While Teensy is running whatever was previously...

    While Teensy is running whatever was previously programmed, sending the reboot request involves opening whatever device is happens to be (many options in Tools > USB Type). Then when it reboots into...
  18. I'm running it now on my Windows 10 test machine....

    I'm running it now on my Windows 10 test machine. It's been going for several minutes, still hasn't managed to overwhelm Java and give that error.

    Windows Task Manager is showing about 544 Mbyte...
  19. Replies
    1
    Views
    78

    I don't know why it's always giving you zero. ...

    I don't know why it's always giving you zero.

    But I did give your program a try here on Teensy 3.5. As-is it does not compile. But with a minor fix and change to print "f" instead of "value",...
  20. Normally the total capacitance to ground is...

    Normally the total capacitance to ground is supposed to be double the crystal's rated capacitance. From the crystal's point of view, those 2 capacitors are in series.
  21. No, that jack is only an output for headphones.

    No, that jack is only an output for headphones.
  22. Replies
    5
    Views
    3,393

    Maybe you're using pinMode(pin, INPUT) which...

    Maybe you're using pinMode(pin, INPUT) which turns on the digital circuitry, or even pinMode(pin, INPUT_PULLUP), when you should just leave it alone or use pinMode(pin, INPUT_DISABLE).

    Really,...
  23. The PWM hardware has a buffer. Your writes go...

    The PWM hardware has a buffer. Your writes go into the buffer, each one overwriting the prior data. At the end of the PWM cycle, the next cycle is started using whatever your last write put into...
  24. Replies
    66
    Views
    2,397

    2 quick questions: Should I include this...

    2 quick questions:

    Should I include this library with Teensyduino 1.40?

    Can someone post a video, showing the hardware used and results running on a monitor? Looking for something showing how...
  25. Replies
    4
    Views
    145

    Did you install the Linux udev rules properly?

    Did you install the Linux udev rules properly?
  26. Yup, that's about right, except the part about 4...

    Yup, that's about right, except the part about 4 layers.

    The 3.6 (and 3.5) reference board uses only 2 layers. The actual Teensy 3.5 & 3.6 PCB uses 6 layers.
  27. Replies
    2
    Views
    67

    Pin 9 connects to the reset chip. On the...

    Pin 9 connects to the reset chip.

    On the version of this board where 3 pads are along the top edge, the canter of those 3 is the PWDN signal. The left side is pin 8 (not pin 9). The right side...
  28. Do not connect 5V signals to any pins on Teensy...

    Do not connect 5V signals to any pins on Teensy 3.6.

    At least the good news here is, without the pins soldered, use of 5V probably didn't actually make it to the pin. :)
  29. Replies
    1
    Views
    63

    The current FM implementation modulates from DC...

    The current FM implementation modulates from DC to 2X the carrier. So if you want to control the frequency with a signal, just set the carrier frequency to half your maximum. If you want all the...
  30. Replies
    17
    Views
    213

    It will happen eventually. Device mode has been...

    It will happen eventually. Device mode has been a much lower priority. Hopefully it's easy to understand how focusing on getting 1 mode working well makes sense before taking on the other.
  31. Replies
    17
    Views
    213

    Have you used the new HID parser stuff?

    Have you used the new HID parser stuff?
  32. Sorry, this doesn't exist. Teensy Loader and the...

    Sorry, this doesn't exist. Teensy Loader and the bootloader are specifically designed to *not* read back the memory. Many use Teensy inside their commercial products, where they would not want...
  33. Two possibilities: Very unlikely: this chip...

    Two possibilities:

    Very unlikely: this chip doesn't support the JEDEC standardized ID command.

    Much more likely: something's not wired up properly...
  34. Replies
    17
    Views
    213

    Even just running the latest unstable dev code...

    Even just running the latest unstable dev code within days of posting on github and writing detailed messages about what did and didn't work is tremendously helpful.

    Just in the last couple weeks...
  35. What happens when you run the hardware test...

    What happens when you run the hardware test example? Does the 3 byte ID read as something other than all 0 or all 0xFF?
  36. Maybe try a longer interval than 1 microsecond,...

    Maybe try a longer interval than 1 microsecond, especially at top priority which blocks everything else! (like the USB interrupt)
  37. Replies
    17
    Views
    213

    The USB0 port (the one with the micro-B...

    The USB0 port (the one with the micro-B connector) is only 12 Mbit/sec on Teensy 3.6. Only USB1 can do 480 Mbit/sec. Just to be perfectly clear, there is zero prospect of UBO0 ever running at 480...
  38. Replies
    17
    Views
    213

    So far, all of the work for USB1 on Teensy 3.6...

    So far, all of the work for USB1 on Teensy 3.6 has been host mode only.
  39. Replies
    2
    Views
    111

    Any chance you could post Pulse1.WAV and...

    Any chance you could post Pulse1.WAV and HolzA.WAV? That would save me some time to investigate this problem.
  40. Replies
    10
    Views
    321

    I believe too often open source and community...

    I believe too often open source and community driven projects fall into a trap of "bigger is better". This C++ FAQ site is probably an extreme example, though it is pretty well organized. Still,...
  41. Replies
    10
    Views
    321

    I'm wondering how long this FAQ should be? My...

    I'm wondering how long this FAQ should be?

    My gut feeling is a short list (8 to 12 questions) encourages people to read the entire list.

    Certainly some open source projects have extremely long...
  42. As I said earlier, I'm pretty sure you're seeing...

    As I said earlier, I'm pretty sure you're seeing the effects of currents related to the digital logic flowing through the analog grounds connecting your signals. An extra chip and the rapid...
  43. Sorry, I missed this earlier. The problem is...

    Sorry, I missed this earlier.

    The problem is your code, not the PT8211.

    Your program is adding (mixing) multiple 1.0 amplitude waveforms, using 1.0 gain setting on the mixer channels. That's...
  44. Replies
    10
    Views
    321

    Frequently Asked Questions

    Ok, it's time to start a FAQ. Please help me add to this list. Ideally, give links to prior threads where the question has been answered well.

    I will edit this message. At some point in the...
  45. On the noise you're hearing, can you try running...

    On the noise you're hearing, can you try running at only 120 MHz?

    The K66 chip on Teensy 3.6 has a special HSRUN mode which basically increases the internal voltage inside the chip, so it'll run...
  46. Sadly, it seems the fractional clock divider for...

    Sadly, it seems the fractional clock divider for MCLK just isn't able to run reliably at 216 or 240 MHz. Remember, this is pretty substantial overclocking, and the first thing that circuit does is...
  47. I'm running it here. 11523 I definitely...

    I'm running it here.

    11523

    I definitely hear artifacts in the audio when running at 240 MHz, which I don't hear with 180 MHz.

    At 216 MHz the artifacts sound even worst, and after a minute or...
  48. Thread: Olga

    by PaulStoffregen
    Replies
    3
    Views
    186

    Robin's been out of town for a few days. ...

    Robin's been out of town for a few days. Normally she responds to the reports. We're starting to feel the absence of her unseen anti-spam work, banning the spammers and blocking the IP...
  49. I just don't know how I can try to say this more...

    I just don't know how I can try to say this more clearly... I'm not going to look at this unless you post a complete program I can copy and paste into Arduino. I already set up hardware and made a...
  50. Can you check with version you're using. In...

    Can you check with version you're using. In Arduino, click Help > About. Or on Mac, click Arduino > About.
Results 1 to 50 of 500
Page 1 of 10 1 2 3 4