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 0.10 seconds.

  1. That's relatively easy, since USBHost_t36 works...

    That's relatively easy, since USBHost_t36 works on Teensy 4.0. You just need to connect your USB keyboard to those 2 bottom side pads, and of course connect the power wires to GND and +5V.

    Most...
  2. Future USB will use some DMAMEM, but probably not...

    Future USB will use some DMAMEM, but probably not more than 32K.

    Right now I'm working on the Arduino Serial Monitor side. Really want to solve the Arduino IDE crashing before I work on making...
  3. Replies
    153
    Views
    7,119

    You can get the bare board from OSH Park. ...

    You can get the bare board from OSH Park.

    https://oshpark.com/shared_projects/eowWCxeK

    Or if you're feeling cheap, click the "Download" button for the raw gerber files and then give them to a...
  4. Also, beware the common advice to add a capacitor...

    Also, beware the common advice to add a capacitor at the analog input pin. Without a mux chip, that often helps. But with a mux, it causes havoc (unless you add a long delay for the signal to...
  5. Yup, this problem has come up before. You need a...

    Yup, this problem has come up before. You need a delay between driving the mux pins and reading the input. On slow AVR boards where digitalWrite also has a lot of extra overhead in the code, the...
  6. Replies
    11
    Views
    550

    Sticky: Only the original software published by...

    Only the original software published by Arduino.cc is supported. The many distro-modified copies of Arduino are never supported.

    The installer tries to tell you this.

    17244
  7. Replies
    153
    Views
    7,119

    Maybe your browser is showing you old cached...

    Maybe your browser is showing you old cached info?

    Use this link.

    https://www.pjrc.com/teensy/td_download.html

    If it shows 1.46, click refresh in your browser. Some browsers only do a full...
  8. Replies
    17
    Views
    307

    Nope, not really. This new chip has several...

    Nope, not really. This new chip has several complex features which required extra pins. That's all.
  9. Replies
    8
    Views
    120

    Yes, all the Teensy boards work with the Arduino...

    Yes, all the Teensy boards work with the Arduino software.

    Generally speaking, things work pretty much the same as other boards. That rather vague answer is the best anyone can say for this...
  10. Replies
    8
    Views
    120

    Teensy LC has a significantly lower price than...

    Teensy LC has a significantly lower price than Teensy 2.0. It also has far more features, more memory, and better performance.

    But you answer your original question:



    Here's the page with...
  11. Replies
    17
    Views
    307

    Indeed, N12 (USB_OTG1_CHD_B) is floating. That...

    Indeed, N12 (USB_OTG1_CHD_B) is floating. That open drain output pin would normally be used to integrate the USB charger detection to an external power management chip, presumably so it could know...
  12. Replies
    4,110
    Views
    416,530

    The non-Serial USB types will be supported in...

    The non-Serial USB types will be supported in future versions of the software.
  13. Replies
    17
    Views
    307

    Added minor fixes to the schematic, for the...

    Added minor fixes to the schematic, for the Program pin and 3.3V & GND (right side of the board between On/Off & VTAB). Also added 10 of the 11 test points which were overlooked earlier.
  14. Replies
    17
    Views
    307

    Reverse polarity protection

    Reverse polarity protection
  15. Replies
    17
    Views
    307

    Opps, a typo indeed. Here's the completed...

    Opps, a typo indeed.

    Here's the completed schematic.

    https://www.pjrc.com/teensy/schematic40.png

    Also on the schematics page:

    https://www.pjrc.com/teensy/schematic.html
  16. Replies
    17
    Views
    307

    I'm drawing the schematic now. It's going to...

    I'm drawing the schematic now. It's going to take a while...

    But here's the GPIO part. Hopefully no big surprises?

    17242
  17. Replies
    38
    Views
    854

    Indeed there are now 3 separate I2S peripherals...

    Indeed there are now 3 separate I2S peripherals inside the chip, 2 of which can be accessed on Teensy 4.0 pins.

    But they are not created equal. The first one has 5 data pins, which is actually 1...
  18. Replies
    2
    Views
    115

    Still too early to talk about whatever the next...

    Still too early to talk about whatever the next Teensy model may be...

    On Teensy 4.0, there are no extra bottom side pads to access the same signals that go to the USB connector. This was done on...
  19. Grab the latest OneWire from github.

    Grab the latest OneWire from github.
  20. I didn't reply, but I did add it to the list on...

    I didn't reply, but I did add it to the list on msg #6 of that thread. ;)
  21. So many questions. I'll briefly comment on this...

    So many questions. I'll briefly comment on this one.



    We're trying to better support dynamic CPU frequency changes on Teensy 4.0.

    This wasn't really feasible on Teensy 3.x, because nearly...
  22. Replies
    153
    Views
    7,119

    Yesterday we started testing & packaging Teensy...

    Yesterday we started testing & packaging Teensy 4.0 from the 2nd production batch. Some of the backorders (from last week) shipped yesterday and many more will ship today. We'll probably get caught...
  23. Replies
    10
    Views
    108

    On Teensy 4.0, use attachInterruptVector().

    On Teensy 4.0, use attachInterruptVector().
  24. Replies
    38
    Views
    854

    There is the small matter of (so far) no software...

    There is the small matter of (so far) no software support for Teensy 4.0's S/PDIF peripheral in the audio library.
  25. Replies
    2
    Views
    63

    Here's the info from pwm.c. If the first 3 of...

    Here's the info from pwm.c.

    If the first 3 of 5 numbers are the same, you can expect those pins to have the same frequency.

    Internally the FlexPWM and QuadTimers have a total of 32 counters, so...
  26. Replies
    4,110
    Views
    416,530

    I ran it here too. Definitely makes the Teensy...

    I ran it here too. Definitely makes the Teensy 4.0 stop communicating so you can't upload by clicking Upload in Arduino. But pressing the button on Teensy 4.0 still works fine.

    Every Teensy, all...
  27. Replies
    11
    Views
    294

    Just to confirm (in case anyone needs to hear it...

    Just to confirm (in case anyone needs to hear it directly from me), Teensy 4.0 does not have a true analog output DAC, like Teensy 3.2, 3.5 and 3.6 do. NXP simply did not put one inside this chip.
    ...
  28. Replies
    153
    Views
    7,119

    Please start a new thread about this. I'd like...

    Please start a new thread about this. I'd like to see it happen....
  29. Replies
    38
    Views
    854

    Install 1.47 (not beta). It has the simultaneous...

    Install 1.47 (not beta). It has the simultaneous I2S fix.

    https://www.pjrc.com/teensy/td_download.html
  30. Replies
    2
    Views
    49

    Maybe restructure your program, so you do not use...

    Maybe restructure your program, so you do not use delay(). One approach is to create an elapsedMillis variable which you check in loop(), and usually 1 or more other variable to remember what you...
  31. OctoWS8211 is non-blocking. It returns quickly...

    OctoWS8211 is non-blocking. It returns quickly to your program and the LEDs are updated by DMA while your code continues to run. That is what non-blocking means.



    I2C slave mode and...
  32. Replies
    4,110
    Views
    416,530

    I've committed a fix for simultaneous I2S audio...

    I've committed a fix for simultaneous I2S audio input & output.

    https://github.com/PaulStoffregen/Audio/commit/bd5332f9d9a6c3095c0563dacafd086b37474443

    Looks like input was working, and output...
  33. @ftrias - I sent you an email. :)

    @ftrias - I sent you an email. :)
  34. Replies
    38
    Views
    854

    Rev D is coming soon. Here's the first...

    Rev D is coming soon. Here's the first prototype, on my desk right now...

    17203

    On the very first ones (Rev A), the green and black ones were identical, other than the color.

    The black...
  35. Replies
    4,110
    Views
    416,530

    Anyone see bugs that really should get fixed...

    Anyone see bugs that really should get fixed before calling this 1.47?

    Of course there's still features missing and libs not ported, but those will wait until 1.48, which I hope to release in a...
  36. Replies
    4,110
    Views
    416,530

    I've uploaded 1.47-beta7. As always, links on...

    I've uploaded 1.47-beta7. As always, links on msg #2.

    This includes Kurt's fixes in ILI9341_t3 and Touchscreen, Daniel's new FastLED 3.3 release, and the minor fix for Serial1.write(0).
  37. I tried here on a Macbook Air with Mojave...

    I tried here on a Macbook Air with Mojave 10.14.6, running Arduino 1.8.9 and Teensyduino 1.47-beta6. I could not reproduce the problem.

    Here's a quick screen record where I uploaded the Audio...
  38. Replies
    4
    Views
    292

    Unless your enclosure is very small, or very well...

    Unless your enclosure is very small, or very well thermally insulated, or has some other stuff dissipating a lot of heat, you can probably get by without a heatsink.

    If you attempt extreme...
  39. Replies
    12
    Views
    170

    Yes, it can. In fact, it can be used as many...

    Yes, it can. In fact, it can be used as many serial ports. Just connect a USB hub (or network of hubs) and plug as many USB serial cables as you like into the hub(s).

    For each hub and each...
  40. Yes, the low power timer supports this. It's...

    Yes, the low power timer supports this. It's used by the FreqCount library, so that should be your first place to look for example code. Of course, the reference manual gives all the details about...
  41. Replies
    4,110
    Views
    416,530

    I've committed a fix for Serial1.write(0x00) ...

    I've committed a fix for Serial1.write(0x00)

    https://github.com/PaulStoffregen/cores/commit/a4c6f53307c458d3072644ea2c407b03eb2d91c1

    Your program is also lacking begin(baud), which is optional...
  42. Replies
    10
    Views
    92

    Oh, sounds like something is really messed up...

    Oh, sounds like something is really messed up with your Windows system.

    I'm not a Windows expert like Defragster. The only way I know how to solve a "strange Windows problem" like this is to do a...
  43. Replies
    1
    Views
    52

    I can't say why it's not working for you, but I...

    I can't say why it's not working for you, but I can confirm it does indeed work if you run this code and connect a LED+resistor.



    void setup() {
    pinMode(30, OUTPUT);
    }

    void loop() {
    ...
  44. Part #2 is this inductor 17193 (click for...

    Part #2 is this inductor

    17193
    (click for full size)
  45. Replies
    10
    Views
    92

    Maybe try temporarily turning off Windows...

    Maybe try temporarily turning off Windows Defender and any other anti-virus software you may have?

    Also, try rebooting first before you do anything else. Windows 10 is better than prior versions,...
  46. Replies
    39
    Views
    1,942

    Yes, the breakout board works with the older...

    Yes, the breakout board works with the older shields. Every beta tester got the Rev B audio shield. Works great.

    It probably will also work with the ancient Rev A audio shields, but that was...
  47. Replies
    39
    Views
    1,942

    I published the breakout board. Showed...

    I published the breakout board. Showed Defragsters photo and mentioned the Tall Dog product is in development.

    https://www.pjrc.com/breakout-board-for-teensy-4-0/

    Also showed Kurt and Mike's...
  48. Replies
    13
    Views
    85

    Teensy 3.5 is 5 volt tolerant, but no Teensy is...

    Teensy 3.5 is 5 volt tolerant, but no Teensy is negative voltage tolerant.

    You either need a proper level converter like MAX232, or at the very least a resistor and diode to clamp the voltage so...
  49. Replies
    13
    Views
    85

    Check the actual voltage with a voltmeter. Maybe...

    Check the actual voltage with a voltmeter. Maybe it's really -5V when idle?

    Hard to believe any commercial serial product with that 9 pin connector would have the correct polarity, since it would...
  50. This "{build.command.linker}" error means you...

    This "{build.command.linker}" error means you have an incomplete or corrupted install, where platform.txt was updated but boards.txt was not. This symbol was added some time ago, to both those...
Results 1 to 50 of 500
Page 1 of 10 1 2 3 4