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

Search:

Type: Posts; User: blackketter

Page 1 of 4 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    115
    Views
    5,939

    They do appear to be identical, same datasheet,...

    They do appear to be identical, same datasheet, etc. I can't think of a reason why the new part number wouldn't work exactly the same.
  2. Yes, by cycling the power or having the teensy...

    Yes, by cycling the power or having the teensy reboot itself.
  3. Another data point: I use platformio on macOS...

    Another data point: I use platformio on macOS with T4 and have never had a system crash.

    Also, can you reproduce the problem _without_ reprogramming the teensy?
  4. Replies
    2
    Views
    125

    For the software, check out KiCad...

    For the software, check out KiCad (https://kicad-pcb.org). It's free and open source and can handle some very complex designs. While it's not trivial to get started, it's gotten a lot easier to use...
  5. Replies
    115
    Views
    5,939

    I've put together a design for a combination USB...

    I've put together a design for a combination USB Host and SD breakout board. The idea is that it straddles atop the teensy and connects via a tall-ish header to the original Teensy 4 breakout board...
  6. The extra circuitry in the Teensy 3.6 (copied...

    The extra circuitry in the Teensy 3.6 (copied into the Teensy 4 USB Host Breakout) provides power overload protection, power control, and USB ESD protection.

    If you are willing to bet that you...
  7. I'm not on that specific hardware, but I've been...

    I'm not on that specific hardware, but I've been on a MacBook Pro on that version of the OS and have not seen any system crashes.

    I'll throw out a few things to try toward narrowing it down:

    1....
  8. The ESP32-S2 looks really interesting and could...

    The ESP32-S2 looks really interesting and could be used as you described.

    Indeed, if the ESP32-S2 has a robust USB host implementation, it could give the Teensy 3.6 and 4.0 a good bit of...
  9. Thanks, Paul, I realize that this is a long-term...

    Thanks, Paul, I realize that this is a long-term project and am just glad that you are thinking about it for the future. And totally agree about making sure it's rock solid to avoid dead Teensies.
    ...
  10. Id care about macOS and Linux.

    Id care about macOS and Linux.
  11. I do remember seeing this before, it's excellent...

    I do remember seeing this before, it's excellent work. Well done!

    I was throwing this out there to start a discussion about a way for Paul to be able to keep his business model of bootloader...
  12. A crazy idea for Teensy firmware updating

    One of the frequent requests on this forum is for a way to update teensy firmware from a source other than USB.

    I wonder if it would be possible in a future version to the bootloader chip to...
  13. I'd love to have that capability too.

    I'd love to have that capability too.
  14. Replies
    296
    Views
    18,226

    That's a really clear bit of documentation. Well...

    That's a really clear bit of documentation. Well done. Can I ask how you made it?
  15. Do you have any third-party virus, networking or...

    Do you have any third-party virus, networking or firewall software installed on your computer?
  16. Replies
    102
    Views
    5,742

    I meant to suggest this earlier: pads on the...

    I meant to suggest this earlier: pads on the bottom to provide access to the USB connector data pins. This allows for a design that has its own USB port for power/programming (USB-C anyone?)
  17. Can't reproduce here with Teensy loader 1.47 on...

    Can't reproduce here with Teensy loader 1.47 on High Sierra 10.13.6 with firewall on or off.

    Paul: is there any way to get the error result that prints that message?
  18. I can try to reproduce this here, but first I...

    I can try to reproduce this here, but first I assume you checked to see that this isn't an issue with the firewall configuration?
  19. Replies
    3
    Views
    340

    Excellent, @Simmic, thanks! I've tried importing...

    Excellent, @Simmic, thanks! I've tried importing this model into the KiCad footprints for Teensy 4. Here's what a 3d render looks like for the breakout board I've been working on:

    18097

    I...
  20. Replies
    18
    Views
    2,477

    Sounds great, @Dog-One! Can you give a little...

    Sounds great, @Dog-One! Can you give a little background on what changes you had to make to get it to build? I'd like to get it working under Arduino and PlatformIO.
  21. Replies
    19
    Views
    493

    Still an issue. Filed bug here...

    Still an issue. Filed bug here https://github.com/PaulStoffregen/cores/issues/401 so this doesn't get lost.
  22. Just saw this post about the next version of...

    Just saw this post about the next version of PlatformIO which has some VERY slick tools for investigating firmware symbols, memory allocations, static code analysis, etc.
    ...
  23. Thanks, Paul, that's super useful and clear. ...

    Thanks, Paul, that's super useful and clear.

    A couple of thoughts:

    Would it be possible to add the default values for the various fixed addresses?

    One note on the graphic: I puzzled over...
  24. Replies
    115
    Views
    5,939

    Another good suggestion. I'll add that to my...

    Another good suggestion. I'll add that to my next version!
  25. Replies
    115
    Views
    5,939

    Good point, I've added it to the OSHPark project...

    Good point, I've added it to the OSHPark project page for the latest design.
  26. Replies
    115
    Views
    5,939

    No good reason, they were like that in the...

    No good reason, they were like that in the original default footprint for the header that I used. Rounded them out:

    17971
  27. Replies
    115
    Views
    5,939

    Good suggestion. I'll see what I can fit in...

    Good suggestion. I'll see what I can fit in there! How's this?

    17970
  28. Replies
    115
    Views
    5,939

    And some more updates this morning to add...

    And some more updates this morning to add additional ground connections and a ground plane, as well as some more silkscreen improvements:

    https://github.com/blackketter/teensy4_header_breakout
    ...
  29. Replies
    115
    Views
    5,939

    I've updated the design a bit to improve the...

    I've updated the design a bit to improve the silkscreen and tweaked the edge cuts to not cut through two pins that didn't need cutting (teensy pins 12 & 13). Updated here:
    ...
  30. Replies
    102
    Views
    5,742

    +1 for this! I really like these hybrid...

    +1 for this! I really like these hybrid castellated / through-hole pads on the edge. I do understand that there will be parts on the bottoms of teensy 4.x board requiring a cutout in the base board.
  31. Replies
    115
    Views
    5,939

    They were pretty clear with me that the...

    They were pretty clear with me that the castellated designs were not guaranteed. Their tips are here: https://docs.oshpark.com/tips+tricks/castellation/

    My guess is that the thinness of the board...
  32. Replies
    115
    Views
    5,939

    Another datapoint: I got my 0.8mm boards back...

    Another datapoint: I got my 0.8mm boards back today, finally, and only one of the three of them is usable. The cuts were all made on all the boards but two of the three boards each had the plating...
  33. Replies
    19
    Views
    493

    @Paul: Any clue where I could dig to see if I...

    @Paul: Any clue where I could dig to see if I could find where the lockup is happening? Happy to dig in here a bit...
  34. Ah, I see from the schematic that the POR_B pin...

    Ah, I see from the schematic that the POR_B pin is used by the boot loader chip. Would it be feasible to add a pin that forced a reset by disabling the 3.3v regulator?
  35. I'm only really missing one specific pin from the...

    I'm only really missing one specific pin from the Teensy 4.0: RESET

    Apart from that, I'd really love to be able to attach inexpensive LCD displays and take advantage of the 2D graphics...
  36. Replies
    19
    Views
    493

    Also, I should have noted earlier that after the...

    Also, I should have noted earlier that after the USB serial lockup my larger application continued to work.

    In fact, USB serial writes from Teensy to host continue to work and loop() continues to...
  37. Replies
    19
    Views
    493

    Alright! Thanks! With that test the ISR...

    Alright! Thanks! With that test the ISR blinking continues to work even after the USB serial is locked up. And no HardFault blinking.
  38. Replies
    19
    Views
    493

    I'm not following. Something to test?

    I'm not following. Something to test?
  39. Replies
    19
    Views
    493

    Thanks defroster, but alas, no. A single blink...

    Thanks defroster, but alas, no. A single blink when it start, then it locks up as above without any blinks.
  40. Replies
    19
    Views
    493

    Once it locks up I can't unlock it with further...

    Once it locks up I can't unlock it with further transfers. With your example code, shorter sends to the Teensy work fine (led goes on, then goes off a couple of seconds later), but once a large...
  41. Replies
    19
    Views
    493

    macOS Mojave 10.14.6

    macOS Mojave 10.14.6
  42. Replies
    19
    Views
    493

    Thanks, defragster. I did try your changes to no...

    Thanks, defragster. I did try your changes to no avail.

    I suspect that the issue outlined at https://forum.pjrc.com/threads/57325-Teensy-4-0-Serial-available()-stops-incrementing is the same...
  43. Replies
    19
    Views
    493

    Teensy 4.0 USB serial lockup

    I think I'm seeing a bug in usb_serial on Teensy 4.0. When I try sending a block of text larger than 2413 bytes via the serial port, it locks up. Here's the sketch:

    #include <Arduino.h>

    void...
  44. Replies
    102
    Views
    5,742

    The breakout board discussed here...

    The breakout board discussed here https://forum.pjrc.com/threads/57672-Another-Teensy-4-0-Breakout-Board uses castellated pads like in that photo.

    If you are using KiCad, the footprint used by...
  45. Replies
    115
    Views
    5,939

    One more thought: I don't see why the teensy...

    One more thought: I don't see why the teensy itself shouldn't continue to work and can't think of a reason that the castellated pads that you soldered wouldn't work, though on the wrong side of the...
  46. Replies
    115
    Views
    5,939

    I just updated the design with the new silkscreen...

    I just updated the design with the new silkscreen warning, and iit also brings out ground to the pins for USB. I haven't ordered one yet but I think it should be ok.
  47. Replies
    115
    Views
    5,939

    DOH! So sorry, I nearly did that myself. I'll...

    DOH! So sorry, I nearly did that myself. I'll update the design with a silkscreen note that says "This side faces Teensy!"
  48. Replies
    115
    Views
    5,939

    Glad to hear you got a (mostly) working board. I...

    Glad to hear you got a (mostly) working board. I just checked my pin 34 (ie. the top left pin on the breakout board and it seems to work fine by toggling it on and off in software. I don't see an...
  49. This is great, nice work! Did you consider...

    This is great, nice work! Did you consider access to the USB pins? I wonder if there's a way to add a USB port here...
  50. Replies
    1
    Views
    68

    I packaged a teensy compatible library that...

    I packaged a teensy compatible library that provides version of Lua with basic REPL. It's really just a proof of concept now, but might be useful to you. Happy to put a little more work into it if...
Results 1 to 50 of 189
Page 1 of 4 1 2 3 4