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Type: Posts; User: dougm

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    Teensy and gigabit ethernet

    I have a camera (Z-Cam E2) with a Gb ethernet port that is used for streaming video but also camera control. The camera is a web server, so to make changes to it you send it rest commands.
    ...
  2. Are you sure the hang isn't related to other...

    Are you sure the hang isn't related to other parts of your code? Have you tried running nothing but blink and watchdog? I would see if there ins't some while loop that it's getting caught in...
  3. Teensyduino Installer can't access Arduino folder when installed from App Store

    I installed Arduino IDE from the app store. It was installed in a hidden folder called
    C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.10.0_x86__mdqgnx93n4wtt

    First I tried to un-hide...
  4. Ok, it's been a while but the last code I wrote...

    Ok, it's been a while but the last code I wrote that had the watchdog all the defines had been added to the library.

    In my header I have:

    IntervalTimer wdTimer;

    in my setup I have:

    ...
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    alternatives to the MK20DX256VLH7

    So I have an integrated teensy project, and I recently wanted to do another run only to find that the MK20DX256VLH7 is out of stock and not available until early next year (like March).

    If anyone...
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    Ok, answering my own question, if you go into...

    Ok, answering my own question, if you go into [Sumotoy's] RA8875 library, open RA8875Registers.h

    find this line:
    ...
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    RA8875 TFT display image washed out

    After wrestling with all manner of issues with this display, most of which turned out to be power-related (they draw a lot of current!) I finally got my 5" display working and displaying BMP images...
  8. Controller Area Network (CAN) message received ISR?

    sadly the term CAN is just not searchable :-(

    Using the FlexCAN library I am current polling for CAN.available() but I'm wondering if it can be implemented as an ISR? Has anyone done this?
    ...
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    Update, I took an MKL04 off a known good board...

    Update, I took an MKL04 off a known good board and installed it on two different bad boards and both started working. I am beginning to believe that I have a bad batch of MKL04's. Is this possible?...
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    Sorry to re-open this thread, but I'm still...

    Sorry to re-open this thread, but I'm still having occasional trouble. I think I'm on an edge condition - some boards work, some don't.

    What I'm seeing consistently on the boards that work is...
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    Ok, I built a minimum configuration, removing all...

    Ok, I built a minimum configuration, removing all non-teensy related components from the board and it works, so all I need to do now is keep adding stuff until it stops working.

    Thank you for your...
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    Thanks Constantin - you are correct - that cap is...

    Thanks Constantin - you are correct - that cap is incorrect and I have removed it.

    I have confirmed that the USB DP and DM lines are intact, go to the right places and are not switched. When I...
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    Thanks - that narrows it down considerably - I...

    Thanks - that narrows it down considerably - I have been reading the threads, hence the reset line test. I'll start looking at the USB section.

    I do like to post here just to get a fresh set of...
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    Correct, when I press the program button the...

    Correct, when I press the program button the reset signal goes low, but does not go high on release.

    Thanks for the correction.

    DougM
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    Integrated Teensy 3.2 reset line issue

    Hi, I am creating an integrated Teensy 3.2 using the MKL04 purchased from PJRC. I have followed the Connections here:

    https://www.pjrc.com/store/ic_mkl02.html

    Here is the schematic:

    5435
    ...
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    Boom! just like that. Thanks HWGuy!! DougM

    Boom! just like that. Thanks HWGuy!!

    DougM
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    Help with Integrated Teensy

    I'm attempting to roll my own Teensy using an MK20 from Digi-key and Paul's Mini54.

    Here is the schematic

    5194

    The problem I'm having is that when I first plug it in it does not register...
  18. I think I have found my solution here: ...

    I think I have found my solution here:

    https://forum.pjrc.com/threads/25370-Teensy-3-0-Watchdog-Timer

    Thanks all!

    DougM
  19. Thanks Constantin - I can't get to the reset pad,...

    Thanks Constantin - I can't get to the reset pad, the boards are already assembled and the Teensys are soldered in place. But I am creating a small board with an 809 supervisor and a FET to do...
  20. slow power supply rise time leads to Teensy 3.1 hanging

    So I have an implementation where the circuit that provides 3.3v to the Teensy is an off-the-shelf part so I can't make any changes to it. The problem is that the risetime to 3.3v is almost 7...
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    Got my TeensyLC's in the mail yesterday! Is...

    Got my TeensyLC's in the mail yesterday!

    Is there an update the Arduino environment and/or to the loader application to support them?

    12:51:32: HID/win32: vid:045E pid:076C ver:0083...
  22. Thread: SMT Teensy 3.1?

    by dougm
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    Is there a tutorial somewhere on how to load the...

    Is there a tutorial somewhere on how to load the Teensy Bootloader (HalfKay?) on the bare ARM chip?

    Also, if you can point me to a link to the commercial licensing agreement?

    Thanks,

    DougM
  23. Thread: SMT Teensy 3.1?

    by dougm
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    I want to do a production run of these and didn't...

    I want to do a production run of these and didn't really want to reinvent the Teensy board, so having to reflow into the current header holes would be too weird to try to explain to a production...
  24. Thread: SMT Teensy 3.1?

    by dougm
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    Height is my concern, not overall size, so it...

    Height is my concern, not overall size, so it would be exactly the same module (including USB and reset button), just remove the TH .100 holes and replace them with the board edge connectors like the...
  25. Thread: SMT Teensy 3.1?

    by dougm
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    SMT Teensy 3.1?

    Paul, are there any plans to sell an SMT version of the Teensy 3.1? something with board-edge connectors like this:

    3583

    We have need for a super-low profile implementation.

    Thanks,

    DougM
  26. Thread: rxtxSerial.dll

    by dougm
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    to answer my own question, the Arduino 1.0.6...

    to answer my own question, the Arduino 1.0.6 windows installer did not work. I manually copied from the .zip and all is well.

    Thanks,

    DougM
  27. Thread: rxtxSerial.dll

    by dougm
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    rxtxSerial.dll

    I build a brand new computer and installed Java on it, then installed Arduino 1.6.0 and ran the Teensy Loader setup program, but it is complaining that it cannot find the above DLL.

    What package...
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    I have one on order, I'll let you guys know how...

    I have one on order, I'll let you guys know how far I get. I got a RasPi A+ as backup...

    Thanks,

    DougM
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    Pimoroni Skywriter HAT

    http://www.adafruit.com/products/2325

    I haven't really played around with it yet, but Limor's page says it only has drivers for RasPi.

    Do you think one of these could be driven by a Teensy...
  30. @wolfmanjm, you are a freaking genius! Loaded on...

    @wolfmanjm, you are a freaking genius! Loaded on the Teensy with your code and the 480x272 firmware and now there is nothing between me and Total World Domination!

    Thank you!

    DougM
  31. @wolfmanjm, yes, I remembered the pullups but I...

    @wolfmanjm, yes, I remembered the pullups but I haven't tried your latest code - I'll get time to work on it this weekend and will let you know. Again, thank you! :-)

    DougM
  32. wolfmanjm, No luck on my side either. I used...

    wolfmanjm,

    No luck on my side either. I used your code to clean up and check for mistakes in my code, and am confident that the right bits are getting there but no response.

    I'm going to start...
  33. If I'm not mistaken he's running the exact same...

    If I'm not mistaken he's running the exact same configuration I am (except for screen resolution) which is as follows:

    The display is a BuyDisplay.com 8875 based 5" panel:
    ...
  34. Do you suppose we could get ahold of Joe...

    Do you suppose we could get ahold of Joe Burmeister?

    https://gitorious.org/gslx680-for-sunxi

    DougM
  35. @Wolfmanjm - you are incredible! I won't...

    @Wolfmanjm - you are incredible!

    I won't have a chance to look at it until next week, but I have no doubt it's way ahead of what I had.

    Thank you!

    DougM
  36. Wolfmanjm, There is a set of firmware specific...

    Wolfmanjm,

    There is a set of firmware specific to the 5" display, there's one for 480x272 and 800x480 and they are different. They are at the bottom of the web page for the specific display you...
  37. @Ex, assuming I am successful yes, I will. So...

    @Ex, assuming I am successful yes, I will.

    So are any of you guys SPI experts?

    The Linux Driver documentation (http://linux-sunxi.org/GSL1680) says this:

    - - - - - - - - -
    The CPU can read...
  38. Ok, no worries. Thanks :-) DougM

    Ok, no worries. Thanks :-)

    DougM
  39. Experimentalist, you have code for the 7" using...

    Experimentalist, you have code for the 7" using the 1680 touch controller? If so can you send it to me or post it? Should be easy to port to the 5" screen. Right now I'm writing it from scratch,...
  40. Has anyone ever followed up on this? I am just...

    Has anyone ever followed up on this? I am just beginning to take a look at it, but if it's been done I'd love to get ahold of some working code. Otherwise I'll see if I can work through it and post...
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    I tried that with the same results. BUT! ...

    I tried that with the same results.

    BUT!

    this works...

    char buf[2];
    ...
    buf[1] = 0;
    ...
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    TFT character display from Teensy

    Hello,

    I have a Teensy 3.1 driving an Adafruit RA8875 board driving a 5" 240x480 display. My problem is very simple, I cannot get an incoming character from a serial stream to display correctly...
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