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  1. Replies
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    Sorry, I may not be much help here, but earlier I...

    Sorry, I may not be much help here, but earlier I did solder on cable connectors and the like on T4 and my own board and sometimes my soldering skills failed and I ended up with a short between a...
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    as for the new HALF_DUPLEX, hopefully Paul will...

    as for the new HALF_DUPLEX, hopefully Paul will pull it in for the next beta...

    Best way to setup to do half duplex to control AX12 servos. I have been doing it several different ways... Which...
  3. Thread: Teensy MicroMod

    by KurtE
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    Again if I am looking at the pin data correctly ...

    Again if I am looking at the pin data correctly
    40 2-04 are pins B0_04
    41 2-05 B0_05
    42 2-06 B0_06
    43 2-07B0_07
    44 2-08B0_09
    45 2-09 B0_09

    So that would probably imply we would have...
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    Thanks Paul, Wondering about comments in...

    Thanks Paul,

    Wondering about comments in startup.c

    // TODO: zero uninitialized EXTMEM variables
    // TODO: copy from flash to initialize EXTMEM variables
    // TODO: set up for...
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    No, the original ILI9341_t3 was done by Paul...

    No, the original ILI9341_t3 was done by Paul again starting off with Adafruit library as more or less the starting point. Several of us did some fixes and enhancements to this library.

    The...
  6. Thread: Teensy MicroMod

    by KurtE
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    Looking at the GPIO pins defined in core_pins.h ...

    Looking at the GPIO pins defined in core_pins.h
    I believe pins: 0-33 match T4.1, 34-39 SDIO
    and pins 40-45 look like something different
    Pin Port-Pin
    34 3-15 SDIO? Note I converted GPIO6...
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    Glad you have it resolved. My guess is some...

    Glad you have it resolved. My guess is some displays are either not setup to return this data maybe thinking most people don't read... Or I know with some display chips they don't properly handle...
  8. Thread: Support

    by KurtE
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    Sorry I am not sure, what is going on, but my...

    Sorry I am not sure, what is going on, but my first guess would be to check any soldering, since digital pin 12 is next to a 3.3v pin, so if there is some stray solder between these two pins, then...
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    I have continued to play with the update and so...

    I have continued to play with the update and so far I think this takes care of it...

    Note: Maybe for next (after this fix) wish we had something like this in the imxrt1062_t41.ld file:
    ...
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    Good morning Paul, I tried blink with T4.1 and...

    Good morning Paul,

    I tried blink with T4.1 and as well my camera sketch run from sublimetext build and both compiled and programmed two differnt T4.1s
  11. Thread: Support

    by KurtE
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    Also might help if you mentioned a few additional...

    Also might help if you mentioned a few additional things like, did you order it direct from PJRC or from a retailer? Which Teensy?
    If it is one of the older ones like a Teensy 2 and it was...
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    Yep - it was a quick and dirty (originally from...

    Yep - it was a quick and dirty (originally from Frank :D ), that I have played with and find useful. I probably should cleaned up some. Especially how it depends on exact strings...
    Also maybe...
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    Sorry, not sure what you are asking? SPI to...

    Sorry, not sure what you are asking?

    SPI to connect to what? At least for experimenting, I will often start off with my Teensy plugged into a breadboard, and then use some form of breadboard wires...
  14. Again assuming that you are using AD_B1_03 As...

    Again assuming that you are using AD_B1_03 As your example:
    You will need to set it to mode 8... which you have the line commented out. Sometimes I might cheat a little like:

    pinMode(40,...
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    I did some hacking and my T4.1 programs now......

    I did some hacking and my T4.1 programs now... More or less reverted some of it...

    my imxrt1062_t41.ld right now looks like:

    MEMORY
    {
    ITCM (rwx): ORIGIN = 0x00000000, LENGTH = 512K
    DTCM...
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    I am trying to look at the differences in the...

    I am trying to look at the differences in the code between the two releases and wondering about why the .vectors was removed in both the .ld files as well as bootdata.c

    What I am curious about, is...
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    Well I had my code print out what it had for...

    Well I had my code print out what it had for estack and ebss and it prints:
    estack:0 ebss:2002c2c0

    But that is also true for T4 now as well... So next up to see why?

    Figured out the tool...
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    Side Note: I ran into issues yesterday or the day...

    Side Note: I ran into issues yesterday or the day before where my builds were not working before this release, but that was because I had my Cores project directory linked into the Teensyduino...
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    Paul quick update, Tried also on Ubuntu 20.04...

    Paul quick update,

    Tried also on Ubuntu 20.04 64 bit,

    Again tried T4.1 with blink (slightly edited 1000->250 as to see difference in blink. Again it programmed a T4.1 (dual PSRAM), After I...
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    Good Morning Paul, I installed the beta...

    Good Morning Paul,

    I installed the beta Windows 10 64 bit on a clean install of Arduino 1.8.13 (renamed old, and unzipped the arduino zip file...) I installed the beta....

    Then first attempt, I...
  21. Mine does, in the exact section that Paul...

    Mine does, in the exact section that Paul mentioned: 13.3.2.1 (Page 986)
  22. Sorry I am not really sure what you are asking...

    Sorry I am not really sure what you are asking and what information you are trying to understand.


    Note: I have not done much of anything with the SYSTICK code other than use results so not much...
  23. From the comment, because it made it work... ...

    From the comment, because it made it work...

    Probably trial and error. MarkT's answer if probably a good guess.
  24. I am guessing it is still based off of the stuff...

    I am guessing it is still based off of the stuff up on: https://github.com/braingram/teensy_tcm8230md

    Where I believe he has some of the pins defined as:

    // CSI_MCLK AD_B1_05
    #define ECLK_PIN...
  25. If you get a chance, would you mind posting more...

    If you get a chance, would you mind posting more of the code that shows your current setup,

    I have made some progress with the DMA code, but so far having it work cleanly is sort of a pain. So...
  26. You are welcome. Glad it is working. If you...

    You are welcome. Glad it is working.

    If you get a chance, you might try sending message or the like to aliexpress telling them this, such that hopefully they will update their listings.
  27. I am pretty sure they have wrong information on...

    I am pretty sure they have wrong information on those links... If you look at the one I included and look at the pictures, you will see the one that shows the back of one matches the one you have. ...
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    Maybe somewhere on this thread: But from the...

    Maybe somewhere on this thread: But from the thread: https://forum.pjrc.com/threads/63958-Schematic-error-in-T4-0-or-T4-1-on-SD-pins

    The SDIO pins on the schematic have the signal names reversed...
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    Yep looks like a Bug on the schematic label of...

    Yep looks like a Bug on the schematic label of pins 38 and 39 on T4.
  30. I doubt that it is an ILI9341 as they typically...

    I doubt that it is an ILI9341 as they typically have a resolution of 320x240.

    Might help to have links to the ones you purchased. There are several different displays in the size with different...
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    You are welcome. Question is what AtoD...

    You are welcome. Question is what AtoD converter? Don't a lot of them use SPI or I2C to communicate? If so their communications using DMA will likely be different than this work. Probably closer...
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    My DMA camera stuff is up at:...

    My DMA camera stuff is up at: https://github.com/KurtE/Arduino_OV767X/commits/Teensy_t4
    Note: It is a PIP (Play In Progress) As I am just doing it for the fun of it.

    The DMA version up there...
  33. I could be wrong, but I don't think this will...

    I could be wrong, but I don't think this will work. The Ubuntu window is a command line orientated setup, and I don't believe it has any graphical setup built in.

    Not sure how well it would...
  34. You are welcome, Note when I did the...

    You are welcome,

    Note when I did the USBSerial_BigBuffer (still waiting on PR), I added an extra parameter to the constructor, to limit it to minimum size USB RX/TX the instance should claim......
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    XBox One has never worked. I have worked on it...

    XBox One has never worked. I have worked on it on and off, but it will require new portions of new Bluetooth subsections.

    However PS3 and PS4 have worked. I have found the PS4 to be more...
  36. Sorry I don't know the inner workings of MIDI...

    Sorry I don't know the inner workings of MIDI stuff. If it can use larger buffers and as such take longer to pack, than maybe could impact latency. But I again I don't know the interface to know if...
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    As @MarkT asked, it is really hard to know what...

    As @MarkT asked, it is really hard to know what you are doing, without knowing more of the details.

    Example: if you hooked up T4.1 to ESP32, with TX3(14) connected to the RX of the ESP TTL Serial...
  38. Sorry I am sort of confused on your setup and the...

    Sorry I am sort of confused on your setup and the like: Also I don't do much/anything with MIDI nor Audio so may not be much help here.

    But if I look at the code like:


    myusb.begin();...
  39. Another option would be to pick up the USB pads...

    Another option would be to pick up the USB pads on the bottom of the T4.1.

    That is you have the small round pads on bottom of board:
    https://forum.pjrc.com/teensy41_2.jpg

    They are the two...
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    I believe that the ili9341_t3 library draws the...

    I believe that the ili9341_t3 library draws the fonts with or without background color.

    However I know the Adafruit library Adafruit_ILI9341 nor any of their libraries did not (probably still...
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    Sorry the easiest way to answer this is to do the...

    Sorry the easiest way to answer this is to do the math...
    That is, if you look at the code.

    bool begin(void (*funct)(), float microseconds) {
    if (microseconds <= 0 || microseconds >...
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    A while ago, we did update the IntervalTimer to...

    A while ago, we did update the IntervalTimer to allow you to get to maybe something like 0.73 microseconds.

    That was a quick and dirty fix to get us to about the same min interval as T3.2
    ...
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    It may also depend on your whole setup. For...

    It may also depend on your whole setup.

    For example with earlier ROS, I know some Arduino devices were setup to handle a ROS topic or two using ROS Serial support...

    With ROS2, I know that...
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    Glad that worked. Sorry I was not able to see...

    Glad that worked. Sorry I was not able to see why the other did not work... And my Ubuntu 20.04 Linux machines don't have the hidrd-convert utility on them,
    and the: sudo apt-get install hidrd...
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    Good News... Depending on your machine...

    Good News...

    Depending on your machine platform, Some of the Github stuff is getting a bit simpler.

    Example if you are running a windows machine, you install the Github for windows app. Then...
  46. Did some more testing... And I hope I did not...

    Did some more testing... And I hope I did not break anything, but cleaned it up and issued PR:
    https://github.com/PaulStoffregen/USBHost_t36/pull/40

    At a minimum it also helps to support Two...
  47. I may be mainly talking to myself ;) For the...

    I may be mainly talking to myself ;)

    For the heck of it to test with T4 with MultSerial, I created a version of the example sketch USBToSerial that allows you to build for
    USBType of Serial,...
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    Sparkfun new QWiiC shields...

    Looks like Sparkfun just released some new shields for the Teensy that make it easy to connect up I2C devices that use either the
    Sparkfun QWIIC connectors as well as the Adafruit Stemma QT...
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    There are probably a 1000 different ways to do...

    There are probably a 1000 different ways to do things like this, depending on the complexity of your devices and needs..
    For example if you have 4 devices and you only want to read one per cycle...
  50. @All - To properly support this or similar...

    @All - To properly support this or similar devices, is a little more complicated.

    That is the current branch as I have pushed up for the previous post is a somewhat minimal change. It simply...
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