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  1. Replies
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    @loglow, - Maybe it was just me, but with the...

    @loglow, - Maybe it was just me, but with the first version, I found using my 10 left thumbs, that it was hard to solder the front connector as well as the SD Card slot. Which one should you try to...
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    Not sure yet, they were sent out for fabrication...

    Not sure yet, they were sent out for fabrication on Monday, so not sure yet when they will be back. I do have one that I got direct from FRDM, which I will use to test the first of the new boards,...
  3. Sounds good - Yep it looks like some of the...

    Sounds good - Yep it looks like some of the tables I have were wrong. I updated my excel.

    Updated code to reflect and added to my open Pull Request that added T4 support for AVR register...
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    @loglow - If it would help, I would be happy to...

    @loglow - If it would help, I would be happy to try another one. It may take me a few days plus to get to soldering it. Right now waiting for parts to try assembling my breakout using the FRDM (not...
  5. @Paul and others. I just did a PR with a pass...

    @Paul and others.

    I just did a PR with a pass of the code that appears to work at least in limited tested for PORTC/B/D AVR register emulations.
    If anyone is interested Code is up at:...
  6. Again it is sort of interesting. There is some...

    Again it is sort of interesting.

    There is some on another thread this morning on someone who was able to read in 8 bits on very specific pins, but had to do some shifting and masking........
  7. Sometimes code fragments like the above it is...

    Sometimes code fragments like the above it is hard to know what the code will compile to without having any idea of some of your definitions.
    That is if you look at the code fragment:...
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    Good question: Might help to know which Teensy? ...

    Good question: Might help to know which Teensy?

    Then if I could detect when this state was happening, would probably write some code to dump out the state of some of the registers associated...
  9. There is no such thing as PORTC and PORTD on...

    There is no such thing as PORTC and PORTD on these boards (nor Teensy 3.x), they are more specifically used for emulating an 8 bit AVR processor such as used on an Arduno Uno or Mega.

    On the...
  10. Thread: A microSD puzzle

    by KurtE
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    Again really hard to know how you have the...

    Again really hard to know how you have the hardware setup. That is you have those 4 CS pins, Do you have them with external Pull Up resistors?

    If not you need to either do that and/or you may...
  11. Hopefully it will be done in a few weeks. My...

    Hopefully it will be done in a few weeks. My strong guess is that it will be compatible with the drivers/libraries for the current Teensy 3.x boards.

    So for example for keyboard you can look at...
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    What is the difference between the two of them?...

    What is the difference between the two of them? Hard to say without looking through their reference documents. Could simply be more or less the same display but configured slightly different.
    ...
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    It might help to have a lot more details, like...

    It might help to have a lot more details, like what library are we talking about? Or sketch?
    For example I did a quick search of all of the files installed by Teensyduino for ENC_PORT and did not...
  14. Also maybe not exactly what is asked here. ...

    Also maybe not exactly what is asked here.

    There are settings for the different IO pins on how fast that pin should be run, how strong of a signal...
    Example look at the document at:...
  15. @mjs513 @MichaelMeissner, ... - Actually we all...

    @mjs513 @MichaelMeissner, ... - Actually we all did a lot of stuff and helped figure things out... With lots of hair pulling...

    One of these days I will get back to playing with it... Maybe for...
  16. Sorry, this one won't help: But on the IMXRT1062...

    Sorry, this one won't help: But on the IMXRT1062 there is an ability to read or write multiple pins at the same time using FlexIO subsystem.

    In particular you can configure it for 1 bit, 4, 8, 16,...
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    I could be wrong, but I believe for those pins...

    I could be wrong, but I believe for those pins which connect to both, it always uses the first one... i.e. the code table in analog.c does not keep mark that it can use either. But since the code...
  18. Fixed: Did PR:...

    Fixed: Did PR: https://github.com/mjs513/ILI9488_t3/pull/14
    Simply added #else case to define RAFB for boards which don't support frame buffers, so that the other API won't compile error
  19. Looks like there is probably an issue with some...

    Looks like there is probably an issue with some that should have been removed by #if type statements.

    However if whatever program your are trying to compile actually tries to use frame buffer......
  20. Hopefully someone will have the exact information...

    Hopefully someone will have the exact information you are looking for.

    Also not sure from your question what information are you really wanting or needing. For example if you are simply wanting...
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    Good morning @mjs513... Again not sure who might...

    Good morning @mjs513... Again not sure who might be interested, but I put my Excel documents up on github: https://github.com/KurtE/TeensyDocuments
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    I might need to double check my spreadsheet, but...

    I might need to double check my spreadsheet, but I have:

    Pin Name GPIO Analog
    0 AD_B0_03 1.3
    1 AD_B0_02 1.2
    2 EMC_04 4.4
    3 EMC_05 4.5
    4 EMC_06 4.6
    5 EMC_08 4.8
    6 B0_10 2.10
  23. Replies
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    Sorry I am not an expert at all in Analog nor...

    Sorry I am not an expert at all in Analog nor work for the company... Nor know what ratiometric means or implies... Other than there is a ratio...

    But if it were me, probably the first thing I...
  24. The short answer is no. The longer answer is...

    The short answer is no.

    The longer answer is probably not. At least not in a contiguous 16 IO pins associated with one IO port.

    If you look at the section of the Processor reference manual...
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    Warning I am not an expert in Analog stuff, so...

    Warning I am not an expert in Analog stuff, so hopefully others might be able give you more complete answers.

    First thing I would suggest is to look into the ADC library: More details up at:...
  26. It should not be hard to make work for both. ...

    It should not be hard to make work for both.

    My guess is you could just change the two #ifdef statements in the header file like from:

    #ifndef __AVR__

    to something like:

    #if !DEFINED(...
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    Looks like fun, I don't have much time to...

    Looks like fun,

    I don't have much time to look at this in detail,

    But, my quick look shows that you are using the ILI9341_t3 library and it looks like your project may want as high of speed...
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    @xerox - There have been a few displays and the...

    @xerox - There have been a few displays and the like suggested here, however it is very hard for any of us to give you any complete suggestions, with as little information as you have so far...
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    Note: my quick look through the document, I only...

    Note: my quick look through the document, I only see it mention using Serial communications, so not sure if it supports Wire?

    I know that the Sparkfun Lidar Lite:...
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    There are lots of displays out there, But again...

    There are lots of displays out there, But again it may depend on what you want and how much code you wish to change.
    For example there is a whole thread (probably more than one) on the RA8875...
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    The issue with supporting different USB types on...

    The issue with supporting different USB types on the T4 is not because it can run at higher speeds like at 480mbps, it is because it is a complete different hardware and software setup for USB...
  32. Hopefully others who use MIDI and the like will...

    Hopefully others who use MIDI and the like will give you a more detailed answer.

    But I will try to give at least $.02 worth of information.

    USB on Teensy 4 - LUFA? First off, hopefully a...
  33. Just an FYI - I just pushed up an update, that I...

    Just an FYI - I just pushed up an update, that I believe makes flush work reasonably well.

    The simple version that simply waits for us to output the last byte in the queue into the shift buffer...
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    Mine won't get here until Wednesday ;) Needed...

    Mine won't get here until Wednesday ;)
    Needed to pick up a few more Qwiic things to try out once I build a board with connectors
  35. I know what you mean, some of these descriptions...

    I know what you mean, some of these descriptions are not very obvious. And their examples are like here is it working on Pin X timer0 shifter 0... No where to they explain how each of the fields in...
  36. Thanks @tonton81 - CANFD - needs LUPUART... Looks...

    Thanks @tonton81 - CANFD - needs LUPUART... Looks like they are pretty similar in the clock tree...

    As for this one, I isolated down which set of Serial.printf(...) statements when disabled...
  37. :D - looks like the big test may be working...

    :D - looks like the big test may be working now...
    18156

    EDIT: Although turning off debug appears to cause things to not work right??? So still debugging
  38. @mjs513 (and others) - I may have fixed my...

    @mjs513 (and others) - I may have fixed my multiple FlexSerial transmit issue...

    I believe: The TIMCTL register did not have the right TRGSEL value (I think).
    I think it needs to 4* Shifter...
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    Probably saw the main website page:...

    Probably saw the main website page: https://www.pjrc.com/teensy/3volt.html
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    Just an FYI - I have been playing around with new...

    Just an FYI - I have been playing around with new design board based off of the FRDM (non-usb), that I am in the process of ordering a group from PCBWay... Right now waiting for review...

    Sort of...
  41. You might simply try the st7735_t3 library which...

    You might simply try the st7735_t3 library which now includes the st7789. We also have frame buffer support plus option of DMA updates.
  42. Hi @mjs513 - Still does not make sense to me......

    Hi @mjs513 - Still does not make sense to me... Maybe I am just being dense.

    For example:
    If you look at the SHIFTSEIN register P3049, the bits are defined for Transmit:

    bits 3-0
    SSIE...
  43. Hi @mjs513.... Not sure about the line:...

    Hi @mjs513....

    Not sure about the line: Serial.printf(" (index %d, SDK flag %d)",_tx_shifter, (0x1 & p->SHIFTSTAT) && (p->SHIFTSIEN & (1U << _tx_shifter)));

    In particular the part in RED. ...
  44. Power issue? I believe the LC has a smaller...

    Power issue?

    I believe the LC has a smaller 3.3v voltage regulator, which says you have about 100mA max whereas the 3.2 250mA... So depending on your setup maybe power issue?
  45. Yep - But all of this is strange.... Here is...

    Yep - But all of this is strange....

    Here is debug output:

    pin 3 maps to: 20000bc0, port: 401ac000(FLEXIO1) pin 5
    timer index: 0 shifter index: 0 mask: 1
    Before configure flexio
    CCM_CDCDR:...
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    For what it is worth, I do not believe that T4...

    For what it is worth, I do not believe that T4 boards support 8 bit or 16 bit outputs to the GPIO registers.

    @Paul mentioned this in the thread:...
  47. @mjs513 - I hacked up another sketch that has to...

    @mjs513 - I hacked up another sketch that has to FlexSerial objects and just does output. Did not bother to echo (also posted this one to NXP).

    ...
  48. Thanks @Paul, Another interesting sub-question...

    Thanks @Paul,

    Another interesting sub-question is in practice what is the performance differences and trade offs for the different caching options.

    Example we currently use: MEM_CACHE_WBWA ...
  49. @mjs513 - I also assumed it was a bug like you...

    @mjs513 - I also assumed it was a bug like you mentioned, except the only place I stuff something into the shift buffer is in that function which does Serial prints, which are not happening...

    As...
  50. Good Morning @mjs513 - I have now posted a...

    Good Morning @mjs513 -

    I have now posted a semi verbose question up on the NXP forum... Assuming it gets approved by the Moderator...
    Will be interesting to see if I get any suggestions...
    ...
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