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  1. Thread: Ra8876

    by KurtE
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    Sorry I don't have any of these displays. And...

    Sorry I don't have any of these displays.

    And if you had not mentioned it, I would have suggested looking at that earlier thread.

    However I wonder how are you powering this display? You...
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    @Paul @luni @Frank B Interval Timer: -...

    @Paul @luni @Frank B

    Interval Timer: - playing around... Not trying to answer the question on IF we should convert the Interval Timer and GPT timers from 24mhz to bus speed, but instead, IF the...
  3. Thread: Arduino 1.8.11

    by KurtE
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    Quick FYI - Looks like 1.8.11 has released! As...

    Quick FYI - Looks like 1.8.11 has released!

    As Paul mentioned in post #1, he will be gone until Tomorrow afternoon and as such probably, best case, we won't see any beta builds to at least Wed...
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    Back to Interval Timer - The simple delta I did...

    Back to Interval Timer - The simple delta I did was simply to change the magic numbers that limit how low the value can go, as to allow it to go low enough to hopefully allow the users to get about...
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    I probably need to look at the layers stuff again...

    I probably need to look at the layers stuff again at some point, but for example it can only work on 800x.. at 8 bits per pixel...
    But did not appear to actually do it...

    So in the test it was...
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    Sorry I have no idea of how you can chain all of...

    Sorry I have no idea of how you can chain all of the shift registers together that big. However I am also not sure you need to? Why can you not simply shift in 8 or 16 or 32 bits at a time and...
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    You are welcome, glad you got it working.. I may...

    You are welcome, glad you got it working.. I may have to play with it, when I am done with some other distractions
  8. Thread: TeensyTimerTool

    by KurtE
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    Again I am totally not the expert... But I know...

    Again I am totally not the expert... But I know in some other libraries, like ili9431_t3 there are times when we need to read a register, but don't care about the results we may do something like:
    ...
  9. Thread: Arduino 1.8.11

    by KurtE
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    Not sure. Could simply be old Serial monitor...

    Not sure. Could simply be old Serial monitor code simply swallowed the CR and new one preserves it in its buffer. Again nothing critical, just at times annoying
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    Sorry, again I don't have enough time (or energy)...

    Sorry, again I don't have enough time (or energy) to go completely through all of this but again will try to give some hints...

    Your slave code starts off in setup, calling SPI.begin() so many of...
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    Update: I hacked up the code to understand how...

    Update: I hacked up the code to understand how RA8875 writing to memory works... and have a version of the drawImage that works in portrait mode. But so far only in the case where the image will fit...
  12. Thread: Arduino 1.8.11

    by KurtE
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    @Paul - probably low priority for next release,...

    @Paul - probably low priority for next release, but...

    A lot of the time when I cut and paste stuff out of the Serial monitor, the text will come out double spaced when I paste it into other...
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    Forgot to mention how slow the current work...

    Forgot to mention how slow the current work around is, portrait mode:

    OMUXC_GPR_GPR17:aaaaaaaf IOMUXC_GPR_GPR16:7 IOMUXC_GPR_GPR14:aa0000
    Initial Stack pointer: 20070000
    ITCM allocated: 65536 ...
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    @momosh13 and maybe @mjs513 and all others... ...

    @momosh13 and maybe @mjs513 and all others...

    Yep the drawImage code in that sketch does not work when in portrait mode.

    Note: I believe that this is and has been an inherent problem with...
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    Sorry, I hope you don't mind I edited and added...

    Sorry, I hope you don't mind I edited and added code tags. Lots easier to read when the indents are preserved (Select text and hit the # button)

    I have been meaning to take a look at SPI slave...
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    If possible use: const char*

    If possible use: const char*
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    I found a link on Ask Ubuntu, which I will fill...

    I found a link on Ask Ubuntu, which I will fill in, Will edit post from PC...

    But the data on my linux showed up like:

    kurt@kurt-XPS-8300:~$
    kurt@kurt-XPS-8300:~$
    kurt@kurt-XPS-8300:~$ cd...
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    For what it is worth, I booted up my old desktop...

    For what it is worth, I booted up my old desktop into Ubuntu 18.04.3 LTS .

    I then plugged in my Teensy with the MTP stuff on it and it showed up as an Icon on my desktop (Teensy MTP Disk) which I...
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    @WMXZ Thanks And sorry for diversion. ...

    @WMXZ Thanks

    And sorry for diversion.

    @luni

    But yes it was a pain... The main sketch looked like:

    #define DEFINE_HEX_GLOBALS
    #if ARDUINO>99
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    @luni - sounds interesting... Awhile ago, with...

    @luni - sounds interesting... Awhile ago, with another project (Robot Hexapod Code), The way I got around this was putting everything in header files, which the main sketch needed to include.
    ...
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    @WMXZ - You are right and I built it from the...

    @WMXZ - You are right and I built it from the unmodified example. One of these days I may get back to visual teensy.

    I guess what I am wondering, is what a typical Arduino user would think,...
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    Thanks, that did the trick! Looks like fun! ...

    Thanks, that did the trick! Looks like fun!

    Wondering how hard it would be to reorganize, the example or examples to make it more Arduino like... I know a lot of people up here don't like/use...
  23. Not a problem... There is now a readme... :D

    Not a problem... There is now a readme... :D
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    I hate to ask a stupid question - But suppose I...

    I hate to ask a stupid question - But suppose I was curious to try this all out.

    What do I need to do to make it work?
    I have SDFat-beta installed in my Arduino\libraries folder as the sdfat....
  25. Could have sworn that some of the comments...

    Could have sworn that some of the comments earlier in this thread already did mention that you started the imxrt-size stuff... :o

    Also I believe credited you with how to add a call to it in...
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    @mjs513 - I put in the code for initialize...

    @mjs513 - I put in the code for initialize Arduino DUE if that #define is set in the user config, it will initialize wire object to use Wire1.

    Also commented out a Serial.printf in RA8875.cpp file...
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    Good morning all... Just an FYI - I created a...

    Good morning all...

    Just an FYI - I created a PR: https://github.com/PaulStoffregen/cores/pull/422
    For now to simply change the magic number of 36 to 17 (could maybe be 18).

    Logic of it is: On...
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    So far I only know of the RA8875 display which...

    So far I only know of the RA8875 display which the link I gave earlier is the one I would use.

    I believe Buydisplay.com sells some other ones with an ssd1963 controller. I believe that only only...
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    @luni, @PaulStoffregen - Again this is not a...

    @luni, @PaulStoffregen -

    Again this is not a big deal to me, but simply wondering if we should simply reduce this test a ways...

    That is this magic number is a simple hold over from the T3.x...
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    Thanks @luni, As an experiment, I edited the...

    Thanks @luni,

    As an experiment, I edited the header file to check for 23...
    Ran a simple test case:

    #include <IntervalTimer.h>
    IntervalTimer my_timer;
    uint32_t count = 0;
    uint8_t led_state...
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    Documentation - I am not sure I know that word ;)...

    Documentation - I am not sure I know that word ;)


    RA8875 - The library that we are playing with comes from: https://github.com/sumotoy/RA8875
    However the owner of this library and many other...
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    I know I have seen this discussed before, my...

    I know I have seen this discussed before, my guess is maybe in the big T4 beta thread...

    But if you look at interval timer header file, you will see that most of the calls all boil down to...
  33. Thread: Arduino 1.8.11

    by KurtE
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    Will be interesting to see what all is in 1.8.11?...

    Will be interesting to see what all is in 1.8.11? Maybe MAC fixes for the new security requirements?

    Things maybe to pull in:

    ADC - @Pedvide has pulled in my T4 support. Hopefully his...
  34. Thread: TeensyTimerTool

    by KurtE
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    @luni - Great stuff. Wondering a couple of...

    @luni - Great stuff.

    Wondering a couple of things: (Note: I am mainly looking at T4)

    This morning I was hacking on the Teensy_I2C_Sniffer sketch (different thread) and wondered if it would...
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    What I have ordered looks like this one you...

    What I have ordered looks like this one you mentioned:
    With Interface: Pin Head Connection-4-Wire SPI
    Power Supply=5V
    MicroSD= ? I think I ordered one with Pin Headers and one without... But have...
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    Thanks, but wondering if TeensyTimerTool might...

    Thanks, but wondering if TeensyTimerTool might work here?
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    As I noticed in the Edit of the above post,...

    As I noticed in the Edit of the above post, neither Interval TImer nor TImer1 will currently allow faster interrupt speed...

    So I hacked it up slightly for T4 to use .5us interrupts...
    In...
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    Might help to know which display you are wanting...

    Might help to know which display you are wanting to use? There could be lots of different displays with that size...

    But for example I know that BuyDisplay sells an RA8875 based 4.3" display...
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    Good Morning all, Note: I pushed up my change...

    Good Morning all,

    Note: I pushed up my change to explicitly set the actual bits instead of assume 0, 1 and shifting... current_portb = (digitalReadFast(SCL_PIN)? 4 : 0) |...
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    I typically use DipTrace - https://diptrace.com/...

    I typically use DipTrace - https://diptrace.com/

    I know that Eagle has improved, but I did not like the User Interface when I started doing stuff... I do have an old license for a Eagle that...
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    @mjs513 and @pd0lew I did a quick hack up a...

    @mjs513 and @pd0lew

    I did a quick hack up a new branch and issued a PR back to Mike: https://github.com/KurtE/RA8875/tree/t4_Wire_choose



    I updated the touch screen example (did not upload...
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    The RA8875 code currently does not have any...

    The RA8875 code currently does not have any support for any Wire object other than Wire.
    (actually slight lie. on Arduino Due it always uses Wire1).

    The Owner(s) of this library could probably...
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    Hi @defragster - I should warn that I have not...

    Hi @defragster - I should warn that I have not given this a ton of thought. I was simply trying to emulate getting the two values for SCL/SDA into the same bits...

    A safer way maybe not to...
  44. Yes I have it working... It would help if you...

    Yes I have it working...

    It would help if you maybe gave a little more details, like, what version of Arduino and Teensyduino you are using? Platform maybe although maybe not so much in this...
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    I did a quick and dirty update to build on T4......

    I did a quick and dirty update to build on T4... I may do a PR, but I did a Arduino code format on my version and it

    It is up at: https://github.com/KurtE/Teensy_I2C_Sniffer_V11/tree/T4

    I did...
  46. I could be wrong but I have no idea why you would...

    I could be wrong but I have no idea why you would be looking at the state of the GPIOB_PDIR register? This is the Input state (read only register), of those IO pins on that object...
    You can readn...
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    Sticky: Yes I believe the update list meant to say...

    Yes I believe the update list meant to say QuadEncoder as it was attributed to @mjs513...
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    Sticky: Which Quad Timer Library? The user @luni has...

    Which Quad Timer Library?

    The user @luni has their own library that includes Quad Timer... Mentioned in a current thread:
    https://forum.pjrc.com/threads/59112-TeensyTimerTool

    PWM uses it for...
  49. It will be somewhere under your temp directory......

    It will be somewhere under your temp directory...

    On Windows 10, you can bring up a browser window, and in address field type in: %temp%
    In the resulting folder you may see directories with...
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    For whatever it is worth I was able to compile it...

    For whatever it is worth I was able to compile it for Arduino 3.2 after I uncommented the #if/#endif around the include of the math library at the top.

    Arduino does give me lots of warnings like:...
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