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    I just gave it a try and works even if you move...

    I just gave it a try and works even if you move it right after setArmClock and before the SNVS code block. Maybe not so strange to set the sys clocks first then set the PIT?
  2. @defragster - @MichaelM Not sure if you saw...

    @defragster - @MichaelM

    Not sure if you saw the @manitou's post #71 where there are a couple of quick fixes for the PIT issue.

    Just compiled @KurtE's async sketch with 1.8.10/1.48B1 without the...
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    @manitou I just reinstalled TD1.48beta1 and...

    @manitou

    I just reinstalled TD1.48beta1 and the ILI9341_t3 library. I then commented out PIT_MCR = 0; and it worked without issue. So the fix is exactly as you described to turn off the timer.
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    Interesting --- just commenting out those lines...

    Interesting --- just commenting out those lines and it still hanging on my T4. I am using pins 9-13, don't have anything else attached.

    EDIT: went back to 1.8.9 IDE with 1.47b5 and its still...
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    @Taichi Simple answer is yes they can. Use...

    @Taichi
    Simple answer is yes they can. Use similar ones that can also be purchased from digikey.
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    @KurtE Tried to just un-comment the #define...

    @KurtE
    Tried to just un-comment the #define PRINT_DEBUG_STUFF and recompiled but demosauce still hung the T4. Maybe something else you un-commented?
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    @KurtE @bicycleguy Well here is something...

    @KurtE @bicycleguy

    Well here is something else. I just tried demosauce with ILI9341_t3n and it crashes the same way. This is reminds me of the problem we were having with uncanny eyes as well.
    ...
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    @mendez Curious that it seems your "noise" is...

    @mendez
    Curious that it seems your "noise" is isolated to around 5500-5700 (rpm? counts?). In going through the comments on the amazon page I saw that I person actually installed 10k pullups to the...
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    @defragster decided to give you XXX=3 pin test a...

    @defragster decided to give you XXX=3 pin test a shot, got these results for reference on my board with the SD card socket still attached:

    PULLDOWN Start Vals:
    PULLDOWN :: TEST to 3.3V
    ...
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    Nice = wish I had that when I was testing would...

    Nice = wish I had that when I was testing would have saved a lot of time.
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    Yeah - I ordered the board too late for this...

    Yeah - I ordered the board too late for this effort but it would have come in handy, of course it comes tomorrow :(
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    Was thinking about that post when i was looking...

    Was thinking about that post when i was looking at the schematics this time around. It just didn't register what i was probing on the cable connector and the location on the SD Card connector until...
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    See my post #230. Figured out my mistake.

    See my post #230. Figured out my mistake.
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    @firehopper - @defragster - @KurtE @firehopper...

    @firehopper - @defragster - @KurtE

    @firehopper - my sincerest apologies - but believe you are absolutely correct, pins connections are reverse on the SD Card Connector! Good catch! My mistake is...
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    Think of it as an xray looking from the top:...

    Think of it as an xray looking from the top:
    17654

    Those connectors always drove me crazy with the correct connections.
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    Not sure that is right pin 1 should be located by...

    Not sure that is right pin 1 should be located by that little tab which would mean 39 should cross over from cable to sd connector.:
    17653

    Think the wiring is correct.
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    Ok - couldn't resist. Just ran this as a test: ...

    Ok - couldn't resist. Just ran this as a test:


    void loop() {
    // put your main code here, to run repeatedly:
    SPI2.beginTransaction(SPISettings(10000000, MSBFIRST, SPI_MODE0));
    ...
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    The other thing you can do for sanity is going...

    The other thing you can do for sanity is going into the 1.8.10 director navigate to hardware/teensy/avr/libraries and see if there it any in that directory.
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    Something doesn't make sense - know you don't...

    Something doesn't make sense - know you don't want to here this but how about reinstalling 1.8.10 and 1.48B1?

    here is the results of the your sketch with that config:
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    Don't assume - no -to be honest didn't think...

    Don't assume - no -to be honest didn't think about it. Was actually thinking about hooking up one of the displays to test it out.
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    @KurtE That's good news. Will have to give it a...

    @KurtE
    That's good news. Will have to give it a try later - playing with the little one right now :)
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    @bicycleguy I just checked my install of IDE...

    @bicycleguy

    I just checked my install of IDE 1.8.10 and TD1.48B1. Teensy libraries do show for me when I have the T4 selected. Know this is an obvious one but you did install the Teensy...
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    @KurtE Tried changing both DSE and Speed but...

    @KurtE

    Tried changing both DSE and Speed but no luck. Now I just tried attaching a SD Card reader to SPI2 and defined connections in SD Cardinfo as:

    const int chipSelect = 36;

    void setup()...
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    Morning @KurtE You must be reading my mind. ...

    Morning @KurtE

    You must be reading my mind. Have a sniffer on order so I can check the pins - should be here tomorrow afternoon.

    Was thinking about the DSE as well but wasn't brave enough to...
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    Tried the new SDFAT library yesterday as well and...

    Tried the new SDFAT library yesterday as well and using SDIO just didn't work. I tried the new lib in the PRJC breakout board so I know it works as well. Cleaned up the solder around the SD socket...
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    Yes software reset is a known problem - was...

    Yes software reset is a known problem - was discussed over on this thread:
    https://forum.pjrc.com/threads/57553-T4-software-restart-procedure-and-freeram-function?highlight=0x05FA0004
  27. Well there are a lot of examples in the Audio...

    Well there are a lot of examples in the Audio library itself when you install Teensyduino. In addition to that you can start here:

    https://www.pjrc.com/teensy/td_libs_Audio.html
    and here...
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    @Bill Greiman I used window10 to format the...

    @Bill Greiman

    I used window10 to format the card as fat32 maybe that's the cause. Ran into this once before where I had to use sdformatter.

    Thanks for the tips on debug setup.

    EDIT: after...
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    @defragster. Strange just can't figure out why...

    @defragster. Strange just can't figure out why it doesn't work when it should unless its the sd card socket itself?
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    @Bill Greiman Fantastic Bill. Just gave it a...

    @Bill Greiman

    Fantastic Bill. Just gave it a try on Paul's breakout board with SDINFO sketch:

    SdFat version: 2.0.0
    Assuming an SDIO interface.

    type any character to start
    init time: 216 ms
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    @... Using Paul's freq sketch in the referenced...

    @...
    Using Paul's freq sketch in the referenced post I am getting these values (kHz)

    34 - 1.85-1.9
    35 - 3.73
    36 - 7.48
    37 - 14.98
    38 - 3.73
    39 - 1.857-1.9
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    Ok. This morning did 2 things. Removed the...

    Ok. This morning did 2 things. Removed the pull-up resistor on pin 36 and replaced the TPD chip, didn't like how I did it before. Really need to use the larger style version that @defragster...
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    Was thinking about removing it tomorrow if I can...

    Was thinking about removing it tomorrow if I can get it off
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    Just as a note I did populate the pullups.

    Just as a note I did populate the pullups.
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    @KurtE - @defragster Got it finally to show...

    @KurtE - @defragster

    Got it finally to show some life. I got this once:

    Initializing SD card...Wiring is correct and a card is present.

    Card type: SD1
    Could not find FAT16/FAT32 partition....
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    Thanks @defragster. This is definitely past my...

    Thanks @defragster. This is definitely past my bedtime but had to try it first.

    Testing done with the cover off:

    Test #1 = jumpers between edge pins, you can see where pin 38 does not work on...
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    Was going back through the thread and didn't...

    Was going back through the thread and didn't really see anyone that had any success.

    Yep I checked the connection to the sd card socket using this pinout for the socket:...
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    @defragster Ok - having tough time here -...

    @defragster

    Ok - having tough time here - where is your TD_SDIOPinTest sketch - cant seem to find it - can you post it here.
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    The way I set mine up I have just enough room to...

    The way I set mine up I have just enough room to slide the cover on and off - did have to unsolder it though. And yeah the pins are close that is why I slide a dummy card in :). Will have to ring...
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    @defragster - @KurtE Have a good one for you. ...

    @defragster - @KurtE

    Have a good one for you. If I use the blink sketch and test the edge pins only pin 38 does not blink. So I removed the SD Connector cover and tested the pins on the SD...
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    @KurtE - thanks that reminds me. That TPD chip...

    @KurtE - thanks that reminds me. That TPD chip is really hard to solder, at least for me - think I may have messed it up.

    Dan - You might want to think about using the TPS chip that Paul used...
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    Picked them up on Amazon:...

    Picked them up on Amazon: https://www.amazon.com/gp/product/B01DCDJJ6C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. They been coming in handy.
  43. @KurtE Merge completed

    @KurtE

    Merge completed
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    @defragster - I agree whole heartedly with @KurtE.

    @defragster - I agree whole heartedly with @KurtE.
  45. Thread: I2C on Teensy4

    by mjs513
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    @ChrisAldridge i2c_t3 has not been updated by...

    @ChrisAldridge

    i2c_t3 has not been updated by the author for use on the T4 that I know of. You will have to Wire.h, the normal I2C library for use with the T4.
  46. @KurtE My apologizes. A little dense lately. ...

    @KurtE

    My apologizes. A little dense lately. I get it now. Will have to fix the ILI9488 lib as well.


    EDIT: Updated the ILI9488 library as well as the ST7735_t4_rewrite branch with your...
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    Yes there is. This is curtesy of @defragster: ...

    Yes there is. This is curtesy of @defragster:

    #if 1
    #ifdef __cplusplus
    extern "C" {
    #endif

    #if defined(__IMXRT1062__)
    uint32_t set_arm_clock(uint32_t frequency);
    #endif
  48. @KurtE That's strange. I have been using both...

    @KurtE

    That's strange. I have been using both libs without any linker issues. Just did a double check. Just for reference I am using Adafruit GFX lib that Paul packaged with Teensyduino. ...
  49. @KurtE Just tested the changes I made to the...

    @KurtE

    Just tested the changes I made to the ST7789/7735 libraries with a 7789 with no CS pin and it worked fine once I used the right tft.init format :) If ok with you I will go ahead and put...
  50. Thanks Kris - just saw the post, very cool.

    Thanks Kris - just saw the post, very cool.
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