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  1. Replies
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    Just wanted to report on Mac Catalina 10.15.7 a...

    Just wanted to report on Mac Catalina 10.15.7 a fairly complex T4.1 web server program that moves a directory full of sub folders and files from the SD to the PSRAM on startup works with no changes. ...
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    @joepasquariell The count_prev = 0; in the...

    @joepasquariell
    The count_prev = 0; in the library seems to have done the job and fixed the problem in some other programs I'm working on.

    thanks
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    Installed ok on Mac Catalina 10.15.7. Not sure...

    Installed ok on Mac Catalina 10.15.7.

    Not sure if me or FreqCount() is still not able to have its interval changed and expect good output in the first cycle. This is the T4 FreqCount example code...
  4. @manitou, thanks for the response and info. I...

    @manitou, thanks for the response and info. I need to study for a while.

    I'm trying to make a T4 disciplined 10MHz Oven controlled crystal oscillator with less parts and more glitz than what the...
  5. gpsAssistedCounter works but don't understand why

    Combined manitou48 gpsgpt.ino
    https://github.com/manitou48/teensy4/blob/master/gpsgpt.ino
    and Pauls FrequencyCount
    https://www.pjrc.com/teensy/td_libs_FreqCount.html

    To make a GPS assisted...
  6. Surely you meant to say "This month I wanted to...

    Surely you meant to say "This month I wanted to tackle...? ;)
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    see below...

    see below
    https://forum.pjrc.com/threads/64216-Beware!-T4x-RTC-power-consumption?p=257979&viewfull=1#post257979
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    That idea of using Teensy Loader "Open HEX File"...

    That idea of using Teensy Loader "Open HEX File" to find the .elf file is a good one, easiest novice way by far. Note that the window that opens will show the .elf file grayed out which normally...
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    Awesome project! Thanks for making it available....

    Awesome project!
    Thanks for making it available. I've finally gotten it running with a ublox NEO-M8N-0-10 module and active antenna.

    In settings.h
    uncomment the #define GPS_USES_RMC
    change the...
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    @vjmuzik Downloaded your latest NativeEthernet...

    @vjmuzik
    Downloaded your latest NativeEthernet and FNET libraries. Some server code that attempts to load a bunch of j-script and pictures now works much better. It was having problems where it...
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    When I mess up like using the wrong file or to...

    When I mess up like using the wrong file or to high a number get either ??:0 or :?
    To verify if working, put in a number like 50 or 100 (instead of the 0x3042E) you should see some library...
  12. I hate it when that happens:( Especially...

    I hate it when that happens:(

    Especially when I have custom hardware and programs so convoluted nobody wants to look at it.
    A few thoughts:
    1. The new 1.54 Teensduino with the CrashReport...
  13. ADC example code for T4.x using DMA not working.

    With example programs: adc_dma, idc_timer_dma, adctimer_dma_oneshot and maybe others
    Same as posted here:
    ...
  14. You are correct, whether the RTC was running or...

    You are correct, whether the RTC was running or not, can't tell because as you said it uses the cleared memory to reset the clock. On mine its at about 1.238V that it dies. Oh well, fun thought.
  15. I can't be sure the clock was running because I...

    I can't be sure the clock was running because I didn't check the time and re-programming resets a dead clock as you know. I'll reload the original program and see if and how long the clock keeps...
  16. see you posted some more info, thanks

    see you posted some more info,

    thanks
  17. After posting, over dinner it dawned on me that...

    After posting, over dinner it dawned on me that maybe the battery was bad and sure enough checking, it is 1.22V. Apparently this is enough to keep the RTC going accurately but not enough for the...
  18. @defragster Copied the sketch above (#7) and it...

    @defragster
    Copied the sketch above (#7) and it seems to work fine on a battery backed T3.2 when running or reprogramming it starts where it left off. But when I unplug the USB and replug it starts...
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    The CrashReport feature is awesome! But I think...

    The CrashReport feature is awesome! But I think there will be a huge number of questions, (from me alone!) Is there a thread for these besides the not so obviously named...
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    Thanks defragster

    Thanks defragster
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    macOS 10.15.7 Installed and ran normally. My...

    macOS 10.15.7

    Installed and ran normally. My crashing programs now spring back to life! Where do I find info on how to use this 'Crash Reporter' ?
  22. If you have the Vdd of the sensors wired to the...

    If you have the Vdd of the sensors wired to the Teensy 3.3Vpin then you shouldn't use the 4.7k pullup. That is only for the 'parasitic' power mode which also requires a FET if more than 1 sensor on...
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    Got closer to finding issue at #45. Was not SD.h...

    Got closer to finding issue at #45. Was not SD.h but narrowed down to a function flexRamInfo2() that I got from somewhere.


    #if defined(ARDUINO_TEENSY40)
    static const unsigned DTCM_START =...
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    Having a new issue with 1.8.15 w beta9 on Teensy...

    Having a new issue with 1.8.15 w beta9 on Teensy 4.0. Seems like all programs that use SD.h cause the serial monitor to go away along with Teensy freeze. Tried about 5 examples that run on 1.8.13...
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    No, also interestingly copying for this reply a...

    No, also interestingly copying for this reply a select all misses the last character but all text except the return is actually in copy buffer:
    24838


    first line
    ...


    yes
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    My previously buggy code...

    My previously buggy code https://forum.pjrc.com/threads/66869-T4-0-ILI9341_t3-DemoSauce-WavFilePlayer-mashup-causes-crashes is still buggy, maybe less so. The graphics may have a little less...
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    macOS 10.15.7 Installed and ran normally. No...

    macOS 10.15.7

    Installed and ran normally. No issues like @ryanrs. Wonder which version he installed? Will try some of my buggy code that's had issues in past.
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    I've had great luck with this switcher:...

    I've had great luck with this switcher:
    https://www.digikey.com/en/products/detail/recom-power/R-78E5-0-0-5/2834904
    $2.92 + 3 tiny caps and an inductor. I'm using on a portable device so...
  29. Just ran again with the display_FFT(xxx) lines...

    Just ran again with the display_FFT(xxx) lines commented out and got the same number 45 for the gfft(4096) and a even higher 353 for the audio library fft.

    Just realized I posted the wrong graph. ...
  30. The gfft are your AudioAnalyzeFFT objects with...

    The gfft are your AudioAnalyzeFFT objects with the size appended.
    Added globals and a few additions to the main loop:




    int fft_count;
    bool is_gfft=true;

    void loop(void) {
  31. Mark, nice work, thanks I added to your code a...

    Mark, nice work, thanks
    I added to your code a little and messaged to the 320 by 240 display Paul sells.
    I'm trying to understand why the gfft's/second seem to top out at 150MHz cpu while the...
  32. thanks defragster Tried messing with two 3.6s. ...

    thanks defragster
    Tried messing with two 3.6s. Then both have the issue!
    then
    For some reason loading the example 'AnalogReadSerial.ino' and switching between type serial and MTP serial and...
  33. Since I played with this and setting type 'USB...

    Since I played with this and setting type 'USB MTP...' on my T3.6 now whenever I plug the T3.6 into my mac the photo application opens. Not sure how to break the association on the mac. If I change...
  34. Forgot to mention, you don't need to be attached...

    Forgot to mention, you don't need to be attached to a display to see the problem, although it's not very interesting. You can hear the music in headphones. It will crash when it gets to twistyText...
  35. T4.0 ILI9341_t3. DemoSauce WavFilePlayer mashup causes crashes

    As title suggests playing wave files while displaying DemoSauce causes a crash when the '_twistyText' animation runs.
    On Mac, I'm using Arduino 1.8.13, TL1.54-beta7 with PJRC T4, 320x240 display and...
  36. @mamdos, Thanks, wondered what passive meant.

    @mamdos,
    Thanks, wondered what passive meant.
  37. Thanks for finding this, very interesting. I use...

    Thanks for finding this, very interesting. I use a Netgear GS305P POE that I'm always connecting and disconnecting test equipment, rPi and computers to, as if it was a regular ethernet connection. ...
  38. I have many Teensy's running on both USB and VIN...

    I have many Teensy's running on both USB and VIN with the jumper not cut. Measured current differences have been between 1 to 3mA typ. This is done measuring the USB current
    and noting the change...
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    Once again Paul YOU ARE THE MAN ! Been...

    Once again Paul YOU ARE THE MAN ! Been following this thread for a while and have been amazed at your patience and perseverance. The documentation with the buttons sets a new high bar. That made...
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    Installed on macOS Catalina 10.15.7 My older...

    Installed on macOS Catalina 10.15.7
    My older programs compiled and seem to run well. Get this new warning:

    n file included from...
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    Installed on macOS Catalina 10.15.7 No new...

    Installed on macOS Catalina 10.15.7

    No new issues so far. Haven't looked at any of the new features but all old stuff seems to work.
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    Last line of my post above is incorrect. The T4...

    Last line of my post above is incorrect. The T4 and T4.1 already have the external crystal. Data sheet Table 4.1.6 suggests 20uA. Not sure why I see 30.
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    KiCad for sure. If your a linux user most of the...

    KiCad for sure.
    If your a linux user most of the ease of use issues that Mac and Winoz users complain about will be upgrades for you ;)

    The worst thing about KiCAD is managing the libraries where...
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    Beware! T4x RTC power consumption

    Thought I was getting defective CR1220 button cell battery's. However, measuring RTC currents:
    T3.2 1.24uA
    T4.0 30uA

    Doesn't seem like much but with a 35mAH, 20mm dia. coin cell battery...
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    Might be better to change the addresses I don't...

    Might be better to change the addresses I don't know.
    Otherwise:
    In your sketch above change something like:
    change MPU6050 to Adafruit_MPU6050 everywhere
    accelgyro1.initialize(); to...
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    Don't think the MPU6050 library is setup to...

    Don't think the MPU6050 library is setup to handle anything but wire.
    Rather than rewrite the library Iv'e delt with this by putting: #define Wire Wire1 into the offending.cpp library and put that...
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    @JotaEfe13 Not sure if you have the display...

    @JotaEfe13
    Not sure if you have the display hooked up when your having this problem. I see a 'ILI9341_t3 tft = ILI9341_t3(T...'
    If the display is hooked up then you must do 'tft.begin();' in...
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    Haven't tried those particular displays, but have...

    Haven't tried those particular displays, but have had similar startup issues with others using serial data and long wires. The solution was to add a delay(100) before the lcd.init().

    The print...
  49. Curious, 4MHz is the default for SPI if you don't...

    Curious, 4MHz is the default for SPI if you don't specify it. This could be one of those who's called last mentioned.
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    Search for onewire in the library manager. It...

    Search for onewire in the library manager. It works the same as with any micro.
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