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Thread: Teensy 4.0 command line loader

  1. #1
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    Teensy 4.0 command line loader

    This is more of a linux question wrt. the Teensy command line loader. Using the 4.0, and we've recompiled to loader for a Tordex Colibri environment. Had it working great for 3.2. Now, getting this...
    root@[111902180103]:~#teensy_loader_cli -mmcu=TEENSY40 -s -v -w Blink.ino.hex
    Teensy Loader, Command Line, Version 2.1
    Read "Blink.ino.hex": 13364 bytes, 0.7% usage
    Unable to soft reboot with USB error: Success
    Waiting for Teensy device...
    (hint: press the reset button)
    // Must hit the reset button
    Found HalfKay Bootloader
    Read "Blink.ino.hex": 13364 bytes, 0.7% usage
    Programming...........
    Booting



    The active code in 49-teensy.rules looks like this:
    ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789B]?", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID_MM_PORT_IGNORE}="1"
    ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789A]?", ENV{MTP_NO_PROBE}="1"
    SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789ABCD]?", MODE:="0666", SYMLINK+="teensy%n"
    KERNEL=="ttyACM*", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789B]?", MODE:="0666", SYMLINK+="teensy%n"


    lsusb produces:
    Bus 002 Device 004: ID 05a3:9310 ARC International
    Bus 002 Device 006: ID 16c0:0483 Van Ooijen Technische Informatica Teensyduino Serial
    Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 003: ID 1bc7:0036 Telit Wireless Solutions
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

    I poked around here https://www.pjrc.com/teensy/check_halfkay_linux.html
    and here https://www.pjrc.com/teensy/loader_cli.html

    and am surely missing something. Please, any ideas? Things to check?
    Thank You,
    John

  2. #2
    Senior Member PaulStoffregen's Avatar
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    I don't understand the question. Everything you've described looks like it's working properly.

  3. #3
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    Sorry Paul, That's what's got me. I'm not sure where the problem is, all looks good. Right up till the loader stops and asks you to hit the Teensy button.
    I guess I need to dig into just what 49-teensy.rules does and go from there. Get out the linux bible.
    Thanks, and keep going. These T4.0's are great, and I'm looking forward to playing with a 4.1 before too long!
    Regaards,
    John

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