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Type: Posts; User: russell

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    Right now, the same teensy is sending on one of...

    Right now, the same teensy is sending on one of its serial ports, receiving the data on another of its serial ports and echoing it back. Both serial ports are configured as 7E1. I need 7-bit data to...
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    Trouble with Teensy 3.1 and SERIAL_7E1

    I am working on a project where I'm reading input from a ps2 keyboard, converting keycodes to ASCII (using the Ps2KeyboardHost library of Steve Benz, which I don't think is related), with the...
  3. Awesome. I'm mostly on my way. I'm currently...

    Awesome. I'm mostly on my way. I'm currently thinking about how to deal with the combined rx/tx line. I'm thinking about running the transmit through a open-collector transistor arrangement, to pull...
  4. 9-bit UART with non-standard baud on a teensy 3.5?

    Hi,

    I'm working on a project to man-in-the-middle a half-duplex serial bus (where tx and rx share a wire) between some Intel 8031 microcontrollers in an old IBM wheelwriter typewriter. Generally,...
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    Understood. If I learn anything else, i'll post...

    Understood. If I learn anything else, i'll post it here, for that indefinite future time when it might be useful.
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    I tried resetting my (nfs-mounted)...

    I tried resetting my (nfs-mounted) $HOMEDIR/.arduino/preferences.txt, but that did not help,same error.
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    I just created a new installation on local media...

    I just created a new installation on local media on one of the problematic desktop boxes and tried with a local vs an nfs-mounted homedir. Local works, nfs-mounted doesn't. I have the dueling...
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    It looks writable: root@moro:~# ls -al...

    It looks writable:


    root@moro:~# ls -al /dev/ttyACM*
    crw-rw-rw- 1 root dialout 166, 0 Dec 24 17:56 /dev/ttyACM0
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    I think so, they were installed in exactly the...

    I think so, they were installed in exactly the same way on my laptop (working) vs two desktops w/ nfs-mounted homedir (not working).


    russell@rice:~$ ls -al /etc/udev/rules.d/
    total 20...
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    After clicking upload, I tried power cycling the...

    After clicking upload, I tried power cycling the teensy by unplugging/replugging the USB from the linux box. Upon replugging, it ran the old program, not the new one. The strace is leading me to...
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    I tried on a laptop (same linux distribution,...

    I tried on a laptop (same linux distribution, Gnome Ubuntu 14.04, 64-bit), without an NFS mounted homedir, and the problem does not occur. Looking at strace, the problem seems to be in the Teensy...
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    trouble with teensy loader on ubuntu 14.04

    This is probably a dumb mistake on my part, but I'm having trouble with the Teensy Loader via teensyduino. I just installed a fresh 64-bit binary Arduino 1.0.6, with teensyduino.64bit on top, and...
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