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Type: Posts; User: hudson

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  1. Replies
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    I haven't tested this with 1.43 yet, but it...

    I haven't tested this with 1.43 yet, but it appears that teensy 3.2 hardware with the teensyduino 1.42 and arduino 1.8.5 has a USB buffering issue.


    void setup()
    {
    Serial.begin(9600);
    }
    ...
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    Yes, the example is quite simplified -- I'm using...

    Yes, the example is quite simplified -- I'm using the PWM output to drive a stepper motor and controlling the velocity with the frequency. The occasional short pulses were causing the stepper to...
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    The offending code appears to be in...

    The offending code appears to be in pins_teensy.c:


    } else if (pin == 5 || pin == 6 || pin == 9 || pin == 10 ||
    (pin >= 20 && pin <= 23)) {
    FTM0_SC = 0;
    ...
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    analogWriteFrequency() causes glitches output

    6203
    Is there a way to avoid glitches caused by changing the output frequency with analogWriteFrequency()? It appears to force a reset of the counter when it is called, which causes a transition...
  5. I saw it always with the BeagleBone Black, Xbuntu...

    I saw it always with the BeagleBone Black, Xbuntu on my toughbook for /dev/ttyACM1-4 (but not ACM0?), and also Mountain Lion on my Macbook. With the termios fix everything is better now and our...
  6. This is an easy fix and a frustrating bug. The...

    This is an easy fix and a frustrating bug. The low intensity bit pattern that messes things up included 0xA, also known as a newline character. Disabling OPOST in the termios prevents the tty from...
  7. OctoWS2811 pixel corruption with dim brightness values

    I'm having problems with OctoWS2811 with specific low-intensity bit patterns when we have multiple Teensy3's connected to the same machine. The conditions seem somewhat specific and hard to...
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