visualSound
Well-known member
teensy 3.1, windows 8, and "unknown USB Device (Device descriptor request failed)"
Hey everone, I've had my arduino ide setup and working for quite some time now doing things with teensy, and other arduino platforms.
Recently today i got the error: "unknown USB Device (Device descriptor request failed)"
Not sure what to make of it, and unable to program the teensy anymore (the instant I plugged it in, it would run just a fraction of a second of whatever code was already present, then freeze)
I'm running external power, and the usb pad has been cut on a couple of the teensys I'm experiencing this with.. (it's been working for a while just fine)
I managed to get connected with another computer, re upload the same code, then I moved back over to my laptop, and got connected again strangely(com ports recognized, no strange errors, etc).
Now the teensy will run it's code when I upload it, but as soon as I unplug power and reconnect it freezes at the start of the program again.
(i'm running led's, so i'm seeing the first few frames then a freeze.)
Any thoughts much appreciated! I'll report back with what i find on my own if I resolve this!
Hey everone, I've had my arduino ide setup and working for quite some time now doing things with teensy, and other arduino platforms.
Recently today i got the error: "unknown USB Device (Device descriptor request failed)"
Not sure what to make of it, and unable to program the teensy anymore (the instant I plugged it in, it would run just a fraction of a second of whatever code was already present, then freeze)
I'm running external power, and the usb pad has been cut on a couple of the teensys I'm experiencing this with.. (it's been working for a while just fine)
I managed to get connected with another computer, re upload the same code, then I moved back over to my laptop, and got connected again strangely(com ports recognized, no strange errors, etc).
Now the teensy will run it's code when I upload it, but as soon as I unplug power and reconnect it freezes at the start of the program again.
(i'm running led's, so i'm seeing the first few frames then a freeze.)
Any thoughts much appreciated! I'll report back with what i find on my own if I resolve this!