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The Digispark => Digispark Pro Support => Topic started by: balizeiro on May 07, 2017, 08:43:28 am

Title: Problem detecting Digispark Pro after windows restart
Post by: balizeiro on May 07, 2017, 08:43:28 am

I'm using my Digispark Pro to communicate to my C# program trough USB, and everything works fine until I restart my PC, at which time I get an "Unknown USB Device (Device Descriptor Request Failed)", and can't connect to my device unless I manually unplug and plug it back again.

Is this the expected behavior? Is there any way to make this work without reconnecting my Digispark Pro?

Thanks in advance for any help provided.

Title: Re: Problem detecting Digispark Pro after windows restart
Post by: balizeiro on May 10, 2017, 04:04:00 pm

Any ideas anyone?

Title: Re: Problem detecting Digispark Pro after windows restart
Post by: jaskie on August 07, 2017, 07:18:09 am

Hi, I faced exactly same problem. Did you resolved it?
My idea is to reboot digispark if no USB connection is made using a watchdog timer, but I don't know how to detect the connection. A tip is here: http://obruboff.ru/no-detect-usb-tiny-device-after-reboot-problem/ (http://obruboff.ru/no-detect-usb-tiny-device-after-reboot-problem/), but it does not work for me.