Go Down

Topic: Solved: Unknown USB Device (Device Descriptor Request Failed) (Read 3550 times) previous topic - next topic

PeterPolacek

Hi, i made board myself like arduino mega2560. When i plug it to pc, the message is Unknown USB Device (Device Descriptor Request Failed). I try instal drivers manualy. I try upload firmware to 16u2 via isp (avrdude), and Flip. It's not working. Avrdude is working but it's still Unknown USB Device and Flip wants driver.

I use this instructions:
http://arduino.cc/en/Hacking/Upgrading16U2Due
http://arduino.cc/en/Hacking/DFUProgramming8U2
https://nicohood.wordpress.com/2014/06/03/install-new-firmwares-with-dfu-and-flip-on-arduino-unomega-r3/
https://learn.sparkfun.com/tutorials/installing-an-arduino-bootloader

Please help me  :(




PeterPolacek

#1
Mar 02, 2015, 05:33 pm Last Edit: Mar 02, 2015, 07:53 pm by PeterPolacek
ok i solve it, i had bad solder capacitor.

esaacm

Hi sorry to bring this back up, but which capacitor was it was bad? I have a similar issue, in which the bootloaders/firmware seems to load successfully as your screen shots display, but my board still shows up with a Device Descriptor Request Failed

thekug


Go Up