Problem with driver??

Clownfish · Post by **Clownfish** » Sat Jan 05, 2008 1:41 pm

regarding AVR Doper..

Yesterday I successful programm AtMega8 with PonyProg serial programmator with code file main.hex

Then I solder AVR to Doper pcb with all other components and now when I connect this device to USB my PC found new USB device and in Device Manager I could see new Unknown device.

Still as I got this message:

as I try to install driver from files (avrdoper.inf) I got new message:

Windows can't found data about your device (translated from our language)

As I try AVR Studio 4.0 program can't found any programmer?

What should I do?

Post by **christian** » Mon Jan 07, 2008 4:24 pm

It looks as if reading the device descriptors failed, since no information whatsoever is given about the device. Since reading the descriptors is the very first thing the host does, this probably means that USB connectivity does not work at all.

Please check the usual things like
- fuse values: Does the AVR run on external crystal clock?
- zener diodes on D+ and D-
- wiring between USB connector, resistors and AVR

zacharius · Post by **zacharius** » Thu Jul 17, 2008 10:02 am

i have exactly same but "unused port" instead "HID compliant" (working in port mode under Vista) any other solutions? because my doper not hand made so i don't suspect electric connections problems. thx