Hello.
I have split your second post off from the topic it was originally posted in because AVRDUDE and Atmel Studio have nothing to do with the Wixel.
What Pololu products are you using? Do you have a 3pi or Orangutan robot controller? Do you have a Pololu USB AVR Programmer?
What do you mean by “using avrdude from Atmel studio”? As far as I know, there is no integration between those two tools, besides the fact that they both and operate on HEX files.
–David