Well a bit of a bummer today. Managed to brick one of the speed controllers in my attempt to convert it to brushed. I presume that when I flashed the new .hex file to the chipset, something went wrong so now it doesn't beep or respond to any controller input.

I am not really sure what I did wrong... I downloaded the .hex file for the controller (http://launchpad.net/brushed) and then used the following command to flash it to the speed controller, making sure the pins were matched up:

avrdude.exe -p atmega8 -P usb -c usbasp -U flash:w:tz85a_r40.hex

This seemed to work fine. Any ideas?