# Pastebin yfvj6RuT avrdude -p t25 -c usbasp -n avrdude.exe: warning: cannot set sck period. please check for usbasp firmware update. avrdude.exe: error: programm enable: target doesn't answer. 1 avrdude.exe: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check. avrdude.exe done. Thank you.