Programowanie attiny85 przez USBasp


Przy próbie zaprogramowania mikrokontrolera attiny85, po skompilowaniu programu,
wyświetla błąd:


avrdude: auto set sck period (because given equals null)
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: error: program enable: target doesn't answer. 1 
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

avrdude done.  Thank you

Proszę o pomoc.

Check the wiring if there is an error.

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