avrdude wont see a programer


avrdude wont see a programer
« on: Today at 09:58:36 am »

i am trying to put a bootloader on a paperduino attiny 85 with avrdude ,but when i connect an avrisp2 or bus pirate it doesnt see them and give timeouts or just hangs . the ports show them as ok but avrdude doesnt.
any ideas what it can be ??? i just use the code to check them as connected to avrdude