I want to program an ATTiny microcontroller using an Arduino Uno board via AVRdude. According to the Arduino Uno schematic, there is a direct line from the USB controller to the ICSP1 header:
I connected the wires from the icsp header (also removed the ATMEGA328P chip) to my breadboard and then to the attiny chip, then ran this command:
$ ./avrdude -p t13 -c arduino -P com3
I also tried
However, there is no response. I'm sure the port is com3, because I can read the ATMEGA328P using com3 on avrdude.
Is there anything else I need to set to be able to program the attiny with avrdude?