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I'm trying to make the transition from coding in the Arduino language to AVR-C, but I'm having some issues with my microcontrollers.

I don't have an ISP, so I'm using one of my Arduino UNOs with the ArduinoISP sketch. The problem is that when I try to run avrdude it gives me this error:

avrdude: Device signature = 0x000000
avrdude: Yikes!  Invalid device signature.
  Double check connections and try again, or use -F to override
  this check.

However, when I try to run the command with the sugested -F it uploads the code to the Arduino UNO I'm using as an ISP instead of the ATmega328p on my breadboard.

Does anyone have any idea about whats going on here, or how to fix it?

per1234
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Isak
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1 Answers1

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"invalid device signature" is due to bad connection or inability to reset the device (RST pin fuse setting for example).

dannyf
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