SparkFun Forums

[emilevictor]

I am trying to get Sparkfun's Pocket ISP programmer working on my 32bit Windows 7 machine. I have installed the required device drivers, and it is visible in my device manager:


Now, when I run avrdude in command prompt with the following command:

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avrdude -c usbtiny -B 1 -p m328p -U flash:w:main.hex

It responds with:

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avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override this check.

avrdude done. Thank you.

So, what am I doing wrong? Can someone help?

[frank26080115]

usually that error means the chip you are programming is not responding, and the programmer is working fine

[emilevictor]

usually that error means the chip you are programming is not responding, and the programmer is working fine

Could it possibly mean I have the wrong bootloader on it? Or is it a bad connection through the ISP header?

[leon_heller]

Nothing to do with a bootloader. Poor connections are most likely.