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Hi,
I am having the same issue.. Using Windows 8.1 and another machine with Windows 7 i keep getting avrdude: stk500_getsync(): not in sync: resp=0x00
I followed all instructions.
I am using Arduino 1.0.5 -r2
i have downloaded the sanguinololu software. When i connect the board to the usb i can see it in the device manager listed as "USB Serial Port (COM4)" and in Arduino i see it. I have selected Sanguinololu 1284p 16mhz board and "Arduino as ISP" programmator but still get the message. I tried hitting the resset button, but no result.
I should mention that when i hit the reset button i get slightly diffetenr resp. Each time it is different, for example resp=0xd5, 0xd1, 0xd7 etc.
Can someone advise me how to proceed?
Ok this is what i've noticed.
First.
Dotn use Arduino 1.0.5. Use 1.0.1. (i've experimented with about 5 different IDE versions 1.0.5 never worked for me... 1.0.1 did though.)
download the software to 1.0.1 just as you did for 1.0.5.
here's where you can download all previous versions of arduino software
[code.google.com]
Second dont select "Arduino as ISP"
If you're connected to your computer directly use "parallel programmer".