On Mon, Apr 18, 2011 at 21:06, Joerg Wunsch <[email protected]> wrote:

> 0xAC is "RSP_DEBUGWIRE_SYNC_FAILED".  Kind of surprsing since
> apparently, AVRDUDE can at least talk some debugWIRE with your device.
>

I did use avrdude to program the DWEN fuse and did nothing else (except
resetting the dragon) before runnig avarice. This message would indicate dW
communication can not be established.
I'd appreciate to get explicit error messages with avarice...


> Is your /RESET pin going straight to the ISP cable and nothing else?
>
Yes, nothing on /RESET except the ISP header.


> Do you have not more than ~ 10 cm of ISP cabling?
>
My cable is 20cm long (the cable came with the AVRISP).


> You could try attaching a pullup resistor of 4.7 kΩ or 10 kΩ to
> /RESET, this sometimes improves the debugWIRE communication
> reliability a bit.
>

I'll try.

Thanks,  Markus
-- 
*Markus Baertschi*, Bas du Rossé 16, CH-1163, Etoy, Switzerland
[email protected], ++41 (79) 402 1186 (mobile)
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