Yes, there is a function to exit dW while in debugWire mode. However, I do not think that Atmel has shared the dW protocol, nor do I know how to talk dW on the Dragon thru a Linux tool.
Jeff Keyzer [email protected] On Apr 16, 2011, at 1:05 PM, Markus Baertschi wrote: > > I happen to have a dragon. But you can get out of dW mode without HV > programming. If you debug with Studio this supposedly works fine. But I want > to use the linux tools, so I'm looking to replicate the same. Avrdude can use > dw, there is a switch for it. But using this switch in my setup does not work > and I'm looking to fix that. > > Markus > > On Sat, Apr 16, 2011 at 20:02, Jeff Keyzer <[email protected]> wrote: > Markus, > > Hah, ouch! =] > > ISP mode is disabled while in debugWIRE (I suspect this is due to RESET pin > being reallocated). > > The way I have used to get out of dW is to use HVPP or HVSP mode (depending > on the device). That's what my shield does. You can also use the Dragon for > this, but I don't think it can be done with avrdude (unless there is a way > avrdude can invoke HVPP/HVSP mode). I have used AVR Studio for this in the > past. > > Jeff Keyzer > [email protected] > > > > On Apr 16, 2011, at 12:56 PM, Markus Baertschi wrote: > >> >> I do not have an arduino. Do you know something about the problem other than >> a device you want to sell ? >> >> On Sat, Apr 16, 2011 at 19:52, Jeff Keyzer <[email protected]> wrote: >> Shameless self-promotion: if you have an Arduino this shield will let you >> reset the fuses to get out of dW: >> >> >> -- >> Markus Baertschi, Bas du Rossé 16, CH-1163, Etoy, Switzerland >> [email protected], ++41 (79) 402 1186 (mobile) >> > > > > > -- > Markus Baertschi, Bas du Rossé 16, CH-1163, Etoy, Switzerland > [email protected], ++41 (79) 402 1186 (mobile) >
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