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From: | Ewout Boks |
Subject: | Re: [avr-chat] problems with avrdude and new AVR Studio 4.11 |
Date: | Mon, 14 Mar 2005 15:46:12 +0100 |
User-agent: | Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.3) Gecko/20041110 |
Thanks, I thought it would be something like this.I'll inform Atmel of this problem so they will not confuse the next person asking....
Ewout E. Weddington wrote:
Ewout Boks wrote:Hi everyone, I am having trouble with the new AVR Studio 4.11 . I recently installed it and use it as a back-up to easily program fuses etc on my ATMega32 and 64. For everyday programming and target loading to the stk500, I use avrdude from my FreeBSD workstation. This worked fine until I installed AVR Studio 4.11 on my Windows system and connected to the target using the JTAG ICE mkII . This works fine but after having doen that, avrdude isn't able to connect to the stk500 anymore. Reverting to AVRStudio 4.10 and reinstalling the stk500 firmware made avrdude happy again.Yes, this is a known issue. Atmel changed their stk500 protocol. When you go to AVR Studio 4.11 and "upgrade" the firmware in your stk500, it no longer works with avrdude. Reinstalling the old stk500 firmware changes the protocol back to the previous version, and then works with avrdude.The avrdude developers are aware of this issue and they have access to the specification of the new protocol. Some work has been done, but AFAIK it is incomplete.Atmel assures me that nothing drastic has changed but from what I see I am not too certain about that.Whoever told you that doesn't know the whole story and their knowledge base needs to be updated. :-)Eric
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