VS Arduino - Arduino UNO with HW Atmel ICE debugger do not start

Jun 8^th, 2025 at 3:14am (UTC)

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VS Arduino › › › Arduino UNO with HW Atmel ICE debugger do not start

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Arduino UNO with HW Atmel ICE debugger do not start (Read 14531 times)

Simon@Visual Micro Administrator Offline Posts: 2710 Joined: Feb 13^th, 2019	Re: Arduino UNO with HW Atmel ICE debugger do not start Reply #40 - May 28^th, 2021 at 12:14pm	Print Post
	Please follow the instructions on the Atmel Site about how to unbrick your device: https://microchipdeveloper.com/boards:debugbrick#toc4 This will allow the DWEN bit to be unset correctly, using a standard Atmel Studio project. Would you also be able to confirm how you created the Arduino project you are using in Atmel Studio?


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Marco (Italy) Full Member Offline Posts: 190 Joined: Jul 12^th, 2019	Re: Arduino UNO with HW Atmel ICE debugger do not start Reply #41 - May 28^th, 2021 at 1:52pm	Print Post
	Hi! Following your indication I was able to UNSET the DWEN bit. I have open a new VM project using AS7. rebuild : OK upload using VM:ok bebug/Start debugging and Break: ok (no error.....) But, the debug do not work, is not possible to do the step command or watch a variable and don't stop on breakpoints.

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Simon@Visual Micro Administrator Offline Posts: 2710 Joined: Feb 13^th, 2019	Re: Arduino UNO with HW Atmel ICE debugger do not start Reply #42 - May 28^th, 2021 at 2:02pm	Print Post
	You need to ensure you have set the options below, as your screenshot shows "None On" for the Atmel Studio Debugger configuration: vMicro > Debugger > Debug: Off vMicro > Debugger > Atmel Studio Debugger [Enabled] Then select the Atmel ICE probe and debugWIRE Interface on the Project Properties, and press Save. From this point if the code uploaded to the board matches the code on the PC, you should be able to press Debug > Attach to Target (do not press Debug > Start Debugging). NOTE - this should not try to perform a build or an upload at all, simply attach to the running debugger Then it should request to set the DWEN Bit again, power cycle, after which the session should launch successfully. To disable DWEN for reprogramming there will be an enabled Option, Debug > Disable DebugWIRE and Close, which will reset the DWEN Bit and allow the board to be reprogrammed again.
	« Last Edit: May 28^th, 2021 at 2:10pm by Simon@Visual Micro »

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Marco (Italy) Full Member Offline Posts: 190 Joined: Jul 12^th, 2019	Re: Arduino UNO with HW Atmel ICE debugger do not start Reply #43 - May 28^th, 2021 at 2:21pm	Print Post
	I've tried but it doesn't work, it never goes into debug. I give up, I'm going back to serial debugging with arduino UNO directly in the VM. Although I had tried and still had problems with serial too. I will only use the atmel ICE to load the Arduino UNO bootloader into new chips (if I can find them, it seems that silicon has become very rare). Thanks


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Simon@Visual Micro Administrator Offline Posts: 2710 Joined: Feb 13^th, 2019	Re: Arduino UNO with HW Atmel ICE debugger do not start Reply #44 - May 28^th, 2021 at 2:46pm	Print Post
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