VS Arduino - Interactive Watch

May 12^th, 2025 at 3:26am (UTC)

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VS Arduino › › › Interactive Watch

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Interactive Watch (Read 3324 times)

Herbert M Newbies Offline Posts: 1 Joined: Jan 30^th, 2013	Interactive Watch Feb 18^th, 2013 at 10:44am	Print Post
	The only way I found to watch variables is specifying them in breakpoints. This is very laborious for me, particularly if some variables have to be watched at different breakpoints when deeply investigating a program.� It would be very helpful to be able to specify watches separately from the breakpoints. As far as I understand the working principle of the debugger, it should be even possible to interactively watch variables when halting at a breakpoint without recompiling and reloading: The PC software sends commands to a �C resident driver that returns the contents of� the required RAM positions of the variables.
	« Last Edit: Feb 18^th, 2013 at 10:45am by Herbert M »

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Tim@Visual Micro Administrator Offline Posts: 12187 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Interactive Watch Reply #1 - Feb 20^th, 2013 at 7:43pm	Print Post
	This might be a good idea if you are saying that the ram positions can be extracted from the elf or hex? Do you have an example of how to do that? Are you suggesting that both global and local variables would be available. One point to keep in mind is that you can enter expressions not just variables. So we would also need both features. However, if there is a way to show you a list of variables on a running arduino and allow you to click the ones you want to watch without re-compile I would be very keen to implement this feature.


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Marius Developer Offline Posts: 204 Location: Centurion RSA Joined: Sep 7^th, 2011	Re: Interactive Watch Reply #2 - Feb 21^st, 2013 at 8:06am	Print Post
	Tim One can have the linker place the variables in an absolute position and I am sure that you can get variable positions from the linker output. A long time ago I did a debugger in hardware that dumped the variables on another port. As far as I can remember I used the linker to locate the variables and then just used the offset from that point to get what I wanted to see. I do think that I had to dump the whole lot but I cannot recall anymore. I think it is possible though.


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