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sajeev
Joined: 29 Apr 2005
Posts: 103
Helped: 2
Location: Kerala-India
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 01 Aug 2008 11:50 Theory of debugging? |
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Hi
I am using MPLab IC2 for debugging pic micros.But I dont know how the debugger works.Can anybody explain me of the working of a debugger? What kind of support that a micro controller should have for debugging?
Regards
Sajeev
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FvM
Joined: 22 Jan 2008
Posts: 5161
Helped: 767
Location: Bochum, Germany
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01 Aug 2008 14:53 Theory of debugging? |
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| Consider one or more hardware breakpoint registers as most important function, anything else can be performed by software. Additionally, some free code memory for the supporting software (the monitor) and a suitable interface between debugger and debuggee ist obviously required.
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sajeev
Joined: 29 Apr 2005
Posts: 103
Helped: 2
Location: Kerala-India
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01 Aug 2008 16:15 Re: Theory of debugging? |
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So you mean extra registers are there to control break point?How the cpu clock is controlled during debugging?
When a break point occurs,then the clock is halted or not?
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FvM
Joined: 22 Jan 2008
Posts: 5161
Helped: 767
Location: Bochum, Germany
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01 Aug 2008 18:57 Re: Theory of debugging? |
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| When a breakpoint interrupt occurs, the monitor programm is entered, but the processor is continuing operation at regular speed. Monitor program is performing I/O in polled mode (no interrupts), so application interrupts are usually halted in break state.
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