Hi Vijay,
> I am bit new to this field and my query here is understandably a
> bit vague. I am particularly interested in how any of you, who have had
> experience with uBoot and a JTAG debugger (like a Lauterbach), have gone
> about tackling and resolving an issue within uBoot.
>
> Specifically, I would really appreciate if you could describe the
> *problem*encountered within uBoot, and how did the JTAG/Trace32
> debugging help you
> resolve the issue.
Having a BDI at my disposal, I tackle most of U-Boot related problems
with it. But of course a JTAG debugger is indispensible when doing a
fresh board port for a "traditionally booting"[1] system. Usually for
such a cycle the JTAG NOR flash capability is used to program the
development U-Boot and debug it. This continues until U-Boot is able to
flash itself. From then on it depends on personal taste whether to use
it to debug easier (e.g. driver) problems.
Cheers
Detlev
[1] Out of reset the CPU starts executing instructions from NOR flash
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