[U-Boot] Debugging uBoot with JTAG/Trace32 ?

Hello,

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.

Thanks,

Vijay