DEBUGGING general question
 

Hi all

I want to understand how debugging of linux based target
is done .

I guess that ICE and ICD are not relevant so how is it done ?

Elico

Member response
 

Hi,

Things really depend on the users level of expertize and tools available. Not everyone will have access to ICE/ICD. In earlier times, most system debug or diagnosis was done by break pointing and scope. Sometimes if one was lucky enough then a good latching port for single stepping through while looking at the data states. Trapping and single step are still a good techniques. Analog and digital circuits require one to understand theory with good practical understanding for the application. The world is analog! So we must marry digital in a practical sense.

Bread-boarding and prototype circuitry is a good means to prove your circuit design with limits. One of the gains to have access to ICE/ICD. Advent of specialized chip subsystems provides a means to design or glue a circuit much easier than days of old when we would kludge the subsystems for a circuit.

As to Linux, just another kernel that can handle the needs for a system designer without the restraints of binding/restrictive license. Look at Linux Kernel Interactive Map to get a feel for how the kernel subsystems function or interact. You can then appreciate having a open understanding of how to interface with the Linux Kernel. Anatomy of the Linux kernel - IBM is a good paper to read. Be sure to look at the Resources links. Enough reading to keep you busy for a while. :)

Thanks
Elico