Whether or not will the sharc 21489(without operating system)record some useful positioning information before a system Crash reboot , such as lastwords,blackbox etc，
If any,how to obtain this information.
There is no such feature in SHARC processors which can indicate any information pertaining to system Crash.
In order to comment better on the issue, could you please explain what are you trying to do in your application code.
Kindly explain the flow of code, so that we can try to figure out what might be causing your system to crash.
You may even try some trial tests by commenting out some portion of the code and then checking if the crash still exist or not. This way it will become easier for you to isolate the cause of the issue which can be debugged separately.
Please let me know in case you have any further queries/doubts.
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