Hi. I am using MPC5644A.
and I want to know How long take it to reach "main" function ( Time to execute startup codes )
the time to reach main function is software dependent. It is directly proportional to the length of the startup code and also frequency. If you look at the e200z4 core reference manual, you can find there, how long does it take to execute each instruction.
With this knowledge, you are able to calculate the time of the startup.
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