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KL03Z32 -- how the ROM boot loader know the user application is valid or not

Question asked by Felix Tsai on Aug 19, 2015
Latest reply on Jan 4, 2016 by Joey Gouly

Hi, I am using KL03Z32 for our project. In Figure 11-2 in the Reference Manual (KL03 Sub-Family Reference Manual, Rev. 4, August, 2014), there is a judgement that "Is user application valid?". I would like to understand how the ROM boot loader know the user application is valid or not. It would be appreciated if someone can share the answer or give me a hint.

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