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NXP Semiconductors
Forum How to Add the protection to internal Flash ??
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Related

How to Add the protection to internal Flash ??

bluesea
bluesea over 16 years ago

Hello,

We use the MC908GT16 for 3 years. Currently, we find the internal flash to be changed. The program can not run correctly. Originally, we dont add the protection to the internal Flash. We want to know:

1. How to add protection to the entire Flash?

2. If protection , We can read the program of Flash? How to read?

3. If protection, the Flash can be re-program ?image

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  • Former Member
    Former Member over 16 years ago

    Hi Bluesea,

     

    What you want can be achieved by using Flash block protection.

    you may see product manual. Maybe look at the GT16A manual for a better description.

    You just programme NVPROT with the appropriate value and that's it. 

    This only provides protection from internal access.

    When you connect via a BDM adapter the software will un-protect the flash so it may be then modified.

    Note that this un-protecting can only be done through the BDM.

     

    If still not clear on this perhaps you can narrow down your area of concern.

     

    hope above help you.

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