chip id

Unique device ID register (96 bits)
The unique device identifier is ideally suited:

  • for use as serial numbers (for example USB string serial numbers or other end
    applications)
  • for use as security keys in order to increase the security of code in Flash memory while
    using and combining this unique ID with software cryptographic primitives and
    protocols before programming the internal Flash memory
  • to activate secure boot processes, etc.
    The 96-bit unique device identifier provides a reference number which is unique for any
    device and in any context. These bits can never be altered by the user.
    The 96-bit unique device identifier can also be read in single bytes/half-words/words in
    different ways and then be concatenated using a custom algorithm.
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转载自blog.csdn.net/hanjuefu5827/article/details/90476833