SLAU132V User guide | 德州仪器 TI.com.cn

SLAU132V October 2004 – February 2020

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4.3.4 Initialization of the FRAM Memory Protection Unit

The linker supports initialization of the FRAM memory protection unit (MPU). The linker uses a boot routine that performs MPU initialization based on the definition of certain symbols. The TI-provided linker command files that are used by default for different devices define the necessary symbols so MPU initialization happens automatically. Code and data sections are automatically given the correct access permissions. If you want to manually adjust how the MPU is initialized you can modify the __mpuseg and __mpusam definitions in the linker command file. The MPU-specific boot routine is used when these two symbols are defined and it sets the value of the MPUSEG and MPUSAM registers based on these values. If you do not want the MPU initialized you can remove these definitions from the linker command file.