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TMS570LS0432: about cpu self-test

Part Number: TMS570LS0432


Hello

Self-test at CPU startup,in sys_startup.c  ,the _c_int00() function.I use the safety library demo

I want to know which function is to check whether the ‘safety’ island is normal?

  • Hi Whong,

    The safety island is a region of logics which is needed for all processing operations. There is no specific function to check all the modules in the island. Tye nERROR pin can be used as an indication of a failure of the critical elements. For example, if there is a CPU fault, there is no trust to the execution of the code and the MCU operation should be considered unpredictable. The indication to the system at that point is the nERROR pin. The same considerations can be made for many of the elements in the RED blocks of the Safety Island.