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CCS/TM4C123GH6PM: When using tivaware, what is the difference between ROM_functioncall, MAP_functioncall, and functioncall

can altineller
Expert 1470 points
Part Number: TM4C123GH6PM

Tool/software: Code Composer Studio

Hello,

What is the difference between ROM_ and MAP_ and just a function call?

Can we use these inter-exhangebly?

Best regards,

C.

  • 0
    TI__Guru 72500 points
    If an error is found in one of the routines that was coded in the ROM, it is deprecated in the next version of TivaWare. The linker will not find the "ROM_" version of that function defined. However, the fixed version of that function will be available in the library without any prefix. Header files define the "MAP_" version of the functions to use the "ROM_" version if it is still valid, or the version without a prefix from the library if the "ROM_" version has been deprecated.

    So the real difference is if you want to get an error when you build with a new version of TivaWare and were using a ROM based function that has been deprecated. Use "ROM_" if you want to get error notifications. If you use "MAP_" instead, the linker will just use the library version of the new function without generating an error.

    They can be used interchangeably.
  • 0 in reply to Bob Crosby
    Expert 1470 points
    thank you for your illustrious answer.