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TMS320F28375D: .cinit Memory Allocation for Large Arrays

Ozgur Gulsuna
Prodigy 10 points
Part Number: TMS320F28375D

Hi everyone,

I am trying to save my current values in a large (0x004000 sized) array in global shared RAM of f28375d. I set up a variable then located it in RAMGS-1-2  when I try to build it gives an error saying that;

the program will not fit into .cinit memory location due being too large.

I can not make this array a constant one and I assume it should be initialized with a set of values from the .cinit location.

The current solution that I come up with is allocating more empty memory to .cinit that is enough to fit my whole array but then that memory is useless later on.

Is there a way to initialize this array with zeros in a way that no extra memory is needed for .cinit ?

  • 0
    Prodigy 10 points

    Initializing the array such that;

    #pragma DATA_SECTION(Current1ReadValues,"CURRENT_1_READ_LOCATION")
    uint16_t Current1ReadValues[8192] = {0};

    instead of


    uint16_t Current1ReadValues[8192] = {0,0,0,0,........,0,0,0,0};

    solved my problem, --zero-init=on and --cinit-compression did no effect.