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Compiler/TM4C123GH6PM: Using Kiss FFT: Error

Jim Carucci
Prodigy 240 points

Part Number: TM4C123GH6PM

Tool/software: TI C/C++ Compiler

Hi All,

I went looking for a simple FFT algorithm (my application isn't particularly rigorous when it comes to either memory or latency) and I found Kiss FFT as well as the code found here: 

As a test, I tried just literally copying and pasting the code on the attached link. The weird part is that it compiles perfectly but when I try to run in debug, all hell breaks loose and starts throwing exceptions and eventually aborts.

Has anyone tried to use Kiss FFT and if so did they have any success? Any idea what the problem might be? I'm just learning that TI has an fft library that I may try...

  • 0
    Guru 117855 points

    Seeing "KISS" excited me - "Jim - down our throats" (every post) - NOT so much...

    To your issue - can you present the most dominant exceptions, warnings (ideally Errors) so that those here have (some) clue.

  • 0 in reply to cb1_mobile
    Prodigy 240 points

    You're not a fan of the Doors? I feel sorry for you. Thanks for the reply.

    As soon as I get to the line "float buf[size]" and try to "step into" in CCS I go through a series of lines of code that are trying to allocate memory for the buffer but eventually get to:

    Then...

    And eventually here...

    I thought perhaps it was having trouble with float so I changed it to an int but got the same result. I'd appreciate any suggestions.

    Cheers,

    Jim

  • 0 in reply to Jim Carucci
    Guru 10570 points
    malloc returned 0. You ran out of heap (allocatable memory)

    Robert