Dear David,thank you for your answer to me. Now that EFPU/LSP is always enabled,the question is, why are floating-point operations performed so slowly, unlike using an internal floating-point unit? hope to get your reply again,thank you!
Hello, I am not sure that EFPU/LSP instruction are used because compiler (S32 Design Studio for Architecture) can not configure or observed the relevant register about Floating point unit. I simply made a rough estimate of the execution time of the code and find that MPC5744P do not use the EFPU.