the difference between library with FP (softfp) and library with FP (hard) in s32k144

[zhangchun]

hello

I tested library with FP (softfp) and FP instructions(hard) using the attached example.

I found that there is no difference in performance between these two floating-point operations. However, from this document(S32K14x系列MCU使用Tips之硬件FPU特性介绍和使用详解 ), it can be seen that hard uses fpu registers, which should have a more significant improvement in floating-point performance.

Now, I don't quite understand how to use hardware floating-point operations in S32K44

thanks

[Mehul_Patel_NXP]

Hi, @zhangchun , 

Closing this case as it was answered in the other post: 

https://community.nxp.com/t5/S32-Design-Studio/the-difference-between-library-with-FP-softfp-and-lib...

Thank you. Best regards. 

- Mehul Patel