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On Cortex-M4F microcontrollers: is fixed point math faster or floating point?

Pramod Ranade over 4 years ago

Hi,

I am using S32K14x controllers (Coretx-M4F). It has floating point math unit. I need to perform many mathematical operations as fast as possible. Which will be faster: fixed point q16 or fixed point q32 or single precision (32 bit) floating point?

Regards,

Pramod

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0 Pramod Ranade over 4 years ago in reply to Ronan Synnott

Ronan Synnott said:
By mathematical operations do you mean low level operations (MAC etc) or higher level operations (FFT or similar)

Low level operations, to start with. May evaluate higher math functions later (e.g. matrix multiplication)
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0 Pramod Ranade over 4 years ago in reply to Ronan Synnott

Ronan Synnott said:
By mathematical operations do you mean low level operations (MAC etc) or higher level operations (FFT or similar)

Low level operations, to start with. May evaluate higher math functions later (e.g. matrix multiplication)
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