TMS320F28388S: What different between (0.01F) and (float)0.01 on F28388 when --float_support=fpu32?

Zane Wei

Intellectual 1835 points

Part Number: TMS320F28388S

Tool/software:

Hi Team,

What different between (0.01F) and (float)0.01 on F28388 when --float_support=fpu32?

My customer said when use (0.01F) in code, the complier will consider it as double, the calculation will slow down.

Best Regards,

Zane

5 months ago

0 Sira Rao80 5 months ago

TI__Mastermind 26875 points

Zane,

Using 0.01F will cause the floating-point constant to be interpreted as a single-precision constant, so the calculation will NOT slow down with FPU32.

Thanks,

Sira

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388S: What different between (0.01F) and (float)0.01 on F28388 when --float_support=fpu32?