TMS320F28069: fastRTS library

Jordan Zhou

Genius 9790 points

Part Number: TMS320F28069

Hi,

Just one doubt about the difference between fastRTS and normal RTS library.

fastRTS is faster than the normal RTS. How to accomplish? Is there any precision losing in fastRTS?

Thanks a lot.

Br, Jordan

over 8 years ago

0 Vishal_Coelho over 8 years ago

TI__Mastermind 20850 points

Hi Jordan,

the FastRTS is less accurate than the standard RTS, but faster. A lot of the algorithms are implemented with lookup tables, and no exception checking (e.g. a/b, b==0?)

0 Jordan Zhou over 8 years ago in reply to Vishal_Coelho

TI__Genius 9790 points

Vishal
Do we have any data for the accuracy?
Br, Jordan

0 Vishal_Coelho over 8 years ago in reply to Jordan Zhou

TI__Mastermind 20850 points

Jordan,

We don't have that data but for the trigonometric functions you get withing ~1e-6 of the double precision value (calculated in MATLAB), the error in the exponential function depends on the argument but for small values its about the same, i.e. within 1e-6.

0 Jordan Zhou over 8 years ago in reply to Vishal_Coelho

TI__Genius 9790 points

Thanks a lot.

Br, Jordan

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TMS320F28069: fastRTS library