cancel
Showing results for 
Search instead for 
Did you mean: 

float lib preformance

rana
Associate II
Posted on December 26, 2007 at 09:04

float lib preformance

1 REPLY 1
rana
Associate II
Posted on December 26, 2007 at 09:04

Hi all.

I have a very strage behavior (VUDU) when I compare 2 MCUS:

- ST10 (64MHz, code IFLASH, data XRAM)

- C167CR (32MHz, code Ext-Flash, data Ext-RAN)

when executing ''float f = tan(3.5);'',

- ST takes ~350 uSec

- C167CR takes ~200 uSec

almost twice...

Please note I'm using in both:

- Tasking v8.6r3

- same libraries

- same options (forcing float, include C Libraries)

Can anyone explain me what I see?

Thanks

Ran