different power consumption between EVAl and FWLIB code?

hg_chen · ‎2008-06-05

Posted on June 06, 2008 at 05:41

hg_chen · ‎2011-05-17

Posted on May 17, 2011 at 12:35

using STM3210B-EVAL

with the EVAL code enter stop mode,

measured power consumption around 14 uA,

but using the enter stop mode code in firmware library,

the power consumption is around 600 uA!!

anyone knows the difference?

any suggestion when power consumption is not low enough as expected?

16-32micros · ‎2011-05-17

Posted on May 17, 2011 at 12:35

Hi hg_chen,

The difference is mainly due to the parasatic leakage in the I/O and so the GPIOs should be configured to either Analog Inputs ( AIN) or as Outputs ( Push-pull) and writing 0 to the Data register to maintain a static level. You can refer as well to Low power Application Note code as well for more details !

Regards, ST1.

hg-chen · ‎2011-05-17

Posted on May 17, 2011 at 12:35

Is it possible the power consumption is different for different package?

LQFP64 and LQFP100 are different?