lpcware

LPC1227 current consumption problem

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by patel24gic on Wed Mar 19 21:56:16 MST 2014
Hi every body

I am tring to use  Deep Sleep mode for  LPC1227 controler to reduce current consumption , i did it as describbe in UM10441

but current consumtion is still 10 ma.

see code :

void DeepSleep(void)
{
/*
* Save for when we wakeup
*/
LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
/*
* BOD and WD Osc. disabled
*/
LPC_SYSCON->PDSLEEPCFG = 0x0000FFFF;
/*
* Deep Sleep Mode
*/
SCB->SCR |= 0x04;
/*
* set up the Power Management Unit
*
* Deep power down mode is DISABLED i.e. Deep Sleep will be entered
*/
LPC_PMU->PCON &= ~(1 << 1);
/* And so to sleep zzzzzzzzzzzz */
__WFI();
}

and also find my circuit if required ,I removed all of the component from ckt except battery ckt, & tact switch wit pull-up registers

but still controller is consummin 10 ma current.

please help me.

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