K82 : wakeup from LLS3 mode

EugeneHiihtaja — Wed, 05 Dec 2018 08:29:24 GMT

Hello !

When MCU wake up from LLS3 mode , some LLWU interrupts should be cleaned as it mentioned in example.

But what about waiting some time for clock stabilisation ?

power_user_config_t targetConfig;
targetConfig.enableLpoClock = true;
targetConfig.mode = kAPP_PowerModeLls;
PM_PowerModeSwitch(&targetConfig, NULL);
//
// ... LLS3 ....
//
// Wakeup -> continue execution
//
// LLS3 –> RUN — 6.3 μs, see specification for exact clocks and etc.
//

/* Wait for PLL lock. MCG in PEE mode in RUN. */
while (!(kMCG_Pll0LockFlag & CLOCK_GetStatusFlags()))
{
}
CLOCK_SetPeeMode();

/* Power mode change. */
SMC_SetPowerModeRun(SMC); // No need ?
while (kSMC_PowerStateRun != SMC_GetPowerModeState(SMC))
{
}

Does this red color part is right one ?

Regards,

Eugene

Re: K82 : wakeup from LLS3 mode

jingpan — Thu, 06 Dec 2018 07:50:23 GMT

Hi Eugene,

If previous mode is VLPR and you want going to RUN mode, you should call this function. Otherwise, this function have no impact to system.

Regards,

Jing

topic K82 : wakeup from LLS3 mode in Kinetis Microcontrollers

K82 : wakeup from LLS3 mode

Re: K82 : wakeup from LLS3 mode