MKE15 Stop Mode

[David_94]

Hi,

I'm trying to make the MKE15 enter STOP mode. I found this code on the forum

void stop (void)
{
 /* Set the SLEEPDEEP bit to enable deep sleep mode (STOP) */
 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; 

 /* WFI instruction will start entry into STOP mode */
#ifndef KEIL
        // If not using KEIL's uVision use the standard assembly command
 asm("WFI");
#else
        // If using KEIL's uVision, use the CMSIS intrinsic
 __wfi();
#endif
}

Is it enough?

How do I have to set registers in order that the micro wake up from stop mode if I have an active edge on the UART?

[nxf56274]

Hi,

We have the example about power manage in directory '2.9.0_FRDM-KE15Z\boards\frdmke15z\demo_apps\power_mode_switch'.

Have a great day,
TIC

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[mjbcswitzerland]

Hi

STOP mode is controlled by the Cortex core so doesn't need any more registers configured (the various low leakage modes require additional setup).

STOP mode will exit whenever there is a pending interrupt so any peripheral (whose clock is not stopped in STOP mode) configured with an interrupt is adequate.

The asynchronous UART rx edge wake up is not needed in STOP mode - it is only needed in VLPS.

Regards

Mark
[uTasker project developer for Kinetis and i.MX RT]
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