Example MPC5646C Standby Wakeup To SRAM

Document created by Petr Stancik Employee on Jul 17, 2014Last modified by Diana Torres on Feb 24, 2017
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This example enters the MCU into STANDBY0 low power mode and wakes up to backup SRAM.

The WKPU6 (PE[0]pin) is used to wake up the MCU.

 

Regards,

Petr

 

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* Detailed Description:

*

* On the EVB use KEY2 to enter Standby.

* Use KEY1 to wake up from Standby to a code in backup SRAM.

*

* In RUN mode the LED1 blinks very fast, second core toggels LED3

* In STANDBY all LEDs are off.

* The wakeup code blinks LED1 and LED2 slowly.

*

* The macro WKP_CORE is used to select which core is used after MCU wakes up.

* When z4 core is selected, it is also necessary to set the MMU otherwise exception

* is generated when uncovered memory area is accessed.

* This is not needed for z0 core due to lack of the MMU. 

*

*

* ------------------------------------------------------------------------------

* Test HW:  XPC56xxMB2 + XPC564xB/C, SPC5646C 0N32E silicon

* Target :  internal_FLASH

* Fsys:     120 MHz PLL0

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