LPC 804 deep power down wakeup is not working

[RDGC_member]

We need to use the deep power down mode in our product. 

we are successful to put the uc in deep power down mode , also initialized pin PIO0_11 for wake up from deep power down mode .but uc is not waking up. what may be the reason for it .

Regards,

[ZhangJennie]

Hi RDGC_member 

Please note for Deep power-down mode, All clocks, the core, and all peripherals are powered down. Only the WAKEUP pins are powered. All functional pins are tri-stated in deep power-down mode except for the WAKEUP pin.

Please use WAKEUP pin wake up LPC804 from deep power down mode.

There is power_mode_switch_lpc demo code under MCUXpresso SDK folder, I suggest you referring it for the low power usage.

Thanks

Jun Zhang