Periodly wakeup from deep sleep mode

[Anonymous]

Hi,

   

     I want CPU Cy8C4247LQI periodically wakeup from deep sleep mode, what should I follow?  Or wakeup from Hibernate mode

[Bob_Marlowe]

You can wakeup from DeepSleep mode periodically by using the WDT (WatchDog Timer) and the LFCLK (Low Frequency CLock). When you have got an external signal to wakeup the chip you may connect that to a pin and get woken by an interrupt. There are only few components running in DeepSleep.

       

Bob

[ETRO_SSN583]

These might help -

       

http://www.cypress.com/documentation/application-notes/an86233-psoc-4-low-power-modes-and-power-redu...         AN86233 - PSoC® 4 Low-Power Modes and Power Reduction Techniques

   

http://www.cypress.com/documentation/application-notes/an90114-psoc-4000-family-low-power-system-des...                         AN90114 - PSoC® 4000 Family Low-Power System Design Techniques

   

http://www.cypress.com/documentation/application-notes/an92584-designing-low-power-and-estimating-ba...                          AN92584 - Designing for Low Power and Estimating Battery Life for BLE Applications

       

http://video.cypress.com/video-library/search/psoc+4+low+power/

       

Regards, Dana.

[Anonymous]

How can I close ECO clock in my lowpower mode? Use CysysclkEcoStop() API or disable ECO component in .cysch ? I found CysysClkEcoStop() is useless when I was testing my deep sleep mode current consumption, but disable ECO component in .cysch is useful, it made my current consumption smaller.

   

 Best Regards!

[ETRO_SSN583]

In AN92584 did you implement the BL:ESS power mode before turning off ECO ?

       

Regards, Dana.

[D_Sd_3235936]

Dana,

Can you please specify how to implement the BL:ESS power mode ?

[Anonymous]

The app note she is referring to is here: http://www.cypress.com/documentation/application-notes/an92584-designing-low-power-and-estimating-ba...