Psoc Creator 4 - GPIO Interrupt - DeepSleep

[Anonymous]

May anyone provide me a sample of code to handle an interrupt on an external pin that coexists with DeepSleep mode?
Compared to previous versions Psoc Creator 4 has introduced some difference in this regard ?

   

TNX

[rola_264706]

You can't wake the Component up from deep sleep with a regular  Interrupt. You need to use the I2C component to wake up the device and an external I2C signal to wake up the device.

[rola_264706]

See this video http://www.cypress.com/video-library/PSoC-Software/psoc-101-lesson-17-deep-sleep/387641.

[Bob_Marlowe]

Deep sleep can be exited by a GPIO interrupt.

       

Bob

[rola_264706]

@Bob Marlowe I was going by this information in this video .http://www.cypress.com/video-library/PSoC-Software/psoc-101-lesson-17-deep-sleep/387641

[Vasanth]

Hi,

PSoC 4 devices can wakeup from deep sleep with the GPIO interrupt. See the image attached which shows the wake up sources on each power mode. 

@bob goar : I think you got confused by this statement "While it saves more power, deep sleep has fewer options for waking up. In sleep mode all the hardware continues to run and any interrupt wakes the device up. Deep sleep shuts down most of the hardware and so those interrupts cannot fire. One exception to that rule is the serial communication blocks, which has an enable wake from deep sleep option in I2C mode." It means the interrupts generated from hardware block will not be available as they are shutdown. Hope this clears the confusion.

@iFedex: I have attached one simple PICU interrupt based example project for your reference

   

All this info including the table can be found in this appnote : http://www.cypress.com/file/121271/download

Best Regards,
VSRS