Can I use External interrupt Pins for Wakeup?

[nooshin_1382]

Posted on August 08, 2015 at 14:27

Hi

I want to use External IRQ Pins for Wake up , Can Use These interrupts or not ? ex : EIRQ0 Best Regards Nazerian Vanima

[ssk]

Posted on August 10, 2015 at 07:00

Hello,

Which power down mode you are using? Based on power down mode used, the exit sources are different. Refer section #8.1.3 of reference manual.As for using external interrupt, you need to use wakeup module (corresponding wakeup pin) for exiting the stop and standby power down mode.Regards,Mike.

[nooshin_1382]

Posted on August 10, 2015 at 07:41

Hi Mike

Thanks for your response I use the STANDBY mode for going to sleep and use wake up pins for gonig to DRUN mode but my problem is the SPC560B50L5 have 19 Wakeup pins and i need 25 Wakeup pin because of this issue i think about external interrup . according to Refrence manual i think the MCU did'nt wakeup with external interrupt  Best Regards Nazerian Vanima

[ssk]

Posted on August 10, 2015 at 07:49

Yes, wakeup is not possible with external interrupt pins. Instead you can try some decoding logic using available wakeup pins.

Best Regards,Mike.

[Erwan YVIN]

Posted on August 10, 2015 at 16:46

Hello Vanima ,

From STANDBY mode, wakeup is not possible by EIRQ.you should use WKUP Interrupt.    Best regards                 Erwan