Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/f/nordic-q-a/1770/interrupt-pin-on-nrf8001-to-wake-mcuI need to wake my uC from sleep when the nrf8001 gets in connected mode and for that I need to supply an external interrupt on hardware interrupts on the MCU. Will active pin full fill my need?en-USTelligent Community 13Wed, 02 Apr 2014 09:54:03 GMTRE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7743?ContentTypeID=1Wed, 02 Apr 2014 09:54:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b3d2edd3-c58c-45f3-af50-c7195ea2c12eNishant Sood<p>I&#39;m right now getting it to sleep WHEN THERE ARE NO ACI EVENTS I think I&#39;m doing right, the uC sleeps but I&#39;m not able to wake up despite the fact that RDYN is connceted to pin 2 and as I use ATmega328 its the lowest level hardware interrupt that should make the uC wake up but itis not happning ,I have the issue covered here &gt;&gt;<a target="_blank" href="http://forums.adafruit.com/viewtopic.php?f=19&amp;t=52043" rel="nofollow">http://forums.adafruit.com/viewtopic.php?f=19&amp;t=52043</a></p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7742?ContentTypeID=1Mon, 31 Mar 2014 05:07:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:244c2f33-426c-4ac2-a120-b9e0b3515d3cNishant Sood<p>BUT I&#39;m not able to effectively wakeup from sleep, I&#39;m having the RDYN mapped to pin 2 of my atmega328p which is the lowest and first most hardware interrupt trigger still the chip won&#39;t wakeup efficiently. where I&#39;m wrong here?</p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7741?ContentTypeID=1Wed, 12 Mar 2014 09:24:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c5518609-8f7b-42af-84e5-ec74463b01c6run_ar<p>About the active line: This can be enabled and can be used to wake up the MCU prior to a connection event in case you would like to prepare some data to send in the event. Note that there is some restriction to the use as it will be automatically disabled if the connection/advertisement interval is shorter than 30ms.</p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7740?ContentTypeID=1Tue, 11 Mar 2014 18:17:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f04e2b5-68da-4959-a8bf-09611ba0ed9aNishant Sood<p>Yea thats why its an output pin</p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7739?ContentTypeID=1Mon, 10 Mar 2014 11:51:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:55714792-02ab-40bf-9c64-de8e1a7752b8run_ar<p>I&#39;m sorry for being unclear; the RDYN pin is handled by the nRF8001. So the MCU will get a logic level low, so you could configure it as a falling edge triggered interrupt.</p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7738?ContentTypeID=1Wed, 05 Mar 2014 13:51:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:550311c7-a2b2-42fc-b891-270c12f1a385Nishant Sood<p>This will be lowered by the MCU or it will get lowered by itself such that the MCU will receive a logic level low at the falling edge and this will trigger the interrupt?</p><div style="clear:both;"></div>RE: Interrupt Pin on nrf8001 to wake MCUhttps://devzone.nordicsemi.com/thread/7737?ContentTypeID=1Wed, 05 Mar 2014 13:30:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5f50ba32-96a1-4df0-9abf-fdb253a0e834run_ar<p>Hi,</p> <p>You should use the RDYN pin. This will be lowered by the MCU whenever the nRF8001 has an event ready.</p> <p>Br,</p><div style="clear:both;"></div>