# WP8548 and ulpm in AT comand and legato app **URL:** \ **Category:** Legato Application Framework\ **Created:** [August 13, 2020, 11:20am UTC](https://forum.legato.io/t/wp8548-and-ulpm-in-at-comand-and-legato-app/5352 "2020-08-13T11:20:50Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Riegosalz](https://avatars.discourse-cdn.com/v4/letter/r/f1d935/32.png) [@Riegosalz](https://forum.legato.io/u/Riegosalz)\ **Post date:** [August 13, 2020, 11:20am UTC](https://forum.legato.io/t/wp8548-and-ulpm-in-at-comand-and-legato-app/5352/1 "2020-08-13T11:20:50Z")
Hello, In my App I config this: > le\_ulpm\_BootOnTimer(180); > le\_ulpm\_BootOnGpio(36, LE\_ULPM\_GPIO\_OFF); > le\_ulpm\_BootOnGpio(38, LE\_ULPM\_GPIO\_LOW); then by AT commands I can see: > AT!POWERWAKE? > > !POWERWAKE: > TIMER: 180 > GPIO38: 2 > OK then, I turn ON GPIO36 (36 not 38) when the system is still wake and then AT commands answer this: > AT!POWERWAKE? > > !POWERWAKE: > TIMER: 180 > GPIO36: 5 > GPIO38: 5 > OK Why turn On a not used gpio can that change the wake up contiguration? Why pass to 5? on legato, 5 is off but in At commands, 5 is Both (rising or falling) thanks ---
**Author:** ![mehdiALL1](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@mehdiALL1](https://forum.legato.io/u/mehdiALL1)\ **Post date:** [August 20, 2020, 7:22am UTC](https://forum.legato.io/t/wp8548-and-ulpm-in-at-comand-and-legato-app/5352/2 "2020-08-20T07:22:33Z")
How did you turn on the GPIO36? Where did you see that: _on legato, 5 is off_ BR ---
**Author:** ![Riegosalz](https://avatars.discourse-cdn.com/v4/letter/r/f1d935/32.png) [@Riegosalz](https://forum.legato.io/u/Riegosalz)\ **Post date:** [August 20, 2020, 8:07am UTC](https://forum.legato.io/t/wp8548-and-ulpm-in-at-comand-and-legato-app/5352/3 "2020-08-20T08:07:03Z")
Hello, GPIO36 is configurated as input. I turn on it fisically wiht a switch to 1,8V. 5 is = off: ![Captura](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/1X/3ce9af07cc5fb20032f279ff3e84eb823bda5d3e.png) ---
**Author:** ![mehdiALL1](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@mehdiALL1](https://forum.legato.io/u/mehdiALL1)\ **Post date:** [October 20, 2020, 8:08am UTC](https://forum.legato.io/t/wp8548-and-ulpm-in-at-comand-and-legato-app/5352/4 "2020-10-20T08:08:50Z")
Hello, Do you still have this issue? Did it happen with which Release/ Legato version?