# About :wm\_apmCustomStackSize

**URL:** <https://forum.sierrawireless.com/t/about-wm-apmcustomstacksize/336>\
**Category:** Open AT\
**Created:** [March 7, 2006, 6:15pm UTC](https://forum.sierrawireless.com/t/about-wm-apmcustomstacksize/336 "2006-03-07T18:15:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JC\_Macraut](https://avatars.discourse-cdn.com/v4/letter/j/4af34b/32.png) [@JC\_Macraut](https://forum.sierrawireless.com/u/JC_Macraut)\
**Post date:** [March 7, 2006, 6:15pm UTC](https://forum.sierrawireless.com/t/about-wm-apmcustomstacksize/336/1 "2006-03-07T18:15:40Z")

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Hi, I´m just starting with wavecom and im a little bit lost.

```auto
u32 wm_apmCustomStack [384];
const u16 wm_apmCustomStackSize = sizeof ( wm_apmCustomStack );
u8 ip_TraceLevel = 19;
```

Well… now I would like to know what is this: apmCustomStack [384] and, most important: what i can do with it??

Can anyone give me a light?  
Thanks,

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**Author:** ![pascalbrun](https://avatars.discourse-cdn.com/v4/letter/p/7ba0ec/32.png) [@pascalbrun](https://forum.sierrawireless.com/u/pascalbrun)\
**Post date:** [April 18, 2006, 10:20am UTC](https://forum.sierrawireless.com/t/about-wm-apmcustomstacksize/336/2 "2006-04-18T10:20:31Z")

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This is size allow for your stack. If you use more function call increase this value. If you use Ip stack increase also. A value for example of 4096 run correctly with an big application of 280K.