# configTOTAL\_HEAP\_SIZE on AT91SAM7S64 port

**URL:** <https://forums.freertos.org/t/configtotal-heap-size-on-at91sam7s64-port/2886>\
**Category:** Kernel\
**Created:** [March 13, 2009, 11:41am UTC](https://forums.freertos.org/t/configtotal-heap-size-on-at91sam7s64-port/2886 "2009-03-13T11:41:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [March 13, 2009, 11:41am UTC](https://forums.freertos.org/t/configtotal-heap-size-on-at91sam7s64-port/2886/1 "2009-03-13T11:41:21Z")

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**[meandmyself](https://sourceforge.net/u/meandmyself/)** wrote on [Friday, March 13, 2009](https://sourceforge.net/p/freertos/discussion/382005/thread/7e826cfe/#8fc6):

Hi 🙂

Does anyone know why in FreeRTOSConfig.h a large heap is declared?

#define configTOTAL\_HEAP\_SIZE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ( ( size\_t ) 14200 )

14200 bytes of heap seems to be a lot. Also some sort of magical number!

thanks

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<div class="post-metadata">

**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [March 13, 2009, 11:50am UTC](https://forums.freertos.org/t/configtotal-heap-size-on-at91sam7s64-port/2886/2 "2009-03-13T11:50:14Z")

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**[icefishhead](https://sourceforge.net/u/icefishhead/)** wrote on [Friday, March 13, 2009](https://sourceforge.net/p/freertos/discussion/382005/thread/7e826cfe/#8fc6/58fb):

The task stack is also built in this heap, so it’s large.