# Schuduler not running

**URL:** <https://forums.freertos.org/t/schuduler-not-running/195>\
**Category:** Kernel\
**Created:** [June 25, 2009, 2:07pm UTC](https://forums.freertos.org/t/schuduler-not-running/195 "2009-06-25T14:07:40Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [June 25, 2009, 2:07pm UTC](https://forums.freertos.org/t/schuduler-not-running/195/1 "2009-06-25T14:07:40Z")

</div>

**[xawery](https://sourceforge.net/u/xawery/)** wrote on [Thursday, June 25, 2009](https://sourceforge.net/p/freertos/discussion/382005/thread/0e4a9a51/#d1e1):

Hi,  
I’m trying to run FreeRTOS on my custom board with AT91SAM7X and Crossworks. Simple LED switching without RTOS works. With scheduler it only works only in debug mode and only when I use step mode(line by line). Could it be hardware problem? Instable clock, PLL?  
I’ll appreciate any help.

---

<div class="post-metadata">

**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [June 25, 2009, 2:23pm UTC](https://forums.freertos.org/t/schuduler-not-running/195/2 "2009-06-25T14:23:26Z")

</div>

**[davedoors](https://sourceforge.net/u/davedoors/)** wrote on [Thursday, June 25, 2009](https://sourceforge.net/p/freertos/discussion/382005/thread/0e4a9a51/#d1e1/df07):

Does this help [http://ccgi.rowley.co.uk/support/faq.php?do=article&articleid=35](http://ccgi.rowley.co.uk/support/faq.php?do=article&articleid=35)