# FreeRTOS on AT90S8535??

**URL:** <https://forums.freertos.org/t/freertos-on-at90s8535/2382>\
**Category:** Kernel\
**Created:** [September 30, 2005, 6:06pm UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382 "2005-09-30T18:06:35Z")\
**Posts on this page:** 5\
**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:** [September 30, 2005, 6:06pm UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382/1 "2005-09-30T18:06:35Z")

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**nobody** wrote on [Friday, September 30, 2005](https://sourceforge.net/p/freertos/discussion/382005/thread/68a2b43f/#a27f):

Can FreeRTOS run on a AT90S8535 without modification?  
Or does it need a new port?

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [September 30, 2005, 6:26pm UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382/2 "2005-09-30T18:26:57Z")

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**nobody** wrote on [Friday, September 30, 2005](https://sourceforge.net/p/freertos/discussion/382005/thread/68a2b43f/#a27f/4a7a):

If its an AVR then take a look at the section of the FreeRTOS WEB site about using a part other than an at323.&nbsp; However if it just has 512 bytes of RAM then this is not really enough to do anything useful.

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [September 30, 2005, 7:59pm UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382/3 "2005-09-30T19:59:58Z")

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**nobody** wrote on [Friday, September 30, 2005](https://sourceforge.net/p/freertos/discussion/382005/thread/68a2b43f/#a27f/4774):

Its an AVR but can’t get it running because it returns from the function vTaskStartScheduler()

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [October 1, 2005, 7:37am UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382/4 "2005-10-01T07:37:50Z")

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**nobody** wrote on [Saturday, October 01, 2005](https://sourceforge.net/p/freertos/discussion/382005/thread/68a2b43f/#a27f/4774/37c0):

vTaskStartScheduler() will return if there is not enough RAM to create the idle task.

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [October 4, 2005, 6:41pm UTC](https://forums.freertos.org/t/freertos-on-at90s8535/2382/5 "2005-10-04T18:41:38Z")

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**nobody** wrote on [Tuesday, October 04, 2005](https://sourceforge.net/p/freertos/discussion/382005/thread/68a2b43f/#a27f/e982):

Thanx, I will try to replace the MCU for an ATMEGA32 will have more RAM available and is pin compatible.