# Can freeRTOS support ARMV8-A?

**URL:** <https://forums.freertos.org/t/can-freertos-support-armv8-a/15763>\
**Category:** Kernel\
**Tags:** debug\
**Created:** [September 5, 2022, 9:44am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763 "2022-09-05T09:44:06Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![spring](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@spring](https://forums.freertos.org/u/spring)\
**Post date:** [September 5, 2022, 9:44am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/1 "2022-09-05T09:44:06Z")

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I am using cortex-A35 chip. Out of some reasons, I am considering chosing freeRTOS as an OS. But i am not sure if FreeRTOS supports cortex-A35. Are there anybody know about this?

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**Author:** ![spring](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@spring](https://forums.freertos.org/u/spring)\
**Post date:** [September 5, 2022, 9:53am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/2 "2022-09-05T09:53:06Z")

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I have checked port demos in freeRTOS office site. FreeRTOS currently dosen’t support cortex-A35, but it supports cortex-A53, which is also 64-bits system struct. If i want to make freeRTOS to support A35, what kind of thinks that i should do?

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**Author:** ![aggarg](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/aggarg/32/4245_2.png) [@aggarg](https://forums.freertos.org/u/aggarg)\
**Post date:** [September 6, 2022, 7:06am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/3 "2022-09-06T07:06:10Z")

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You can use Cortex-A53 port as the starting point. This page also provides more details - [RTOS for ARM Cortex-A](https://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html)

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**Author:** ![spring](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@spring](https://forums.freertos.org/u/spring)\
**Post date:** [September 6, 2022, 7:23am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/4 "2022-09-06T07:23:04Z")

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Thanks a lot. I have checked it.  
But A35 and A53 is not totally the same. Such as MMU, which seems not supported in Cortext-A53 port. GIC is supported. Are there any other peripherals that i should care about?

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**Author:** ![aggarg](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/aggarg/32/4245_2.png) [@aggarg](https://forums.freertos.org/u/aggarg)\
**Post date:** [September 6, 2022, 7:34am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/5 "2022-09-06T07:34:25Z")

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> [@spring](#):
>
> Are there any other peripherals that i should care about?

Except GIC (which you already mentioned), I do not think there is any. Try running it and let us know if you face any problem.

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**Author:** ![spring](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@spring](https://forums.freertos.org/u/spring)\
**Post date:** [September 6, 2022, 7:47am UTC](https://forums.freertos.org/t/can-freertos-support-armv8-a/15763/6 "2022-09-06T07:47:59Z")

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Sure, I’ll run freeRTOS base on A53-port. thank you!