# How Cortex-R5 access sysram

**URL:** https://forums.developer.nvidia.com/t/how-cortex-r5-access-sysram/175706
**Category:** Jetson TX2
**Tags:** jetson-inference
**Created:** [April 20, 2021, 1:40am UTC](https://forums.developer.nvidia.com/t/how-cortex-r5-access-sysram/175706 "2021-04-20T01:40:21Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![pqy1010](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pqy1010](https://forums.developer.nvidia.com/u/pqy1010)
#### Post date: [April 20, 2021, 1:40am UTC](https://forums.developer.nvidia.com/t/how-cortex-r5-access-sysram/175706/1 "2021-04-20T01:40:21Z")

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I want to use Cortex-R5(SPE) directly access sysram to read or write data, so how can i do ?

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### Author: ![kayccc](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/kayccc/32/14043_2.png) [@kayccc](https://forums.developer.nvidia.com/u/kayccc)
#### Post date: [April 20, 2021, 2:28am UTC](https://forums.developer.nvidia.com/t/how-cortex-r5-access-sysram/175706/2 "2021-04-20T02:28:15Z")

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Please find the Jetson Sensor Processing Engine (SPE) Software Sources from download center: [Jetson Download Center | NVIDIA Developer](https://developer.nvidia.com/embedded/downloads)

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### Author: ![nadeemm](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/nadeemm/32/367020_2.png) [@nadeemm](https://forums.developer.nvidia.com/u/nadeemm)
#### Post date: [October 18, 2021, 6:15pm UTC](https://forums.developer.nvidia.com/t/how-cortex-r5-access-sysram/175706/3 "2021-10-18T18:15:08Z")

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