Jetson Sensor Processing Engine (SPE) Source Code

Robotics & Edge Computing Jetson Systems Jetson Orin Nano
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1

I’m trying to find the sources for the Cortex-R5 Jetson Sensor Processing Engine (SPE) for Jetson Orin Nano. The latest developer guide is v36.4: Jetson Sensor Processing Engine (SPE) Developer Guide: Welcome does not have any link to the source tree.

The latest code I found belongs to Jetson Xavier NX: Compiling and flashing rt-aux-cpu-demo - Jetson & Embedded Systems / Jetson Xavier NX - NVIDIA Developer Forums. @DaveYYY responded in June 2023 pointing to https://developer.nvidia.com/embedded/l4t/r32_release_v6.1/sources/t186/l4t_rt_aux_cpu_src.tbz2 archive. Is it the latest? Will it work for Jetson Orin Nano?

Will it be beneficial for all developers if a link to the source code tree will be posted on the Jetson Sensor Processing Engine (SPE) Developer Guide: Welcome page?

2

From my observation, it seems that nVidia’s official development of SPE functionality is not so proactive and is almost on hold…

3

Actually, it’s a part of the “Driver Package (BSP) Sources” on this page: Jetson Linux | NVIDIA Developer: https://developer.nvidia.com/downloads/embedded/l4t/r36_release_v4.3/sources/public_sources.tbz2. Once you download the entire archive, need to extract the spe-freertos-bsp.tbz2 archive. The sources have January 2025 timestamp - looks like it’s still supported.

4

Although the timestamp is the latest, the functions inside seem to have not changed. The CAN bus is not supported yet, but it was supported in version 32.x.x.