Jetson NANO 2GB devkit - how to communicate between CPU and GPU

Autonomous Machines Jetson & Embedded Systems Jetson Nano
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I have a Jetson NANO 2GB devkit. I want to understand how I can communicate between the CPU and GPU. I do not want to use any IDE. I want to understand what the physical medium is and protocol, and how I would address the GPU.

e.g. in some systems I might use I2C or SPI. But I have no idea where to find this detail for the Jetson NANO 2GB devkit.

Any help appreciated.

Thanks

Mike

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Moving into Jetson Nano forum.

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Hi,
On Jetson platforms, we have NvBuffer APIs for processing data on CPU/GPU/other hardware engines. Functions are defined in

/usr/src/jetson_multimedia_api/include/nvbuf_utils.h

Generally we call NvBufferMemSyncForCpu()/NvBufferMemSyncForDevice() to make sure the process is done on CPU or GPU. There is no direct communication between CPU and GPU.

If you run a CUDA sample, you can see similar APIs for synchronization.

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