Jetson tx2 has DMA?

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,everyone. I want to know if tx2 has DMA mechanism because I want to use this mechanism to handle the data transmission of the USB cameras. In fact, if I use CPU to do this process,it can reduce the efficiency for cpu to do other things. However, if DMA can do this, there’re more cpu resources and it can handle some other works.So,does tx2 has DMA mechanism?

2

Hi,
Please install tegra_multimedia_api samples through Jetpack and check 12_camera_v4l2_cuda. It captures video frames into NvBuffer instead of CPU buffers.

3

Hi,DaneLLL.The cameras I am using are Basler USB cameras.So I can only use the SDK Basler provides for capturing.So,it’s likely that I cannot use 12_camera_v4l2_cuda.

4

Hi,
You may check if you can customize Basler SDK to use NvBuffer. NvBuffer is DMA mechanism on TX2.