Possibility of connecting 6 pairs of cameras to TX1?

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

The TX1 has 12 mipi lanes, so if we could just give each camera it’s own lane, that would work really well.

I noticed that this Cypress application note AN75779

Has a section on connecting 2 image sensors to a single MIPI receiver.

The CX3 device has a 2-lane MIPI receiver, it connects the cameras to the same clock, and then has each camera send data on one of the MIPI lanes. Basically, the two 1-lane cameras in a stereo pair pretend to be a single 2-lane camera. The resulting stream has the data from from the two cameras interleaved per pixel, but this could be split on the GPU pretty easily/efficiently.

Do you think that a similar setup could work on the Tegra? It has 12 MIPI lanes, and so could potentially directly support 6 pairs of cameras.

From what I understand, the other SOC’s support a “3D camera mode” which provides this capability.

2

Figure 50 in section 9 of the following application note talks about what I am wondering about.

I believe that application note is talking about cameras that output data over a parallel bus, but I’m wondering if a similar setup might be possible using mipi.

3

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