I have 3 questions related to your new product - Jetson Orin Nano.
- In the specs you mention “8 lanes MIPI CSI-2 D-PHY 2.1 (up to 20Gbps)” which is 2.5Gbps per lane. But D-PHY 2.1 is capable of 4.5Gbps as far as I know. Can you explain what causes that difference?
- Jetson Orin Nano Developer Kit carrier board includes two 22-position flex connectors to connect CSI camera modules, that support CAM0: CSI 1x2 lane and CAM1: CSI 1x2 lane or 1x4 lane. Does it mean that only 6 MIPI lanes are usable on the Developer Kit? Can 1x1 lane camera be used as either CAM0 or CAM1?
- Jetson Orin Nano comes without SD card support, but Jetson Orin Nano Developer Kit has a slot for SD card. Can you explain how does it work?
it’s correct that Orin series has moving to DPHY-v2.1, however, the bandwidth remain the same as 2.5Gbps per lane.
that’s due to 4-lane configure on CAM0 is NOT working now, additional fixes are necessary to enable that.
each CSI port, (i.e. CSI-A) support x1 or x2, it combine two CSI ports (i.e. CSI-A/B) to enable x4 config.
so, 1-lane configuration is supported.
For flashing Orin Nano 8GB with SD card, please use SDKManager. Or you may try to generate the image by referring to
Flashing Support — Jetson Linux Developer Guide documentation
FYI, by checking this internally, the peak bandwidth of DPHY is up-to 2.5 Gbps.
I’ve also revise my previous comments accordingly.
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