Thor CSI Question

Robotics & Edge Computing Jetson Systems Jetson Thor
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1

hi, 目前我们自研板载使用SOM为T5000, software为JetPack7.1
在camera部分使用max96712通过CPHY连接到Thor的CSI,请问SDK bsp软件上是否支持CPHY？是否需要打补丁？
按照以往在Orin上的经验，JetPack5需要打补丁，JetPack6则不需要。
thanks

3

Yes, thor support CPHY but higher speed like > 2.5Gsps need NV support for signal tuning.

Thanks

4

请问这个是如何获取支持呢？ 是软件调优还是硬件调优？在JetPack下7.1上支持吗？

5

hi,请问下，我们现在使用的max96712,这部分有相应的CPHY Driver驱动demo源码吗？

6

I don’t have idea for max96712 need to config the PHY mode. But for the sensor you can just modify the phy_mode in device tree to config the Thor side.

Thanks

7

Hi 1967760537,

I checked JetPack 7.x (Thor) BSP sources regarding C-PHY and MAX96712.

  • C-PHY is supported in the stack (DT → NVCSI → VI). phy_mode = "CPHY" is correctly parsed and propagated.
  • However, support is not fully complete end-to-end (some paths still assume D-PHY, and tuning/calibration is D-PHY-focused).
  • phy_mode alone is not enough for a full working pipeline.

About MAX96712:

  • There is only a minimal NVIDIA-specific driver (not a full media pipeline driver).
  • No reference design found using MAX96712 + C-PHY (only D-PHY examples).
  • GMSL framework in BSP is mainly for MAX9295/9296, not MAX96712.

As summary C-PHY works at framework level, but MAX96712 + C-PHY likely requires custom integration and possibly NVIDIA support, especially for high-speed tuning (>2.5Gsps).

I hope this helps!

Jose Morera
Embedded Software Engineer at RidgeRun
Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com
Website: www.ridgerun.com

9

您好，请问cphy调通了吗？我们也遇到了类似的问题，也是96712接了cphy，目前看拉流拉不起来，15帧左右就卡了，重新拉还能拉，但还是10多帧，不知道为什么