How can Jetpack 6.2 enable CAM_FRSYNC1 (GPIO3_PBB.02) to output a synchronization signal to the camera?

Robotics & Edge Computing Jetson Systems Jetson AGX Orin
1

Our board design uses CAM_FRSYNC1 as the trigger source. However, the official manual does not provide information on the usage of CAM_FRSYNC1 as a synchronization signal. Could you provide the corresponding usage instructions? What specific things do I need to configure?

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2

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Based on the provided context, I’ll try to provide a comprehensive answer to your question.

The Jetson AGX Orin Series is a platform that provides various features for AI computing, computer vision, and other applications. The platform includes a system-on-chip (SoC) and various peripherals, such as SPI interfaces, I2C interfaces, and MIPI CSI lanes.

Regarding the CAMFRSYNC1 signal, it is not explicitly mentioned in the provided context. However, based on the information available, I can try to provide some general guidance on how to use it as a synchronization signal.

In general, synchronization signals like CAMFRSYNC1 are used to synchronize the operation of multiple components or modules in a system. To use CAMFRSYNC1 as a synchronization signal, you would typically need to configure the following:

  1. Signal routing: Ensure that the CAMFRSYNC1 signal is properly routed from the source component to the destination component(s) that need to be synchronized.
  2. Signal configuration: Configure the CAMFRSYNC1 signal to match the requirements of the destination component(s). This may involve setting the signal’s voltage level, frequency, or other parameters.
  3. Synchronization mode: Configure the synchronization mode of the destination component(s) to use the CAMFRSYNC1 signal as the synchronization source. This may involve setting the component’s synchronization mode to “external” or “CAMFRSYNC1”.
  4. Timing adjustments: Adjust the timing of the CAMFRSYNC1 signal to ensure that it is properly aligned with the operation of the destination component(s).

Unfortunately, without more specific information on the CAMFRSYNC1 signal and its usage in the Jetson AGX Orin Series, I cannot provide more detailed instructions. I recommend consulting the official documentation or contacting NVIDIA support for more information on using CAMFRSYNC1 as a synchronization signal.

In comparison to other synchronization signals, CAMFRSYNC1 may have specific requirements or constraints that need to be considered. For example, it may require a specific voltage level or frequency range to operate correctly. Additionally, the synchronization mode and timing adjustments may need to be carefully configured to ensure proper operation.

In summary, while I can provide some general guidance on using CAMFRSYNC1 as a synchronization signal, more specific information is needed to provide detailed instructions. I recommend consulting the official documentation or contacting NVIDIA support for more information.

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4

By enabling the tsc_sig_gen@c6a0000 node in the device tree, I discovered that the cdi_tsc node appeared under the /dev directory. How can I make it output the trigger signal that I have configured?

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6

The CAM_FRSYNC1 just a GPIO pin. If you need to toggle it to trigger capture you need to control this pin by yourself for it.