How to Synchronize Two Raspberry Pi Camera Module v2.1 Cameras on Jetson Orin Nano?

Hello,

I am currently using two Raspberry Pi Camera Module v2.1 NOIR cameras connected to a Jetson Orin Nano board via the MIPI CSI-2 interface. My goal is to synchronize these two cameras for simultaneous frame capture. I would like to achieve this either by using master-slave mode or by sending a synchronization trigger signal from the Jetson board’s GPIO pins.

Firstly, I would like to know if the Raspberry Pi Camera Module v2.1 supports master and slave modes for synchronization purposes. Specifically, I want to configure one camera as the master and the other as the slave so that the slave camera is triggered by the master’s clock or trigger signal. If anyone has experience with synchronizing these camera modules or knows whether they can operate in master-slave mode for MIPI CSI-2, your insights would be greatly appreciated.

Alternatively, if master-slave mode is not supported, I am considering using the Jetson board’s GPIO pins to send a synchronization trigger signal to both cameras. However, I am unsure if the Raspberry Pi Camera Module v2.1 has an input pin that can receive an external synchronization trigger signal. If such a pin exists, could anyone please provide details on which pin it is and how to properly connect it to the Jetson board’s GPIO for synchronization?

Any guidance, advice, or examples of achieving synchronization for these cameras would be extremely helpful. Thank you for your support!

Hi @azalea_14

Your question is more about the Raspberry Pi Camera Module which have a imx219 sensor, you should review the vendor datasheet to know if this camera supports a master/slave mode.
I did a quick search on RPI forums and it looks like it doesn’t:
https://forums.raspberrypi.com/viewtopic.php?t=318229

From the Jetson perspective, its possible to use a GPIO to send an external trigger to a sensor, but you need to confirm that the sensor can support the trigger mode.

Regards,

Enrique Ramirez
Embedded SW Engineer at RidgeRun
Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com
Website: www.ridgerun.com

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