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  Frequently asked Questions (FAQ)

 
1. FAQ - e-CAM50_CUNX
 
  1.1 Why should I choose e-CAM50_CUNX?
  1.2 I have an e-CAM50_CUNANO camera. Can I interface and use it with NVIDIA® Jetson Xavier NX™ Developer Kit?
  1.3 I have a custom Xavier NX carrier board. How do I interface e-CAM50_CUNX to my setup?
  1.4 What are the differences in camera interface between Jetson Nano and Jetson Xavier NX?
  1.5 How to use Jetson ISP with this camera?
  1.6 Can I get a 1m cable for this camera module?
  1.7 Jetson Xavier NX can support 3 x 4-lane or 6 x 2-lane cameras. How to connect multiple cameras with this development board?
  1.8 I'm getting flickering in indoor conditions. How to adjust the camera for different lighting frequency?
  1.9 What is the weight of the camera board?
  1.10 How to use this camera with OpenCV?
  1.11 How to install OpenCV and CUDA after flashing Jetson Xavier NX with e-con provided quick start package?
  1.12 How to install e-con camera without flashing the Jetson Xavier NX board?
  1.13 Which document I need to refer to use the camera once I received the module?
  1.14 Can I use this camera in NIR light condition?
  1.15 What is the glass-to-glass latency for this camera?
  1.16 Can I use flash trigger to capture images from this camera?
  1.17 Shall I connect this camera to Raspberry Pi 3B+?
  1.18 Is it possible to get RAW Bayer frames from the camera?
   
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 1. e-CAM50_CUNX - FAQ
  
1.1 Why should I choose e-CAM50_CUNX?
 
e-CAM50_CUNX has support for NVIDIA® Jetson Xavier NX™ Developer Kit, which has a power-efficient, high-performance and compact Jetson Xavier NX module.
 
It benefits new cloud-native support and accelerates the NVIDIA software stack in as little as 10 W with more than 10x the performance of its widely adopted predecessor Jetson TX2 know more.
 
1.2 I have an e-CAM50_CUNANO camera. Can I interface and use it with NVIDIA® Jetson Xavier NX™ Developer Kit?
 
Yes, e-CAM50_CUNANO product is compatible with NVIDIA® Jetson Xavier NX™ Developer Kit. Please refer to the Getting Started Manual on how to connect with the Developer Kit and install the binaries.
 
1.3 I have a custom Xavier NX carrier board. How do I interface e-CAM50_CUNX to my setup?
 
Currently e-con provides release package to support NVIDIA® Jetson Xavier NX™ Developer Kit. For supporting your hardware setup, kindly write your requirements to sales@e-consystems.com
 
1.4 What are the differences in camera interface between Jetson Nano and Jetson Xavier NX ?
 
Although both the Jetson Nano and Jetson Xavier NX developer Kits have same camera interface support (2x 2-lane MIPI CSI interface), the Xavier NX module has far more capabilities in terms of camera performance.
 
For example, Jetson Nano module has maximum support for 4 (2-lane) MIPI CSI cameras, whereas Jetson Xavier NX module supports upto 6 (2-lane) MIPI CSI cameras and is capable of streaming upto 24 MIPI CSI cameras with Virtual channel support.
 
For more information on the hardware differences, please refer to this link.
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1.5 How to use Jetson ISP with this camera?
 
e-CAM55_CUMI0521_MOD camera module has an on-board ISP and will provide the frames in UYVY format. So, this product does not use the ISP in Jetson Xavier NX.
 
1.6 Can I get a 1m cable for this camera module?
 
Currently the maximum supported FCC cable length is 15cm and it is supplied by default along with the product. For customization, kindly write your requirements to sales@e-consystems.com.
 
1.7 Jetson Xavier NX can support 3 x 4-lane or 6 x 2-lane cameras. How to connect multiple cameras with this development board?
 
NVIDIA® Jetson Xavier NX™ Developer Kit will support upto 2 x 2-lane cameras. You can use a custom carrier board for Jetson Xavier NX module to connect 3 x 4-lane or 6 x 2-lane cameras.
 
1.8 I'm getting flickering in indoor conditions. How to adjust the camera for different lighting frequency?
 
You can use the auto exposure control to avoid flickering in different lighting condition. If you are using manual exposure control, set the exposure value according to 50Hz or 60Hz lighting.
 
1.9 What is the weight of the camera board?
 
The camera board weight is 12grams without lens and 17.5grams with lens.
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1.10 How to use this camera with OpenCV?
 
e-con Systems provide V4L2 based camera driver. And hence it can be accessed by OpenCV.
 
Refer to this blog article on how to achieve maximum performance using OpenCV.
 
In this blog, the installation steps will be referred to Jetson TX2. But you can use this as reference and port the same to Jetson Xavier NX.
 
1.11 How to install OpenCV and CUDA after flashing Jetson Xavier NX with e-con provided quick start package?
 
CUDA and OpenCV can be installed using SDK Manager application provided by NVIDIA. SDK Manager application has an option to install the CUDA and other Software toolkit to Jetson board without erasing the rootfs. For more information, refer the SDK.
 
1.12 How to install e-con camera without flashing the Jetson Xavier NX board?
 
Jetson Xavier NX development kit will boot from external SD card. It carries all the boot binaries, kernel image, device tree, module drivers and rootfs. e-con Systems have provided option to upgrade the binaries in the SD card without affecting the existing root file system content. For more information, refer to "Upgrade procedure" section in e-CAM50_CUNX "Developer Guide".
 
1.13 Which document I need to refer to use the camera once I received the module?
 
For quick reference, you can start with "Getting Started Manual" under hardware documents section. This document contains the detail about the product deliverables, how to connect the camera to Jetson Xavier NX and how to flash the quick start package and test the camera.
 
1.14 Can I use this camera in NIR light condition?
 
The default lens supplied with the camera has IR Cut filter- filters the IR light. You can test it using other IR pass lens. For choosing different lens kindly write your requirement to sales@e-consystems.com.
 
1.15 What is the glass-to-glass latency for this camera?
 
The glass-to-glass latency is ~149ms for 5 MP, ~122ms for WQHD (2560x1440), ~93ms for FHD, ~80ms for SXGA-(1280x960), ~70ms for HD and VGA resolutions.
 
1.16 Can I use flash trigger to capture images from this camera?
 
By default, there is no trigger support. For customization, kindly write your requirements to sales@e-consystems.com.
 
1.17 Shall I connect this camera to Raspberry Pi 3B+?
 
Currently, e-con Systems provide camera driver for Jetson Xavier NX.
 
1.18 Is it possible to get RAW Bayer frames from the camera?
 
Current camera driver and firmware doesn't support getting RAW Bayer frames from camera. e-con Systems can customize the camera driver and the firmware according to your requirement. For customization, kindly write your requirements to sales@e-consystems.com.
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