VEYE CS Camera on Firfly Boards

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How to use VEYE and CS series cameras on Firefly's RK35XX board

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1 Overview

VEYE series and CS series cameras are the video streaming mode MIPI cameras we designed. This article takes Firefly's ROC-RK3566-PC and ROC-RK3588S-PC board as an example to introduce how to connect VEYE and CS series cameras to RK3566/RK3568/RK3588 system.

We provide drivers for both Linux(Ubuntu) and Android.

1.1 Camera Module List

Series Model Status
VEYE Series VEYE-MIPI-IMX327S Done
VEYE Series VEYE-MIPI-IMX462 Done
VEYE Series VEYE-MIPI-IMX385 Done

In addition, the driver for the Fpdlink connection mode has been finished on the Ubuntu system.

2 Hardware Setup

VEYE series and CS series cameras are provided with Raspberry Pi compatible 15Pin FFC connector. An ADP-Tfirefly adapter board is required to adapt to the ROC-RK35xx-PC board.

2.1 Connection of camera and ADP-Tfirefly

The two are connected using 1.0 mm pitch*15P FFC cable with opposite direction. The cable must be inserted with the silver contacts facing outside.

VEYE camera connect to ADP-Tfirefly

2.2 Connection of ADP-Tfirefly and Firefly Board

The two are connected using 0.5 mm pitch*30P FFC cable with same direction. The cable must be inserted with the silver contacts facing inside.

ADP-Tfirefly connect to Firefly board

2.3 Overall connection

Firefly Board and VEYE camera overall

2.4 FPD-Link III Camera Connection Diagram

FPDLINK Camera to RK3588S


3 Introduction to github repositories

https://github.com/veyeimaging/rk35xx_veye_bsp

https://github.com/veyeimaging/rk35xx_firefly

includes：

  • driver source code
  • i2c toolkits
  • application demo

In addition, a compiled linux kernel installation package and Android image is provided in the releases.

4 Ubuntu

4.1 Upgrade Firefly Ubuntu system（RK356x）

4.1.1 Overview

This section describes how to update the RK35xx system to support our camera modules.

For the kernel version 4.19, we provide a deb installation package that can be installed directly.

For the kernel version 5.10, we provide a burning image.

For versions where no installer is provided, you will need to refer to later chapters to compile from the driver source code.

Although we are now using Ubuntu system as an example to introduce, other Linux distributions can also refer to this article.

4.1.2 kernel version 5.10

For the ROC-RK3588S-PC, we have provided an image of the release system.

Download the latest released image file corresponding to the camera model you are using from https://github.com/veyeimaging/rk35xx_firefly/releases/ .

Refer to the Firefly documentation to burn in a standard system.

4.1.3 kernel version 4.19
4.1.3.1 Burn Firefly standard system

Refer to the Firefly documentation to burn in a standard system.

4.1.3.2 Using prebuilt Image and dtb file

Using the compiled debain installation package

On the RK35xx board,

Download the latest rk356x_firefly_ubuntu.tar.gz from https://github.com/veyeimaging/rk35xx_firefly/releases/ .

tar -xavf rk356x_firefly.tar.gz

cd rk356x_firefly/released_images/ROC-RK3566-PC/ubuntu/

sudo dpkg -i linux-image-4.19.232_4.19.232-21_arm64.deb

If the version does not match, it needs to be compiled from the source code.

4.2 Upgrade Firefly Ubuntu system（RK358x）

For the ROC-RK3588S-PC, we have provided an image of the release system.

Download the latest released image file corresponding to the camera model you are using from https://github.com/veyeimaging/rk35xx_firefly/releases/ .

Refer to the Firefly documentation to burn in a standard system.

4.3 Check system status

Run the following command to confirm whether the camera is probed.

  • VEYE-MIPI-XXX

dmesg | grep veye

The output message appears as shown below：

veyecam2m 4-003b:  camera id is veyecam2m

veyecam2m 4-003b: sensor is IMX327

  • Run the following command to check the presence of video node.

ls /dev/video0

The output message appears as shown below.

video0

For ROC-RK3566-PC, the camera is connected to i2c-4, for ROC-RK3588S-PC to i2c-7.

4.4 Application examples

4.4.1 v4l2-ctl
4.4.1.1 Install v4l2-utils

sudo apt-get install v4l-utils

4.4.1.2 List the data formats supported by the camera

v4l2-ctl --list-formats-ext

4.4.1.3 Snap YUV picture

v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat='NV12' --stream-mmap --stream-count=100 --stream-to=nv12-1920x1080.yuv

For RK3566, also:

v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=UYVY --stream-mmap --stream-count=1 --stream-to=uyvy-1920x1080.yuv

Play YUV picture

ffplay -f rawvideo -video_size 1920x1080 -pix_fmt nv12 nv12-1920x1080.yuv

4.4.1.4 Check frame rate

v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=UYVY --stream-mmap --stream-count=-1 --stream-to=/dev/null

4.4.2 yavta

git clone https://github.com/veyeimaging/yavta.git

cd yavta;make

./yavta -c1 -Fnv12-1920x1080.yuv --skip 0 -f NV12 -s 1920x1080 /dev/video0

4.4.3 gstreamer

We provide several gstreamer routines that implement the preview, capture, and video recording functions. See the samples directory on github for details.

4.4.4 Import to OpenCV

First install OpenCV:

sudo apt install python3-opencv

We provide several routines to import camera data into opencv. See the samples directory on github for details.

In addition, this page from Firefly has some reference value.

4.5 Compile drivers and dtb from source code

  • RK356x

https://github.com/veyeimaging/rk35xx_firefly/tree/main/linux/drivers/rk356x

  • RK358x

https://github.com/veyeimaging/rk35xx_firefly/tree/main/linux/drivers/rk358x

5 i2c script for parameter configuration

Because of the high degree of freedom of our camera parameters, we do not use V4L2 parameters to control, but use scripts to configure parameters.

https://github.com/veyeimaging/rk35xx_firefly/tree/main/i2c_cmd

using -b option to identify which bus you want to use.

  • VEYE series

Video Control Toolkits Manual ：VEYE-MIPI-327 I2C

  • CS series

Video Control Toolkits Manual ：CS-MIPI-X I2C

6 Android

6.1 Update Android system

  • ROC-RK3566-PC

Download the latest rk356x_firefly_android.tar.gz from https://github.com/veyeimaging/rk35xx_firefly/releases/

  • ROC-RK3588S-PC

Download the latest rk358x_firefly_android.tar.gz from https://github.com/veyeimaging/rk35xx_firefly/releases/

Burn the system refer to firefly's documentation.

6.2 Check system status

Login system via ADB, then run the following command to confirm whether the camera is probed.

  • VEYE-MIPI-XXX

dmesg | grep veye

The output message appears as shown below：

veyecam2m 4-003b:  camera id is veyecam2m

veyecam2m 4-003b: sensor is IMX327

  • Run the following command to check the presence of video node.

ls /dev/video0

The output message appears as shown below.

video0

The camera can be seen connected to the i2c-4.

6.3 Application example

The camera can be opened using the camera program that comes with the system.

6.4 Compile system from source code

  • RK356x

https://github.com/veyeimaging/rk35xx_firefly/tree/main/android/rk356x/drivers

  • RK358x

https://github.com/veyeimaging/rk35xx_firefly/tree/main/android/rk358x/drivers

7 Known issues

  1. The VICAP module of RK3588 does not support outputting the UYVY format, so please use the NV12 format instead.

8 References

  • ROC-RK3566-PC Manual

https://wiki.t-firefly.com/en/ROC-RK3566-PC/

  • ROC-RK3588S-PC Manual

https://wiki.t-firefly.com/en/ROC-RK3588S-PC/

  • Firefly Linux User Guide

https://wiki.t-firefly.com/en/Firefly-Linux-Guide/index.html

9 Document History

  • 2024-04-17

Support kernel v5.10 on RK3566.

  • 2023-05-22

Support Fpdlink-III on ubuntu system.

  • 2022-12-28

Add support for RK358x.

  • 2022-12-06

Support Android system.

  • 2022-10-22

Release 1st version.

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