Rock960-AB Wiki¶

Getting Started¶

Hardware Required:

Flashing the image¶

Note :¶

Skip step 1 and 2 if you already have rkdeveloptool

Steps :¶

STEP 1 : Install build dependency for rkdevtool which is used for flashing¶

1	$ sudo apt-get install libudev-dev libusb-1.0-0-dev dh-autoreconf

STEP 2 : Compile rkdevtool¶

$ git clone https://github.com/rockchip-linux/rkdeveloptool
$ cd rkdeveloptool
$ autoreconf -i
$ ./configure
$ make

Now you have rkdeveloptool executable at the current directory.

1	$ sudo cp rkdeveloptool /usr/local/bin/

STEP 3 :Boot device into maskrom mode¶

Maskrom mode is the code inside the Rockchip SoC running and waiting for commands from USB when there is no external bootable media. To put the device into maskrom mode:

power on rock960
plug the rock960 to Linux desktop with USB type A to type C cable
press and hold the maskrom key, then short press reset key
release mask rom key(important!)

On the host PC, lsusb should show the following VID/PID if the board is in maskrom mode: Bus 003 Device 061: ID 2207:0011

STEP 4 : Prepare the flash environment¶

Run the following command to download and run the mini loader to init DRAM and prepare flashing environment:

1	$ sudo rkdeveloptool db rk3399_loader_v1*.bin

Step 5: Flash images onto ROCK960 eMMC and reboot¶

Write the image to eMMC with the following command and address:

1	$ sudo rkdeveloptool wl 0 system.img

This will take a while, after it finishes, run

1	$ sudo rkdeveloptool rd

Now you reboot to the new image on eMMC.

Networking¶

Network Devices available:

Wifi
Bluetooth

Using a Camera on Rock960-AB¶

Using GStreamer¶

To record a video in the avi format use the following command

gst-launch-1.0 v4l2src device=/dev/video8 ! avimux ! filesink location=filename.avi -e

To record a video in the mkv format use the following command

gst-launch-1.0 -e v4l2src device=/dev/video8 ! videoconvert ! matroskamux ! filesink location=filename.mkv

Note

Device number might change so be careful.

Using FFMPEG¶

To install ffmpeg use the following command:

sudo apt install ffmpeg

To check the index of the USB use v4l-utils.You can install it and get the index using the commands below:

sudo apt install v4l-utils
v4l2-ctl --list-devices

To record a video using ffmpeg the following command can be used:

ffmpeg -i /dev/video8 filename.avi

OR

ffmpeg -f v4l2 -video_size 640x480 -i /dev/video8 -c:v libx264 filename.mp4

Sound on Rock960-AB¶

Sound recording and playback is tested using a USB Mic and a Speaker connected to USB Sound Adapter.

Note

Device and card numbers might change so be careful.

Sound Recording¶

To list the recording devices you can use this command:

arecord -l

To record a wav file you can use the following command:

arecord -vv -Dplughw:2,0 -f dat filename.wav

Sound Playback¶

To list the playback devices use this command:

aplay -l

To playback a wav file you can use the following command:

aplay -vv --device=hw:2,0 filename.wav

OpenCV on Rock960-AB¶

Install OpenCV-3.3¶

sudo opkg install python3-opencv

Test OpenCV-3.3¶

 sudo opkg install git
 git clone https://github.com/shunyaos/object-recognition-dnn.git
 git checkout rock960
 cd object-recognition-dnn
 python3 detect.py

Test Outcome¶

Tensorflow on Rock960-AB¶

This image comes pre-installed with Tensorflow-1.9

Release info¶

Shunya O/s Version: 0.1-Beta

Kernel Version: 4.4.154

Bootloader: U-BOOT

Bootloader Version:

Desktop Environment (if applicable): XFCE