Difference between revisions of "1012 NVIDIA TK1"

Revision as of 15:31, 14 December 2015

This page will guide you in using the Sensoray Model 1012 with NVIDIA tegra k1 development boards.

A modified kernel and driver are required.

The modified kernel can be flashed onto the TK1 from the development PC, installed by the TK1 or the modifications can be made by the TK1 and recompiled.

The driver needs to be modified before being compiled.

Flashing a modified kernel image

Instructions for flashing a Jetson Tegra K1 to run R21.4 with modifications to work with Sensoray Model 1012 Required: Jetson TK1 and host computer running Linux

Procedure: 1) Get the modified zImage extlinux.conf and tw6869.ko files for Jetson Tegra K1 and put them in Downloads folder 2) Follow Jetson quick-start guide from NVIDIA

a) quick-start step 1. Download Linux for Tegra package and sample root file system

  $   wget http://developer.download.Jetson.com/embedded/L4T/r23_Release_v1.0/Tegra210_Linux_R23.1.1_armhf.tbz2
  $   wget http://developer.download.Jetson.com/embedded/L4T/r23_Release_v1.0/Tegra_Linux_Sample-Root-Filesystem_R23.1.1_armhf.tbz2

b) quick-start step 2. Untar and assemble the rootfs

  $   sudo tar xpf ${RELEASE_NAME}
  $   cd Linux_for_Tegra/rootfs/
  $   sudo tar xpf ../../Tegra_Linux_Sample-Root-Filesystem_R21.4.0_armhf.tbz2
  $   cd ../

3) Modify the kernel to be flashed

  $ sudo cp ~/Downloads/zImage ~Linux_for_Tegra/zImage
  $ sudo cp ~/Downloads/extlinux.conf ~Linux_for_Tegra/bootloader/ardbeg/jetson-tk1_extlinux.conf.emmc

4) Get the driver for Sensoray 1012.

  $ sudo cp ~/Downloads/tw6869.ko ~/Linux_for_Tegra/rootfs/lib/modules/3.10.40-gdacac96/extra/tw6869.ko

5) Flash the TK1 (step 3. in Jetson's quick-start guide)

a) Put your target system into "reset recovery mode" by holding down the RECOVERY button and press RESET button once on the target main board.

b) Ensure your Linux host system is connected to the target device through the USB cable for flashing.

  $ cd ~/Linux_for_Tegra/	
  $ sudo ./applybinaries.sh
  $ sudo ./flash.sh jetson-tk1 mmcblk0p1  #This will take less than 10 minutes.

6) from the TK1 load the Sensoray driver.

  $ sudo depmod /lib/modules/3.10.40-gdacac96/extra/tw6869.ko
  $ sudo insmod /lib/modules/3.10.40-gdacac96/extra/tw6869.ko

8) Restart with Sensoray 1012 attached

  $ sudo reboot

7) MPlayer is used by the demo

  $ sudo apt-add-repository universe	
  $ sudo apt-get update
  $ sudo apt-get install libasound2-dev zlib1g-dev libxv-dev
  $ sudo apt-get install mplayer mencoder

8) Run the demo

  $ wget http://www.sensoray.com/downloads/sdk_812_linux_1.1.9.zip
  $ unzip sdk_812_linux_1.1.9.zip
  password:<not included in this doc>
  $ ~/sdk_812_1.1.9_linux/demo-sample/PyGTK/demoSX12.py

Installing a modified kernel from TK1

Get the modified zImage extlinux.conf and TW68-core.c files for nVIDIA Tegra K1 and put them in Downloads folder

Install kernel modifications

  $ sudo cp ~/Downloads/zImage ~/boot/zImage
  $ sudo cp ~/Downloads/extlinux.conf ~/boot/extlinux/extlinux.conf

Get Mplayer for the demo

Add universe repository

  $ sudo gedit /etc/apt/sources.list

Uncomment the universe repository lines

deb http://ports.ubuntu.com/ubuntu-ports / trusty universe
deb-src http://ports.ubuntu.com/ubuntu-ports / trusty universe
deb http://ports.ubuntu.com/ubuntu-ports / trusty-updates universe
deb-src http://ports.ubuntu.com/ubuntu-ports / trusty-updates universe

Save and exit

Install dependencies

  $ sudo apt-get update
  $ sudo apt-get install libasound2-dev zlib1g-dev libxv-dev	

Install MPlayer

  $ cd ~/	
  $ wget http://mplayerhq.hu/MPlayer/releases/MPlayer-1.2.tar.xz
  $ tar xf ~/Mplayer-1.2.tar.xz
  $ cd ~/Mplayer-1.2
  $ ./configure
  $ make -j4
  $ sudo make install

Get the driver for Sensoray 1012.

Version 1.1.9 from Sensoray

  $ cd ~/
  $ wget http://sensoray.com/downloads/sdk_812_linux_1.1.9.zip
  $ unzip sdk_812_linux_1.1.9.zip
  password: <not included in this doc>
  $ cd /usr/src/linux-headers-3.10.40-gdacac96
  $ sudo make modules_prepare

Use the modified code for TK1

  $ cp ~/Downloads/TW68-core.c ~/sdk_812_1.1.9_linux/driver/vbuf2/TW6-core.c

Load the driver

  $ cd ~/sdk_812_1.1.9_linux/driver/vbuf2	
  $ make	
  $ sudo make install
  $ sudo make load

Restart with the 1012 attached

  $ sudo reboot

Run the demo

  $ cd ~/
  $ ~/sdk_812_1.1.9_linux/demo-sample/PyGTK/demoSX12.py

Compiling the kernel modifications

Get the source of the kernel being used.

  $ wget http://developer.download.nvidia.com/embedded/L4T/r21_Release_v4.0/source/kernel_src.tbz2
  $ tar xf kernel.src.tbz2
  $ zcat /proc/config.gz > ~/kernel/.config

Add universe repository for dependencies

  $ sudo gedit /etc/apt/sources.list

Uncomment the universe repository lines

deb http://ports.ubuntu.com/ubuntu-ports / trusty universe
deb-src http://ports.ubuntu.com/ubuntu-ports / trusty universe
deb http://ports.ubuntu.com/ubuntu-ports / trusty-updates universe
deb-src http://ports.ubuntu.com/ubuntu-ports / trusty-updates universe

Save and exit

Make changes to the kernel configuration

  $ sudo apt-get update
  $ sudo apt-get install libncurses5-dev
  $ cd ~/kernel
  $ make menuconfig

Set Contiguous Memory Allocation to 64Mb

in menuconfig "y" turns a entry on <enter> goes into sub menus

<esc><esc> gets out of sub menus

"-gdacac96" is the local version of R21.4

 			General setup <enter>
 				Local version <enter> -gdacac96<enter>
 				<esc><esc>
 			Device Drivers <enter>
 				Generic Driver Options <enter>
 					Size in Mega Bytes <enter> 64 <enter>
 					<esc><esc> 
 				<esc><esc>
 			<esc><esc>

Save and exit

Increase coherent memory pool

  $ sudo gedit /boot/extlinux/extlinux.cof

Add to the end of the last line

  coherent_pool=32M

Save and exit

Install the changes to the kernel

  $ make -j4
  $ make modules
  $ sudo make modules_install
  $ sudo cp ~/kernel/arch/arm/boot/zImage /boot/zImage

Get Mplayer for the demo

  $ sudo apt-get install libasound2-dev zlib1g-dev libxv-dev
  $ cd ~/
  $ wget http://mplayerhq.hu/MPlayer/releases/MPlayer-1.2.tar.xz
  $ tar xf ~/Mplayer-1.2.tar.xz
  $ cd ~/Mplayer-1.2
  $ ./configure
  $ make -j4
  $ sudo make install

Get the driver for Sensoray 1012. version 1.1.9 needs to be modified to work on TK1

  $ cd ~/
  $ wget http://sensoray.com/downloads/sdk_812_linux_1.1.9.zip
  $ unzip sdk_812_linux_1.1.9.zip
  password: <not included in this doc>
  $ cd /usr/src/linux-headers-3.10.40-gdacac96
  $ sudo make modules_prepare
  $ cd ~/sdk_812_1.1.9_linux/driver/vbuf2
  $ cp ~/Downloads/TW68-core.c ./TW68-core.c

Load the driver

  $ make	
  $ sudo make install
  $ sudo make load

Restart with the 1012 attached

  $ sudo reboot

Run the demo

 $ cd ~/
 $ ~/sdk_812_1.1.9_linux/demo-sample/PyGTK/demoSX12.py