Cubietruck 安装lubuntu笔记

The tutorial how to use TTL cable: http://linux-sunxi.org/Cubieboard/TTL

Install the tool name minicom in your computer:

  $sudo apt-get install minicom

Set the minicom configuratiaon, TTL and cubieboard are connected ,then minicomin the terminal ,enter into the console.

  $sudo apt-get update
  $sudo apt-get upgrade
  $sudo apt-get install vim build-essential git libusb-1.0-0-dev pkg-config -y

The best way to test hardware is install the office firmware from http://dl.cubieboard.org and usr office fitting fromhttp://docs.cubieboard.org/addons，which can find the problem quickly you met. Of course ,you should save the data before reinstall firmware.

These are blue LED1 meaning heartbeat and green LED2 on cb1 and cb2. LED1 – GPIO port PH21, LED2 – GPIO port PH20.
These are LED1~4 on cb3(cubietruck). LED1 – PH21, LED2 – PH20,LED3 – PH11,LED4 – PH07.Refer to FAQ about cubietruck 
For cb1 and cb2:

  $echo 1 > /sys/class/gpio/export   //open the PH20
  $echo 2 > /sys/class/gpio/export   //open the PH21

The directories /sys/class/gpio/gpio1_PH20 and/sys/class/gpio/gpio2_PH21 had been create .

  $cd /sys/class/gpio /gpio1_PH20
  $echo out > direction    //set PH20 as output
  $echo 1 > value          //set PH20 as high ,grenn LED is light
  $echo 0 > value          //set PH20 as low,turn off the LED

It would be best way connect the HDMI cable before power on the cubieboard,becuse some cable maybe appear the promble of sequence in time.
If your have not full screen display, you can try the following commands

$fbset -left 10

1.If you are using lubuntu, try the following commands

$wget http://dl.cubieboard.org/software/tools/armhf/cb-display-tool
$chmod 777 cb-display-tool
$cb-display-tool -o 8 -m 11  //switch to VGA type
$cb-display-tool -o 4 -m 4  //switch to HDMI type

If you switch to other resolution, you need to restart your X after the modification

2.The default display configuration in script.bin of uboot partition of official desktop-firmware as :

;disp init configuration
;
;disp_mode            (0:screen0<screen0,fb0> 1:screen1<screen1,fb0> 2:two_diff_screen_diff_contents<screen0,screen1,fb0,fb1>
;                      3:two_same_screen_diff_contets<screen0,screen1,fb0> 4:two_diff_screen_same_contents<screen0,screen1,fb0>)
;screenx_output_type  (0:none; 1:lcd; 2:tv; 3:hdmi; 4:vga)
;screenx_output_mode  (used for tv/hdmi output, 0:480i 1:576i 2:480p 3:576p 4:720p50 5:720p60 6:1080i50 7:1080i60 8:1080p24 9:1080p50 10:1080p60 11:pal 14:ntsc)
;screenx_output_mode  (used for vga output, 0:1680*1050 1:1440*900 2:1360*768 3:1280*1024 4:1024*768 5:800*600 6:640*480 10:1920*1080 11:1280*720)
;fbx format           (4:RGB655 5:RGB565 6:RGB556 7:ARGB1555 8:RGBA5551 9:RGB888 10:ARGB8888 12:ARGB4444)
;fbx pixel sequence   (0:ARGB 1:BGRA 2:ABGR 3:RGBA) --- 0 for linux, 2 for android
;lcd0_bright          (lcd0 init bright,the range:[0,256],default:197
;lcd1_bright          (lcd1 init bright,the range:[0,256],default:197

[disp_init]
disp_init_enable = 1
disp_mode = 0
screen0_output_type = 3
screen0_output_mode = 4
screen1_output_type = 0
screen1_output_mode = 4
fb0_width = 1024
fb0_height = 768
fb0_framebuffer_num = 2
fb0_format = 10
fb0_pixel_sequence = 0
fb0_scaler_mode_enable = 0
fb1_width = 1024
fb1_height = 768
fb1_framebuffer_num = 2
fb1_format = 10
fb1_pixel_sequence = 0
fb1_scaler_mode_enable = 0

Modify the parameter according to the using HDMI displayer . You can get more information about display from Display and modify script.bin from edit_the_system_configuration

Refer to HDMI section.

The quickly way to test the interface of USB is plug the U disk . The system will identify the U disk .Use fdisk -l can see its information which meaning the interface of USB is working.

IR had beed add into the kernel .If not, use command to load the moudle:

  $insmnod /lib/modules/3.4.X/kernel/drivers/input/keyboard/sun4i-ir.ko

  $sudo cat /dev/input/event0 | hexdump

Press the key of IR remote control,the terminal will print the message as:

0000000 8415 525f 50cf 0003 0001 0094 0001 0000
0000010 8415 525f 50db 0003 0000 0000 0000 0000
0000020 8415 525f 22f7 0007 0001 0094 0000 0000
0000030 8415 525f 22ff 0007 0000 0000 0000 0000

The digital ‘0094’ is keycode of the remote control .

There are two audio devices HDMI and headphone in the cubieboard.

  $sudo  alsamixer

There are two audio devices named sunxi-sndhdmi and sunxi-CODEC in the system. The sound output is send out from HDMI by default . You can adjust volume and other configuration ,use Ctrl + z to save it.

To set sound care being sunxi-CODEC modify /etc/asound.conf to turn on the headphone.

  pcm.!default {
    type hw
    card 0    //If you want to set HDMI as output ,turn 0 to 1.
    device 0
  }
  ctl.!default {
    type hw
    card 0   //If you want to set HDMI as output ,turn 0 to 1.
  }

If Plug in the headphone and type:

  $speaker-test -twav -c2

The sound “sound left，sound right，sound left” will output from headphone.

Let cubieboard speak by package named espeak :

  $sudo apt-get install espeak
  $espeak "hello"　　          //say: hello
  $espeak "hello_cubieboar"　　//say: hello cubieboard

Most of the camera driver has integrated in the kernel，so it is available insert usb-camera into the cubieboard.

$sudo apt-get install luvcview
$luvcview -s 1080x720 (can modify the resolution)