Raspberry Pi 2 Model B note

Raspberry Pi 2 Model B note

RaspberryPi2 Ubuntu 14.04 LTS

下載.img檔案

Windows 環境利用SDFormatter將MicroSD格式化後，使用Win32DiskImager燒到MicroSD卡上


Raspberry Pi 2 Model B Serial Console



Reference：
https://wiki.ubuntu.com/ARM/RaspberryPi

http://yehnan.blogspot.tw/2013/09/raspberry-pi.html

http://www.raspberrypi.com.tw/1999/connect-to-raspberry-pi-via-serial/

http://elinux.org/R-Pi_configuration_file

https://www.kernel.org/doc/Documentation/kernel-parameters.txt

Beaglebone Black serial console

Beaglebone Black serial console


USB->TTL(FTDI FT232RL)

http://goods.ruten.com.tw/item/show?21106121243474

Driver:http://www.ftdichip.com/Drivers/CDM/CDM%20v2.10.00%20WHQL%20Certified.zip

(http://www.ftdichip.com/Drivers/VCP.htm)

Gnd->J1

RX->Pin4

TX->Pin5


But for me

Gnd->J1

RX->Pin5

TX->Pin4

Maybe TTL mark is wrong

Putty setting

Reference:http://dave.cheney.net/2013/09/22/two-point-five-ways-to-access-the-serial-console-on-your-beaglebone-black

Debian 設定

Debian 設定

[Debian]修改時區及設定時間

dpkg-reconfigure tzdata

Asia->Taipei

ntpdate time.stdtime.gov.tw

Reference:http://blog.johnsonlu.org/linuxdebian-%E4%BF%AE%E6%94%B9%E6%99%82%E5%8D%80/

Beaglebone Black Flash Recommended Debian Images(BeagleBoard.org)

Beaglebone Black Flash Recommended Debian Images(BeagleBoard.org)

1.Download image file from BeagleBoard.org

   http://beagleboard.org/latest-images

2.Unzip and using Win32 Disk Imager to write image to MicroSD

3.In /boot/uEnv.txt:

##enable BBB: eMMC Flasher:

#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

Chang to:(remove the #)

##enable BBB: eMMC Flasher:

cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

  

In linux you must has root permission

sudo gedit /(your path)/boot/uEnv.txt

4.Put the MicroSD to the Beaglebone Black, hold down the S2 button and apply power.After the LED all on , you can release S2 button, and the program start erasing the flash.

5.When flash was finished, the Beaglebone Bleack will turn off. Take your MicroSD off and apply power again.

Reference:http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

                 http://beagleboard.org/getting-started#update

BBB BB-xm 常用連結

BBB BB-xm 常用連結

All series

BeagleBoardDebian

http://elinux.org/BeagleBoardDebian

BeagleBoardUbuntu

http://elinux.org/BeagleBoardUbuntu

BBB

Beagleboard:BeagleBoneBlack

http://elinux.org/Beagleboard:BeagleBoneBlack

BeagleBone Community

http://elinux.org/BeagleBone_Community

Beagleboard:BeagleBoneBlack Debian

http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

BB-xm

Beagleboard:BeagleBoard-xM

http://elinux.org/Beagleboard:BeagleBoard-xM

BeagleBoard Community

http://elinux.org/BeagleBoard_Community

Beagleboard:Ubuntu On BeagleBone Black

http://elinux.org/Beagleboard:Ubuntu_On_BeagleBone_Black

Beagleboard:Terminal Shells

http://elinux.org/Beagleboard:Terminal_Shells

BBB BB-xm note

150418 note

於BBB上安裝Ubuntu Precise 12.04.4 LTS

http://www.armhf.com/boards/beaglebone-black/


BBB HDMI顯示有問題，無法顯示，但確定有安裝成功



BBB 接Terminal
http://elinux.org/Beagleboard:Terminal_Shells

1.TTL，需購買USB->TTL接板子

2.網路->SSH連線

3.USB連接電腦，走192.168.7.2





於BB-xm安裝Ubuntu Precise 12.04.4 LTS

http://ynezz.ibawizard.net/beagleboard/precise/

http://iori.tw/%E5%9C%A8beagleboard-xm%E4%B8%8A%E5%A5%97%E7%94%A8pre-built-imageandroid-2-3-44-0-1%E8%88%87ubuntu-12-04/

(無法安裝，網站資料已刪除)



Ubuntu Precise

安裝後並無GUI介面

安裝 ubuntu GUI介面(sudo apt-get install ubuntu-desktop)，BBB會跑不動，要使用較輕量化的


Ubuntu Precise 12.04
安裝xubuntu 可用，順暢度還ok


Ubuntu Precise 14.04
GUI介面

Ubuntu Unity Desktop(會當機(?))
http://www.htpcbeginner.com/install-gui-on-ubuntu-server-14-04-gnome/

Gnome classical(安裝後無法開啟(?))
http://muzi.info/2014/1115/install-gnome-classic-desktop-in-ubuntu-14-04.html


Debian

BeagleBoard.org Latest Firmware Images
http://beagleboard.org/latest-images


Beagleboard:BeagleBoneBlack Debian
http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

使用Jessie Snapshot lxqt
Flasher: (lxqt-4gb) (BeagleBone Black 4GB eMMC)
介面太簡潔，無內建網路功能


BBB SPI

Enable sSPI0

In echo BB-SPI0-01 > /sys/devices/bone_capemgr.*/slots

Permission denied

solved:using sudo -i and go echo BB-SPI0-01 > /sys/devices/bone_capemgr.*/slots

Don't using sudo echo BB-SPI0-01 > /sys/devices/bone_capemgr.*/slots

--ls -al /dev/spidev

已出現，但重開機後消失

uEnv.txt 增加的指令未執行 (optargs=quiet drm.debug=7 capemgr.enable_partno=BB-SPI0-01)

log訊息顯示HDMI依然與SPI0衝突(?)

My Computer>BeagleBone Getting Started>uEnv.txt

未出現

http://elinux.org/BeagleBone_Black_Enable_SPIDEV

http://hipstercircuits.com/enable-spi-with-device-tree-on-beaglebone-black-copy-paste/

http://www.searchalleasy.com/questions/17707987/beaglebone-linux-issues-appending-a-line-to-a-file

http://www.zephyr-labs.com/?page_id=98

https://learn.adafruit.com/setting-up-io-python-library-on-beaglebone-black/spi

http://emplearn.blogspot.tw/2014/11/beaglebone-black-spi-use.html


BB-xm SPI

http://www.brianhensley.net/2012/02/spi-working-on-beagleboard-xm-rev-c.html

http://linuxdeveloper.blogspot.tw/2011/10/enabling-spi-on-beagleboard-xm.html