viernes, 4 de octubre de 2013

Raspberry Pi - stuff


Raspberry Hardware
Raspberry Pi 1 Model B revision 1.2
Model B - Rev2 aka Rev2 - 512MB RAM


ARM1176JZF-S a 700 MHz (family ARM11)
implements the ARM11 ARM architecture v6. provides support for extensions to ARMv6 

ARM11 single core model B 512MB
3Conector RCA (PAL and NTSC),
HDMI (rev1.3 y 1.4),
gpio pins for B - rev2
61 Interfaz DSI for panel LCD62 63
HDMI Type A



 from a cat /proc/cpuinfo
ARMv6  rev7(v6L)
hardw: BMC2708



Spanish Lesson:
Raspberry Pi y GPIO
http://www.diverteka.com/?p=1370




http://techcrunch.com/2012/10/21/getting-started-with-the-raspberry-pi-is-not-as-easy-as-pie/

Raspberry Pi 3 Model B
Quad-Core, 1.2 GHz, 1 GB RAM, USB 2.0, Bluetooth 4.0, Wi-Fi

BCM2837R1FBG
The Cortex-A53 supports the full ARMv8-A architecture.
It not only runs 64-bit applications also seamlessly and efficiently runs legacy ARM 32-bit applications.

 Combined 3.5mm audio jack and composite video
Camera interface (CSI)
Display interface (DSI)
Micro SD card slot (now push-pull rather than push-push)
VideoCore IV 3D graphics core



Software/Images

Most of raspberry images are based in copy files to SD formated in FAT, and during the 1st boot, original partition is dynamically resized  and new partitions are created.


rpix86 is a PC emulator for the Raspberry Pi
http://rpix86.patrickaalto.com/index.html

 chameleon Pi
 http://chameleon.enging.com/?q=download


Tools:Windows Software
Ms. Windows is not the best environment to work with disks, filesystems etc.. but using the following apps we can do most of the tasks without the need of rebooting a Windows computer.

Win32DiskImager.exe (GPL)
Linux Reader (Diskinternals)
EaseUS Partition Master (EaseUS)

There are better software for Windows\DOS and Linux but at least the previous are gratis



Installation

//Raspbian//
dd
gparted
wifi config


multimedia player GUI for omx player
>>>from https://github.com/KenT2/tboplayer
tboplayer
A GUI interface using jbaiter's pyomxplayer wrapper to control omxplayer

Required pexpect:
wget http://pexpect.sourceforge.net/pexpect-2.3.tar.gz
     tar xzf pexpect-2.3.tar.gz
     cd pexpect-2.3
     sudo python ./setup.py install

Installing tboplayer:
From a terminal window open in your home directory type:
     wget https://github.com/KenT2/tboplayer/tarball/master -O - | tar xz

There should now be a directory 'KenT2-tboplayer-xxxx' in your home directory. Rename the directory to tboplayer

Open the tboplayer directory and from a terminal opened in THIS directory:

    python tboplayer.py

TBOPlayer is developed on Raspbian Wheezy with python 2.7
<<<<

install mp3 player
video
//Raspbmc//

  1. Uncompress downloaded file
  2. Identify SD card device (i.e /dev/mmblkxx) (1)
  3. Format/remove partition from SD card. Disks or Fdisk (2)
  4. Applying image to SD
    •  sudo dd if=/path/sd.img of=/dev/mmcblk0 (3)
    •  /path/ mounter folder where image is placed
  5. Boot Raspberry with SD
    • (Raspbmc will do some actions over SD, Sucha as partition resizing etc)
  6. (optional) From PC, resize/create partitions
    • (i.e with gparted) (4)
    • Create a fat32 partition
    • Copy multimedia to SD

(1) use Disks, dmesg, ...
(2) if there is problem try with a different card reader, usb to SD adaptor,..
(3) Use dd command or restore image from Disks on GUI, wait because it can take sometime and there is not a progress bar
(4) gparted recommended, but other software could done this action

OS
Username: pi. Password: raspberry

login via ssh
raspbmc
 username: root
 password: root
openelec
  username: root
  password: openelec


Some useful links:
technical articles:  http://raspi.tv/


No hay comentarios: