Difference between revisions of "What can I do with IGEP BERLIN"

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If you have '''successfully completed the [[Getting_Started_with_BASE0010_board|getting started guide]]''' for BASE0010, you can follow this first introduction about what can you do with this board:
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{| cellspacing="0" cellpadding="5" border="1" align="center" width="100%" style="text-align: left;"
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|-
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| bgcolor="#cccccc" |'''What can I do with IGEP BERLIN'''
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|-
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| If you have '''successfully completed the [[{{#lst:Template:Links|IGEP_BERLIN_Community_Guides_1}}|first chapter of this guide]]''', you can continue with this tutorial guide about IGEP BERLIN.
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|}
  
  
= How to get DVI output  =
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{{Navigation/IGEP Technology Guides
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|Name={{#lst:Template:Links|IGEP_BERLIN_Name}}
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|Image={{#lst:Template:Links|IGEP_BERLIN_Image}}
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|ISEE_MainPage={{#lst:Template:Links|IGEP_BERLIN_ISEE_MainPage}}
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|ISEE_Hardware={{#lst:Template:Links|IGEP_BERLIN_ISEE_Hardware}}
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|Community_MainPage={{#lst:Template:Links|IGEP_BERLIN_Community_MainPage}}
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|Community_Guides_1={{#lst:Template:Links|IGEP_BERLIN_Community_Guides_1}}
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|Community_Guides_2={{#lst:Template:Links|IGEP_BERLIN_Community_Guides_2}}
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}}
  
By default the DVI is outputs 1024 x 768 @ 60Hz, so if your monitor support this resolution you'll see the desktop when board is up.
 
  
Unfortunately the capability to automatically set the display resolution to match your monitor isn't yet available. The simplest method to customize the display resolution is to set it using [[How do I edit my kernel command line | kernel command line]  
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{| cellspacing="0" cellpadding="5" border="1" align="center" style="text-align: left;"
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|-
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| bgcolor="#cccccc" colspan="3" | '''Overview'''
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|-
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| [[Image:{{#lst:Template:Links|IGEP_BERLIN_Image}}|250px|center|link={{#lst:Template:Links|IGEP_BERLIN_Community_MainPage}}]]  
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|-
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|'''Work in progress article. Coming soon!'''
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|}
  
The required arguments use the following pattern: omapfb.mode=<display>:<resolutionMR-bpp@refresh> omapdss.def_disp=<display> where:
 
  
For example:  
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{{Navigation/IGEP Technology Devices Guides/Next Step
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|Name={{#lst:Template:Links|IGEP_BERLIN_Name}}
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|Community_MainPage={{#lst:Template:Links|IGEP_BERLIN_Community_MainPage}}
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|Next_Step={{#lst:Template:Links|IGEP_BERLIN_Community_Guides_2}}
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}}
  
omapdss.def_disp=dvi omapfb.mode=1024x768MR-16@60
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[[Category:IGEP Technology Devices Guides]]
omapdss.def_disp=dvi omapfb.mode=hd720-16@60
 
 
 
See also: [[How do I edit my kernel command line]].
 
 
 
= How to configure ethernet  =
 
 
 
There are two Ethernets on the BASE0010 board which can be used, for example if your access to the internet is via a route you can configure one of them with following command:
 
 
 
ifconfig eth0 up
 
udhcpc -i eth0
 
 
 
For second interface just change the eth0 device for eth1
 
 
 
= How to get sound out (audio out)  =
 
 
 
The amplifiers for the headset output are disabled by default, so the first thing you'll do is enable these amplifiers with
 
 
 
amixer set -D hw:0 'Headset' 0dB
 
amixer set -D hw:0 'HeadsetL Mixer AudioL2' on
 
amixer set -D hw:0 'HeadsetR Mixer AudioR2' on
 
 
 
Then you can easily play a wav sound, for example
 
 
 
aplay sample.wav
 
 
 
= How to get sound in (audio in)  =
 
 
 
You can record audio in with
 
 
 
arecord -t wav -c 2 -r 44100 -f S16_LE -v audio-in.wav
 
 
 
Following output is expected on console
 
 
 
Recording WAVE 'audio-in.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
 
Plug PCM: Hardware PCM card 0 'TWL4030' device 0 subdevice 0
 
Its setup is:
 
stream       : CAPTURE
 
access       : RW_INTERLEAVED
 
format       : S16_LE
 
subformat   : STD
 
channels     : 2
 
rate         : 44100
 
exact rate   : 44100 (44100/1)
 
msbits       : 16
 
buffer_size  : 32768
 
period_size  : 2048
 
period_time  : 46439
 
tick_time   : 7812
 
tstamp_mode  : NONE
 
period_step  : 1
 
sleep_min   : 0
 
avail_min   : 2048
 
xfer_align   : 2048
 
start_threshold  : 1
 
stop_threshold   : 32768
 
silence_threshold: 0
 
silence_size : 0
 
boundary     : 1073741824
 
 
 
When ever you think you want to stop just press CONTRL+C
 
 
 
= How to get user button  =
 
 
 
There is one button on the BASE0010 board which can be used by the software for user interaction.
 
 
 
The kernel driver creates a device in /dev/input directory. To access to the button you will use the Linux Input Device subsystem. In Particular evdev, which is a generic input event interface. It passes the events generated in the kernel straight to the program, with timestamps. The event codes are the same on all architectures and are hardware independent.
 
 
 
For example, the test program evtest ([http://beagleboard.googlecode.com/files/evtest.c evtest.c]) listens on the /dev/input/event0 file descriptor, trying to read any events
 
 
 
evtest /dev/input/event0
 
 
 
Input driver version is 1.0.0
 
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
 
Input device name: "gpio-keys"
 
Supported events:
 
  Event type 0 (Sync)
 
  Event type 1 (Key)
 
    Event code 276 (ExtraBtn)
 
Testing ... (interrupt to exit)
 
 
 
If you'll press the button you'll see
 
 
 
Event: time 8354.388305, type 1 (Key), code 276 (ExtraBtn), value 0
 
Event: time 8354.388335, -------------- Report Sync ------------
 
Event: time 8354.573364, type 1 (Key), code 276 (ExtraBtn), value 1
 
Event: time 8354.573364, -------------- Report Sync ------------
 
 
 
For more information please read:  
 
 
 
#linux-2.6/Documentation/input/input.txt
 
#linux-2.6/Documentation/input/input-programming.txt
 
 
 
 
 
{{Navigation/IGEP Technology Guides/What can I do/Ending|device=BASE0010}}
 
 
 
[[Category:BASE0010]]
 
[[Category:Tutorials]]
 

Revision as of 18:46, 20 April 2012


What can I do with IGEP BERLIN
If you have successfully completed the [[Getting started with IGEP BERLIN|first chapter of this guide]], you can continue with this tutorial guide about IGEP BERLIN.


link=IGEP BERLIN
IGEP BERLIN

  • IGEP BERLIN guides:
  1. [[Getting started with IGEP BERLIN|Getting started]]
  2. [[What can I do with IGEP BERLIN|What can I do with IGEP BERLIN]]
  3. Start developing


Overview
link=IGEP BERLIN
Work in progress article. Coming soon!


Continue with this tutorial at: [[What can I do with IGEP BERLIN]]