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| − | If you have '''successfully completed the [[Getting Started with IGEP0020 board|getting started guide]]''' for IGEP0020, you can follow this first introduction about what can you do with this board:
| + | #REDIRECT:[[What can I do with IGEPv2]] |
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| − | = How to boot your IGEP0020 board<br> =
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| − | First of all, you may want to boot your board. IGEP0020 can boot from the next devices (listed by priority):
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| − | *from a MMC/microSD card ([[How to boot from MicroSD Card|here]] is a complete tutorial about how to set it up)<br>
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| − | *from OneNAND memory.
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| − | <br>
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| − | The IGEP0020 board boot process is divided in '''2 booting phases''':<br>
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| − | #[[The IGEP X-loader|IGEP xloader]] boot process (It's not possible to interact with the board). | |
| − | #[[The Linux kernel|Linux Kernel]] starting process (It's possible to interact with the board using the console when the kernel has already started).<br>
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| − | = How to set up and log in<br> =
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| − | IGEP0020 board uses the serial debug for output all debug information and the users can interact with the board.
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| − | The IGEP0020 Serial debug console can be accessed on [http://www.igep.es/index.php?option=com_content&view=article&id=99&Itemid=112&dir=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2%2FHW_User_Manuals&download_file=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2%2FHW_User_Manuals%2FMAN-PR-IGEP.0020-001.21.HW_Manual_RC_v1.21.pdf J960 connector] and you should use a [http://igep-platform.com/shop/index.php?main_page=product_info&cPath=1&products_id=8&zenid=701aa01925001b84ed070559d8ac0851 DBM9 to IDC-10 adapter] for connecting it to the host PC.<br> Read [[How to setup the IDC10 cable|how to setup IDC-10 adapter]], to prepare your serial adapter.
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| − | Now you are ready to login. You can do it via:
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| − | *'''Serial Console''': [[Using serial debug port to communicate|here]] is an explanation about how to correctly configure your Serial Console<br>
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| − | *'''SSH''': [[Using SSH to communicate|here]] is an explanation about how to login via Ethernet or USB
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| − | The default login user is: '''root'''
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| − | There is '''no password''' for this user.
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| − | = How to handle the gpio-LED's<br> =
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| − | This is probably the most simple feature in the board, but sometimes LED's may be the only way of checking the status of some of your applications.
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| − | IGEP0020 has 4 LED's which you can control, for example, using 'echo'. Here is an example of turning LED's On:
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| − | <pre>echo 1 > /sys/devices/platform/leds-gpio/leds/d240\:green/brightness
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| − | echo 1 > /sys/devices/platform/leds-gpio/leds/d240\:red/brightness
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| − | echo 1 > /sys/devices/platform/leds-gpio/leds/d440\:green/brightness
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| − | echo 1 > /sys/devices/platform/leds-gpio/leds/d440\:red/brightness
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| − | </pre>
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| − | You can turn them down using the same command and write '0' instead of '1'.
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| − | If you want to trigger the leds you can enable this mode and select the trigger source (none by default) to: mmc0, mmc1, timer, heartbeat and default-on.<br>
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| − | To enable any of this modes you just have to change a parameter in the directory of the led you want to control. You can see all the possibilities using 'cat':<br>
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| − | <pre>$ cat /sys/devices/platform/leds-gpio/leds/d240\:green/trigger
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| − | [none] mmc0 mmc1 timer heartbeat default-on
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| − | </pre>
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| − | In the example above, we have checked the status of the trigger in led D240:green. Mode 'none' is selected.
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| − | To change it, for example, to the timer mode you can use 'echo':<br>
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| − | <pre>echo timer > /sys/devices/platform/leds-gpio/leds/d240\:green/trigger
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| − | </pre>
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| − | In this case, we have set the trigger to the 'timer' mode. Now you can set the time for what the led is ON and the time it is OFF using:<br>
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| − | <pre>echo 250 > /sys/devices/platform/leds-gpio/leds/d240\:green/delay_on
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| − | echo 750 > /sys/devices/platform/leds-gpio/leds/d240\:green/delay_off
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| − | </pre>
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| − | Now the selected led is configured with a timer consisting of 250 miliseconds ON and 750 miliseconds OFF.
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| − | = How to use RS-485 =
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| − | Follow the link to the extensive article: [[How_to_use_RS485_on_IGEP0020_board|How to use RS-485 on IGEP0020 board]]
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| − | = How to get sound out (audio out) =
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| − | The amplifiers for the headset output are disabled by default, so the first thing you'll do is enable these amplifiers with
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| − | amixer set -D hw:0 'Headset' 0dB
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| − | amixer set -D hw:0 'HeadsetL Mixer AudioL2' on
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| − | amixer set -D hw:0 'HeadsetR Mixer AudioR2' on
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| − | Then you can easily play a wav sound, for example
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| − | aplay sample.wav
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| − | = How to get sound in (audio in) =
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| − | You can record audio in with
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| − | arecord -t wav -c 2 -r 44100 -f S16_LE -v audio-in.wav
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| − | Following output is expected on console
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| − | Recording WAVE 'audio-in.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
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| − | Plug PCM: Hardware PCM card 0 'TWL4030' device 0 subdevice 0
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| − | Its setup is:
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| − | stream : CAPTURE
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| − | access : RW_INTERLEAVED
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| − | format : S16_LE
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| − | subformat : STD
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| − | channels : 2
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| − | rate : 44100
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| − | exact rate : 44100 (44100/1)
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| − | msbits : 16
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| − | buffer_size : 32768
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| − | period_size : 2048
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| − | period_time : 46439
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| − | tick_time : 7812
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| − | tstamp_mode : NONE
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| − | period_step : 1
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| − | sleep_min : 0
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| − | avail_min : 2048
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| − | xfer_align : 2048
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| − | start_threshold : 1
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| − | stop_threshold : 32768
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| − | silence_threshold: 0
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| − | silence_size : 0
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| − | boundary : 1073741824
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| − | When ever you think you want to stop just press CONTRL+C
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| − | [[Category:IGEP0020]]
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| − | [[Category:Tutorials]]
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