__TOC__= Overview =
This is the 2/3 chapter of the Getting Started with IGEPv2 Tutorial Guide.
= Overview =In this second chapter, we will learn some basics tasks. Upon completion, you will be ready to continue with chapter 3/3 that explains more advanced tasks.
This is the 2/3 chapter of IGEPv2 Tutorial Guide.
We will learn some basic tasks such to send a file between IGEPv2 and your PC , handle the IGEPv2 Leds, update the pre-installed software to the latest release, etc.__TOC__
= What can I do =
== Handle You must logged in the gpio-LED's =={{#lst:How to handle the gpio-LED|IGEPv2}}board.
== Update your pre-installed software How to use serial console ==
=== Overview ===Connect a serial (COM port) cable (known as the AT/Everex Cable) to the 10-pin header J960 on the board. Now you need a Null-Modem DB9 male-make serial cable. Connect the cable between the board and your PC. Open the serial on your PC using your preferred serial communications program (minicom) and configure the port as follows:
# Download the latest firmware''' into an external computer* 115200# Uncompress the downloaded file* 8N1# Create a MicroSD card in your external computer# Plug the MicroSD card to IGEPv2 and boot from it.* no flow control (either software or hardware)
=== Requirements ===Open the serial port and the debug shell prompt should appear.
* a '''microSD card'''* a '''computer''' with microSD card reader (or with adapter)* a '''GNU/Linux distribution installed''' A detailed guide on the computer (a Linux partition or a virtual machine on Windows)** the main reason is that Windows does not detect multiple partitions on a microSD cardhow to connect via serial debug port can be found by following this link: [[Using serial debug port to communicate]]
=== Basic =Handle the GPIO-LEDS ==
We are now going to update the pre-installed software to the latest versionThe board has two user bicolor (green/red) leds available that can be controlled.In its simplest form, you can control of LEDs fromuserspace. LEDs appear in /sys/class/leds/ and you can turn on and off with following commands:
{{#lst $ echo 0 > /sys/class/leds/d240\:How to create a SD-card with the latest software image|IGEPv2}}green/brightness
$ echo 1 > /sys/class/leds/d240\:red/brightness
$ echo 0 > /sys/class/leds/d240\:red/brightness
== Flash the latest software image == $ echo 1 > /sys/class/leds/d440\:green/brightness $ echo 1 > /sys/class/leds/d440\:red/brightness
{{A detailed guide on how use GPIO-LEDS can be found by following this link:[[How to flash handle the latest software image}}gpio-LED]]
== Handle generic GPIO ==
See [[How_to_use_GPIOs|GPIOs HOWTO]] to know details about that.
Quick example could be:
<pre>echo 156 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio156/direction
echo 0 > /sys/class/gpio/gpio156/value</pre>
''' Know more '''<pre>echo 157 > /sys/class/gpio/export echo in > /sys/class/gpio/gpio157/directioncat /sys/class/gpio/gpio157/value</pre>
IGEPv2 can run many other software distributions. Check the [[:Category:Software distributions]] == How to learn how to install other distributions.use UART1 (RS232) ==
== Basic instructions =={{#lst:Basic Software instructionsThe board has another UART available on J960 connector (UART1). This UART is shared with RS485 so it's incompatible use both interfaces at the same time. For that reason to use UART1 for RS232 comunications you should disable RS485 interface. You can do this [[How_do_I_edit_my_kernel_command_line |bash}}adding following kernel cmdline parameter]]
board.ei485== Mount a MicroSD card ==no
''' Basic '''Now, you can connect the serial AT/Everex Cable to the 10-pin header J960 on the board. In that case the first pin of the AT/Everex Cable (red) should be connected to the pin number 10 of the header J960. You also need a Null-Modem DB9 male-make serial cable. Connect the cable between the target board and your PC.
Log into IGEPv2 Open the serial port on your PC using your preferred serial communications program (minicom) and run any of configure the following commandsport as follows:
* Access to Generic FAT32 microSD:115200* 8N1* no flow control (either software or hardware)
mount -t vfat /dev/mmcblk0 /mnt/tmp/On the target board open a serial port as follows:
* Access to Generic USB Flash disk: $ microcom -s 115200 /dev/ttyS0
mount -t vfat /dev/sda1 /mnt/tmp/Now when you write a character in you PC serial port, the character should appear in the target board.
* Safety Remove microSDA detailed guide on how use UARTS can be found by following this link:[[How to use UARTs]]
== How to use RS-485 umount /mnt/tmp==
* Access {{#lst:How to IGEP demo microSDuse RS485|overview}}A detailed guide on how use UARTS can be found by following this link:[[How to use RS485]]
mount -t jffs2 /dev/mmcblk0 /mnt/tmp/== Get sound in (audio in) ==
== How to use RS-485 == Follow External Audio input devices, such as a powered microphone or the link audio output of a PC or MP3 player, can be connected to the extensive article: [[How_to_use_RS485_on_IGEP0020_board|How to use RS-485 on IGEPv2 board]]via a 3.5mm jack (Audio IN).
Note that the board has been designed to use Line In for the audio input which means users need to add some type of pre-amp for a microphone to work or use a powered microphone. For a pre-amp for a microphone you can use MAX9812.
== Get sound in (audio in) ==Enable capture:
<pre>amixer -c 0 sset 'Analog Right AUXR'capamixer -c 0 sset ' Basic ''Analog Left AUXL'cap </pre>
External Audio input devices, such as a powered microphone or You can record audio in with the audio output of a PC or MP3 playerapplication arecord, can be connected to the via a 3.5mm jack (Audio IN).for example:
You can record audio in with the application Arecord, for example: <pre>arecord -t wav -c 2 -r 44100 -f S16_LE -v audio-in.wav</pre>
Following output is expected on console:
boundary : 1073741824
When ever you think you want to stop recording just press CTRL+C
== Get sound out (audio out) ==
''' Basic ''' Connect an '''external output audio device''' to the 3.5mm jack Audio Out connector in IGEPv2the board, such as external stereo powered speakers.
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 with the application Aplay, for example:
$ aplay audio-in.wav
== How to use wifi ==
== Connect If you have a wireless network adapter in your computer you can also connect to the Serial Debug interface ==board using the ad hoc network connection that the firmware configures byu default.
''' Basic '''Use your wireless manager to connect to the wireless network called in the form
[[Image:DSC 0177.JPG|thumb|550px|right|AT/Everex Cable connected to the 10-pin serial header on IGEPv2]] IGEP_xx
In After connecting, a DHCP IP address should be adquired. Now you can access, for example with ssh, to the preinstalled software, target board connecting to the serial port is configured as a '''Debug interface'''192.168.7.1 address.
Therefore, if you connect an external device to the serial port you will be able to see the '''Linux Kernel traces''', as the system boots $ ssh root@192.168.6.1
A detailed guide on how use wifi can be found by following this link: [[Using IGEP WLAN to communicate]]
Follow these steps:== How to use bluetooth ==
* Connect an '''AT/Everex Cable''' to the '''10-pin serial header''' A detailed guide on IGEPv2 and a '''how use bluetooth can be found by following this link: [[http://en.wikipedia.org/wiki/Null_modem null modemHow to setup Marvell bluetooth]] DB9 male-male''' serial cable between the board and your host machine.
* Refer to the article: '''[[How_to_setup_the_IDC10_cable|== How to setup the IDC10 cable]]''' to setup use the IDC10 cable.SD card ==
* You can also use connect a Serial port micro SD card for storage. After plugin the SD card the kernel should detect the card and automount in your host machine you might need a '''USB to Serial converter''' to communicate via this port/media directory.
* Run a serial console, or any program that can interact with == How to use the serial port in your host machine, such Minicom, PuTTy (Linux, Windows), Terminal (Windows), etc.USB OTG ==
* Refer In order to this extended article about '''[[Using serial debug act in host mode and add some peripherals like keyboard, mouse or pendrives you require a special cable that grounds the ID pin. Since the OTG port to communicate]]''' to setup the right configuration only provides 100mA of your serial consolepower a USB hub is recommended.
Though a common USB Standard-A to Mini-B type cable the port acts as a device. In this mode you can connect to the board using the USB Ethernet Gadget. Use this cable between your computer and the target board and connect with:
Now, as you are connected to the '''serial debug port''', you will see the system traces as the board is starting up $ ssh root@192. Finally you will see the boot prompt asking for login168. [[Image:Poky-prompt-screenshot7.png|thumb|550px|center|IGEPv2 Serial Debug interface prompt]]1
A detailed guide on how use wifi can be found by following this link: [[Using USB ethernet gadget to communicate]]
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[[Category:IGEP Technology Devices Guides]]
