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| − | (work in progress)
| + | #REDIRECT:[[What can I do with IGEPv2 EXPANSION]] |
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| − | = How to enable IGEP0022 support =
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| − | The required [[How do I edit my kernel command line|kernel command line]] option here is
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| − | buddy=igep0022
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| − | = How to get VGA output =
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| − | The required [[How do I edit my kernel command line|kernel command line]] option here is omapfb.mode followed by the desired resolution, make sure to select a video mode compatible with your monitor
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| − | For example:
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| − | omapdss.def_disp=dvi omapfb.mode=dvi:1024x768-16@60
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| − | Note that you could connect both a VGA monitor and a DVI-D monitor and see the same image, as long as the video mode is compatible with both monitors.
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| − | = How to use TFT and Touchscreen =
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| − | Seiko 7.0 inch WVGA (800 x RGB x 480) TFT:
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| − | omapdss.def_disp=lcd-70
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| − | Powertip 4.3 inch (480 x RGB x 272) TFT:
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| − | omapdss.def_disp=lcd-43
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| − | To configure the touchscreen, add "Configured Touchscreen" in "ServerLayout" section and remove "Configured Mouse"
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| − | Section "ServerLayout"
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| − | Identifier "Default Layout"
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| − | Screen "Default Screen"
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| − | InputDevice "Generic Keyboard"
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| − | # InputDevice "Configured Mouse"
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| − | InputDevice "Configured Touchscreen"
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| − | Option "AllowEmptyInput" "no"
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| − | EndSection
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| − | calibrate it yourself until you are happy with the result, for example:
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| − | /etc/init.d/xserver-nodm stop
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| − | TSLIB_CALIBFILE=/etc/pointercal TSLIB_TSDEVICE=/dev/input/touchscreen0 TSLIB_CONSOLEDEVICE=none ts_calibrate
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| − | /etc/init.d/xserver-nodm start
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| − | = How to use Telit Modem =
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| − | The IGEP0022 expansion board provides a Telit [http://telit.com/en/products/gsm-gprs.php?p_ac=show&p=47 GE865] GSM/GPRS modem which is connected to the OMAP via some GPIO pins and UART 2.<br>
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| − | Here you have the official manuals from the manufacturer's webpage:<br>
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| − | *[http://telit.com/module/infopool/download.php?id=1666 Telit GE865-QUAD Hardware User Guide]<br>
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| − | *[http://telit.com/module/infopool/download.php?id=522 Telit Modules Software User Guide]<br>
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| − | <br>
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| − | Here there are a few instructions in order to introduce the Telit modem.<br>
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| − | If this is your first time accessing Telit Modem, you must add the following line at the kernel file (igep.ini) in order to enable GE865 support :
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| − | <pre>buddy.modem=yes</pre>
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| − | <br>
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| − | Now its time to power up your modem. You may read the official manufacturer [http://telit.com/module/infopool/download.php?id=1666 hardware user guide], where there is a complete explanation about the sequence.<br>
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| − | In IGEP0022, the modem is connected to 3 GPIO pins from the OMAP, which are: <omap_pin_name (modem_function)>
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| − | *GPIO_140 (Reset)
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| − | *GPIO_141 (On_Off)
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| − | *GPIO_156 (PWRMON)<br>
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| − | You can power up your modem using the following sequence:
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| − | (Note: the following instructions are correctly 'toggled' do to pull-up resistors. Refer to schematics at the official [http://igep.es/index.php?option=com_content&view=article&id=99&Itemid=129&dir=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2_EXPANSION%2FHW_Schematics&download_file=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2_EXPANSION%2FHW_Schematics%2FIGEP.0022-EXP_BOARD_SCH_rev_b3.pdf IGEP0022 Hardware Manual] from ISEE)
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| − | <pre>echo 0 > /sys/class/gpio/gpio140/value
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| − | echo 1 > /sys/class/gpio/gpio141/value
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| − | sleep 1
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| − | echo 0 > /sys/class/gpio/gpio141/value
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| − | </pre>
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| − | Once the modem is on, you can interact with it via UART 2. You can use Microcom to comunicate with it from the serial debug console:
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| − | <pre>microcom -s 115200 /dev/ttyS1</pre>
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| − | (Note: GE865 has auto baud rate detection, so you can use a different speed)<br>
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| − | To check the modem status use the command:<br>
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| − | <pre>at</pre>
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| − | Answer should be OK.<br>
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| − | (Note: correcting syntax with 'backspace' may cause error in a serial command if you are not writing the command at first take)
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| − | In order to use your GSM/GPRS you should insert a valid SIM card to the SIM card reader of your IGEP0022 expansion board.
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| − | Now unlock it by inserting your SIM card PIN number. Use the command:<br>
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| − | <pre>at+cpin=<PIN></pre>
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| − | If you correctly inserted the PIN number, the answer should be OK.
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| − | (Note: If you fail more than 3 times, your SIM card will lock and you will have to insert PUK number.)
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| − | Now you are ready to use the GSM/GPS modem.
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| − | == Examples ==
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| − | If you successfully '''followed the the previous instructions''', you are ready to test the GSM/GPRS modem. Here are some examples of simple commands:
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| − | You can check the complete list of AT commands at the official manufacturer [http://telit.com/module/infopool/download.php?id=522 software user guide].
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| − | === Making a phone call<br> ===
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| − | Use the instruction:
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| − | <pre>atd <number_to_call>
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| − | </pre>
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| − | === Sending a SMS<br> ===
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| − | There are so many ways in this modem to send a message. Here you have a simple example. Use the instruction:
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| − | <pre>at+cmgs="<destination_number>"
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| − | > <insert_here_your_text_message>
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| − | </pre>
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| − | When you are ready to send your message use Ctrl+Z to send it.
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| − | If you want to cancel or restart the message press ESC.<br>
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| − | = How to use TVP5151 Video Decoder =
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| − | = How to use EEPROM =
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| − | The IGEP0022 expansion board provides an [http://www.atmel.com/dyn/resources/prod_documents/doc5156.pdf AT24C01B] serial EEPROM memory which is connected to the OMAP via I2C.<br>
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| − | You can use easily simple reads/writes to access to the eeprom:
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| − | echo "hello world!" > /sys/devices/platform/i2c_omap.2/i2c-2/2-0050/eeprom
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| − | cat /sys/devices/platform/i2c_omap.2/i2c-2/2-0050/eeprom
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| − | Or read/write from userspace using i2c-tools:
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| − | i2cget <bus> <chip> <register>
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| − | i2cset <bus> <chip> <register> <value>
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| − | For example, the following writes the value 0x22 to register 0x10 of device 0x50 on i2c bus 2:
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| − | i2cset -f -y 2 0x50 0x10 0x22
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| − | i2cget -f -y 2 0x50 0x10
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| − | See also: i2dump(8), i2cget(8) and i2cset(8) man page
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| − | = Using CAN bus =
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| − | The IGEP0022 expansion board provides a CAN interface using MCP2515.<br>
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| − | Several tools are provided by socketCAN to use this controller:
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| − | *candump: dump traffic on a CAN network.
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| − | *cansend: simple command line tool to send CAN-frames via CAN_RAW sockets.
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| − | *cangen: CAN frames generator for testing purpose.
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| − | *canplayer: send CAN frames from a file to a CAN interface.
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| − | In order to test the CAN interface you can connect IGEP0022 to a CAN device or network or to another IGEP0022 board.<br>
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| − | In the last case, you have to connect the two boards like this:<br>
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| − | pin number) (pin number
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| − | 1) O-----X X-----O (1
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| − | IGEP0022 2) O----------------O (2 IGEP0022
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| − | Board 1 3) O----------------O (3 Board 2
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| − | 4) O----------------O (4
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| − | Now you can set up the interface (on all boards when using multiple IGEP0022 <span lang="en" class="short_text" id="result_box"><span class="hps" title="Click for alternate translations">connected to a CAN network simultaneously)</span></span>:<br>
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| − | /sbin/ip link set can0 up type can bitrate 125000
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| − | If you want to receive CAN data, use:
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| − | candump can0
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| − | If you want to send CAN data, use:
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| − | cansend can0 123#AABBCCDD
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| − | cansend can0 123#R
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| − | cansend can0 1F334455#1122334455667788
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| − | cansend can0 1F334455#R
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| − | On the receiver side, you must see the following messages:
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| − | can0 123 [4] AA BB CC DD
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| − | can0 123 [0] remote request
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| − | can0 1F334455 [8] 11 22 33 44 55 66 77 88
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| − | can0 1F334455 [0] remote request
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| − | Switch roles and try it again
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