Difference between revisions of "What can I do with IGEP0022"
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= Using Telit Modem = | = Using Telit Modem = | ||
| − | The IGEP0022 expansion board provides a Telit [http://telit.com/en/products/gsm-gprs.php?p_ac=show&p=47 GE865] | + | 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> |
Here you have the official manuals from the manufacturer's webpage:<br> | Here you have the official manuals from the manufacturer's webpage:<br> | ||
| Line 84: | Line 84: | ||
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: | 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: | ||
<pre>microcom -s 115200 /dev/ttyS1 # GE865 has auto baud rate detection, so you can use a different speed | <pre>microcom -s 115200 /dev/ttyS1 # GE865 has auto baud rate detection, so you can use a different speed | ||
| − | </pre> | + | </pre> |
| − | You can check the list of all operations at the manufacturer [http://telit.com/module/infopool/download.php?id=522 software user guide]. Here there is an example of a simple phone call<br> | + | You can check the list of all operations at the manufacturer [http://telit.com/module/infopool/download.php?id=522 software user guide]. Here there is an example of a simple phone call<br> |
<pre>at | <pre>at | ||
at+cpin=<PIN> | at+cpin=<PIN> | ||
atd <number> | atd <number> | ||
| − | </pre> | + | </pre> |
<work in progress><br> | <work in progress><br> | ||
Revision as of 00:25, 6 July 2011
(work in progress)
Contents
How to enable IGEP0022 support
The required kernel command line option here is
buddy=igep0022
Getting VGA output
The required kernel command line option here is omapfb.mode followed by the desired resolution, make sure to select a video mode compatible with your monitor
For example:
omapdss.def_disp=dvi omapfb.mode=dvi:1024x768-16@60
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.
Using TFT and Touchscreen
Seiko 7.0 inch WVGA (800 x RGB x 480) TFT:
omapdss.def_disp=lcd-70
Powertip 4.3 inch (480 x RGB x 272) TFT:
omapdss.def_disp=lcd-43
To configure the touchscreen, add "Configured Touchscreen" in "ServerLayout" section and remove "Configured Mouse"
Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" InputDevice "Generic Keyboard" # InputDevice "Configured Mouse" InputDevice "Configured Touchscreen" Option "AllowEmptyInput" "no" EndSection
calibrate it yourself until you are happy with the result, for example:
/etc/init.d/xserver-nodm stop TSLIB_CALIBFILE=/etc/pointercal TSLIB_TSDEVICE=/dev/input/touchscreen0 TSLIB_CONSOLEDEVICE=none ts_calibrate /etc/init.d/xserver-nodm start
Using Telit Modem
The IGEP0022 expansion board provides a Telit GE865 GSM/GPRS modem which is connected to the OMAP via some GPIO pins and UART 2.
Here you have the official manuals from the manufacturer's webpage:
Here there are a few instructions in order to introduce the Telit modem:
Enable Telit Modem support
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 :
buddy.modem=yes
Power Up
The manufacturer hardware user guide explains the complete sequence to power up the modem.
The modem is connected to 3 GPIO pins from the OMAP, which are: <omap_pin_name (modem_function)>
- GPIO_140 (Reset)
- GPIO_141 (On_Off)
- GPIO_157 (PWRMON)
You can power up your modem using the following sequence:
(Note: instructions are correctly 'toggled' do to pull-up resistors)
echo 0 > /sys/class/gpio/gpio140/value # Sets to '1' the modem Reset pin echo 1 > /sys/class/gpio/gpio141/value # Sets to '0' the modem On_Off pin sleep 1 echo 0 > /sys/class/gpio/gpio141/value # Sets to '1' the modem On_Off pin
Making a phone call
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:
microcom -s 115200 /dev/ttyS1 # GE865 has auto baud rate detection, so you can use a different speed
You can check the list of all operations at the manufacturer software user guide. Here there is an example of a simple phone call
at at+cpin=<PIN> atd <number>
<work in progress>
Using TVP5151 Video Decoder
Using EEPROM
The IGEP0022 expansion board provides an AT24C01B serial EEPROM memory which is connected to the OMAP via I2C.
You can use easily simple reads/writes to access to the eeprom:
echo "hello world!" > /sys/devices/platform/i2c_omap.2/i2c-2/2-0050/eeprom cat /sys/devices/platform/i2c_omap.2/i2c-2/2-0050/eeprom
Or read/write from userspace using i2c-tools:
i2cget <bus> <chip> <register> i2cset <bus> <chip> <register> <value>
For example, the following writes the value 0x22 to register 0x10 of device 0x50 on i2c bus 2:
i2cset -f -y 2 0x50 0x10 0x22 i2cget -f -y 2 0x50 0x10
See also: i2dump(8), i2cget(8) and i2cset(8) man page
Using CAN bus
Several tools are provided by socketCAN:
- candump: dump traffic on a CAN network
- cansend: simple command line tool to send CAN-frames via CAN_RAW sockets
- cangen: CAN frames generator for testing purpose
- canplayer: send CAN frames from a file to a CAN interface
/sbin/ip link set can0 up type can bitrate 125000
On the receiver side:
candump can0
On the sender side:
cansend can0 123#AABBCCDD cansend can0 123#R cansend can0 1F334455#1122334455667788 cansend can0 1F334455#R
On the receiver side, you must see the following messages:
can0 123 [4] AA BB CC DD can0 123 [0] remote request can0 1F334455 [8] 11 22 33 44 55 66 77 88 can0 1F334455 [0] remote request
Switch roles and do again
