COM AM35 Linux

Debian system

Calibrating the touchscreen

$ TSLIB_TSDEVICE=/dev/input/event0 ts_calibrate

Running example Qt Apps

Run demos with touch-screen as input device:

$ QWS_MOUSE_PROTO=Tslib:/dev/input/event0 /usr/qt/demos/demoname/demoname -qws
For the Qt-Browser change demoname to browser

Run demos with a usb-mouse as input device:

$ QWS_MOUSE_PROTO=Auto:/dev/input/mice /usr/qt/demos/demoname/demoname -qws

Login/Shutdown system

Login:
  Name:     root
  password: foo

Shutdown:
  $ shutdown -h now

How to control the GPIOs

DHCOM Name:	alt. DHCOM Name:	SO-DIMM Pin#	Linux <GPIO#>
GPIO A		154	116
GPIO B		156	117
GPIO C		162	118
GPIO D		163	119
GPIO E		164	125
GPIO F		165	140
GPIO G		167	141
GPIO H		173	155
GPIO I		175	152
CIF HSYNC	GPIO J	74	96
CIF PCLK	GPIO K	72	94
CIF MCLK	GPIO L	70	58
CIF VSYNC	GPIO M	68	97
CIF D9	GPIO N	66	98
CIF D8	GPIO O	64	95
CIF D7	GPIO P	62	106
CIF D6	GPIO Q	60	105
CIF D5	GPIO R	58	104
CIF D4	GPIO S	56	103
CIF D3	GPIO T	54	102
CIF D2	GPIO U	52	101
CIF D1	GPIO V	50	100
CIF D0	GPIO W	48	99

Export

echo <GPIO#> >/sys/class/gpio/export

-> Remark: Have a look into /sys/class/gpio/ for already configured gpios.

Set direction

echo in >/sys/class/gpio/gpio<GPIO#>/direction

echo out >/sys/class/gpio/gpio<GPIO#>/direction

Set state

echo 0 >/sys/class/gpio/gpio<GPIO#>/value

echo 1 >/sys/class/gpio/gpio<GPIO#>/value

Initialize and test CAN

Initialize:
  $ ip link set can0 up type can bitrate 500000

Send test message via cansend (part of can-utils):
  $ cansend can0 100#11.2233.44556677.88