Appendix c, Appendix c: programming the lcm, Programming the lcm – Lanner FW-8893C User Manual

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Programming the LCM

Appendix C

Network Application Platforms

Appendix C:

Programming the LCM

The LCD panel module (LCM) is designed to provide real-

time operating status and configuration information for

the system. For sample LCM code, see LCM foler on the

Driver and Manual CD. The driver and the program library

can also be found in the folder.
The system support USB LCM. The LCM connects to the

motherboard’s USB LCM port.

Jumper Selection for USB and Serial Text or Graphic-

based LCM

Text LCM

1 1 0

Graphic

LCM

1 1 1

Build
To build program source code on Linux platform, use the

following steps as a guideline:

Extract source file:

1.
#tar -xzvf lanner-serial-usb-lcm-version.tgz

Change directory to the extracted folder

2.
#cd lanner-serial-usb-lcm-vx

Type make to build source code:

3.
#make
After compilation, the executable programs (usb_disp,

usb_key, ser_disp, ser_key) where disp denotes the control

of display and key denotes the keypad input function and

usb and ser denote USB and serial interfaces respectively

will appear in the program’s folder.

Note: The OS supported by Lanner LCM function

include platforms based on Linux Kernel series

2.4.x and Linux Kernel series 2.6.x.

Install

#mknod /dev/usb/hiddev0 c 180 96

Note:

The OS supported by Lanner LCM function

include platforms based on Linux Kernel series

2.4.x and Linux Kernel series 2.6.x, FreeBSD 8.0,

and DOS.

For information on installation on platforms

other than Linux, see \lanner-serial-usb-lcm-

v0.5\README and \lanner-serial-usb-lcm-v0.5\

dos-example\ README

Execution
# ./ser_disp or ./usb_disp
Options:
[-I] | [-o XXXXX] | [ [-b YYYYY] | [-f ttyS_No] | [-d filename] |
[-g filename] | [-c cmd] | [-0 arg0] [-1 arg1]... [-h]
[-I]: Identify LCM information and get flash setting
[-o XXXXX]: to override default baud rate
valid values are: 9600, 19200, 38400, 57600, 115200
[-b YYYYY]: to change the baud rate
valid values are: 9600, 19200, 115200
[-f ttyS_No]: assign the keypad device used as ttySNO
[-d filename]: to display the specified file on Text LCD
[-g filename]: to display the specified file on Graphic

LCD
[-0 arg0]: data[0]
[-1 arg1]: data[1]
[-2 arg2]: data[2]
[-3 arg3]: data[3]
[-4 arg4]: data[4]
[-v]: be verbose
[-h]: this help

#./ser_key or ./usb_key
The keypad function test program will not detect the

keypad device; therefore, you should assign it with the

[-f] option (the default is /dev/ttyS0 or /dev/usb/hiddev0)