Advantech SG-1103 Manual de usuario descargar pdf (Pagina 43)

35 ROM-5420 User Manual

Chapter 3 Software Functionality

LVDS 1(Single) out, please set in u-boot as below:

setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/

mmcblk1p1 rootwait rw video=mxcfb0:dev=ldb,1920x1080M@60,if=RGB24

ldb=sin0'

LVDS 2(Split) out, please set in u-boot as below:

setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/

mmcblk1p1 rootwait rw video=mxcfb0:dev=ldb,1920x1080M@60,if=RGB24

ldb=sin1'

3.8.5.3 Multi Display Settings

When you want to display dual LVDS, VGA and HDMI output , please set parameter

in U-boot as follows. This is the default settings in U-boot.

setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk1p1

rootwait

setenv bootargs_base 'setenv bootargs console=ttymxc0,115200

enable_wait_mode=off video_mode=extension'

For display interface clock, there are several options (Independently for each port)

listed below:

1. Derived from the IPU internal clock (Master Mode)\

2. Provided by an external source (Slave Mode)

3. The transfer rate supported

When a single port is active, the pixel clock rate is up to 264 MHz

When both LVDS ports are active, you have to follow below condition:

1. Each pixel clock rate may be up to 220 MHz**

2. The sum of pixel clock rates is up to 240 MHz

3.8.6 Network Setup

Default: IP get form DHCP.

Manual: Set IP by below command:

#ifconfig eth0 192.168.0.1 up

ifconfig is to configure network interfaces, the manual page is as below.

SYNOPSIS

ifconfig [-v] [-a] [-s] [interface]

ifconfig [-v] interface [aftype] options | address ...

OPTIONS

-a display all interfaces which are currently available, even if

down

-s display a short list (like netstat -i)

Note! Specified pixel clocks frequencies are applicable for internal clocks, but

may be limited by IO buffers speed capability. Final numbers are sub-

jected to AC characterization.

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Advantech SG-1103 Manual de usuario Pagina 43