Hatteland Display 20 inch - HM 20T07 CMD - Manual (Page 65)

65
Video Controller Interface Commands
Command Table
IND100103-1
n = 1-byte ascii-coded hex number, e.g., parameter value of 0x1 is represented by “1” (0x31).
nn = 2-byte ascii-coded hex number, e.g., parameter value of 0x1e is represented by “1”, “e” | “E” (0x31, x6e|0x4e).
Remarks:
1. Command 0xcd is only available for new units (05 May 2003 and after).
2. If the data sent to the controller is out of range, the controller will not set that value and there will be no
acknowledgement.
3. If the command sent to the controller is not available for that controller, there will be no acknowledgement.
4. The controller will respond to RS-232 command when the controller is in standby, no video input or normal
operating condition.
5. If the following parameters are changed through RS-232: Power Down Option, Exclusive/Priority,
Input Source, Video Input, the controller should change state according to the latest setting immediately.
Saving the user
default
0xd7 Saving all parameters to user
default value
“1” - successful.
Loading the user
default
0xd8 Loading all parameters to user
default value
“1” - successful.
Volume control -
left+right channel
0x80, “a” | “A”,
nn | “+” | “-” |
“r” | “R” |
“?”
Set audio (L+R) volume =
value/increment/decrement
Reset
Query
volume control
Volume control -
on/off (mute)
0x80, “m” | “M”,
“0” |
“1” |
“r” | “R” |
“?”
Disable audio output.
Enable audio output.
Reset
Query
“0” - audio off (muted).
“1” - audio on.
Other Control
Function Command Description Acknowledge (if enabled)
Select video mode 0xc2, nn Current vmode = nn. Current video mode selected.
Auto-setup 0xc3 Start auto-setup of current
vmode.
“0” – fail.
“1” – successful.
Command
availability
0xc4, nn Check whether a command is
available.
“0” – not available.
“1” – available.
Graphic horizontal
resolution enquiry
0xb7 Horizontal resolution (in pixels)
in 3 digit hex number
“nnn” = horizontal resolution
Graphic vertical
resolution enquiry
0xb8 Vertical resolution (in lines) in 3
digit hex number
“nnn” = vertical resolution
Graphic horizontal
sync frequency
0xb9 Horizontal sync frequency (in
units of 100Hz) in 3 digit hex
number
“nnn” = horizontal frequency
Graphic vertical
sync frequency
0xba Vertical sync frequency (in units
of Hz) in 3 digit hex number
“nnn” = vertical frequency
OSD turn off 0xbd Turn off the OSD. “0” – fail.
“1” – successful.
Function Command Description Acknowledge (if enabled)