6. Programmer's Reference
DVIDL-OPT series – User's Manual
24
6.3.
EDID Router Commands
ATTENTION!
EDID router commands are available in the DVIDL-OPT-TX200 transmitter only.
6.3.1.
Save EDID to User Memory
Description
: Learn EDID from <loc2> to <loc1>.
Explanation
: EDID from output 1 is saved to user EDID #4.
Legend
:
<loc1> has to be ‘Uxx’.
<loc2> can be ‘Fxx’ or ‘Uxx’ or ‘Dxx’ or ‘Exx’.
6.3.2.
View Emulated EDID on Input
Description
: Shows the currently emulated EDIDs for the input.
Explanation
: EDID from the output(s) is dynamically emulated on the input.
6.3.3.
Watch EDID Validity Table
Description
: Shows EDID validity table, which contains information about the EDID memory states.
Explanation
: There is four ‘1’ on the first position of the user EDID table. This means that the location 1..4 of
the user EDID memory is filled out, the remain ones are empty.
Legend
:
Format
Example
Command {<loc1>:<loc2>}
{u4:d1}
Response
(E_SW_OK)CrLf
(E_S_C) CrLf
(E_SW_OK)CrLf
(E_S_C) CrLf
Format
Example
Command {VEDID}
{vedid}
Response (VEDID•<IN>)CrLf
(VEDID D2)
Format
Example
Command
{WV<type>}
{wv*}
Response (EV<type>•<VALIDITY_TABLE> )CrLf
(EVU 111100000000000000000000000000000000000)
(EVD 01)
(EVE 3)
<type>
Response length
U
User saved EDIDs
39
D
Dynamic EDIDs
2
E
Emulated EDIDs
1
Each number represents the EDID validity state for the corresponding memory location.
INFO: If a changed EDID is queried by the {WH} command (see the next section), its value returns to ‘1’.
The status of a deleted EDID returns to ‘0’ after query.
6.3.4.
View EDID Header
Description
: Shows basic information about EDIDs in the memory.
Explanation
: Shows the EDID from memory location U14 saved by the user to the location 14.
Legend
: Depending on <loc> the query can be for one EDID or all EDID in the block.
<EDID_HEADER>
consists of 3 fields separated by spaces:
The
<EDID_HEADER>
is ‘-‘ for invalid EDIDs.
Value
Description
‘0’
invalid EDID
‘1’
valid EDID
‘2’
deleted EDID
‘3’
changed EDID
‘4’
empty EDID slot
Format
Example
Command
{WH<loc>}
{whu14}
Response (EH#<loc>•<EDID_HEADER>)CrLf
(EH#U14 NEC 1280x1024@60 LCD1970NXp)
<loc>
Result
Response
Fxx
Factory EDID query
header for one EDID
Uxx
User EDID query
Dxx
Dynamic EDID query
Exx
Emulated EDID query
F*
All Factory preset EDIDs
headers for all Factory EDIDs
U*
All User saved EDIDs
headers for 50 user EDIDs
D*
All Dynamic EDIDs
headers from all outputs (frame size)
E*
All Emulated EDIDs
headers from all inputs (frame size)
<loc>
Result
PNPID code
The three letter abbreviation of the manufacturer
Preferred resolution The resolution and refresh rate stored in the preferred detailed timing block.
Name
The name of display device stored in product descriptor.
