6. Programmer's Reference
DA2DVI-HDCP-Pro – User's Manual
21
Legend
:
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.
6.4.4. View EDID Header
Description
: Shows basic information about EDIDs in the memory.
Explanation
: Shows the EDID from U14 memory slot which is the EDID 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
<type>
Description
Response length
U
User saved EDIDs
48
D
Dynamic EDIDs
2
E
Emulated EDIDs
1
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 the display device stored in product descriptor.
6.4.5. Delete EDID from Memory
Description
: Clear EDID from memory location <loc>.
Explanation
: All user EDIDs are cleared from memory.
Legend
: Depending on <loc>, one EDID or all EDIDs in a block can be cleared.
6.4.6. Download EDID Content
Description
: EDID hex bytes can be read directly. The router will issue the whole content of the EDID present
on memory location <loc> (256 bytes).
Legend
: <B1>..<B256> are space separated hex characters represented in ASCII format.
Explanation
: Full EDID from memory location F1 is downloaded.
Format
Example
Command {DE<loc>}
→
{deu*}
Response (DE_OK)CrLf
(E_S_C)CrLf
←
←
(DE_OK)
E_S_C)
<loc>
Result
Fxx
Not valid! Factory EDID cannot be deleted. No response.
Uxx
Specified User EDID is deleted.
Dxx
Specified Dynamic EDID is deleted. It will be empty until a new monitor
is connected.
Exx
Specified Emulated EDID cleared. By default F49 EDID is copied to it.
F*
Not valid! Factory EDID cannot be deleted. No response.
U*
All User EDIDs are deleted.
D*
All Dynamic EDIDs are deleted. They will be empty until a new monitor
is connected.
E*
All Emulated EDIDs are cleared. By default F49 EDID is copied to them.
Format
Example
Command
{WE<loc>}
→
{wef1}
Response (EB#<loc>
●
<B1>
●
<B2>
●
..
●
<B256>)CrLf
←
(EB#F1 00 FF FF FF FF FF FF 00 32 F2 00
00 00 .. .. .. 00 00)
