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Section
7
.
Programmers
reference
7.7.6. View EDID header
Description
: Shows basic information about EDIDs in the memory.
Format
Example
Command {WH<loc>}
→ {whe1}
Response
(EH#<loc>●
<EDID_HEADER>)CrLf
←
(EH#E1 NEC 1280x1024@60
LCD1970NXp)CrLf
Legend:
Depending on
<loc> the query can be for one EDID, all EDID in the block.
<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
E*
All Emulated EDIDs
headers from all inputs
<EDID_HEADER> consists of 3 fields separated by spaces:
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.
Explanation:
Shows the EDID from the input 1.
7.7.7. Download EDID content from the router
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).
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 92
) CrLf
Legend:
<B1> .. <B256> are space separated hex characters represented in ASCII format.
Explanation:
Full EDID from memory location 1 is downloaded.
7.7.8. Upload EDID content to the router
Description:
EDID hex bytes can be written directly to the user programmable memory
locations.
Sequence:
Step 1.
Prepare the router to accept EDID bytes to the specified location <loc> with
command
{WL#<loc>}
Step 2.
Router responds that it is ready to accept EDID bytes with
(E_L_S)CrLf
Step 3.
Send 1 block of EDID (1 block consist of 8 bytes of hex data represented in ASCII
format) with command:
{WB#<num>●<B1>●<B2>●<B3>●<B4>●<B5>●<B6>●<B7>●<B8>}
Step 4.
The router acknowledges with response
(EL#<num>)
Step 5.
Repeat steps 3 and 4 to send the remaining 31 blocks of EDID (32 altogether)
Step 6.
After the last acknowledge, the router indicates that the EDID status changed by
sending
(E_S_C) CrLf
