Delete Edid From Memory; Download Edid Content; Upload Edid Content To The Router; Command {Wl#<Loc>} → {Wl#U3 - Lightware DA2DVI-DL User Manual

Multimedia signal distribution amplifier
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6. Programmer's Reference

6.3.5. Delete EDID from Memory

Description: Clear EDID from memory location <loc>.
Command
{DE<loc>}
Explanation: All user EDIDs are cleared from memory.
Legend: Depending on <loc>, one EDID or all EDIDs in a block can be cleared.
<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.

6.3.6. 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).
Format
Command
{WE<loc>}
Legend: <B1>..<B256> are space separated hex characters represented in ASCII format.
Explanation: Full EDID from memory location F1 is downloaded.
→ {deu*}
(DE_OK)
(E_S_C)
Example
→ {wef1}
00 .. .. .. 00 00)
DA2DVI-DL - User's Manual

6.3.7. Upload EDID Content to the Router

Description: EDID hex bytes can be written directly to the user programmable memory locations. The
sequence is the following:
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
Format
Command
{WB#1●<B1>●<B2>●<B3>
●<B4>●<B5>●<B6>●<B7> ●<B8>}
Response
(EL#<num>)CrLf
Command
{WB#2●<B9>●<B10>
●<B11>●<B12>●<B13>
●<B14>●<B15>●<B16>}
Response
(EL#<num>) CrLf
...
Command
{WB#32●<B249>●<B250>
●<B251>●<B252>●<B253>
●<B254>●<B255>●<B256>}
Response
(EL#<num>) CrLf
Response

(E_S_C) CrLf

Legend: <num> represents the sequential number of every 8 byte part of EDID. <num> is between 1 and 32.
<B1>..<B256> are the bytes of EDID.
Explanation: Full EDID uploaded to memory location U3.
Example
→ {WB#1 00 FF FF FF FF FF FF 00}
← (EL#1) CrLf
→ {WB#2 38 A3 8E 66 01 01 01 01}
← (EL#2) CrLf
...
→ {WB#32 36 59 42 0A 20 20 00 96}
← (EL#32) CrLf
22

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