ASTRO VG-877 - 4.4 LVT [43 H]: V timing data readout

328
NG case) unable to transfer： in case all RGB is set as 255.
STX
02H
1 BYTE
VG4CMD
FDH
1 BYTE
GRAPAL4
28H
4FH
2 BYTE
Data number
"100"
3 BYTE
,
2CH
1 BYTE
Bit Mode
"8"
1 BYTE
,
2CH
1 BYTE
Palette No.
"0"
1 BYTE
,
2CH
1 BYTE
R
"255"
3 BYTE
,
2CH
1 BYTE
G
"255"
3 BYTE
,
2CH
1 BYTE
B
"255"
3 BYTE
,
2CH
1 BYTE
Palette No.
"100"
3 BYTE
,
2CH
1 BYTE
R
"255"
3 BYTE
,
2CH
1 BYTE
G
"255"
3 BYTE
,
2CH
1 BYTE
B
"255"
3 BYTE
ETX
03H
1 BYTE
Control code（02H 03H）： total 2Byte
Distinguish code（FDH）： 1Byte
Command code（28H 4FH）： total 2Byte
Parameter：1497Byte
Total 1502Byte
Since it is over 1024 bytes, it is unable to transfer.
Note 3 : by executing “GRAPAL4 [28H 4EH] Graphic Palette Mode”, it can set in a range of 0
to 4095.