VP-725DSA Text Overlay Protocol
73
13 VP-725DSA Text Overlay Protocol
Table 28 includes the Text Overlay Protocol.
Command P1 P2 P3;
P1, 2, 3: Parameters 1, 2, 3
Table 28: Text Overlay Protocol of the VP-725DSA
Functions
Command
P1
P2
P3
Comments
1
Display Buffer
Configuration
T12ED ** ** ** Page No. of
Buffer
Page
Width
Page
Height
No of page <= 7
Buffer size limitation: Width * Height *
(Page No+1) <= 70KB
2
V-Position
T13EC **
Vertical
Location
NA
NA
1~2047
3
H-Position
T14EB **
Horizontal
Location
NA
NA
1~2047, Non Used
4
Text Color Effect
T16E9 **
Mode
NA
NA
Mode :
0: Transparency
1: Partial Transparency
2: Normal
5
Text RGB Color
T17E8 ** ** ** R
G
B
RGB color 0-255
6
Text Partial
Transparency Color
T18E7 ** ** ** R
G
B
RGB color 0-255
7
Background Color
Effect
T19E6 **
Mode
NA
NA
0: Transparency
1: Partial Transparency
2: Normal
8
Background RGB
Color
T1AE5 ** ** ** R
G
B
RGB color 0-255
9
Background Partial
Transparency Color
T1BE4 ** ** ** R
G
B
RGB color 0-255
10
TextOverlay On
T1CE3
NA
NA
NA
Enable TextOverlay
11
TextOverlay Off
T1DE2
NA
NA
NA
Disable TextOverlay
12
Blank Time
T1EE1 **
Seconds
NA
NA
Time between Two Strings, 0-30Sec
13
Text Bitmap
Download Start
T1FE0
NA
NA
NA
PC start to send bit string
14
TextOverlay Mode
T20DF **
Mode
NA
NA
0: Scroll
1: Static
15
Text H-Shift(only
available for static
mode)
T21DE ** **
Page
H
location
NA
Text placement on H location
Page :Which string active
H location < 32767
16
Speed
T22DD ** **
Refresh rate Step
Size
NA
Refresh rate : 10-100ms
( Slow – fast )
Step Size : 1-10 pixels
Command handshake: Only leading character for command start and no ending code.
Bit map file format: It is a raster scan image with 1 bit. 0 for background and 1 for text. The 0, 1 is ASCII code.
T1FE0001100010010010010011110010010; send bitmap as following image.