User manual

Microgate MicroGraph LED User Manual Page 57 of 88
The text frame format is as follows:
Field
Length
Content
Meaning
Start Frame
1
ESC (0x1B)
Start command frame
Address
1
A...Q,‘ ’
Row identifier, blank for broadcast
Command
1
(Any)
Command to send to the display board (see below)
Data
Variable
Variable
Optional command data area
End Frame
1
ETX (0x03)
End command frame
Checksum
1
Variable
7-bit checksum executed for the whole frame.
In the table below the various commands are listed, which can be used in the Command field of the text
record:
Command
Code
Display Date
A
Dec. 65 - Hex 41h
Start Program
B
Dec. 66 - Hex 42h
Set time sensitive to Pause
C
Dec. 67 - Hex 43h
Set time insensitive to Pause
c
Dec. 99 - Hex 63h
Set Pause (suspends the execution of subsequent commands)
D
Dec. 68 - Hex 44h
Set Date
d
Dec. 100 - Hex 64h
Entry Point/Label for cycles
E
Dec. 69 - Hex 45h
End of Program
K
Dec. 75 - Hex 4Bh
Loop/Goto
L
Dec. 76 - Hex 4Ch
Set time internal clock (Real Time Clock)
M
Dec. 77 - Hex 4Dh
Display time internal clock (Real Time Clock)
N
Dec. 78 - Hex 4Eh
Write scrolling string
O
Dec. 79 - Hex 4Fh
Stop scrolling string
o
Dec. 111 - Hex 6Fh
Execute internal hardware program
P
Dec. 80 - Hex 50h
Self-Timing Printer Strings
p
Dec. 112 - Hex 70h
Weak display board Reset (sensitive to Pause)
R
Dec. 82 - Hex 52h
Strong display board Reset (sensitive to Pause)
r
Dec. 114 - Hex 72h
Write fix string
S
Dec. 83 - Hex 53h
Parameter Setup
s
Dec. 115 - Hex 73h
Display set time
T
Dec. 84 - Hex 54h