ASTRO VG-871 - GCHAR [27 H]: Character Drawing

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5.8 GCHAR [27H]: Character drawing
Function: This command writes the points designated on the graphic plane as a character.
The font size and display coordinates are set by the parameters.
Sequence: Type 6
Command:
STX
1 byte
02H
GCHAR
1 byte
27H
Font size
1 byte
“0” = 5×7
“1” = 7×9 inverse
“2” = 7x9
“3” = 7x9 inverse
“4” = 16x16
“5” = 16x16 inverse
Data delimiter
1 byte
“, “
X coordinate
1 to 4 bytes
“0” to “4095”
Data delimiter
1 byte
“, “
Y coordinate
1 to 4 bytes
“0” to “4095”
ETX
1 byte
03H
Fig. 5-8-1
Data: Character data
STX
1 byte
02H
TRDT
1 byte
10H
Character code
Max. 128
bytes
Max. 128 characters
ETB
1 byte
17H
•
• <Block 1> to <Block h>
•
STX
1 byte
02H
TRDT
1 byte
10H
Character code
Max. 128
bytes
Max. 128 characters
ETX
1 byte
03H
Fig. 5-8-2