User manual

Microgate MicroGraph LED User Manual Page 73 of 88
Display Date – Active Object
Command code
‘A’
Data area
Item
Length (bytes)
Notes
Mode
1
1=DD/MM/YY
2=DD MM YY
Select Font
If you want to use the graphical display board in MicroTab-compatible mode, you must specify the display
font. This command sets the font for all display boards and prepares them to receive commands with an
identifier unequal to ‘@’. When turned on, the default font is 15x24 (TBD).
Command code
‘F’
Data area
Item
Length (bytes)
Notes
None (uses the font field of
the graph header to set the
font)
Insert Images
This command is used to display Bitmap images on the graphical display board. Each data bit placed at ‘1’
corresponds to a lit pixel of the image. The image is scanned vertically, sending one column at a time,
aligned to the byte. No compression is provided
Command code
‘I’
Data area
Item
Length (bytes)
Notes
X Dimension
2
Horizontal image dimension, in pixels
Y Dimension
2
Vertical image dimension, in pixels
Image data
?
Each pixel column is sent starting from the top. The
Least Significant bit is the highest pixel. The last byte
of the column is padded with zeroes, if the vertical
image size is different from n*8.
Digital output command
Command code
‘i’
Data area
Item
Length (bytes)
Notes
Input/Output control
1
Uses bits from 0 to 3 to select the mode of digital I/O
from 0 to 3 (0 = output, 1 = input).
Digital output value
1
Uses bits from 0 to 4 to set the value on digital
outputs from 0 to 4. (0 = 0V, 1 = 5V)