Matrix Orbital GLT240128 Legacy - Manual (Page 29)

Once completed, place the character table after the header and the character data aat the end, as seen in
table 10.
Table 10: Sample Font File
0x05 0x07 0x68 0x6A 0x00 0x0D 0x05 0x00
0x12 0x03 0x00 0x15 0x04 0x84 0x2D 0x98
0xC6 0x20 0x43 0x24 0x84 0x2D 0x98 0x19
0x60
Red = Header
Blue = Character Table
Purple = Character Data
5.2 Uploading a Font File
Syntax Hexadecimal 0xFE 0x24 [refID] [size] [data]
Decimal 254 36 [refID] [size] [data]
ASCII 254 “$” [refID] [size] [data]
Parameters Parameter Length Description
refID 1 A unique font identification
number.
size 2 Font file size (LSB to MSB).
data x Font file data.
Description In order to upload a font to the GLT24064 you must first initiate the
upload font file command (0xFE 0x24), you must then pass it a
reference identification number, which must be unique for every font on
the display module. You may then pass the display module the two byte
file size, which needs to be transfered LSB, then MSB. The last part of
uploading a font is transmitting the font file data.
For detailed instructions on uploading a file to the GLT24064 see
Section 11 on page 43.
NOTE This command is available but not supported in I 2 C.
Remembered Always
5.3 Setting the Current Font
Syntax Hexadecimal 0xFE 0x31 [refID]
Decimal 254 49 [refID]
ASCII 254 “1” [refID]
Matrix Orbital GLT240128 24