- Matrix Power Supply User Manual

Description In order to upload a font to the GLK24064-25 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 GLK24064-25 see
Section 11.1 on page 43.
Remembered Always
5.3 Setting the Current Font
Syntax
Hexadecimal 0xFE 0x31 [refID]
Decimal 254 49 [refID]
ASCII 254 “1” [refID]
Parameters
Parameter Length Description
refID 1 A unique font identification
number.
Description In order to set the font on the GLK24064-25 you must know the font
identification number of the font that you wish to use. The font ID is
established when the font is saved to the display. The default installed
fonts are “Small Filled” and “Futura Bk BT 16” and their font ID’s are
0x01 and 0x02 respectfully. Once you are aware of the font ID for the
font that you wish you use, simply send the command bytes (0xFE 0x31)
and then send the font ID corresponding to the font you wish to use. A
directory listing of the contents of the entire filesystem may be obtained
by using the “Get Filesystem Directory” command, see Section 11.5 on
page 46 for more detailed information.
Remembered Always
5.4 Font Metrics
Syntax
Hexadecimal 0xFE 0x32 [lm] [tm] [csp] [lsp] [srow]
Decimal 254 50 [lm] [tm] [csp] [lsp] [srow]
ASCII 254 “2” [lm] [tm] [csp] [lsp] [srow]
Matrix Orbital GLK24064-25 22