Matrix Orbital GLK12232-25-SM - Manual (Page 52)

Syntax Hexadecimal 0xFE 0x21 0x59 0x21
Decimal 254 33 89 33
ASCII 254 “!” “Y” “!”
Description This command completely erases the display’s non-volatile memory. It
removes all fonts, font metrics, bitmaps, and settings (current font,
cursor position, communication speed, etc.). It is an “odd” command in
that it is three bytes in length in order to prevent accidental execution.
NOTE After deleting the file system it is important to cycle power to your display to
ensure the removal process is completed.
Remembered Yes
12.3 Deleting a File
Syntax Hexadecimal 0xFE 0xAD [type] [refID]
Decimal 254 173 [type] [refID]
Parameters Parameter Length Description
type 1 Type of file (0:Font, 1:Bitmap)
refID 1 Reference ID of the file to delete.
Description This command erases a single file at a time within the
GLK12232-25-SM memory when given two parameters: [type] and
[refID]. The file type and reference number are defined when the file is
saved to the GLK12232-25-SM.
• [type] = 1: Bitmap
• [type] = 0: Font
NOTE After deleting a file it is important to cycle power to your display to ensure file
system integrity.
Remembered Yes
12.4 Get Filesystem Space
Syntax Hexadecimal 0xFE 0xAF
Decimal 254 175
Description This command will return 4 bytes, LSB to MSB for how many bytes are
remaining in the 16 KB on board memory.
Remembered No
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