Matrix Orbital GLK12232-25-FGW - Manual (Page 32)

Description The GLK12232-25 is capable of storing font and bitmap files up to 16
Kbytes. In order to upload a bitmap to the GLK12232-25 you must first
initiate the upload font file command (0xFE 0x5E), 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 bitmap is transmitting the bitmap file data.
For detailed instructions on uploading a file to the GLK12232-25 see
Section 12 on page 42.
NOTE This command is not available in I2C.
Remembered Always
7.3 Drawing a Bitmap from Memory
Syntax Hexadecimal 0xFE 0x62 [refID] [X] [Y]
Decimal 254 98 [refID] [X] [Y]
ASCII 254 “b” [refID] [X] [Y]
Parameters Parameter Length Description
refID 1 The bitmap identification number.
X 1 Left bounds.
Y 1 Top bounds.
Description This command will draw a bitmap that is located in the on board
memory. The bitmap is referenced by the bitmaps reference
identification number, which is established when the bitmap is uploaded
to the display module. The bitmap will be drawn beginning at the top
left, from the specified X,Y coordinates. A directory listing of the
contents of the entire filesystem may be obtained by using the “Get
Filesystem Directory” command, see Section 12.5 on page 46 for more
detailed information.
Remembered No
7.4 Drawing a Bitmap Directly
Syntax Hexadecimal 0xFE 0x64 [X] [Y] [W] [H] [D]
Decimal 254 100 [X] [Y] [W] [H] [D]
ASCII 254 “d” [X] [Y] [W] [H] [D]
Matrix Orbital GLK12232-25 27