GLK24064-16-1U-WB Matrix Orbital, GLK24064-16-1U-WB Datasheet - Page 23

• Manufacturer Part Number: GLK24064-16-1U-WB
• Description: LCD Graphic Display Modules & Accessories Blue Background White Text
• Manufacturer: Matrix Orbital

Specifications of GLK24064-16-1U-WB

• Module Size (w X H X T): 180 mm x 65 mm x 17.95 mm
• Viewing Area (w X H): 132.2 mm x 39.2 mm
• Backlighting: LED
• Background Color: Blue
• Operating Temperature Range: - 20 C to + 70 C
• Attached Touch Screen: No
• Product: Graphic LCD Module
• Style: LCD Graphic Display
• Interface: RS-232, I2C
• Display Mode: White Text

5.1.1 Font File Format
5.1.2 Creating a Font
trates the bit pattern for the h, i and j bitmap data.
width, the height and the ASCII start and end values inclusive that you wish to create characters for.
table. The bitmaps are encoded horizontally and may have variable widths, h has a width of five, i a width
of three and j a width of four, see the figure below for an example of encoding the first letter h:
Matrix Orbital
1. Header (4 bytes)
2. Character Table (3 bytes for every character between the ASCII Start and End values inclusive)
3. Bitmap Data
A font file consists of three parts, a header, a character table and bitmap data.
The following is an example of how to create a font file for the letters h, i and j.
First you must create the bitmaps containing the character data in bitmap form. Figure 19 below illus-
Second you may begin to create the font file starting with the header. The header will contain the nominal
Next we will have to find out how many bytes each character will use up, in order to create the character
(b) Height (1 byte)
(d) ASCII End Value (1 byte)
(b) Low Offset LSB(1 byte)
(a) Nominal Width (1 byte)
(c) ASCII Start Value (1 byte)
(a) High Offset MSB (1 byte)
(c) Character Width (1 byte)
Nominal Width
0x05
Figure 19: Bitmaps for h, i, and j
Height
Table 8: Font File Header
0x07
GLC24064
ASCII Start Val
0x68
ASCII End Val
0x6A
18