GLK19264-7T-1U-WB-USB Matrix Orbital, GLK19264-7T-1U-WB-USB Datasheet - Page 25

• Manufacturer Part Number: GLK19264-7T-1U-WB-USB
• Description: LCD Character Display Modules Blue Background White Text
• Manufacturer: Matrix Orbital

Specifications of GLK19264-7T-1U-WB-USB

• Character Count X Line: 32 x 8
• Background Color: Blue
• Voltage Rating: + 5 VDC
• Operating Temperature Range: - 20 C to + 70 C
• Backlight Type: LED White
• Interface: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
2. Character Table (3 bytes for every character between the ASCII Start and End values inclusive)
3. 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 21 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)
(c) ASCII Start Value (1 byte)
(a) High Offset MSB (1 byte)
(c) Character Width (1 byte)
Nominal Width
0x05
1
1
1
1
1
1
1
Figure 21: Bitmaps for h, i, and j
Bitmap Data
Figure 22: Bitmap Encoding
Height
0
0
0
1
0
0
0
Table 8: Font File Header
0x07
GLK19264-7T-1U
0
0
1
0
0
0
0
0
0
1
0
0
0
0
ASCII Start Val
0
0
0
1
1
1
1
0x68
10000100
00101101
10011000
11000110
00100000
Byte
ASCII End Val
Hex Value
0x2D
0xC6
0x84
0x98
0x20
0x6A
20