Matrix Orbital LK202-25 - Manual (Page 22)

18
6.3 Special Characters
3.1 Create a Custom
Character Dec
Hex
ASCII 254 78
FE 4E
■ N
ID Data
ID Data
ID Data v5.6
Creates a custom character. Each character is divided into 8 rows of 5 pixels; each data byte represents one row.
Each byte is padded by three zero bits followed by five bits representing each pixel state. A one represents an on
condition while a zero is off. Characters are lost when a new memory bank is loaded, unless they are saved.
ID Byte Character ID, value between 0 and 7.
Data Byte[8] Character pixel data as shown below.
Table 13: Custom Degree Character
Data[1] 000 p1 p2 p3 p4 p5 0000 1 000 8
Data[2] 000 p1 p2 p3 p4 p5 000 1 0 1 00 20
Data[3] 000 p1 p2 p3 p4 p5 0000 1 000 8
Data[4] 000 p1 p2 p3 p4 p5 000000 11 3
Data[5] 000 p1 p2 p3 p4 p5 00000 1 00 4
Data[6] 000 p1 p2 p3 p4 p5 00000 1 00 4
Data[7] 000 p1 p2 p3 p4 p5 000000 11 3
Data[8] 000 p1 p2 p3 p4 p5 00000000 0
3.2 Save Custom
Characters Dec
Hex
ASCII 254 193
FE C1
■ ñ
Bank ID Data
Bank ID Data
Bank ID Data v5.6
Provides access to all memory banks to create and save custom characters, graph bars, and large digits. Any new
characters saved will overwrite the old, so care should be taken when writing to any bar or digit memory bank.
Bank structure is shown below.
Bank Byte 1 byte, memory bank ID, value between 0 and 4, as below.
ID Byte 1 byte, value between 0 and 7.
Data Byte[8] 8 bytes, character pixel data as above.
Table 14: Custom Character Banks
0 Start-up Characters 1 Horizontal Bars 2 Vertical Bars 3 Medium Digits 4 Large Digits
3.3 Load Custom
Characters Dec
Hex
ASCII 254 192
FE C0
■ └
Bank
Bank
Bank v5.6
Loads a bank of custom characters into memory for use. Must be issued before using a bank of characters.
Alternatively, an appropriate initialize command can be used.
Bank Byte Memory bank ID, value between 0 and 4, as above.