Matrix-orbital MOS-AL162F Manuel d'utilisateur télécharger pdf (Page 17)

Special Characters

1.15. Creating a Custom

Character

Dec

Hex

ASCII

254 78

FE 4E

■ N

ID Data

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.

1 byte, character ID 0-7

Data

8 bytes, character pixel data as shown below

Table 7: Custom Degree Character

Data1

000

00001000

Data2

000

00010100

Data3

000

00001000

Data4

000

00000011

Data5

000

00000100

Data6

000

00000100

Data7

000

00000011

Data8

000

00000000

1.16. Saving

Custom

Characters

Dec

Hex

254 193

FE C1

Bank ID Data

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

1 byte, memory bank ID (0-4)

1 byte, character ID (0-7)

Data

8 bytes, character pixel data as above

Table 8: Custom Character Banks

Start-up Characters

Horizontal Bars

Vertical Bars

Medium Digits

Large Digits

1.17. Loading Custom

Characters

Dec

Hex

254 192

FE C0

Bank

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

1 byte, memory bank ID (0-4)

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 26 27

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Matrix-orbital MOS-AL162F Manuel d'utilisateur Page 17

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