Operator`s manual

Soft Fonts Chapter 9

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470 Operators Manual

^A ^D Command

118 Read Volatile User Memory: The 470 will send the contents of the volatile

(320KB) user memory to the serial port.

0 List volatile graphic images and downloadable fonts

1 List volatile graphic images

2 List volatile downloadable fonts

119 Read Non-Volatile User Memory: The 470 will send the contents of non-

volatile 192KB user memory to the serial port.

0 List non-volatile labels, graphics images and downloadable fonts.

1 List non-volatile labels

2 List non-volatile graphic images

3 List non-volatile downloadable fonts

9.2 DOWNLOADABLE FONT STRUCTURE

A downloadable font consists of a font descriptor block (header), a proportional character array

pointer table, a non-proportional character array pointer table, and the character pixel array.

NOTES:

- All words are in low-byte, high byte format.

- The maximum (before ASCII-HEX encryption) size is 128K bytes.

Character Header:

PARAMETER SIZE DESCRIPTION

Font name - 18chr Text surrounded by quotes

ex. "Marin 12x8 "

All data following the font name should be in ASCII-HEX

format.

Words - word Number of words following this element. This is the word size of

the following data BEFORE it is encrypted into the ASCII-HEX

format.

First Char - byte First character in font, ex. 20h

Last Char - byte Last character in font, ex. 7Fh

Pitch - word Pitch of packed characters, size of character pixel array

piers (see below)

Cell Height - word Cell height of font