Downloadable Graphics Commands - Microcom 424 Operator's Manual

Downloadable Graphics
Word char_width
Byte bitmap_data[char_height][byte_width]

6.7 Downloadable Graphics Commands

The following commands refer to the use of downloadable graphics:
^A ^D COMMAND
100 Clear User RAM: This command clears all downloadable fonts, graphics, and
stored label formats.
101 List RAM Memory Bytes Available: The printer will send the ">" character
followed by the amount of available bytes and then finally a "<" character. (i.e.
>192690<)
XX 104* Save GRAPHICs or FONTs into RAM Memory without Compression:
The ^Axx specifies which memory slot to place the image/font (1-255). This
command should be used with an ASCII-HEX file that contains only printable
characters less than 80 HEX. This command supports graphics over 64KB.
XX 105 Delete Graphics from RAM:
0 Deletes ALL graphics from RAM
XX Deletes the graphics in slot #XX
XX 106* Save GRAPHICs or FONTs into RAM Memory without Compression:
This command is intended for legacy support only and Microcom Corporation
recommends either the ^D104 or ^D107 commands. Fonts must be less than
64KB for this command to function.
XX 107* Save GRAPHICs or FONTs into RAM Memory using Binary Compression:
XX 133* Save Compressed GRAPHIC to FLASH.
*Note: These are commands are for Programmers use only.
6-8
width of the graphic image in dots
bitmap of character, 2d array. The most
significant bit of the first byte in each row, prints
as the right most dot of the character, and the
first row is the bottom row when printed.
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Chapter 6