DATECS DPP-450 Programmer’s Manual
‘F’ - Fa
‘G’ - Sol
‘A’ - La
‘B’ – Si
If immediately after the note comes character ‘#’, then the note is higher in pitch by a
semitone (sharp). If immediately after the note comes character ‘&’, then the note is lower in
pitch by a semitone (flat).
- Pause: Character space (ASCII 20h).
After a note or pause there can be one or a few bytes, which specify the duration. Valid are
characters from ‘0’ to ‘5’, they have the following meaning:
‘0’ basic duration of a
note/pause
‘1’ basic duration * 2
‘2’ basic duration
* 4
‘3’ basic duration
* 8
‘4’ basic duration
* 16
‘5’ basic duration
* 32
If there are a few durations one after another they are summed up.
• Going to higher scale: character ‘+’.
• Going to lower scale: character ‘-‘.
• Specifying tempo: character ‘^’, followed by a number. The number specifies the
percentage: duration of notes and intervals to basic duration. Values:
‘1’ 200 %
‘2’ 175 %
‘3’ 140 %
‘4’ 120 %
‘5’ 100 %
‘6’ 80 %
‘7’ 60 %
‘8’ 50 %
‘9’ 40 %
- Return to scale 1 (it is default). Character ‘@’. Tone ‘La’ in it is 440 Hz.
It is recommended that the data ends with ASCII code 03h, although any other non-printing
character will also stop the command.
72. Reading current printer settings (ESC s)
Code: [1Bh] + [73h] + n
This command returns current settings or loaded data in printer. Possible
values for n: 0 or ‘0’: Current settings from flash memory are returned in
following order:
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