Advent Instruments Inc.
3. HAL Properties
Name:
MFGEN.ONTIME
ID:
137
Type:
Numeric
Description:
Writing to this property sets the tone duration, for symbols 1 to 16, to the specified value,
in units of milliseconds. This acts as a shortcut to manually setting the symbol table
durations to a common value.
Name:
MFGEN.RESET
ID:
236
Type:
Numeric - w/o
Description:
Writing to this property sets both frequencies for symbols 1 to 16 to the standard DTMF
values. Tone #1 is the ROW frequency, while Tone #2 is the COLUMN frequency.
Name:
MFGEN.STRING
ID:
140
Type:
String
Description:
The STRING property is used to generate a series of tone symbols. The 20 different
symbols each correspond to a different ASCII character (0-9, *, #, A, B, C, D, E, F, G,
H). After writing to this property, start the tone generator by writing a non-zero value to
the ACTIVE property.
Name:
MFGEN.SYMBOL
ID:
139
Type:
Numeric - w/o
Description:
Writing to this property, specifies the next symbol to generate. The valid range for this
property is from 1 to 20. Start the symbol by writing a non-zero value to the ACTIVE
property.
Note that the STRING property takes precedence over this property. Do not write to it
before starting writing to ACTIVE.
Name:
MFGEN.VALUE
ID:
134
Type:
Numeric
Description:
The VALUE property works in conjunction with the INDEX property for access to the
symbol data table. Once the INDEX value has been set to the desired table entry, the
table entry value can be read or modified to by reading or writing to the VALUE
property.
3.19 NOISE Properties
A pseudo-random noise generator is controlled with the following two properties. The
noise generator produces a flat spectral response up to approximately 18 kHz.
AI-7280 Programmers Guide - Direct Control
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