Override Low Power Turn Off [+]; Sound Output [+] - Husky MP2500 Manual

Override low power turn off [+]

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Description

Sound output [+]

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Exit
Description
CAUTION:
Chapter 26: INT 15H, BIOS Extension Functions [+]
AH=7DH
AL=control (0=turn off after 10 warnings non-0=never
turn off)
Returns nothing
MP2500 will normally turn off after issuing 10
consecutive low power warnings. Use this function to
disable this automatic
displaying the warnings. This prolongs use a little in
emergency situations. The MP2500 will still turn off
when the battery voltage becomes too low to operate
the unit.
By default, power down is enabled. This default is
restored by a cold start.
On MP2500, low power warnings are issued if the
battery voltage falls below a fixed threshold.
AH=82H
BX=pitch
DX=length
Returns nothing
Use this function to sound a tone of a specified pitch
(BX) and duration (DX). These parameters are
summarised in the following table.
The MP2500 sounder is designed to provide maximum
volume at 2KHz and may be too quiet at other
frequencies. Check before using this function in an
application.
The length parameter, DX, can be calculated from the
following formula:
power down, while still
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