Juniper-systems Allegro DOS Manual Manual do Utilizador descarregar pdf (Página 129)

Allegro DOS Owner’s Manual 129

Subfunction: AL = 14h (select font size in text mode)

Call with: b1 = 00h return current setting in AL

01h set 8 x 8 pixels

02h set 8 x 12 pixels

03h set 10 x 12 pixels

04h set 16 x 16 pixels

Subfunction: AL = 15h (perform system hard reset)

No arguments, when called does a hard reset.

Subfunction: AL = 19h (set LED brightness)

Call with: b1 = 00h return current setting in AL

= 01h dim

= 02h medium

= 03h bright

Subfunction: AL = 1Ah (get battery % charge)

Returns AL = % C, range 0 to 100%.

Subfunction: AL = 20h (get BIOS version)

Returns offset of BIOS version string in AX.

Segment is F000.

Subfunction: AL = 24h (BIOS Setup popup window)

Invokes the BIOS Setup window. Control is passed to the BIOS Setup

utility. The function returns when the user exits the Setup utility.

The video state is automatically saved and restored during this call.

Returns nothing.

This function requires the BIOS video save buffer to be available. If

the buffer is not available because another system popup window is

in use (such as the “battery change” window), this call is ignored.

Subfunction: AL = 26h (get/set vehicle mode)

Disallows battery charging when vehicle mode is ON and the

battery gauge percent charge register is greater than 90% (refer to

subfunction 1A). This prevents excessive overcharging when the

Allegro is connected to an external power supply where the power is

cycled on and off frequently, such as in a vehicle. When vehicle mode

is OFF, charging is allowed no matter what value is in the percent

charge register.

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Juniper-systems Allegro DOS Manual Manual do Utilizador Página 129