Horner-apg XL4 OCS Manual do Utilizador descarregar pdf (Página 81)

MAN0964-01-EN CH.13

June 29, 2012 Page 81 of 122

13.11 Screen Brightness

The XL4 provides a feature that allows screen dimming for night operation. To enable this feature, the

application must access and control system register %SR57 (Display Backlight Brightness). Screen

brightness is continuously variable by driving %SR57 through the range of 100 (full bright) to 0 (full off). It

is left to the screen designer on if and how to present a Screen Brightness control to the user.

Note that backlight life may be shorted when screen is dimmed or screen brightness is varied on a

repetitive basis.

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Horner-apg XL4 OCS Manual do Utilizador Página 81