Sets the brightness of the LCD backlight.

Syntax

int BackLightLvl(
  int bl_level
);

Parameters

bl_level

[in] Specifies the brightness of the LCD backlight.

Value	Description
LCD_LEVEL1	Lowest brightness
LCD_LEVEL2	Level 2
LCD_LEVEL3	Level 3
LCD_LEVEL4	Level 4
LCD_LEVEL5	Highest brightness.
CURRENT_MODE	Do not change the settings.

Return value

Returns the changed setting.

Remarks

Sets the brightness of the LCD backlight.

Requirements

Header file:

lib.h

Library file:

libSTARTUPOPH5000.a

Sample

#include <stdio.h>
#include "lib.h"


void main(void)
{
    int lv[5] = {LCD_LEVEL1, LCD_LEVEL2, LCD_LEVEL3, LCD_LEVEL4, LCD_LEVEL5};
    int lvIndex;
    printf("[BackLightLvl]\n");
    printf("Please any key\r");
    ResetKey();
    while(!kbhit())
        Idle();
    for (lvIndex = 0; lvIndex < 5; lvIndex++)
    {
        printf("bl_level:%d\nPlease any key\r",lv[lvIndex]);
        BackLightLvl(lv[lvIndex]);
        ResetKey();
        while(!kbhit())
            Idle();
    }
}