backlight.h

44b0(arm7)一个参考代码

/*****************************************************
file name:   backlight.h
 author:       lishiqi
date:         2005 11 25
******************************************************/

/******************************************************/

#define      PULSE_BACKLIGHT
#undef       PWM_BACKLIGHT

#ifndef  BACKLIGHT_H
#define BACKLIGHT_H
typedef enum
{
BackLight_Level_0,
BackLight_Level_1,
BackLight_Level_2,
BackLight_Level_3,
BackLight_Level_4,
BackLight_Level_5,
BackLight_Level_6,
BackLight_Level_7,
BackLight_Level_8,
BackLight_Level_9,
BackLight_Level_10,
BackLight_Level_11,
BackLight_Level_12,
BackLight_Level_13,
BackLight_Level_14,
BackLight_Level_15,
BackLight_Level_16,
BackLight_Level_17,
BackLight_Level_18,
BackLight_Level_19,
BackLight_Level_20
}BackLight_Level;

/******************************************************
func name:    pwm_baklight_init
    
desc:    time0 clk=1.25M(0.8uS),   MCLK=50M		
         BACKLIGHT FREQUENCF=256HZ(T=3906uS)								
*******************************************************/	
void backlight_init(void);
/******************************************************
func name:    set_backlight
    
desc:  
para :  backlight_level_0, backlight_level_1....... backlight_level_20							
*******************************************************/	
void set_backlight(BackLight_Level  level);


#endif