void led_update(enum led_status ls)
{
static bool is_pwm = false;
static bool step_sign = false;
static const int pwm_max = 100;
static const int pwm_one_step = 10;
static int pwm_last = 0;
if (!is_pwm && ls == LST_NORMAL) {
LED_ENABLE_PWM_MODE();
is_pwm = true;
}
else if (is_pwm && ls != LST_NORMAL) {
LED_DISABLE_PWM_MODE();
is_pwm = false;
}
if (ls == LST_FAIL) {
LED_ON();
}
else if (ls == LST_NORMAL) {
pwm_last += (step_sign) ? -pwm_one_step : pwm_one_step;
if (0 > pwm_last || pwm_last > pwm_max) {
step_sign = !step_sign;
pwm_last += (step_sign) ? -pwm_one_step : pwm_one_step;
}
LED_PWM(pwm_last);
}
else { /* INIT */
LED_TOGGLE();
}
}
/*=====================================================================================================*/
void LED_PWM_Shine( u16 LED_Sel, u16 LED_ShineNum, u16 LED_DelayTime )
{
u16 Tmp_LED_Sel = 0;
Tmp_LED_Sel = (u8)(LED_Sel>>4);
while(LED_ShineNum--) {
LED_PWM(LED_ON, Tmp_LED_Sel, LED_DelayTime);
LED1 = ((LED_Sel&0x01) == 0x01) ? 0 : 1;
LED2 = ((LED_Sel&0x02) == 0x02) ? 0 : 1;
LED3 = ((LED_Sel&0x04) == 0x04) ? 0 : 1;
LED4 = ((LED_Sel&0x08) == 0x08) ? 0 : 1;
LED_PWM(LED_OFF, Tmp_LED_Sel, LED_DelayTime);
LED1 = 1;
LED2 = 1;
LED3 = 1;
LED4 = 1;
}
}
