Posted on July 06, 2010 at 15:53Hello,
I'm trying to dim a LED with the touch sensor on the STM8S Discovery board.
After a touch the LED begins to dim until it's dark, but it should stop dimming, if I take my finger away again. This action is not recognized.
I think the code stays in an infinite loop at the line, which I have marked with the arrow.
When is the TSL_GlobalSetting.b.CHANGED-flag set? I cannot find it in the help files. Or must I use another flag? Or is anything else in my code wrong? Or is it impossible to use this flag two times in the ExtraCode_StateMaschine and if this is the case, how can I implement LED dimming with TSL?
Here is my code:
void ExtraCode_StateMachine(void)
{
if (TSL_GlobalSetting.b.CHANGED)
{
TSL_GlobalSetting.b.CHANGED = 0;
if (sSCKeyInfo[0].Setting.b.DETECTED)
{
GPIO_WriteHigh(GPIOD, GPIO_PIN_0);
TIM3_OC1Init(TIM3_OCMODE_PWM1, TIM3_OUTPUTSTATE_ENABLE, 999, TIM3_OCPOLARITY_HIGH);
while(TSL_GlobalSetting.b.CHANGED==0)<---------
{
if (TSL_Tick_Flags.b.User_Flag_100ms == 1)
{
Delay(&Dim, 1*MilliSec);
}
}
}
else
{
GPIO_WriteLow(GPIOD, GPIO_PIN_0);
}
}
}
void Dim (void)
{
u16 pwm=0;
if (dimming>20)
{
pwm=dimming-20;
dimming=pwm;
}
TIM3_OC1Init(TIM3_OCMODE_PWM1, TIM3_OUTPUTSTATE_ENABLE, dimming, TIM3_OCPOLARITY_HIGH);
}
Greetings,
a.m.
