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Backlight control added back in, driver fix (thanks Adela), OFF level configurable

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This commit is contained in:
Andre Bernet
2016-04-06 16:06:36 +04:00
parent 29325ad54f
commit 30018b2432
8 changed files with 41 additions and 34 deletions
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radio/src/targets/horus/lcd_driver.cpp
+12 -11
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@@ -320,32 +320,33 @@ void LCD_LayerInit()
void LCD_ControlLight(uint16_t dutyCycle)
{
static uint16_t existingDutyCycle;
if (dutyCycle == existingDutyCycle) {
return;
}
else {
existingDutyCycle = dutyCycle;
}
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
uint16_t freq = LCD_BKLIGHT_PWM_FREQ;
uint32_t temp = 0;
temp = 1000000 / freq - 1;
TIM_TimeBaseStructure.TIM_Prescaler = SystemCoreClock / 1000000 - 1 ;
TIM_TimeBaseStructure.TIM_Prescaler = SystemCoreClock / 10000 - 1 ;//1KhZ
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = temp;
TIM_TimeBaseStructure.TIM_Period = 100;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);
unsigned long tempValue;
tempValue = (unsigned long)divRoundClosest((temp+1)*(100-dutyCycle), dutyCycle);
TIM_Cmd(TIM8, DISABLE);
/* Channel 1 Configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = (uint32_t)tempValue;
TIM_OCInitStructure.TIM_Pulse = (100-dutyCycle);
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;