/**
* @brief Configure TIM1 to allow sine wave generation
* @param None
* @retval None
*/
static void TIM1_Config(void)
{
TIM1_DeInit();
/* Time base configuration */
/*
TIM1_Period = INIT_TIM1_ARR
TIM1_Prescaler = 0
TIM1_RepetitionCounter=0
*/
TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, INIT_TIM1_ARR, 0);
/* PWM configuration */
/*
TIM1_OCMode = TIM1_OCMODE_PWM1
TIM1_OutputState = TIM1_OUTPUTSTATE_ENABLE
TIM1_Pulse = INIT_TIM1_CCR1
TIM1_OCPolarity = TIM1_OCPOLARITY_LOW
*/
TIM1_OC1Init(TIM1_OCMODE_PWM1, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_DISABLE,
INIT_TIM1_CCR1, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_LOW,
TIM1_OCIDLESTATE_RESET, TIM1_OCNIDLESTATE_RESET);
/* Update Interrupt Enable */
TIM1_ITConfig(TIM1_IT_UPDATE, ENABLE);
/* ARRPreload Enable */
TIM1_ARRPreloadConfig(ENABLE);
/* Enable TIM1 */
TIM1_Cmd(ENABLE);
/* Enable CC1 output*/
TIM1_CtrlPWMOutputs(ENABLE);
}
/**
* @brief Configure TIM1 peripheral
* @param None
* @retval None
*/
static void TIM1_Config(void)
{
/* TIM1 configuration:
- TIM1CLK is set to 2 MHz, the TIM2 Prescaler is equal to 0 so the TIM1 counter
clock used is 2 MHz / (0+1) = 2 MHz
- Channels output frequency = TIM1CLK / (TIM1_PERIOD + 1) * (TIM1_PRESCALER + 1)
= 2 000 000 / 65536 * 1 = 30.51 Hz */
/* Time Base configuration */
TIM1_TimeBaseInit(TIM1_PRESCALER, TIM1_CounterMode_Up, TIM1_PERIOD, TIM1_REPTETION_COUNTER);
/* Channels 1, 1N, 2, 2N, 3 and 3N Configuration in PWM2 mode */
TIM1_OC1Init(TIM1_OCMode_PWM2, TIM1_OutputState_Enable, TIM1_OutputNState_Enable, CCR1_VAL,
TIM1_OCPolarity_Low, TIM1_OCNPolarity_Low, TIM1_OCIdleState_Set, TIM1_OCNIdleState_Set);
TIM1_OC2Init(TIM1_OCMode_PWM2, TIM1_OutputState_Enable, TIM1_OutputNState_Enable, CCR2_VAL,
TIM1_OCPolarity_Low, TIM1_OCNPolarity_Low, TIM1_OCIdleState_Set, TIM1_OCNIdleState_Set);
TIM1_OC3Init(TIM1_OCMode_PWM2, TIM1_OutputState_Enable, TIM1_OutputNState_Enable, CCR3_VAL,
TIM1_OCPolarity_Low, TIM1_OCNPolarity_Low, TIM1_OCIdleState_Set, TIM1_OCNIdleState_Set);
/* Automatic Output Enable, Break, dead time and lock configuration
Enable the break feature with polarity high.
Non-inverted Channels and inverted channels rising edge are delayed
by 58.5 µs = DEADTIME / TIM1CLK = 117 / 2 MHz
As the lock level is level 1, Channels Idle state, break enable and polarity
bits can no longer be written.
*/
TIM1_BDTRConfig(TIM1_OSSIState_Enable, TIM1_LockLevel_1, DEADTIME,
TIM1_BreakState_Enable, TIM1_BreakPolarity_High, TIM1_AutomaticOutput_Enable);
/* TIM1 Main Output Enable */
TIM1_CtrlPWMOutputs(ENABLE);
}
/**
* @brief Configure TIM1 to generate 3 complementary signals, to insert a
* defined dead time value, to use the break feature and to lock the
* desired parameters
* @param None
* @retval None
*/
static void TIM1_Config(void)
{
/* TIM1 Peripheral Configuration */
TIM1_DeInit();
/* Time Base configuration */
/*
TIM1_Prescaler = 0
TIM1_CounterMode = TIM1_COUNTERMODE_UP
TIM1_Period = 65535
TIM1_RepetitionCounter = 0
*/
TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 65535,0);
/* Channel 1, 2 and 3 Configuration in PWM mode */
/*
TIM1_OCMode = TIM1_OCMODE_PWM2
TIM1_OutputState = TIM1_OUTPUTSTATE_ENABLE
TIM1_OutputNState = TIM1_OUTPUTNSTATE_ENABLE
TIM1_Pulse = CCR1_Val
TIM1_OCPolarity = TIM1_OCPOLARITY_LOW
TIM1_OCNPolarity = TIM1_OCNPOLARITY_LOW
TIM1_OCIdleState = TIM1_OCIDLESTATE_SET
TIM1_OCNIdleState = TIM1_OCIDLESTATE_RESET
*/
TIM1_OC1Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
CCR1_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/* TIM1_Pulse = CCR2_Val */
TIM1_OC2Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
CCR2_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/* TIM1_Pulse = CCR3_Val */
TIM1_OC3Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
CCR3_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/* Automatic Output enable, Break, dead time and lock configuration */
/*
TIM1_OSSIState = TIM1_OSSISTATE_ENABLE
TIM1_LockLevel = TIM1_LOCKLEVEL_1
TIM1_DeadTime = 117
TIM1_Break = TIM1_BREAK_ENABLE
TIM1_BreakPolarity = TIM1_BREAKPOLARITY_HIGH
TIM1_AutomaticOutput = TIM1_AUTOMATICOUTPUT_ENABLE
*/
TIM1_BDTRConfig( TIM1_OSSISTATE_ENABLE, TIM1_LOCKLEVEL_1, 117, TIM1_BREAK_ENABLE,
TIM1_BREAKPOLARITY_HIGH, TIM1_AUTOMATICOUTPUT_ENABLE);
/* TIM1 counter enable */
TIM1_Cmd(ENABLE);
/* Main Output Enable */
TIM1_CtrlPWMOutputs(ENABLE);
}
/**
* @brief Configure TIM1 to generate 7 PWM signals with 4 different duty cycles
* @param None
* @retval None
*/
static void TIM1_Config(void)
{
TIM1_DeInit();
/* Time Base configuration */
/*
TIM1_Period = 4095
TIM1_Prescaler = 0
TIM1_CounterMode = TIM1_COUNTERMODE_UP
TIM1_RepetitionCounter = 0
*/
TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 4095, 0);
/* Channel 1, 2,3 and 4 Configuration in PWM mode */
/*
TIM1_OCMode = TIM1_OCMODE_PWM2
TIM1_OutputState = TIM1_OUTPUTSTATE_ENABLE
TIM1_OutputNState = TIM1_OUTPUTNSTATE_ENABLE
TIM1_Pulse = CCR1_Val
TIM1_OCPolarity = TIM1_OCPOLARITY_LOW
TIM1_OCNPolarity = TIM1_OCNPOLARITY_HIGH
TIM1_OCIdleState = TIM1_OCIDLESTATE_SET
TIM1_OCNIdleState = TIM1_OCIDLESTATE_RESET
*/
TIM1_OC1Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
CCR1_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/*TIM1_Pulse = CCR2_Val*/
TIM1_OC2Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE, CCR2_Val,
TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/*TIM1_Pulse = CCR3_Val*/
TIM1_OC3Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
CCR3_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
TIM1_OCNIDLESTATE_RESET);
/*TIM1_Pulse = CCR4_Val*/
TIM1_OC4Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, CCR4_Val, TIM1_OCPOLARITY_LOW,
TIM1_OCIDLESTATE_SET);
/* TIM1 counter enable */
TIM1_Cmd(ENABLE);
/* TIM1 Main Output Enable */
TIM1_CtrlPWMOutputs(ENABLE);
}
void HalLightClose(void)
{
TIM1_SetCompare1(10);
HalLightDelay();
// GPIO_SetBits(GPIOD, GPIO_Pin_3);
GPIO_ResetBits(GPIOD, GPIO_Pin_3);
HalLightDelay();
TIM1_Cmd(DISABLE);
TIM1_CtrlPWMOutputs(DISABLE);
GPIO_SetBits(GPIOD, GPIO_Pin_2);
HalLightOn = FALSE;
HalLigthPWM = 0; /* 定时器关闭，无PWM输出 */
}
/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
/* TIM1 configuration -----------------------------------------*/
TIM1_Config();
/* TIM4 configuration -----------------------------------------*/
TIM4_Config();
/* Main Output Enable */
TIM1_CtrlPWMOutputs(ENABLE);
enableInterrupts();
while (1)
{}
}
void HalLightOpen(void)
{
TIM1_SetCompare1(5);
TIM1_Cmd(ENABLE);
TIM1_CtrlPWMOutputs(ENABLE);
HalLightDelay();
// GPIO_ResetBits(GPIOD, GPIO_Pin_3);
// GPIO_SetBits(GPIOD, GPIO_Pin_3);
HalLightDelay();
for (int i = 5; i <= HalLigthPWM; i++)
{
HalLightDelay();
TIM1_SetCompare1(i);
}
HalLightOn = TRUE;
}
/**
* @brief Configure TIM1 peripheral
* @param None
* @retval None
*/
static void TIM1_Config(void)
{
/* configure TIM1 channel 1 as PWM Output */
TIM1_OC1Init(TIM1_OCMode_PWM1, TIM1_OutputState_Enable, TIM1_OutputNState_Disable,
0x7FF/* TIM1_Pulse */, TIM1_OCPolarity_Low, TIM1_OCNPolarity_Low,
TIM1_OCIdleState_Reset, TIM1_OCNIdleState_Reset);
/* Set TIM1 Autoreload value*/
TIM1_SetAutoreload(0xFFF);
/* Enable TIM1 */
TIM1_Cmd(ENABLE);
/* GPIO configuration: TIM1 channel 1 (PD2)*/
GPIO_Init(GPIOD, GPIO_Pin_2 , GPIO_Mode_Out_PP_Low_Fast);
/* Enable TIM1 Outputs*/
TIM1_CtrlPWMOutputs(ENABLE);
}
void led_on(void)
{
TIM1_DeInit();
/* TIM1 configuration:
* TIM1 in PWM mode without output disabled. We only interest in the interrupts.
* Period of PWM is 1024us; Duty cycle adjustable from 1/16 - 15/16.
* With 16Mhz clock, we use:
* TIM1_Period = 16 - 1
* TIM1_Prescaler = 1024 - 1
* TIM1_Pulse = [0..15]
*/
TIM1_TimeBaseInit(1023, TIM1_COUNTERMODE_UP, 15, 0);
/*
TIM1_OCMode = TIM1_OCMODE_PWM1
TIM1_OutputState = TIM1_OUTPUTSTATE_DISABLED
TIM1_OutputNState = TIM1_OUTPUTNSTATE_DISABLED
TIM1_Pulse = [1..16], change using TIM1_SetCompare1
TIM1_OCPolarity = TIM1_OCPOLARITY_LOW; Doesn't matter as output is disabled
TIM1_OCNPolarity = TIM1_OCNPOLARITY_HIGH; Doesn't matter as output is disabled
TIM1_OCIdleState = TIM1_OCIDLESTATE_SET; Doesn't matter as output is disabled
TIM1_OCNIdleState = TIM1_OCIDLESTATE_RESET; Doesn't matter as output is disabled
*/
TIM1_OC1Init
(
TIM1_OCMODE_PWM1,
TIM1_OUTPUTSTATE_DISABLE, TIM1_OUTPUTNSTATE_DISABLE,
_duty,
TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH,
TIM1_OCIDLESTATE_SET, TIM1_OCNIDLESTATE_RESET
);
TIM1_ITConfig((TIM1_IT_TypeDef)(TIM1_IT_UPDATE | TIM1_IT_CC1), ENABLE);
/* TIM1 Main Output disabled */
TIM1_CtrlPWMOutputs(DISABLE);
/* TIM1 counter enable */
TIM1_Cmd(ENABLE);
}
/**
* @brief Configure TIM1,2,3 peripherals
* @param None
* @retval None
*/
static void TIM_Config(void)
{
/* TIM1 configuration:
- TIM1CLK is set to 2 MHz, the TIM2 Prescaler is equal to 15 so the TIM1 counter
clock used is 2 MHz / (15 + 1) = 125 000 Hz
- TIM1 Channel 1 output frequency = TIM1CLK / (TIM1_PERIOD + 1) * (TIM1_PRESCALER + 1)
= 2 000 000 / 256 * 16 = 488.28 Hz */
/* Time Base configuration */
TIM1_TimeBaseInit(TIM1_PRESCALER, TIM1_CounterMode_Up, TIM1_PERIOD, TIM1_REPETITION_COUNTER);
/* TIM1 Channel 1 Configuration in PWM2 mode */
TIM1_OC1Init(TIM1_OCMode_PWM2, TIM1_OutputState_Enable, TIM1_OutputNState_Disable, TIM1_CCR1_VAL,
TIM1_OCPolarity_Low, TIM1_OCNPolarity_Low, TIM1_OCIdleState_Set, TIM1_OCNIdleState_Set);
/* Master Mode selection: Update event */
TIM1_SelectOutputTrigger(TIM1_TRGOSource_Update);
/* TIM2 configuration:
- TIM2 is connected to TIM1 Update so TIM2CLK is equal to
TIM1 output clock / (TIM1_REPETITION_COUNTER + 1) = 488.28 / 5 = 97.65 Hz
- TIM2 Prescaler is equal to 1 so the TIM2 counter clock used is 97.65 / 1 = 97.65 Hz
- TIM2 Channel 1 output frequency = TIM2CLK / (TIM2_PERIOD + 1) * TIM2_Prescaler
= 97.65 / 3 * 1 = 32.55 Hz */
/* Time Base configuration */
TIM2_TimeBaseInit(TIM2_Prescaler_1, TIM2_CounterMode_Up, TIM2_PERIOD);
TIM2_OC1Init(TIM2_OCMode_PWM2, TIM2_OutputState_Enable, TIM2_CCR1_VAL,
TIM2_OCPolarity_Low, TIM2_OCIdleState_Reset);
/* TIM2 Slave Mode selection: Gated mode */
TIM2_SelectSlaveMode(TIM2_SlaveMode_Gated);
TIM2_SelectInputTrigger(TIM2_TRGSelection_TIM1);
/* TIM3 configuration:
- TIM3 is connected to TIM1 Update so TIM3CLK is equal to
TIM1 output clock / (TIM1_REPETITION_COUNTER + 1) = 488.28 / 5 = 97.65 Hz
- TIM3 Prescaler is equal to 1 so the TIM3 counter clock used is 97.65 / 1 = 97.65 Hz
- TIM3 Channel 1 output frequency = TIM3CLK / (TIM3_PERIOD + 1) * TIM3Prescaler
= 97.65 / 4 * 1 = 24.41 Hz */
/* Time Base configuration */
TIM3_TimeBaseInit(TIM3_Prescaler_1, TIM3_CounterMode_Up, TIM3_PERIOD);
TIM3_OC1Init(TIM3_OCMode_PWM2, TIM3_OutputState_Enable, TIM3_CCR1_VAL,
TIM3_OCPolarity_Low, TIM3_OCIdleState_Reset);
/* TIM3 Slave Mode selection: Gated mode */
TIM3_SelectSlaveMode(TIM3_SlaveMode_Gated);
TIM3_SelectInputTrigger(TIM3_TRGSelection_TIM1);
/* Main Output Enable */
TIM1_CtrlPWMOutputs(ENABLE);
TIM2_CtrlPWMOutputs(ENABLE);
TIM3_CtrlPWMOutputs(ENABLE);
/* TIM2 counter enable */
TIM2_Cmd(ENABLE);
/* TIM3 counter enable */
TIM3_Cmd(ENABLE);
/* TIM1 counter enable */
TIM1_Cmd(ENABLE);
}
