/**
* @brief Initializes the TIM4 Time Base Unit according to the specified parameters.
* @param TIM4_Prescaler : This parameter can be any of the @Ref TIM2_Prescaler_TypeDef enumeration.
* @param TIM4_Period : This parameter must be a value between 0x00 and 0xFF.
* @retval None
*/
void TIM4_TimeBaseInit(TIM4_Prescaler_TypeDef TIM4_Prescaler,
uint8_t TIM4_Period)
{
/* Check TIM4 prescaler value */
assert_param(IS_TIM4_Prescaler(TIM4_Prescaler));
/* Set the Autoreload value */
TIM4->ARR = (uint8_t)(TIM4_Period);
/* Set the Prescaler value */
TIM4->PSCR = (uint8_t)(TIM4_Prescaler);
}
/**
* @brief Initializes the TIM4 Time Base Unit according to the specified parameters.
* @param TIM4_Prescaler: Prescaler
* This parameter can be one of the following values:
* @arg TIM4_Prescaler_1: Time base Prescaler = 1 (No effect)
* @arg TIM4_Prescaler_2: Time base Prescaler = 2
* @arg TIM4_Prescaler_4: Time base Prescaler = 4
* @arg TIM4_Prescaler_8: Time base Prescaler = 8
* @arg TIM4_Prescaler_16: Time base Prescaler = 16
* @arg TIM4_Prescaler_32: Time base Prescaler = 32
* @arg TIM4_Prescaler_64: Time base Prescaler = 64
* @arg TIM4_Prescaler_128: Time base Prescaler = 128
* @arg TIM4_Prescaler_256: Time base Prescaler = 256
* @arg TIM4_Prescaler_512: Time base Prescaler = 512
* @arg TIM4_Prescaler_1024: Time base Prescaler = 1024
* @arg TIM4_Prescaler_2048: Time base Prescaler = 2048
* @arg TIM4_Prescaler_4096: Time base Prescaler = 4096
* @arg TIM4_Prescaler_8192: Time base Prescaler = 8192
* @arg TIM4_Prescaler_16384: Time base Prescaler = 16384
* @arg TIM4_Prescaler_32768: Time base Prescaler = 32768
* @param TIM4_Period: This parameter must be a value between 0x00 and 0xFF.
* @retval None
*/
void TIM4_TimeBaseInit(TIM4_Prescaler_TypeDef TIM4_Prescaler,
uint8_t TIM4_Period)
{
/* Check TIM4 prescaler value */
assert_param(IS_TIM4_Prescaler(TIM4_Prescaler));
/* Set the Autoreload value */
TIM4->ARR = (uint8_t)(TIM4_Period);
/* Set the Prescaler value */
TIM4->PSCR = (uint8_t)(TIM4_Prescaler);
/* Generate an update event to reload the Prescaler value immediately */
TIM4->EGR = TIM4_EventSource_Update;
}
/**
* @brief Configures the TIM4 Prescaler.
* @param Prescaler: Specifies the Prescaler Register value
* This parameter can be one of the following values:
* @arg TIM4_Prescaler_1: Time base Prescaler = 1 (No effect)
* @arg TIM4_Prescaler_2: Time base Prescaler = 2
* @arg TIM4_Prescaler_4: Time base Prescaler = 4
* @arg TIM4_Prescaler_8: Time base Prescaler = 8
* @arg TIM4_Prescaler_16: Time base Prescaler = 16
* @arg TIM4_Prescaler_32: Time base Prescaler = 32
* @arg TIM4_Prescaler_64: Time base Prescaler = 64
* @arg TIM4_Prescaler_128: Time base Prescaler = 128
* @arg TIM4_Prescaler_256: Time base Prescaler = 256
* @arg TIM4_Prescaler_512: Time base Prescaler = 512
* @arg TIM4_Prescaler_1024: Time base Prescaler = 1024
* @arg TIM4_Prescaler_2048: Time base Prescaler = 2048
* @arg TIM4_Prescaler_4096: Time base Prescaler = 4096
* @arg TIM4_Prescaler_8192: Time base Prescaler = 8192
* @arg TIM4_Prescaler_16384: Time base Prescaler = 16384
* @arg TIM4_Prescaler_32768: Time base Prescaler = 32768
* @param TIM4_PSCReloadMode: Specifies the TIM4 Prescaler Reload mode.
* This parameter can be one of the following values:
* @arg TIM4_PSCReloadMode_Update: Prescaler value is reloaded at every update
* @arg TIM4_PSCReloadMode_Immediate: Prescaler value is reloaded immediatly
* @retval None
*/
void TIM4_PrescalerConfig(TIM4_Prescaler_TypeDef Prescaler,
TIM4_PSCReloadMode_TypeDef TIM4_PSCReloadMode)
{
/* Check the parameters */
assert_param(IS_TIM4_Prescaler_RELOAD(TIM4_PSCReloadMode));
assert_param(IS_TIM4_Prescaler(Prescaler));
/* Set the Prescaler value */
TIM4->PSCR = (uint8_t) Prescaler;
/* Set or reset the UG Bit */
if (TIM4_PSCReloadMode == TIM4_PSCReloadMode_Immediate) {
TIM4->EGR |= TIM4_EGR_UG ;
} else {
TIM4->EGR &= (uint8_t)(~TIM4_EGR_UG) ;
}
}
