void pwmout_init(pwmout_t* obj, PinName pin)
{
// Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
MBED_ASSERT(obj->pwm != (PWMName)NC);
// Get the pin function and assign the used channel to the object
uint32_t function = pinmap_function(pin, PinMap_PWM);
MBED_ASSERT(function != (uint32_t)NC);
obj->channel = STM_PIN_CHANNEL(function);
obj->inverted = STM_PIN_INVERTED(function);
// Enable TIM clock
if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE();
#if defined(TIM3_BASE)
if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE();
#endif
if (obj->pwm == PWM_21) __TIM21_CLK_ENABLE();
#if defined(TIM22_BASE)
if (obj->pwm == PWM_22) __TIM22_CLK_ENABLE();
#endif
// Configure GPIO
pinmap_pinout(pin, PinMap_PWM);
obj->pin = pin;
obj->period = 0;
obj->pulse = 0;
pwmout_period_us(obj, 20000); // 20 ms per default
}
void pwmout_init(pwmout_t* obj, PinName pin)
{
// Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
if (obj->pwm == (PWMName)NC) {
error("PWM error: pinout mapping failed.");
}
// Enable TIM clock
if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE();
#if defined(TIM3_BASE)
if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE();
#endif
if (obj->pwm == PWM_21) __TIM21_CLK_ENABLE();
if (obj->pwm == PWM_22) __TIM22_CLK_ENABLE();
// Configure GPIO
pinmap_pinout(pin, PinMap_PWM);
obj->pin = pin;
obj->period = 0;
obj->pulse = 0;
pwmout_period_us(obj, 20000); // 20 ms per default
}
void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef* htim_base) {
GPIO_InitTypeDef GPIO_InitStruct;
if (htim_base->Instance == TIM21) {
__TIM21_CLK_ENABLE();
/**TIM21 GPIO Configuration
PB13 ------> TIM21_CH1
PB14 ------> TIM21_CH2
*/
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF6_TIM21;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
}
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) {
GPIO_InitTypeDef GPIO_InitStruct;
if(htim_base->Instance==TIM2) {
__TIM2_CLK_ENABLE();
/**TIM1 GPIO Configuration
PA0 ------> TIM2_CH1
*/
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF2_TIM2;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
if(htim_base->Instance==TIM21)
__TIM21_CLK_ENABLE();
}
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* htim_pwm)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(htim_pwm->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspInit 0 */
/* USER CODE END TIM2_MspInit 0 */
/* Peripheral clock enable */
__TIM2_CLK_ENABLE();
/**TIM2 GPIO Configuration
PA0 ------> TIM2_CH1
PA1 ------> TIM2_CH2
PB10 ------> TIM2_CH3
PB11 ------> TIM2_CH4
*/
GPIO_InitStruct.Pin = fet_ctrl_3a_Pin|fet_ctrl_3b_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF2_TIM2;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = fet_ctrl_4a_Pin|fet_ctrl_4b_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF2_TIM2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral DMA init*/
hdma_tim2_ch1.Instance = DMA1_Channel5;
hdma_tim2_ch1.Init.Request = DMA_REQUEST_8;
hdma_tim2_ch1.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tim2_ch1.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tim2_ch1.Init.MemInc = DMA_MINC_ENABLE;
hdma_tim2_ch1.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_tim2_ch1.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_tim2_ch1.Init.Mode = DMA_CIRCULAR;
hdma_tim2_ch1.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_tim2_ch1);
__HAL_LINKDMA(htim_pwm,hdma[TIM_DMA_ID_CC1],hdma_tim2_ch1);
hdma_tim2_ch2.Instance = DMA1_Channel3;
hdma_tim2_ch2.Init.Request = DMA_REQUEST_8;
hdma_tim2_ch2.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tim2_ch2.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tim2_ch2.Init.MemInc = DMA_MINC_ENABLE;
hdma_tim2_ch2.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_tim2_ch2.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_tim2_ch2.Init.Mode = DMA_CIRCULAR;
hdma_tim2_ch2.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_tim2_ch2);
__HAL_LINKDMA(htim_pwm,hdma[TIM_DMA_ID_CC2],hdma_tim2_ch2);
hdma_tim2_ch3.Instance = DMA1_Channel1;
hdma_tim2_ch3.Init.Request = DMA_REQUEST_8;
hdma_tim2_ch3.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tim2_ch3.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tim2_ch3.Init.MemInc = DMA_MINC_ENABLE;
hdma_tim2_ch3.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_tim2_ch3.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_tim2_ch3.Init.Mode = DMA_CIRCULAR;
hdma_tim2_ch3.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_tim2_ch3);
__HAL_LINKDMA(htim_pwm,hdma[TIM_DMA_ID_CC3],hdma_tim2_ch3);
hdma_tim2_ch4.Instance = DMA1_Channel4;
hdma_tim2_ch4.Init.Request = DMA_REQUEST_8;
hdma_tim2_ch4.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tim2_ch4.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tim2_ch4.Init.MemInc = DMA_MINC_ENABLE;
hdma_tim2_ch4.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_tim2_ch4.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_tim2_ch4.Init.Mode = DMA_CIRCULAR;
hdma_tim2_ch4.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_tim2_ch4);
__HAL_LINKDMA(htim_pwm,hdma[TIM_DMA_ID_CC4],hdma_tim2_ch4);
/* USER CODE BEGIN TIM2_MspInit 1 */
/* USER CODE END TIM2_MspInit 1 */
}
else if(htim_pwm->Instance==TIM21)
{
/* USER CODE BEGIN TIM21_MspInit 0 */
/* USER CODE END TIM21_MspInit 0 */
/* Peripheral clock enable */
__TIM21_CLK_ENABLE();
/**TIM21 GPIO Configuration
PB13 ------> TIM21_CH1
PB14 ------> TIM21_CH2
*/
GPIO_InitStruct.Pin = dchg_ctrl_3_Pin|dchg_ctrl_4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF6_TIM21;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN TIM21_MspInit 1 */
/* USER CODE END TIM21_MspInit 1 */
}
}
