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 defined(TIM1_BASE)
if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE();
#endif
#if defined(TIM2_BASE)
if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE();
#endif
if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE();
if (obj->pwm == PWM_14) __TIM14_CLK_ENABLE();
if (obj->pwm == PWM_15) __TIM15_CLK_ENABLE();
if (obj->pwm == PWM_16) __TIM16_CLK_ENABLE();
if (obj->pwm == PWM_17) __TIM17_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_Base_MspInit(TIM_HandleTypeDef* htim_base)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(htim_base->Instance==TIM3)
{
/* Peripheral clock enable */
__TIM3_CLK_ENABLE();
/**TIM3 GPIO Configuration
PA6 ------> TIM3_CH1
*/
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_TIM3;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
else if(htim_base->Instance==TIM14)
{
/* Peripheral clock enable */
__TIM14_CLK_ENABLE();
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(TIM14_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(TIM14_IRQn);
}
}
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(htim_base->Instance==TIM14)
{
/* USER CODE BEGIN TIM14_MspInit 0 */
/* USER CODE END TIM14_MspInit 0 */
/* Peripheral clock enable */
__TIM14_CLK_ENABLE();
/**TIM14 GPIO Configuration
PA4 ------> TIM14_CH1
*/
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_TIM14;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USER CODE BEGIN TIM14_MspInit 1 */
/* USER CODE END TIM14_MspInit 1 */
}
else if(htim_base->Instance==TIM17)
{
/* USER CODE BEGIN TIM17_MspInit 0 */
/* USER CODE END TIM17_MspInit 0 */
/* Peripheral clock enable */
__TIM17_CLK_ENABLE();
/* System interrupt init*/
HAL_NVIC_SetPriority(TIM17_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(TIM17_IRQn);
/* USER CODE BEGIN TIM17_MspInit 1 */
/* USER CODE END TIM17_MspInit 1 */
}
}