unleashed-firmware/firmware/targets/f3/api-hal/api-hal-pwm.c
DrZlo13 9d8c36810e
IR RX simple app (#218)
* split falling and rising ir rx events
* fix irda
* simple irda rx function for app
* add extern timer
* fix timer num for f2
2020-11-11 10:36:27 +03:00

57 lines
No EOL
2.1 KiB
C

#include "api-hal-pwm.h"
void hal_pwm_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel) {
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
tim->Init.Period = (uint32_t)((SystemCoreClock / (tim->Init.Prescaler + 1)) / freq);
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
HAL_TIM_PWM_Init(tim);
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = (uint16_t)(tim->Init.Period * value);
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
HAL_TIM_PWM_ConfigChannel(tim, &sConfigOC, channel);
HAL_TIM_PWM_Start(tim, channel);
}
void hal_pwmn_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel) {
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
tim->Init.Period = (uint32_t)((SystemCoreClock / (tim->Init.Prescaler + 1)) / freq - 1);
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
HAL_TIM_PWM_Init(tim);
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = (uint16_t)(tim->Init.Period * value);
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
HAL_TIM_PWM_ConfigChannel(tim, &sConfigOC, channel);
HAL_TIMEx_PWMN_Start(tim, channel);
}
void hal_pwm_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
HAL_TIM_PWM_Stop(tim, channel);
}
void hal_pwmn_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
HAL_TIMEx_PWMN_Stop(tim, channel);
}
void irda_pwm_set(float value, float freq){
hal_pwmn_set(value, freq, &IRDA_TX_TIM, IRDA_TX_CH);
}
void irda_pwm_stop(){
hal_pwmn_stop(&IRDA_TX_TIM, IRDA_TX_CH);
}