31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
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/* Includes ----------------------------------------------------------------- */
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#include "bsp\buzzer.h"
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#include <main.h>
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#include <tim.h>
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/* Private define ----------------------------------------------------------- */
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/* Private macro ------------------------------------------------------------ */
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/* Private typedef ---------------------------------------------------------- */
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/* Private variables -------------------------------------------------------- */
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/* Private function -------------------------------------------------------- */
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/* Exported functions ------------------------------------------------------- */
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int8_t BSP_Buzzer_Start(void) {
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if (HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_3) == HAL_OK) return BSP_OK;
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return BSP_ERR;
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}
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int8_t BSP_Buzzer_Set(float freq, float duty_cycle) {
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uint16_t pulse = (uint16_t)(duty_cycle * (float)UINT16_MAX);
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__HAL_TIM_SET_COMPARE(&htim4, TIM_CHANNEL_3, pulse);
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pulse = (uint16_t)freq;
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__HAL_TIM_PRESCALER(&htim4, pulse);
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return BSP_OK;
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}
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int8_t BSP_Buzzer_Stop(void) {
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if (HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_3) == HAL_OK) return BSP_OK;
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return BSP_ERR;
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}
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