kopia lustrzana https://github.com/skuep/AIOC
32 wiersze
1015 B
C
32 wiersze
1015 B
C
|
#include "led.h"
|
||
|
|
#include "stm32f3xx_hal.h"
|
||
|
|
|
||
|
|
void LED_Init(void)
|
||
|
|
{
|
||
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||
|
|
|
||
|
|
/* Configure LED pins as TIM4 CH3/CH4 */
|
||
|
|
GPIO_InitTypeDef GpioLedInit = {
|
||
|
|
.Pin = LED_GPIO_PIN1 | LED_GPIO_PIN2,
|
||
|
|
.Mode = GPIO_MODE_AF_PP,
|
||
|
|
.Pull = GPIO_NOPULL,
|
||
|
|
.Speed = GPIO_SPEED_FREQ_LOW,
|
||
|
|
.Alternate = GPIO_AF2_TIM4
|
||
|
|
};
|
||
|
|
|
||
|
|
HAL_GPIO_Init(LED_GPIO, &GpioLedInit);
|
||
|
|
|
||
|
|
/* Initialize Timer */
|
||
|
|
__HAL_RCC_TIM4_CLK_ENABLE();
|
||
|
|
|
||
|
|
LED_TIMER->CR1 = TIM_CLOCKDIVISION_DIV1 | TIM_COUNTERMODE_UP | TIM_AUTORELOAD_PRELOAD_ENABLE;
|
||
|
|
LED_TIMER->ARR = 511;
|
||
|
|
LED_TIMER->PSC = (HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_TIM1) / 500000) - 1;
|
||
|
|
LED_TIMER->CCMR2 = TIM_OCMODE_PWM1 << 8 | TIM_OCMODE_PWM1 | TIM_CCMR2_OC3PE | TIM_CCMR2_OC4PE;
|
||
|
|
LED_TIMER->CCER = (0 << TIM_CCER_CC3P_Pos) | (1 << TIM_CCER_CC4P_Pos) | TIM_CCER_CC3E | TIM_CCER_CC4E;
|
||
|
|
LED_TIMER->CCR3 = 0;
|
||
|
|
LED_TIMER->CCR4 = 512;
|
||
|
|
LED_TIMER->EGR = TIM_EGR_UG;
|
||
|
|
LED_TIMER->CR1 |= TIM_CR1_CEN;
|
||
|
|
}
|