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- /**
- ******************************************************************************
- * @file main.c
- * @author Ac6
- * @version V1.0
- * @date 01-December-2013
- * @brief Default main function.
- ******************************************************************************
- */
- #include "stm32f4xx.h"
- #include "stm32f4_discovery.h"
- #include "stm32f4xx_syscfg.h"
- #include "tm_stm32f4_lis302dl_lis3dsh.h"
- int main(void)
- {
- //===============dioda=================
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
- GPIO_InitTypeDef gpio;
- GPIO_PinAFConfig(GPIOD, GPIO_PinSource12, GPIO_AF_TIM4);
- GPIO_PinAFConfig(GPIOD, GPIO_PinSource13, GPIO_AF_TIM4);
- GPIO_PinAFConfig(GPIOD, GPIO_PinSource14, GPIO_AF_TIM4);
- //GPIO_PinAFConfig(GPIOD, GPIO_PinSource15, GPIO_AF_TIM4);
- gpio.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 ;// GPIO_Pin_15;
- gpio.GPIO_Mode = GPIO_Mode_AF;
- gpio.GPIO_OType = GPIO_OType_PP;
- gpio.GPIO_Speed = GPIO_Speed_100MHz;
- gpio.GPIO_PuPd = GPIO_PuPd_NOPULL;
- GPIO_Init(GPIOD, &gpio);
- //===============timer======================
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
- TIM_TimeBaseInitTypeDef tim1;
- tim1.TIM_Period = 9999;
- tim1.TIM_Prescaler = 83;
- tim1.TIM_ClockDivision = TIM_CKD_DIV1;
- tim1.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInit(TIM4, &tim1);
- //=============PWM========================
- TIM_OCInitTypeDef channel;
- channel.TIM_OCMode = TIM_OCMode_PWM1;
- channel.TIM_OutputState = TIM_OutputState_Enable;
- channel.TIM_Pulse = 0;
- channel.TIM_OCPolarity = TIM_OCPolarity_High;
- //=======================KANAŁY CCR==========================
- TIM_OC1Init(TIM4, &channel);
- TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Enable);
- TIM_OC2Init(TIM4, &channel);
- TIM_OC2PreloadConfig(TIM4, TIM_OCPreload_Enable);
- TIM_OC3Init(TIM4, &channel);
- TIM_OC3PreloadConfig(TIM4, TIM_OCPreload_Enable);
- TIM4->CCR3 = 0;
- TIM4->CCR2 = 0;
- TIM4->CCR1 = 0;
- // TIM_SetCompare2(TIM4,5);
- //TIM4->CCR2 = 10;
- //=====================przerwanie========================
- // ustawienie trybu pracy priorytetów przerwań
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
- NVIC_InitTypeDef nvicTIM4;
- // numer przerwania
- nvicTIM4.NVIC_IRQChannel = TIM4_IRQn;
- // priorytet główny
- nvicTIM4.NVIC_IRQChannelPreemptionPriority = 0x00;
- // subpriorytet
- nvicTIM4.NVIC_IRQChannelSubPriority = 0x00;
- // uruchom dany kanał
- nvicTIM4.NVIC_IRQChannelCmd = ENABLE;
- // zapisz wypełnioną strukturę do rejestrów
- NVIC_Init(&nvicTIM4);
- TIM_ClearITPendingBit(TIM4, TIM_IT_Update);
- TIM_ITConfig(TIM4, TIM_IT_Update|TIM_IT_CC1, ENABLE);
- TIM_Cmd(TIM4, ENABLE);
- while (1)
- {
- }
- }
- void TIM4_IRQHandler(void)
- {
- if(TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
- {
- // miejsce na kod wywoływany w momencie wystąpienia przerwania
- TIM4->CCR1 = TIM4->CCR1 + 20;
- TIM4->CCR2 = TIM4->CCR2 + 20;
- TIM4->CCR3 = TIM4->CCR3 + 20;
- if(TIM4->CCR1 >= 9999)
- {
- TIM4->CCR1 = 0;
- TIM4->CCR2 = 0;
- TIM4->CCR3 = 0;
- }
- // wyzerowanie flagi wyzwolonego przerwania
- TIM_ClearITPendingBit(TIM4, TIM_IT_Update);
- }
- }
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