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STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例8 PWM输出/HARDWARE/TIMER/timer.c

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新增开发版例程
2021-07-28 13:15:22 +08:00
#include "timer.h"
#include "led.h"
//////////////////////////////////////////////////////////////////////////////////
/************************************************************************************/
//<2F><>ʱ<EFBFBD><CAB1><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
//////////////////////////////////////////////////////////////////////////////////
TIM_HandleTypeDef TIM3_Handler; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
TIM_OC_InitTypeDef TIM3_CH4Handler; //<2F><>ʱ<EFBFBD><CAB1>3ͨ<33><CDA8>4<EFBFBD><34><EFBFBD><EFBFBD>
/************************************************************************************/
//ͨ<>ö<EFBFBD>ʱ<EFBFBD><CAB1>3<EFBFBD>жϳ<D0B6>ʼ<EFBFBD><CABC>,<2C><>ʱ<EFBFBD><CAB1>3<EFBFBD><33>APB1<42>ϣ<EFBFBD>APB1<42>Ķ<EFBFBD>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1>Ϊ200MHz
//arr<72><72><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>װֵ<D7B0><D6B5>
//psc<73><63>ʱ<EFBFBD><CAB1>Ԥ<EFBFBD><D4A4>Ƶ<EFBFBD><C6B5>
//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>㷽<EFBFBD><E3B7BD>:Tout=((arr+1)*(psc+1))/Ft us.
//Ft=<3D><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5>,<2C><>λ:Mhz
//<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5>Ƕ<EFBFBD>ʱ<EFBFBD><CAB1>3!(<28><>ʱ<EFBFBD><CAB1>3<EFBFBD><33><EFBFBD><EFBFBD>APB1<42>ϣ<EFBFBD>ʱ<EFBFBD><CAB1>ΪHCLK/2)
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void TIM3_Init(u16 arr,u16 psc)
{
TIM3_Handler.Instance=TIM3; //ͨ<>ö<EFBFBD>ʱ<EFBFBD><CAB1>3
TIM3_Handler.Init.Prescaler=psc; //<2F><>Ƶ
TIM3_Handler.Init.CounterMode=TIM_COUNTERMODE_UP; //<2F><><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD><EFBFBD><EFBFBD>
TIM3_Handler.Init.Period=arr; //<2F>Զ<EFBFBD>װ<EFBFBD><D7B0>ֵ
TIM3_Handler.Init.ClockDivision=TIM_CLOCKDIVISION_DIV1;//ʱ<>ӷ<EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>
HAL_TIM_Base_Init(&TIM3_Handler);
HAL_TIM_Base_Start_IT(&TIM3_Handler); //ʹ<>ܶ<EFBFBD>ʱ<EFBFBD><CAB1>3<EFBFBD>Ͷ<EFBFBD>ʱ<EFBFBD><CAB1>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6>TIM_IT_UPDATE
}
/************************************************************************************/
//TIM3 PWM<57><4D><EFBFBD>ֳ<EFBFBD>ʼ<EFBFBD><CABC>
//PWM<57><4D><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
//arr<72><72><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>װֵ
//psc<73><63>ʱ<EFBFBD><CAB1>Ԥ<EFBFBD><D4A4>Ƶ<EFBFBD><C6B5>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void TIM3_PWM_Init(u16 arr,u16 psc)
{
TIM3_Handler.Instance=TIM3; //<2F><>ʱ<EFBFBD><CAB1>3
TIM3_Handler.Init.Prescaler=psc; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ƶ
TIM3_Handler.Init.CounterMode=TIM_COUNTERMODE_UP;//<2F><><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD>ģʽ
TIM3_Handler.Init.Period=arr; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
TIM3_Handler.Init.ClockDivision=TIM_CLOCKDIVISION_DIV1;
HAL_TIM_PWM_Init(&TIM3_Handler); //<2F><>ʼ<EFBFBD><CABC>PWM
TIM3_CH4Handler.OCMode=TIM_OCMODE_PWM1; //ģʽѡ<CABD><D1A1>PWM1
TIM3_CH4Handler.Pulse=arr/2; //<2F><><EFBFBD>ñȽ<C3B1>ֵ,<2C><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7>ռ<EFBFBD>ձȣ<D5B1>
//Ĭ<>ϱȽ<CFB1>ֵΪ<D6B5>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ<EFBFBD><D6B5>һ<EFBFBD><D2BB>,<2C><>ռ<EFBFBD>ձ<EFBFBD>Ϊ50%
TIM3_CH4Handler.OCPolarity=TIM_OCPOLARITY_LOW; //<2F><><EFBFBD><EFBFBD><EFBFBD>Ƚϼ<C8BD><CFBC><EFBFBD>Ϊ<EFBFBD><CEAA>
HAL_TIM_PWM_ConfigChannel(&TIM3_Handler,&TIM3_CH4Handler,TIM_CHANNEL_4);//<2F><><EFBFBD><EFBFBD>TIM3ͨ<33><CDA8>4
HAL_TIM_PWM_Start(&TIM3_Handler,TIM_CHANNEL_4);//<2F><><EFBFBD><EFBFBD>PWMͨ<4D><CDA8>4
}
/************************************************************************************/
//<2F><>ʱ<EFBFBD><CAB1><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_TIM_PWM_Init()<29><><EFBFBD><EFBFBD>
//htim:<3A><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef *htim)
{
GPIO_InitTypeDef GPIO_Initure;
__HAL_RCC_TIM3_CLK_ENABLE(); //ʹ<>ܶ<EFBFBD>ʱ<EFBFBD><CAB1>3
__HAL_RCC_GPIOB_CLK_ENABLE(); //<2F><><EFBFBD><EFBFBD>GPIOBʱ<42><CAB1>
GPIO_Initure.Pin=GPIO_PIN_1; //PB1
GPIO_Initure.Mode=GPIO_MODE_AF_PP; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
GPIO_Initure.Pull=GPIO_PULLUP; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Alternate=GPIO_AF2_TIM3; //PB1<42><31><EFBFBD><EFBFBD>ΪTIM3_CH4
HAL_GPIO_Init(GPIOB,&GPIO_Initure);
}
/************************************************************************************/
//<2F><>ʱ<EFBFBD><CAB1><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ȼ<EFBFBD>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_TIM_Base_Init()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim)
{
if(htim->Instance==TIM3)
{
__HAL_RCC_TIM3_CLK_ENABLE(); //ʹ<><CAB9>TIM3ʱ<33><CAB1>
HAL_NVIC_SetPriority(TIM3_IRQn,1,3); //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3
HAL_NVIC_EnableIRQ(TIM3_IRQn); //<2F><><EFBFBD><EFBFBD>ITM3<4D>ж<EFBFBD>
}
}
/************************************************************************************/
//<2F><>ʱ<EFBFBD><CAB1>3<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void TIM3_IRQHandler(void)
{
HAL_TIM_IRQHandler(&TIM3_Handler);
}
/************************************************************************************/
//<2F><>ʱ<EFBFBD><CAB1>3<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if(htim==(&TIM3_Handler))
{
LED2_Toggle; //LED0<44><30>ת
}
}
/************************************************************************************/
//<2F><><EFBFBD><EFBFBD>TIMͨ<4D><CDA8>4<EFBFBD><34>ռ<EFBFBD>ձ<EFBFBD>
//compare:<3A>Ƚ<EFBFBD>ֵ
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
void TIM_SetTIM3Compare4(u32 compare)
{
TIM3->CCR4=compare;
}
/************************************************************************************/
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/************************************************************************************/
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