STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例21 DAC测试/HARDWARE/TIMER/timer.c

#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> 


/*********************************************************************************/
//ͨ<>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    
}


/*********************************************************************************/
//<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;        //LED2<44><32>ת
    }
}























/*********************************************************************************/

//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	

/*********************************************************************************/