5.运行STM32N6 的TIMER并测试

1万 · 2025-3-13 14:50

本帖最后由一路向北lm 于 2025-3-13 14:52 编辑

添加bsp外设进行管理，新建bsp_timer.c 和.h文件，具体内容如下：bsp_timer.c

#include "bsp_timer.h"



#include "bsp_led.h"

#include "bsp_uart.h"



TIM_HandleTypeDef htim2;



void bsp_timer_init(void)

{

  TIM_ClockConfigTypeDef sClockSourceConfig = {0};

  TIM_MasterConfigTypeDef sMasterConfig = {0};



 

  htim2.Instance = TIM2;

  htim2.Init.Prescaler = PRESCALER_VALUE;

  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;

  htim2.Init.Period = PERIOD_VALUE;

  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;

  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;

  HAL_TIM_Base_Init(&htim2); 

  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;

  HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig); 

  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;

  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;

  HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig);

        HAL_TIM_Base_Start_IT(&htim2);

}

void TIM2_IRQHandler(void)

{

  /* USER CODE BEGIN TIM2_IRQn 0 */



  /* USER CODE END TIM2_IRQn 0 */

  HAL_TIM_IRQHandler(&htim2);

  /* USER CODE BEGIN TIM2_IRQn 1 */



  /* USER CODE END TIM2_IRQn 1 */

}



void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)

{

           LED1_TOGGLE();

                 LED2_TOGGLE();

                 printf("led running ...\n\r");

    //BSP_LED_Toggle(LED1);

}

bsp_timer.h

复制

#ifndef __BSP_TIMER_H__

#define __BSP_TIMER_H__



#include "stm32n6xx_hal.h"





/* Compute the prescaler value to have TIMx counter clock equal to 10000 Hz */

#define PRESCALER_VALUE (uint32_t)(((400000000) / (10000)) - 1)



  /* Initialize TIMx peripheral as follows:

       + Period = 10000 - 1

       + Prescaler = (400000000/10000) - 1

       + ClockDivision = 0

       + Counter direction = Up

  */



#define PERIOD_VALUE (10000 - 1);





void bsp_timer_init(void);







#endif