stm32学习笔记---计数器定时中断(1s)

最新推荐文章于 2025-06-19 15:58:28 发布

Moonright

最新推荐文章于 2025-06-19 15:58:28 发布

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分类专栏：嵌入式

本文链接：https://blog.youkuaiyun.com/weixin_42471952/article/details/81175053

#include "tim_driver.h"


//tim2³õÊ¼»¯:1ÃëÖÓ¸üÐÂÊý¾Ý
void tim2_init(void)
{
	TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
	
	//Ê¹ÄÜÊ±ÖÓ
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
	
	TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
	TIM_TimeBaseInitStruct.TIM_CounterMode   = TIM_CounterMode_Up;
	TIM_TimeBaseInitStruct.TIM_Period        = 9999;   
	TIM_TimeBaseInitStruct.TIM_Prescaler     = 7199;
	TIM_TimeBaseInit(TIM2, &TIM_TimeBaseInitStruct);
	
	//Ê¹ÄÜUPDATAµÄÖÐ¶ÏÅäÖÃÎ»
	TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
	
	//¶¨Ê±Æ÷Ê¹ÄÜ
	TIM_Cmd(TIM2,ENABLE);
}

//tim2ÖÐ¶Ï³õÊ¼»¯
void tim2_NVIC_init(void)
{
	NVIC_InitTypeDef NVIC_InitStru