stm32学习笔记---计数器定时中断(1s)

 


#include "tim_driver.h"


//tim2³õʼ»¯:1ÃëÖÓ¸üÐÂÊý¾Ý
void tim2_init(void)
{
	TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
	
	//ʹÄÜʱÖÓ
	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);
	
	//ʹÄÜUPDATAµÄÖжÏÅäÖÃλ
	TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
	
	//¶¨Ê±Æ÷ʹÄÜ
	TIM_Cmd(TIM2,ENABLE);
}

//tim2Öжϳõʼ»¯
void tim2_NVIC_init(void)
{
	NVIC_InitTypeDef NVIC_InitStru
STM321S #include "stm32f10x_it.h" /** @addtogroup STM32F10x_StdPeriph_Template * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ extern u32 SystickCounter; extern u8 KeySwitch_Press; extern u8 KeyAdjust_Press; #define TRUE 1 #define FALSE 0 /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /******************************************************************************/ /* Cortex-M3 Processor Exceptions Handlers */ /******************************************************************************/ /** * @brief This function handles NMI exception. * @param None * @retval None */ void NMI_Handler(void) { } /** * @brief This function handles Hard Fault exception. * @param None * @retval None */ void HardFault_Handler(void) { /* Go to infinite loop when Hard Fault exception occurs */ while (1) { } } /** * @brief This function handles Memory Manage exception. * @param None * @retval None */ void MemManage_Handler(void) { /* Go to infinite loop when Memory Manage exception occurs */ while (1) { } } /** * @brief This function handles Bus Fault exception. * @param None * @retval None */ void BusFault_Handler(void) { /* Go to infinite loop when Bus Fault exception occurs */ while (1) { } } /** * @brief This function handles Usage Fault exception. * @param None * @retval None */ void UsageFault_Handler(void) { /* Go to infinite loop when Usage Fault exception occurs */ while (1) { } } /** * @brief This function handles SVCall exception. * @param None * @ret
评论 1
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值