基于stm32的入侵检测报警器代码
时间: 2023-08-15 14:05:00 浏览: 44
以下是基于STM32的入侵检测报警器的代码示例,仅供参考。
```c
#include "stm32f10x.h"
#define SENSOR_PORT GPIOA
#define SENSOR_PIN GPIO_Pin_0
#define ALARM_PORT GPIOA
#define ALARM_PIN GPIO_Pin_1
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
// 配置传感器引脚为输入模式
GPIO_InitStructure.GPIO_Pin = SENSOR_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(SENSOR_PORT, &GPIO_InitStructure);
// 配置报警器引脚为输出模式
GPIO_InitStructure.GPIO_Pin = ALARM_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(ALARM_PORT, &GPIO_InitStructure);
}
void TIM_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
// 配置定时器2,每秒钟触发一次中断
TIM_InitStructure.TIM_Period = 999;
TIM_InitStructure.TIM_Prescaler = 7199;
TIM_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_InitStructure);
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM2, ENABLE);
}
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
// 配置USART1,波特率为115200
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void TIM2_IRQHandler(void)
{
if (GPIO_ReadInputDataBit(SENSOR_PORT, SENSOR_PIN) == Bit_SET)
{
// 检测到入侵,触发报警器
GPIO_SetBits(ALARM_PORT, ALARM_PIN);
// 发送入侵信号到上位机
USART_SendData(USART1, 'I');
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
}
else
{
// 没有入侵,关闭报警器
GPIO_ResetBits(ALARM_PORT, ALARM_PIN);
}
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
}
int main(void)
{
GPIO_Configuration();
TIM_Configuration();
USART_Configuration();
NVIC_Configuration();
while(1)
{
}
}
```
以上代码实现了一个简单的入侵检测报警器,通过定时器2每秒钟触发一次中断,读取传感器的状态,如果检测到入侵信号,则触发报警器并通过USART1发送入侵信号到上位机。如果没有检测到入侵信号,则关闭报警器。需要注意的是,此代码仅供参考,实际应用中需要根据具体需求进行修改和完善。
相关推荐
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![pptx](https://img-home.csdnimg.cn/images/20210720083543.png)