STM32F103ZET6使用串口发送字符串控制灯和蜂鸣器

好的，我可以帮你解答这个问题。首先，你需要在STM32F103ZET6上配置串口通信的相关参数，包括波特率、数据位、停止位和校验位等。然后，你可以通过串口发送指令来控制灯和蜂鸣器的状态。

以下是一个示例代码，用于通过串口发送字符串控制灯和蜂鸣器：

#include "stm32f10x.h"
#include <stdio.h>
#include <string.h>

#define LED_PIN    GPIO_Pin_13
#define LED_PORT   GPIOC
#define BEEP_PIN   GPIO_Pin_8
#define BEEP_PORT  GPIOB

void USART1_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 9600;
    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 LED_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

    GPIO_InitStructure.GPIO_Pin = LED_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(LED_PORT, &GPIO_InitStructure);

    GPIO_SetBits(LED_PORT, LED_PIN);
}

void BEEP_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = BEEP_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(BEEP_PORT, &GPIO_InitStructure);

    GPIO_ResetBits(BEEP_PORT, BEEP_PIN);
}

void USART1_SendString(char* str)
{
    while (*str)
    {
        while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
        USART_SendData(USART1, *str++);
    }
}

int main(void)
{
    USART1_Init();
    LED_Init();
    BEEP_Init();

    while (1)
    {
        char buffer[50];
        fgets(buffer, sizeof(buffer), stdin);

        if (strcmp(buffer, "LED_ON\n") == 0)
        {
            GPIO_ResetBits(LED_PORT, LED_PIN);
            USART1_SendString("LED is ON\n");
        }
        else if (strcmp(buffer, "LED_OFF\n") == 0)
        {
            GPIO_SetBits(LED_PORT, LED_PIN);
            USART1_SendString("LED is OFF\n");
        }
        else if (strcmp(buffer, "BEEP_ON\n") == 0)
        {
            GPIO_SetBits(BEEP_PORT, BEEP_PIN);
            USART1_SendString("BEEP is ON\n");
        }
        else if (strcmp(buffer, "BEEP_OFF\n") == 0)
        {
            GPIO_ResetBits(BEEP_PORT, BEEP_PIN);
            USART1_SendString("BEEP is OFF\n");
        }
        else
        {
            USART1_SendString("Invalid command\n");
        }
    }
}

在这个示例代码中，我们使用USART1作为串口通信的通道，通过输入控制语句，来控制LED和蜂鸣器的状态。您可以通过上位机发送相应的指令来控制LED和蜂鸣器的状态，例如发送“LED_ON”指令来打开LED灯，发送“BEEP_OFF”指令来关闭蜂鸣器。

请注意，此代码仅供参考，实际应用中需要根据具体需求进行修改。同时，您需要根据您的具体硬件连接情况，修改代码中的引脚定义等参数。