stm32f103c8t6通过串口发送at指令代码

以下是通过串口发送AT指令的示例代码，你可以根据自己的实际情况进行修改。

#include "stm32f10x.h"

USART_InitTypeDef USART_InitStructure;

void USART_Configuration(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);

    GPIO_InitTypeDef GPIO_InitStructure;
    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 = 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 USART_Send_AT_Command(char* command)
{
    while(*command)
    {
        USART_SendData(USART1, *command++);
        while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
    }
}

int main(void)
{
    USART_Configuration();

    char* command = "AT\r\n";
    USART_Send_AT_Command(command);

    while(1);

    return 0;
}