帮我写一个使用STM32控制SIM900A发送短信的代码
时间: 2023-03-24 20:04:50 浏览: 134
好的,以下是使用STM32控制SIM900A发送短信的代码:
#include "stm32f10x.h"
#include "stdio.h"
#define SIM900A_TX_BUFFER_SIZE 128
#define SIM900A_RX_BUFFER_SIZE 128
char SIM900A_TX_Buffer[SIM900A_TX_BUFFER_SIZE];
char SIM900A_RX_Buffer[SIM900A_RX_BUFFER_SIZE];
void SIM900A_SendCommand(char* command);
void SIM900A_SendTextMessage(char* phoneNumber, char* message);
int main(void)
{
// 初始化串口
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 960;
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);
// 初始化SIM900A
SIM900A_SendCommand("AT+CMGF=1\r\n"); // 设置短信格式为文本模式
SIM900A_SendCommand("AT+CNMI=2,2,,,\r\n"); // 设置接收短信的方式为自动接收
// 发送短信
SIM900A_SendTextMessage("13800138000", "Hello, world!");
while (1)
{
// 接收串口数据
if (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET)
{
char ch = USART_ReceiveData(USART1);
// 处理接收到的数据
}
}
}
void SIM900A_SendCommand(char* command)
{
// 发送AT指令
sprintf(SIM900A_TX_Buffer, "%s", command);
USART_SendString(USART1, SIM900A_TX_Buffer);
// 等待SIM900A返回OK
while (1)
{
SIM900A_RX_Buffer[] = '\';
USART_ReceiveString(USART1, SIM900A_RX_Buffer, SIM900A_RX_BUFFER_SIZE);
if (strstr(SIM900A_RX_Buffer, "OK") != NULL)
{
break;
}
}
}
void SIM900A_SendTextMessage(char* phoneNumber, char* message)
{
// 发送短信
sprintf(SIM900A_TX_Buffer, "AT+CMGS=\"%s\"\r\n", phoneNumber);
USART_SendString(USART1, SIM900A_TX_Buffer);
USART_SendString(USART1, message);
USART_SendData(USART1, x1A); // 发送Ctrl+Z结束短信
// 等待SIM900A返回OK
while (1)
{
SIM900A_RX_Buffer[] = '\';
USART_ReceiveString(USART1, SIM900A_RX_Buffer, SIM900A_RX_BUFFER_SIZE);
if (strstr(SIM900A_RX_Buffer, "OK") != NULL)
{
break;
}
}
}