stm32f103c8t6+esp01s,keil5编程,请编写基础的wifi.c和wifi.h
时间: 2024-02-28 10:53:37 浏览: 136
以下是一个基础的wifi.c和wifi.h文件,可以在stm32f103c8t6和esp01s模块上使用:
wifi.h:
```c
#ifndef __WIFI_H
#define __WIFI_H
#include "stm32f10x.h"
#define WIFI_USART USART1
void WIFI_Init(void);
void WIFI_SendCommand(char* command);
void WIFI_WaitForResponse(char* response);
```
wifi.c:
```c
#include "wifi.h"
void WIFI_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
// 使能GPIOA、USART1时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);
// 配置PA9为USART1的Tx引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置PA10为USART1的Rx引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置USART1
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);
// 使能USART1
USART_Cmd(USART1, ENABLE);
}
void WIFI_SendCommand(char* command)
{
// 发送命令
USART_SendString(WIFI_USART, command);
}
void WIFI_WaitForResponse(char* response)
{
char buffer[128];
uint8_t i = 0;
uint16_t timeout = 0xFFFF;
while (timeout--)
{
// 接收字符
if (USART_GetFlagStatus(WIFI_USART, USART_FLAG_RXNE) == SET)
{
buffer[i++] = USART_ReceiveData(WIFI_USART);
// 如果接收到了整个response字符串
if (strstr(buffer, response))
{
return;
}
// 如果接收到了ERROR字符串
if (strstr(buffer, "ERROR"))
{
return;
}
// 如果接收到了FAIL字符串
if (strstr(buffer, "FAIL"))
{
return;
}
// 如果接收到了OK字符串
if (strstr(buffer, "OK"))
{
return;
}
// 如果接收到的字符超过了缓冲区大小
if (i >= 128)
{
return;
}
}
}
}
```
这些代码可以通过USART1与ESP01S通信,并且可以发送和接收AT命令。使用时,需要在main函数中先调用`WIFI_Init`函数初始化USART1,并在发送AT命令时调用`WIFI_SendCommand`函数,等待ESP01S响应时调用`WIFI_WaitForResponse`函数。
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