#include "stm32f10x.h" #include "delay.h" #include "OLED.h" #include "dht11.h" #include "FMQ.h" #include "Serial.h" #include "esp8266.h" #include "stm32f10x_it.h" // 系统时钟配置 void SystemClock_Config(void) { SystemInit(); RCC_DeInit(); RCC_HSEConfig(RCC_HSE_ON); // 添加HSE启动检测 if(!RCC_WaitForHSEStartUp()) { while(1); // HSE启动失败,陷入死循环 } FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); FLASH_SetLatency(FLASH_Latency_2); RCC_HCLKConfig(RCC_SYSCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); RCC_PCLK2Config(RCC_HCLK_Div1); RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); RCC_PLLCmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); while(RCC_GetSYSCLKSource() != 0x08); } // 全局变量 u8 temp, humi; int main(void) { // 系统初始化 SystemClock_Config(); Delay_Init(); OLED_Init(); DHT11_Init(); mfq_Init(); Serial_Init(); // 用于调试的串口 // 显示初始化 OLED_ShowCN(0, 0, "温度:"); // 修改为正确的中文字库函数 OLED_ShowCN(0, 16, "湿度:"); OLED_ShowCN(64, 16, "RH"); OLED_ShowCN(64, 0, "C"); OLED_Update(); // 初始化ESP8266为AP模式 ESP8266_Init(); printf("ESP8266 AP Mode Ready\r\n"); printf("Connect to WiFi: ESP8266wd, Password:123456789\r\n"); printf("Then connect to TCP Server: 192.168.4.1:8080\r\n"); uint32_t lastSendTime = 0; while(1) { // 读取温湿度 if(DHT11_Read_Data(&temp, &humi)) { // 更新显示 OLED_ShowNum(47, 0, temp, 2, OLED_8X16); OLED_ShowNum(47, 16, humi, 2, OLED_8X16); OLED_Update(); // 控制蜂鸣器 fmq(temp, humi); // 串口输出信息 printf("temp=%d, humi=%d RH\r\n", temp, humi); // 准备WiFi发送数据 sprintf(wifi_data, "Temp:%d,Humi:%d\r\n", temp, humi); ESP8266_SendData(wifi_data); } delay_ms(5000); // 5秒更新一次 } } /** ****************************************************************************** * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_conf.h * @author MCD Application Team * @version V3.5.0 * @date 08-April-2011 * @brief Library configuration file. ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F10x_CONF_H #define __STM32F10x_CONF_H /* Includes ------------------------------------------------------------------*/ /* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ #include "stm32f10x_adc.h" #include "stm32f10x_bkp.h" #include "stm32f10x_can.h" #include "stm32f10x_cec.h" #include "stm32f10x_crc.h" #include "stm32f10x_dac.h" #include "stm32f10x_dbgmcu.h" #include "stm32f10x_dma.h" #include "stm32f10x_exti.h" #include "stm32f10x_flash.h" #include "stm32f10x_fsmc.h" #include "stm32f10x_gpio.h" #include "stm32f10x_i2c.h" #include "stm32f10x_iwdg.h" #include "stm32f10x_pwr.h" #include "stm32f10x_rcc.h" #include "stm32f10x_rtc.h" #include "stm32f10x_sdio.h" #include "stm32f10x_spi.h" #include "stm32f10x_tim.h" #include "stm32f10x_usart.h" #include "stm32f10x_wwdg.h" #include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /* Uncomment the line below to expanse the "assert_param" macro in the Standard Peripheral Library drivers code */ /* #define USE_FULL_ASSERT 1 */ /* Exported macro ------------------------------------------------------------*/ #ifdef USE_FULL_ASSERT /** * @brief The assert_param macro is used for function's parameters check. * @param expr: If expr is false, it calls assert_failed function which reports * the name of the source file and the source line number of the call * that failed. If expr is true, it returns no value. * @retval None */ #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) /* Exported functions ------------------------------------------------------- */ void assert_failed(uint8_t* file, uint32_t line); #else #define assert_param(expr) ((void)0) #endif /* USE_FULL_ASSERT */ #endif /* __STM32F10x_CONF_H */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ /** ****************************************************************************** * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c * @author MCD Application Team * @version V3.5.0 * @date 08-April-2011 * @brief Main Interrupt Service Routines. * This file provides template for all exceptions handler and * peripherals interrupt service routine. ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f10x_it.h" volatile uint32_t sysTickUptime = 0; // 添加在文件顶部 /** @addtogroup STM32F10x_StdPeriph_Template * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /******************************************************************************/ /* Cortex-M3 Processor Exceptions Handlers */ /******************************************************************************/ /** * @brief This function handles NMI exception. * @param None * @retval None */ void NMI_Handler(void) { } /** * @brief This function handles Hard Fault exception. * @param None * @retval None */ void HardFault_Handler(void) { /* Go to infinite loop when Hard Fault exception occurs */ while (1) { } } /** * @brief This function handles Memory Manage exception. * @param None * @retval None */ void MemManage_Handler(void) { /* Go to infinite loop when Memory Manage exception occurs */ while (1) { } } /** * @brief This function handles Bus Fault exception. * @param None * @retval None */ void BusFault_Handler(void) { /* Go to infinite loop when Bus Fault exception occurs */ while (1) { } } /** * @brief This function handles Usage Fault exception. * @param None * @retval None */ void UsageFault_Handler(void) { /* Go to infinite loop when Usage Fault exception occurs */ while (1) { } } /** * @brief This function handles SVCall exception. * @param None * @retval None */ void SVC_Handler(void) { } /** * @brief This function handles Debug Monitor exception. * @param None * @retval None */ void DebugMon_Handler(void) { } /** * @brief This function handles PendSVC exception. * @param None * @retval None */ void PendSV_Handler(void) { } /** * @brief This function handles SysTick Handler. * @param None * @retval None */ void SysTick_Handler(void) { // 添加SysTick中断处理 sysTickUptime++; } /******************************************************************************/ /* STM32F10x Peripherals Interrupt Handlers */ /* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ /* available peripheral interrupt handler's name please refer to the startup */ /* file (startup_stm32f10x_xx.s). */ /******************************************************************************/ /** * @brief This function handles USART3 global interrupt request. * @param None * @retval None */ void USART2_IRQHandler(void) { // 调用ESP8266模块的中断处理函数 extern void ESP8266_IRQHandler(void); ESP8266_IRQHandler(); } uint32_t HAL_GetTick(void) { return sysTickUptime; } /** * @} */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ /** ****************************************************************************** * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_it.h * @author MCD Application Team * @version V3.5.0 * @date 08-April-2011 * @brief This file contains the headers of the interrupt handlers. ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F10x_IT_H #define __STM32F10x_IT_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f10x.h" extern volatile uint32_t sysTickUptime; uint32_t HAL_GetTick(void); /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /* Exported macro ------------------------------------------------------------*/ /* Exported functions ------------------------------------------------------- */ void NMI_Handler(void); void HardFault_Handler(void); void MemManage_Handler(void); void BusFault_Handler(void); void UsageFault_Handler(void); void SVC_Handler(void); void DebugMon_Handler(void); void PendSV_Handler(void); void SysTick_Handler(void); #ifdef __cplusplus } #endif #endif /* __STM32F10x_IT_H */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ #include "esp8266.h" #include <string.h> #include "stm32f10x_usart.h" #include "stm32f10x_gpio.h" #include "stm32f10x_rcc.h" // 发送AT指令 void ESP8266_SendCmd(char* cmd, char* resp, uint16_t timeout) { USART_ClearFlag(ESP8266_USARTx, USART_FLAG_TC); // 发送命令 while(*cmd) { USART_SendData(ESP8266_USARTx, *cmd++); while(USART_GetFlagStatus(ESP8266_USARTx, USART_FLAG_TC) == RESET); } // 等待响应 uint32_t start = HAL_GetTick(); while(strstr((const char*)USART_RxBuffer, resp) == NULL) { if(HAL_GetTick() - start > timeout) { break; } } delay_ms(50); } // 初始化ESP8266为AP模式 void ESP8266_Init(void) { // 初始化USART2 USART_InitTypeDef USART_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); GPIO_InitTypeDef GPIO_InitStructure; // 配置USART2 Tx (PA2) 为复用推挽输出 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); // 配置USART2 Rx (PA3) 为浮空输入 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOA, &GPIO_InitStructure); USART_InitStructure.USART_BaudRate = ESP8266_USART_BAUDRATE; 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(ESP8266_USARTx, &USART_InitStructure); USART_Cmd(ESP8266_USARTx, ENABLE); // 添加NVIC中断配置 NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); // 配置ESP8266为AP模式 Delay_ms(1000); // 等待模块启动 ESP8266_SendCmd("AT+RST\r\n", "OK", 2000); ESP8266_SendCmd("AT+CWMODE=2\r\n", "OK", 2000); // 设置为AP模式 ESP8266_SendCmd("AT+CWSAP=\"ESP8266_AP\",\"12345678\",1,4\r\n", "OK", 2000); // 设置AP参数 ESP8266_SendCmd("AT+CIPMUX=1\r\n", "OK", 2000); // 允许多连接 ESP8266_SendCmd("AT+CIPSERVER=1,8080\r\n", "OK", 2000); // 开启TCP服务器 } // 发送数据到TCP客户端 u8 ESP8266_SendData(char* data) { char cmd[64]; sprintf(cmd, "AT+CIPSEND=0,%d\r\n", strlen(data)); ESP8266_SendCmd(cmd, "OK", 1000); // 等待OK响应 ESP8266_SendCmd(data, ">", 1000); // 等待>提示符 ESP8266_SendCmd((char*)0x1A, "SEND OK", 1000); // 发送Ctrl+Z return 0; } // esp8266.h #ifndef __ESP8266_H #define __ESP8266_H #include "stm32f10x.h" #include "stm32f10x_usart.h" #include "delay.h" #define ESP8266_USARTx USART2 #define ESP8266_USART_BAUDRATE 115200 void ESP8266_Init(void); void ESP8266_SendCmd(char* cmd); u8 ESP8266_SendData(char* data); #endif 将代码修改正确
时间: 2025-07-04 08:21:03 浏览: 169
<think>好的,我需要帮助用户修改他们的代码。首先,我得仔细阅读用户提供的代码,找出其中的问题。用户提到他们使用STM32F10x系列的MCU,结合DHT11、OLED、ESP8266等外设,但可能存在错误需要修正。
首先看主函数部分。在SystemClock_Config函数中,用户调用了SystemInit(),然后进行RCC_DeInit(),这可能有问题,因为SystemInit()已经初始化了系统时钟,而RCC_DeInit()会将RCC寄存器复位,可能导致冲突。正确的做法应该是在SystemInit()之后不再调用RCC_DeInit(),或者在配置前先确保时钟设置正确。
接下来,主函数中调用了DHT11_Init(),但需要确认DHT11的GPIO初始化是否正确,比如是否配置了正确的引脚为输入/输出,并且设置了适当的上拉电阻。此外,在读取数据时,DHT11_Read_Data函数是否正确处理了数据接收和校验?
然后看ESP8266部分。在ESP8266_SendCmd函数中,用户使用USART_ClearFlag(ESP8266_USARTx, USART_FLAG_TC)来清除标志位,但可能应该使用USART_GetFlagStatus来等待发送完成,而不是直接清除。另外,在发送命令后,用户等待响应时,使用了USART_RxBuffer,但需要确认USART接收部分是否正确配置,是否有中断处理将接收的数据存入该缓冲区。目前的代码中,USART2的中断处理函数调用了ESP8266_IRQHandler,但该函数的具体实现未给出,可能需要检查是否正确处理了接收数据。
在ESP8266_Init函数中,配置了USART2的GPIO为PA2和PA3,但STM32F10x的USART2通常使用PA2作为TX,PA3作为RX,这部分是正确的。但NVIC配置是否正确?是否启用了USART2的全局中断?此外,在发送AT指令时,用户调用了ESP8266_SendCmd函数,但该函数的参数中resp可能没有正确处理,比如期望的响应是否正确,超时时间是否合理。
另外,在主循环中,每次读取温湿度后都会调用ESP8266_SendData发送数据,但ESP8266_SendData函数中的发送流程是否正确?比如发送AT+CIPSEND指令后,是否等待正确的提示符如">",然后再发送数据,最后发送Ctrl+Z。需要确认是否正确处理了每个步骤的响应。
还有一些小问题,比如变量定义是否正确,比如wifi_data数组是否在main函数中声明,还有在OLED显示部分,是否正确使用了显示函数,特别是中文字符显示函数OLED_ShowCN是否正确实现了字库支持。
综合以上问题,需要逐一检查各个模块的初始化配置、函数调用是否正确,以及各外设之间的交互是否存在问题。例如,确保USART的配置正确,中断处理正确,AT指令的发送和响应处理可靠,GPIO配置正确,以及各外设驱动函数的正确性。</think>以下是代码中存在的问题及修改建议:
1. **系统时钟配置冲突**
```c
// 修改SystemClock_Config函数,移除RCC_DeInit()
void SystemClock_Config(void) {
//SystemInit(); // 已在启动文件调用
RCC_HSEConfig(RCC_HSE_ON);
if(!RCC_WaitForHSEStartUp()) {
while(1);
}
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
FLASH_SetLatency(FLASH_Latency_2);
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while(!RCC_GetFlagStatus(RCC_FLAG_PLLRDY));
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource() != 0x08);
}
```
2. **USART接收缓冲区未定义**
```c
// 在esp8266.h或全局变量中添加
#define RX_BUFFER_SIZE 128
extern uint8_t USART_RxBuffer[RX_BUFFER_SIZE];
```
3. **ESP8266发送函数修正**
```c
// 修改ESP8266_SendCmd函数
void ESP8266_SendCmd(char* cmd, char* resp, uint16_t timeout) {
// 清空接收缓冲区
memset(USART_RxBuffer, 0, RX_BUFFER_SIZE);
// 发送命令
while(*cmd) {
USART_SendData(ESP8266_USARTx, *cmd++);
while(!USART_GetFlagStatus(ESP8266_USARTx, USART_FLAG_TXE));
}
// 等待响应
uint32_t start = HAL_GetTick();
while(strstr((char*)USART_RxBuffer, resp) == NULL) {
if(HAL_GetTick() - start > timeout) {
break;
}
}
delay_ms(50);
}
```
4. **添加USART中断处理**
```c
// 在stm32f10x_it.c中添加USART2中断处理
void USART2_IRQHandler(void) {
static uint8_t rx_index = 0;
if(USART_GetITStatus(ESP8266_USARTx, USART_IT_RXNE) != RESET) {
uint8_t data = USART_ReceiveData(ESP8266_USARTx);
if(rx_index < RX_BUFFER_SIZE-1) {
USART_RxBuffer[rx_index++] = data;
USART_RxBuffer[rx_index] = '\0'; // 保持字符串结束符
}
}
}
```
5. **主函数中添加WiFi数据缓冲区定义**
```c
// 在main函数全局变量中添加
char wifi_data[64];
```
6. **OLED显示函数修正**
```c
// 确认OLED显示函数参数正确
OLED_ShowChar(0, 0, 'T'); // 如果没有中文显示支持,改用ASCII字符
OLED_ShowChar(0, 16, 'H');
OLED_ShowChar(64, 16, '%');
OLED_ShowChar(64, 0, 'C');
```
7. **DHT11数据读取优化**
```c
// 在DHT11_Read_Data后添加延时
if(DHT11_Read_Data(&temp, &humi)) {
// 添加最小2秒间隔
static uint32_t last_time = 0;
if(HAL_GetTick() - last_time >= 2000) {
// 数据处理代码
last_time = HAL_GetTick();
}
}
```
8. **NVIC配置优化**
```c
// 在ESP8266_Init中添加USART中断使能
USART_ITConfig(ESP8266_USARTx, USART_IT_RXNE, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
```
9. **添加必要的头文件**
```c
// 在main.c顶部添加
#include "stdio.h"
#include "string.h"
```
10. **添加USART接收缓冲区定义**
```c
// 在esp8266.c中添加
uint8_t USART_RxBuffer[RX_BUFFER_SIZE];
```
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