lora_bl/Core/Src/main.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <time.h>
#include <stdlib.h>
#include "ring_buffer.h"

#include "string.h"
#include "E52.h"
#include "E104-BT5005A.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
RTC_HandleTypeDef hrtc;

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart2;
UART_HandleTypeDef huart3;
DMA_HandleTypeDef hdma_usart2_rx;
DMA_HandleTypeDef hdma_usart3_rx;

/* USER CODE BEGIN PV */
uint8_t rx_buf[25] = {0};
uint8_t rx_buf_uart2[25] = {0};
uint8_t rx_buf_uart2_DMA[25] = {0};
// uint8_t totalData[50][25] = {0};
// uint8_t uart2_rx_byte[10] = {0};
uint8_t loraSendNextDataFlag = 0;

uint8_t receiveBlDataCount = 0;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_USART2_UART_Init(void);
static void MX_USART3_UART_Init(void);
static void MX_RTC_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdio.h>

int __io_putchar(int ch)
{
  uint8_t c = ch;
  HAL_UART_Transmit(&huart1, &c, 1, HAL_MAX_DELAY);
  return ch;
}

void Device_Info_Init_Fun() {
  //初始化环形缓冲区
  RingBuffer_Init(&deviceInfo.queueBLData);
  RingBuffer_Init(&deviceInfo.queueLoraCommandData);

  deviceInfo.isOnline = FALSE;
  deviceInfo.broadcast_type = BROADCAST_ALL;
  deviceInfo.loraDeviceAddress_H = 0xFE; //默认地址高位
  deviceInfo.loraDeviceAddress_L = 0xEF; //默认地址低位
  deviceInfo.powerValue = 0;
  deviceInfo.target_addr_H = 0xFF;
  deviceInfo.target_addr_L = 0xFF;
  deviceInfo.BlDataFlag = BL_IDLE;
  // deviceInfo.newLoraDataFlag = 0;
  // deviceInfo.isReady = 0;
  // deviceInfo.loraSendSuccessFlag = 0;
  deviceInfo.BlDataFlag = BL_START;
  deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);  //初始化
  //TODO: 大循环，获取设备地址信息，否则重新发送。发送上线信息，等待反馈，否则重新发送上线信息。一切准备就绪后，开启isready为1，进入工作模式。
  // while (1){}
}

// 保留通用框架，但仅处理定时器4
// HAL_StatusTypeDef Timer_Managment_Fun(TIM_HandleTypeDef *htim, Timer_Operation op) {
//   HAL_StatusTypeDef status = HAL_ERROR;  // 默认返回错误状态
//
//   // 只处理定时器4，其他定时器直接返回错误
//   if (htim->Instance != TIM4) {
//     printf("错误：仅支持定时器 TIM4\r\n");
//     return status;
//   }
//
//   if (htim == NULL) {
//     printf("错误：定时器句柄为空\r\n");
//     return status;
//   }
//
//   switch (op) {
//     case TIMER_OP_START:
//       // 检查定时器4是否处于就绪状态
//       if (htim->State == HAL_TIM_STATE_READY) {
//         status = HAL_TIM_Base_Start_IT(htim);  // 启动定时器+使能中断
//         if (status == HAL_OK) {
//           printf("定时器 TIM4 启动成功\r\n");
//         } else {
//           printf("定时器 TIM4 启动失败，状态码: %d\r\n", status);
//         }
//       }
//       break;
//
//     case TIMER_OP_STOP:
//       // 检查定时器4是否正在运行
//       if (htim->State == HAL_TIM_STATE_BUSY) {
//         status = HAL_TIM_Base_Stop_IT(htim);  // 停止定时器+禁用中断
//         if (status == HAL_OK) {
//           printf("定时器 TIM4 停止成功\r\n");
//         } else {
//           printf("定时器 TIM4 停止失败，状态码: %d\r\n", status);
//         }
//       }
//       break;
//
//     default:
//       printf("错误：未知的定时器操作类型\r\n");
//       break;
//   }
//
//   return status;
// }
//开启供电
void powerOn() {

  HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_SET);
  HAL_GPIO_WritePin(PowerLED_GPIO_Port, PowerLED_Pin, GPIO_PIN_SET);

}
//设备关闭供电
void powerOff() {
  HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_RESET);
}

// uint32_t RTC_CalcDiffSeconds(RTC_DateTimeTypeDef *t1, RTC_DateTimeTypeDef *t2)
// {
//   uint32_t s1 = t1->hours * 3600 + t1->minutes * 60 + t1->seconds;
//   uint32_t s2 = t2->hours * 3600 + t2->minutes * 60 + t2->seconds;
//
//   if (s2 >= s1)
//     return s2 - s1;
//   else
//     return 24*3600 - (s1 - s2);  // 跨零点的情况
// }

void Flash_Write_LoraAddr(uint8_t addrH, uint8_t addrL)
{
  HAL_FLASH_Unlock();

  // 擦除 1 页（1024字节）
  FLASH_EraseInitTypeDef eraseInit;
  uint32_t PageError = 0;
  eraseInit.TypeErase   = FLASH_TYPEERASE_PAGES;
  eraseInit.PageAddress = FLASH_USER_ADDR;
  eraseInit.NbPages     = 1;
  HAL_FLASHEx_Erase(&eraseInit, &PageError);

  // 组合两个字节为一个半字（高字节 | 低字节）
  uint16_t halfword = ((uint16_t)addrH << 8) | addrL;

  // 写入
  HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, FLASH_USER_ADDR, halfword);

  HAL_FLASH_Lock();
}

void Flash_Read_LoraAddr(uint8_t *addrH, uint8_t *addrL)
{
  uint16_t halfword = *(uint16_t*)FLASH_USER_ADDR;
  *addrH = (halfword >> 8) & 0xFF;
  *addrL = halfword & 0xFF;
}

// 工具函数：计算时间差（秒）
int GetElapsedSeconds(RTC_TimeTypeDef *start, RTC_TimeTypeDef *end) {
  int s1 = start->Hours * 3600 + start->Minutes * 60 + start->Seconds;
  int s2 = end->Hours * 3600 + end->Minutes * 60 + end->Seconds;
  int diff = s2 - s1;
  if (diff < 0) diff += 24 * 3600;  // 跨天修正
  return diff;
}

// 工具函数：判断是否超过指定秒数
int IsTimeElapsed(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *last, uint32_t interval) {
  RTC_TimeTypeDef now = {0};
  HAL_RTC_GetTime(hrtc, &now, RTC_FORMAT_BIN);

  int diff = GetElapsedSeconds(last, &now);
  if (diff >= interval) {
    *last = now;  // 更新上次时间
    return 1;     // 超时
  }
  return 0;         // 未超时
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();
  MX_USART3_UART_Init();
  MX_RTC_Init();
  /* USER CODE BEGIN 2 */

  powerOn();
  E52_CtlPowerOn_Fun();
  Device_Info_Init_Fun();
  // 启动 USART2 DMA 接收
  HAL_UART_Receive_DMA(&huart3, rx_buf, sizeof(rx_buf));
  __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
  HAL_UART_Receive_DMA(&huart2, rx_buf_uart2_DMA, sizeof(rx_buf_uart2_DMA));
  __HAL_UART_ENABLE_IT(&huart2, UART_IT_IDLE);
  Flash_Read_LoraAddr(&deviceInfo.loraDeviceAddress_H, &deviceInfo.loraDeviceAddress_L);
  // printf("deviceInfo.loraDeviceAddress_H:%02X,deviceInfo.loraDeviceAddress_L:%02X\r\n", deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);
  if (deviceInfo.loraDeviceAddress_H == 0xFF || deviceInfo.loraDeviceAddress_L == 0xFF || deviceInfo.loraDeviceAddress_H == 0x00 || deviceInfo.loraDeviceAddress_L == 0x00) { // 未设置Lora地址，应该是初次启动，配置Lora地址蓝牙等
    HAL_Delay(4000);
    printf("开始初始化\r\n");
    printf("切换为观察者模式\r\n");
    E104_BT5005A_ROLE_Fun();
    HAL_Delay(2000);
    printf("初始化扫描间隔\r\n");
    E104_BT5005A_SCANINTV_Fun();
    HAL_Delay(2000);
    printf("初始化扫描窗口\r\n");
    E104_BT5005A_SCANWND_Fun();
    HAL_Delay(2000);


    printf("初始化复位\r\n");
    E104_BT5005A_RESET_Fun();
    HAL_Delay(2000);
    printf("开启Lora广播模块\r\n");
    E52_CONFIG_BROADCAST_TYPE_FUN(BROADCAST_ALL);
    HAL_Delay(2000);
    const char *lora_msg1 = "AT+TYPE=1";
    HAL_UART_Transmit(&huart2, (uint8_t *)lora_msg1, strlen(lora_msg1), HAL_MAX_DELAY);
    HAL_Delay(2000);
    const char *lora_msg3 = "AT+HEAD=0";
    HAL_UART_Transmit(&huart2, (uint8_t *)lora_msg3, strlen(lora_msg3), HAL_MAX_DELAY);
    HAL_Delay(2000);
    const char *lora_msg4 = "AT+SRC_ADDR=?";
    HAL_UART_Transmit(&huart2, (uint8_t *)lora_msg4, strlen(lora_msg4), HAL_MAX_DELAY);
    HAL_Delay(2000);

    while (TRUE) {
      if (deviceInfo.loraDeviceAddress_H == 0xFF && deviceInfo.loraDeviceAddress_L == 0xFF) {
        HAL_UART_Transmit(&huart2, (uint8_t *)lora_msg4, strlen(lora_msg4), HAL_MAX_DELAY);
        HAL_Delay(4000);
      }else {
        break;
      }
    }
  }else {
    printf("已配置\r\n");
  }

  srand(HAL_GetTick());
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */

  printf("设备地址：0x%02X%02X\n", deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);
  uint8_t i = 0;
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

    // 检查是否接收到"心跳"命令，且设备在线
    printf("设备状态：0x%02X\n", deviceInfo.commandFromCloud);
    printf("Device is ready: %d\r\n", deviceInfo.isOnline);
    // schedule_Fun();
    // 心跳：不在线时，每 10 秒发一次
    if (!deviceInfo.isOnline) {
      if (IsTimeElapsed(&hrtc, &Online_struct, 10)) {
        E52_Heartbeat_Fun();
      }
    }

    // IDLE 检测
    if (GET_CMD(deviceInfo.commandFromCloud) == IDLE || GET_STEP(deviceInfo.commandFromCloud) == STEP_INIT) {
      HAL_RTC_GetTime(&hrtc, &IDLE_struct, RTC_FORMAT_BIN);  // 直接更新
    } else {
      if (IsTimeElapsed(&hrtc, &IDLE_struct, 20*60)) {
        deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
      }
    }



    // 解析后台命令
    if (GET_CMD( deviceInfo.commandFromCloud) == IDLE && GET_STEP(deviceInfo.commandFromCloud) == STEP_VERIFY) {
      E52_Analyze_Data();
    }

    // 03:请求蓝牙数据
    if (GET_CMD(deviceInfo.commandFromCloud) == REQUEST_BLUETOOTH_DATA && deviceInfo.isOnline )  {
      switch (GET_STEP(deviceInfo.commandFromCloud)) {
        case REQUEST_BLUETOOTH_DATA_SCAN:
          deviceInfo.BlDataFlag = BL_STOP;
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, REQUEST_BLUETOOTH_DATA_SEND);
          break;

        case REQUEST_BLUETOOTH_DATA_SEND:
          uint8_t sentData_Temp[25] = {0};
          if (TRUE) {   //   5   5
            if (RingBuffer_Dequeue(&deviceInfo.queueBLData, sentData_Temp) == 0 && deviceInfo.forwardBLAndLoraDataCount < deviceInfo.forwardBLAndLoraDataCountMax) {
              //不为空的情况下
              E52_Send_Bl_Data_Fun(sentData_Temp,0x00);
              deviceInfo.forwardBLAndLoraDataCount++;
            } else {
              //为空的情况下
              // printf("发送最后一位，开始发送蓝牙数据给Lora\r\n");
              uint8_t endFrame[25] = {0};
              E52_Send_Bl_Data_Fun(endFrame,0x01);
              deviceInfo.BlDataFlag = BL_START;
              deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, STEP_COMPLETE);
              printf("发送完成\r\n");
            }
            HAL_Delay(deviceInfo.forwardBLAndLoraDataDuration);//后台配置间隔时间
          }
          break;          //发送数据阶段
        case STEP_COMPLETE:
          deviceInfo.forwardBLAndLoraDataDuration = 0;
          i = 0;
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          break;

        default:
          // 处理未知步骤
          receiveBlDataCount = 0;
          deviceInfo.forwardBLAndLoraDataDuration = 0;
          i = 0;
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          break;
      }
    }

    // 08:请求心跳数据
    if (GET_CMD( deviceInfo.commandFromCloud)  == E52_HEARTBEAT && deviceInfo.isOnline) {
      switch (GET_STEP(deviceInfo.commandFromCloud)) {
        case HEARTBEAT_SEND:
          if (TRUE) {
            E52_Heartbeat_Fun();
            deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, STEP_COMPLETE);
          }
          break;
        case STEP_COMPLETE:
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          break;

        default:
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          printf("收到未知步骤，忽略处理\r\n");
          break;
      }
    }

    // 07:配置E52
    if (GET_CMD( deviceInfo.commandFromCloud)  == CONFIGURE_E52 && deviceInfo.isOnline) {
      switch (GET_STEP(deviceInfo.commandFromCloud)) {
          case CONFIGURE_E52_SET_BROADCAST_TYPE:      //第一步，配置广播类型
              E52_CONFIG_BROADCAST_TYPE_FUN(deviceInfo.broadcast_type);
              HAL_Delay(2000);
              if (deviceInfo.broadcast_type == BROADCAST_ALL) {
                deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, STEP_COMPLETE);       //TODO 广播，直接结束.或者进入测试流程。
              }else {
                deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, CONFIGURE_E52_SET_LORA_ADDRESS); //第三步，配置Lora地址
              }
          break;

          case CONFIGURE_E52_SET_LORA_ADDRESS:
              E104_BT5005A_DST_ADDR_Fun();
              HAL_Delay(2000);
              deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, STEP_COMPLETE);       //TODO 广播，直接结束.或者进入测试流程。
          break;        //如果是单波，多播，配置目标地址

          case STEP_COMPLETE:
            if (TRUE) {
              E52_Heartbeat_Fun();
            }
            deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          break;

          default:
            printf("未知配置命令\r\n");
            deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
          ;break;
      }
    }

  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief RTC Initialization Function
  * @param None
  * @retval None
  */
static void MX_RTC_Init(void)
{

  /* USER CODE BEGIN RTC_Init 0 */

  /* USER CODE END RTC_Init 0 */

  RTC_TimeTypeDef sTime = {0};
  RTC_DateTypeDef DateToUpdate = {0};

  /* USER CODE BEGIN RTC_Init 1 */

  /* USER CODE END RTC_Init 1 */

  /** Initialize RTC Only
  */
  hrtc.Instance = RTC;
  hrtc.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
  hrtc.Init.OutPut = RTC_OUTPUTSOURCE_ALARM;
  if (HAL_RTC_Init(&hrtc) != HAL_OK)
  {
    Error_Handler();
  }

  /* USER CODE BEGIN Check_RTC_BKUP */

  /* USER CODE END Check_RTC_BKUP */

  /** Initialize RTC and set the Time and Date
  */
  sTime.Hours = 0;
  sTime.Minutes = 0;
  sTime.Seconds = 0;

  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)
  {
    Error_Handler();
  }
  DateToUpdate.WeekDay = RTC_WEEKDAY_MONDAY;
  DateToUpdate.Month = RTC_MONTH_JANUARY;
  DateToUpdate.Date = 1;
  DateToUpdate.Year = 0;

  if (HAL_RTC_SetDate(&hrtc, &DateToUpdate, RTC_FORMAT_BIN) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN RTC_Init 2 */

  /* USER CODE END RTC_Init 2 */

}

/**
  * @brief USART1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART1_UART_Init(void)
{

  /* USER CODE BEGIN USART1_Init 0 */

  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 115200;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */

  /* USER CODE END USART1_Init 2 */

}

/**
  * @brief USART2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART2_UART_Init(void)
{

  /* USER CODE BEGIN USART2_Init 0 */

  /* USER CODE END USART2_Init 0 */

  /* USER CODE BEGIN USART2_Init 1 */

  /* USER CODE END USART2_Init 1 */
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 115200;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART2_Init 2 */

  /* USER CODE END USART2_Init 2 */

}

/**
  * @brief USART3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART3_UART_Init(void)
{

  /* USER CODE BEGIN USART3_Init 0 */

  /* USER CODE END USART3_Init 0 */

  /* USER CODE BEGIN USART3_Init 1 */

  /* USER CODE END USART3_Init 1 */
  huart3.Instance = USART3;
  huart3.Init.BaudRate = 115200;
  huart3.Init.WordLength = UART_WORDLENGTH_8B;
  huart3.Init.StopBits = UART_STOPBITS_1;
  huart3.Init.Parity = UART_PARITY_NONE;
  huart3.Init.Mode = UART_MODE_TX_RX;
  huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart3.Init.OverSampling = UART_OVERSAMPLING_16;
  if (HAL_UART_Init(&huart3) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART3_Init 2 */

  /* USER CODE END USART3_Init 2 */

}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{

  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();

  /* DMA interrupt init */
  /* DMA1_Channel3_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
  /* DMA1_Channel6_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel6_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel6_IRQn);

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  /* USER CODE BEGIN MX_GPIO_Init_1 */

  /* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_SET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(CTL_LORA_POWER_GPIO_Port, CTL_LORA_POWER_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(PowerLED_GPIO_Port, PowerLED_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pins : SOS_KEY_Pin JUGE_PIN_Pin */
  GPIO_InitStruct.Pin = SOS_KEY_Pin|JUGE_PIN_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : POWER_ON_Pin */
  GPIO_InitStruct.Pin = POWER_ON_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(POWER_ON_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : CTL_LORA_POWER_Pin */
  GPIO_InitStruct.Pin = CTL_LORA_POWER_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(CTL_LORA_POWER_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : PowerLED_Pin */
  GPIO_InitStruct.Pin = PowerLED_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(PowerLED_GPIO_Port, &GPIO_InitStruct);

  /* EXTI interrupt init*/
  HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);

  /* USER CODE BEGIN MX_GPIO_Init_2 */

  /* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM3 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
  /* USER CODE BEGIN Callback 0 */

  /* USER CODE END Callback 0 */
  if (htim->Instance == TIM3)
  {
    HAL_IncTick();
  }
  /* USER CODE BEGIN Callback 1 */

  /* USER CODE END Callback 1 */
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */